i.MX8MQ: Does the Boot ROM support booting from FlexSPI/QSPI NOR flash? Hello, Hardware: - i.MX8MQ (REV A0), custom board based on EVK design - QSPI NOR: Micron MT25QL256A (32MB, 3.3V, Quad connected) - BSP: Yocto Scarthgap, NXP BSP, U-Boot 2024.04 (u-boot-imx) Goal: Boot the bootloader (SPL + ATF + U-Boot) from FlexSPI NOR flash. Kernel and rootfs remain on eMMC. What works: - U-Boot (loaded to RAM via uuu SDP/SDPV) runs fine - "sf probe" detects the flash correctly: mt25ql256a, 32 MiB - U-Boot can read and write the flash reliably (verified with read-back tests after "sf protect unlock") - Image is built with IMXBOOT_TARGETS = "flash_evk_flexspi" Flash layout (verified by reading back from the chip): 0x000000: FCFB header - "qspihdr check" reports "Found boot config header in Q(F)SPI" tag = 42464346, version = 56010000 0x001000: IVT - d1 00 20 41, entry = 0x007E1000, boot_data = 0x007E0FE0, self = 0x007E0FC0 0x060000: U-Boot proper FIT (d00dfeed), matches CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000 Problem: With boot switches set to QSPI/FlexSPI boot and the USB cable physically disconnected, the board does not boot. Nothing is printed on the serial console (SPL banner never appears), and the ROM falls back to serial download mode: uuu -lsusb 2:1 MX8MQ SDP: 0x1FC9 0x012B NXP FLASH BT_FUSE_SEL is not blown; boot configuration is done via GPIO boot pins. What I have already tried: - Both header formats: scripts/qspi_header (c0ffee01 tag) and scripts/fspi_header (FCFB tag). Fixed soc.mak so that flash_evk_flexspi uses fspi_header with offset 0. - Varying FCFB parameters: sflashA1Size, serialClkFreq (50MHz -> 20MHz), dataSetupTime/dataHoldTime, sflashPadType - "uuu -b qspi" (the official built-in script) - "qspihdr update safe" and "qspihdr init safe" - Erasing the flash completely vs. writing the full image: boot behaviour is essentially identical (SDP appears after ~1.6s vs ~1.8s), which suggests the ROM may not be reading the flash at all. Questions: 1. Does the i.MX8MQ Boot ROM support booting from serial NOR flash over FlexSPI at all? The Reference Manual section I have lists NAND flash and SD/MMC as boot devices, but I could not find FlexSPI/QSPI NOR listed. i.MX8MM/8MN documentation seems to describe it, but I am unsure about 8MQ. 2. If it is supported, what is the exact expected flash layout? Should the IVT be at offset 0x400 or 0x1000 when an FCFB is present at 0x0? 3. What is the correct BOOT_MODE / BOOT_CFG combination to select FlexSPI NOR boot on i.MX8MQ? 4. Are there any known errata for REV A0 silicon regarding FlexSPI boot? Thank you.

RD33771CNTREVM + FreeMASTER 项目 您好， 我目前正在评估 RD33771CNTREVM（高压电池管理系统）参考设计板。 根据用户手册（UM11310），该板通过 CAN0 接口（连接器 J12）输出原始寄存器数据。虽然我可以使用标准的 CAN-USB 接口读取原始十六进制消息，但我正在寻找一种更有效的实时可视化电池电压和温度的方法。 我注意到，对于类似的硅组合（S32K144 + MC33771C），NXP 在 BCC 软件驱动程序代码包，软件包中提供了 BCC_S32K144_FreeMASTER 示例项目。 在开始修改引脚布线并将这个通用示例移植到 RD33771CNTREVM 的特定硬件布局之前，我想问一下： NXP是否有专用的FreeMASTER项目（.pmp / .pmpx）？以及相应的 .elf 文件专为RD33771CNTREVM板定制的固件？ 感谢您的支持。 Re: RD33771CNTREVM + FreeMASTER project 嗨，马文， 我找到了应用团队对另一位客户的回复，该客户曾询问RD33771CNTREVM 的 FreeMASTER 示例。很遗憾，我们目前没有 FreeMASTER 示例，只有 EvalGUI。请查看以下回复。您可以从MC33771C 产品页面下载 EvalGUI，它是公开提供的。 JozefKozon_0-1785486988566.png 给您带来的不便，敬请谅解。 说明 很遗憾，情况确实如此，示例代码附带的 FreeMaster 接口仅适用于单个节点。目前来看，它不支持 4 个节点，只有第一个节点会被初始化和监测。 对于这个分布式平台，唯一可用于多个节点的 GUI 是 EvalGUI 5.15。 最诚挚的问候， 约瑟夫 Re: RD33771CNTREVM + FreeMASTER project 嗨，约瑟夫， 谢谢你的回答。我试用了 EvalGUI 5.15，但它在 Windows 11 上运行缓慢，而且只能通过 COM 端口工作。RD33771CNTREVM 具有 CAN 输出…… 我看看能不能从PCB板上获取RX和TX信号。然后我可以修改开发套件的原始固件，使其具有 EvalGUI 5.15 所期望的相同输入/输出消息。 但我仍然希望开发套件能采用 PC SW 或 FreeMASTER 项目。那将非常有帮助。 Re: RD33771CNTREVM + FreeMASTER project 嗨，马文， 目前除了MC33771C和RD33771CNTREVM产品页面中提供的软件外，没有其他软件。由于 MC33771C 是一款老产品，虽然仍在生产，但可能不会有新的软件。我们有更新的BCC。对于新设计，我更推荐您选择 24 通道或 26 通道的 BCC。BMA7x2x系列。这些是BCC的最新元器件。 https://www.nxp.com/products/product-selector:PRODUCT-SELECTOR?category=c40_c328&page=1&nrnd=false JozefKozon_0-1785495573469.png 最诚挚的问候， 约瑟夫

RMII 中 imx93 和 eqos 出现 DMA 错误 我正在尝试让以太网与连接到 eqos 的 LAN8742A PHY 配合使用，采用 RMII 模式。 我以 imx93-11x11-frdm.dts 为基础，并进行了以下更改： &iomuxc { pinctrl_eqos: eqosgrp { fsl,pins = < MX93_PAD_ENET1_MDC__ENET_QOS_MDC 0x57e /* OK */ MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO 0x57e /* OK */ MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0 0x57e /* OK */ MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1 0x57e /* OK */ /* MX93_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2 0x57e MX93_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3 0x57e */ MX93_PAD_ENET1_RXC__ENET_QOS_RX_ER 0x51e /* OK */ /* MX93_PAD_ENET1_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK 0x51e */ MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x57e /* OK */ MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0 0x57e /* OK */ MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1 0x57e /* OK */ /* refclock for Eth phy */ MX93_PAD_ENET1_TD2__CCM_ENET_QOS_CLOCK_GENERATE_REF_CLK 0x57e /* OK */ /* MX93_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2 0x57e MX93_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3 0x57e */ /* MX93_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x5fe */ MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x0000051e /* OK */ /* MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x57e */ >; }; &eqos { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_eqos>; phy-mode = "rmii"; phy-handle = <&ethphy1>; status = "okay"; /delete-property/ assigned-clocks; /delete-property/ assigned-clock-rates; assigned-clocks = <&clk IMX93_CLK_ENET_TIMER2>, <&clk IMX93_CLK_ENET>; assigned-clock-rates = <100000000>, <50000000>; mdio { compatible = "snps,dwmac-mdio"; #address-cells = <1>; #size-cells = <0>; clock-frequency = <5000000>; ethphy1: ethernet-phy@0 { reg = <0>; eee-broken-1000tx; post-power-on-delay-ms = <100>; reset-gpios = <&pcal6524 19 GPIO_ACTIVE_LOW>; reset-assert-us = <15000>; reset-deassert-us = <100000>; }; }; }; U-Boot 中的结果是： u-boot=> bootp EQOS_DMA_MODE_SWR stuckFAILED: -110 u-boot=> Linux 系统中的结果为： [ 11.484536] imx-dwmac 428a0000.ethernet: Failed to reset the dma [ 11.490536] imx-dwmac 428a0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 11.499228] imx-dwmac 428a0000.ethernet eth0: __stmmac_open: Hw setup failed 我不明白我哪里做错了，哪里配置错误了，或者为什么DMA无法正确初始化。很明显我漏掉了一些东西（DMA 错误看起来像是芯片内部的错误，所以即使引脚复用出现错误，我认为也不会出现这种情况，而且我已经仔细检查过引脚复用了）。 我检查过的项目： 时钟信号已正确发送至PHY。 与mdio上的PHY通信正常 任何提示都将不胜感激。 顺祝商祺！ 朱利安 Re: DMA Error with imx93 and eqos in RMII uboot 中的 RESET 设置正确。我可以看到 PHY 芯片工作正常（LED 灯亮着），并且可以与它通信，但我仍然会收到 DMA 错误。 我尝试通过 u-boot 中的复位引脚手动禁用和重新启用 PHY，但这并没有任何改变。 以下是 dmesg 的完整日志： [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x412fd050] [ 0.000000] Linux version 6.6.36 ([email protected]@UC155-BE2) (aarch64-sprinte450sp-linux-gnu-gcc.br_real (Buildroot 2026.05-2-gf0cfb0f3cf-dirty) 14.3.0, GNU ld (GNU Binutils) 2.45.1) #4 SMP PREEMPT Thu Jul 23 17:04:50 CEST 2026 [ 0.000000] KASLR disabled due to lack of seed [ 0.000000] Machine model: Sprinte 450SP board [ 0.000000] efi: UEFI not found. [ 0.000000] Reserved memory: created CMA memory pool at 0x00000000b0000000, size 256 MiB [ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x00000000b0000000..0x00000000bfffffff (262144 KiB) map reusable linux,cma [ 0.000000] earlycon: lpuart32 at MMIO32 0x0000000044380000 (options '') [ 0.000000] printk: bootconsole [lpuart32] enabled [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] NUMA: NODE_DATA [mem 0xafdcf6c0-0xafdd1fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] DMA32 empty [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.1 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] psci: SMC Calling Convention v1.4 [ 0.000000] percpu: Embedded 22 pages/cpu s50600 r8192 d31320 u90112 [ 0.000000] pcpu-alloc: s50600 r8192 d31320 u90112 alloc=22*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: detected: GIC system register CPU interface [ 0.000000] CPU features: detected: Virtualization Host Extensions [ 0.000000] CPU features: detected: Qualcomm erratum 1009, or ARM erratum 1286807, 2441009 [ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: console=ttyLP0,115200 earlycon root=/dev/mmcblk1p2 rootwait rw [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 0.000000] Fallback order for Node 0: 0 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 258048 [ 0.000000] Policy zone: DMA [ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off [ 0.000000] software IO TLB: area num 2. [ 0.000000] software IO TLB: mapped [mem 0x00000000aac00000-0x00000000aec00000] (64MB) [ 0.000000] Memory: 666980K/1048576K available (20608K kernel code, 1638K rwdata, 7744K rodata, 1984K init, 643K bss, 119452K reserved, 262144K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] Tracing variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: 960 SPIs implemented [ 0.000000] GICv3: 0 Extended SPIs implemented [ 0.000000] Root IRQ handler: gic_handle_irq [ 0.000000] GICv3: GICv3 features: 16 PPIs [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000048040000 [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns [ 0.000000] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns [ 0.008305] Console: colour dummy device 80x25 [ 0.012529] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=96000) [ 0.022711] pid_max: default: 32768 minimum: 301 [ 0.027347] LSM: initializing lsm=capability,integrity [ 0.032485] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.039785] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.048237] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 0.054656] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1. [ 0.061512] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1. [ 0.069127] rcu: Hierarchical SRCU implementation. [ 0.073752] rcu: Max phase no-delay instances is 1000. [ 0.079653] EFI services will not be available. [ 0.084098] smp: Bringing up secondary CPUs ... [ 0.088812] Detected VIPT I-cache on CPU1 [ 0.088870] GICv3: CPU1: found redistributor 100 region 0:0x0000000048060000 [ 0.088904] CPU1: Booted secondary processor 0x0000000100 [0x412fd050] [ 0.089007] smp: Brought up 1 node, 2 CPUs [ 0.110357] SMP: Total of 2 processors activated. [ 0.115028] CPU features: detected: 32-bit EL0 Support [ 0.120154] CPU features: detected: 32-bit EL1 Support [ 0.125257] CPU features: detected: Data cache clean to the PoU not required for I/D coherence [ 0.133840] CPU features: detected: Common not Private translations [ 0.140073] CPU features: detected: CRC32 instructions [ 0.145196] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.150906] CPU features: detected: LSE atomic instructions [ 0.156453] CPU features: detected: Privileged Access Never [ 0.161998] CPU features: detected: RAS Extension Support [ 0.167374] CPU features: detected: Speculative Store Bypassing Safe (SSBS) [ 0.174355] CPU: All CPU(s) started at EL2 [ 0.178380] alternatives: applying system-wide alternatives [ 0.187922] devtmpfs: initialized [ 0.194925] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.204430] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 0.216607] pinctrl core: initialized pinctrl subsystem [ 0.223019] DMI not present or invalid. [ 0.227066] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.233367] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations [ 0.240250] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 0.247941] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 0.255804] audit: initializing netlink subsys (disabled) [ 0.261291] audit: type=2000 audit(0.172:1): state=initialized audit_enabled=0 res=1 [ 0.261671] thermal_sys: Registered thermal governor 'step_wise' [ 0.268851] thermal_sys: Registered thermal governor 'power_allocator' [ 0.274855] cpuidle: using governor menu [ 0.285411] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.292025] ASID allocator initialised with 65536 entries [ 0.297950] Serial: AMBA PL011 UART driver [ 0.301832] imx mu driver is registered. [ 0.305685] imx rpmsg driver is registered. [ 0.314130] imx93-pinctrl 443c0000.pinctrl: initialized IMX pinctrl driver [ 0.326962] Modules: 24576 pages in range for non-PLT usage [ 0.326973] Modules: 516096 pages in range for PLT usage [ 0.333009] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 0.344824] HugeTLB: 0 KiB vmemmap can be freed for a 1.00 GiB page [ 0.351063] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages [ 0.357821] HugeTLB: 0 KiB vmemmap can be freed for a 32.0 MiB page [ 0.364062] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 0.370821] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page [ 0.377062] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages [ 0.383821] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page [ 0.391518] ACPI: Interpreter disabled. [ 0.395792] iommu: Default domain type: Translated [ 0.400360] iommu: DMA domain TLB invalidation policy: strict mode [ 0.406743] SCSI subsystem initialized [ 0.410355] libata version 3.00 loaded. [ 0.410523] usbcore: registered new interface driver usbfs [ 0.415761] usbcore: registered new interface driver hub [ 0.421054] usbcore: registered new device driver usb [ 0.426646] mc: Linux media interface: v0.10 [ 0.430689] videodev: Linux video capture interface: v2.00 [ 0.436154] pps_core: LinuxPPS API ver. 1 registered [ 0.441049] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.450155] PTP clock support registered [ 0.454144] EDAC MC: Ver: 3.0.0 [ 0.457601] scmi_core: SCMI protocol bus registered [ 0.462617] FPGA manager framework [ 0.465811] Advanced Linux Sound Architecture Driver Initialized. [ 0.472369] Bluetooth: Core ver 2.22 [ 0.475701] NET: Registered PF_BLUETOOTH protocol family [ 0.480981] Bluetooth: HCI device and connection manager initialized [ 0.487298] Bluetooth: HCI socket layer initialized [ 0.492148] Bluetooth: L2CAP socket layer initialized [ 0.497182] Bluetooth: SCO socket layer initialized [ 0.502337] vgaarb: loaded [ 0.505250] clocksource: Switched to clocksource arch_sys_counter [ 0.511308] VFS: Disk quotas dquot_6.6.0 [ 0.515015] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.521961] pnp: PnP ACPI: disabled [ 0.530265] NET: Registered PF_INET protocol family [ 0.535027] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 0.542962] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear) [ 0.551110] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.558774] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.566509] TCP bind hash table entries: 8192 (order: 6, 262144 bytes, linear) [ 0.573930] TCP: Hash tables configured (established 8192 bind 8192) [ 0.580120] UDP hash table entries: 512 (order: 2, 16384 bytes, linear) [ 0.586625] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear) [ 0.593729] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.599609] RPC: Registered named UNIX socket transport module. [ 0.605277] RPC: Registered udp transport module. [ 0.609945] RPC: Registered tcp transport module. [ 0.614624] RPC: Registered tcp-with-tls transport module. [ 0.620084] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.627260] PCI: CLS 0 bytes, default 64 [ 0.631165] kvm [1]: IPA Size Limit: 40 bits [ 0.635194] kvm [1]: GICv3: no GICV resource entry [ 0.639942] kvm [1]: disabling GICv2 emulation [ 0.644371] kvm [1]: GIC system register CPU interface enabled [ 0.650191] kvm [1]: vgic interrupt IRQ9 [ 0.654088] kvm [1]: VHE mode initialized successfully [ 0.660051] Initialise system trusted keyrings [ 0.664421] workingset: timestamp_bits=42 max_order=18 bucket_order=0 [ 0.670898] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.676710] NFS: Registering the id_resolver key type [ 0.681531] Key type id_resolver registered [ 0.685658] Key type id_legacy registered [ 0.689659] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 0.696326] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 0.703831] 9p: Installing v9fs 9p2000 file system support [ 0.734526] Key type asymmetric registered [ 0.738370] Asymmetric key parser 'x509' registered [ 0.743258] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 0.750590] io scheduler mq-deadline registered [ 0.755095] io scheduler kyber registered [ 0.759113] io scheduler bfq registered [ 0.766447] EINJ: ACPI disabled. [ 0.773498] Bus freq driver module loaded [ 0.782271] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.790543] 44380000.serial: ttyLP0 at MMIO 0x44380010 (irq = 17, base_baud = 1500000) is a FSL_LPUART [ 0.799853] printk: console [ttyLP0] enabled [ 0.808289] printk: bootconsole [lpuart32] disabled [ 0.827377] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 0.835386] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 0.844862] imx93-ldb ldb-display-controller: Failed to create device link (0x180) with 4ae30000.lcd-controller [ 0.858799] loop: module loaded [ 0.863014] megasas: 07.725.01.00-rc1 [ 0.870948] tun: Universal TUN/TAP device driver, 1.6 [ 0.876567] thunder_xcv, ver 1.0 [ 0.879836] thunder_bgx, ver 1.0 [ 0.883080] nicpf, ver 1.0 [ 0.886825] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version [ 0.894055] hns3: Copyright (c) 2017 Huawei Corporation. [ 0.899390] hclge is initializing [ 0.902728] e1000: Intel(R) PRO/1000 Network Driver [ 0.907598] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 0.913354] e1000e: Intel(R) PRO/1000 Network Driver [ 0.918310] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 0.924238] igb: Intel(R) Gigabit Ethernet Network Driver [ 0.929635] igb: Copyright (c) 2007-2014 Intel Corporation. [ 0.935216] igbvf: Intel(R) Gigabit Virtual Function Network Driver [ 0.941476] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 0.947488] sky2: driver version 1.30 [ 0.951466] usbcore: registered new device driver r8152-cfgselector [ 0.957746] usbcore: registered new interface driver r8152 [ 0.963616] VFIO - User Level meta-driver version: 0.3 [ 0.970278] usbcore: registered new interface driver uas [ 0.975636] usbcore: registered new interface driver usb-storage [ 0.981731] usbcore: registered new interface driver usbserial_generic [ 0.988270] usbserial: USB Serial support registered for generic [ 0.994286] usbcore: registered new interface driver ftdi_sio [ 1.000031] usbserial: USB Serial support registered for FTDI USB Serial Device [ 1.007339] usbcore: registered new interface driver usb_serial_simple [ 1.013862] usbserial: USB Serial support registered for carelink [ 1.019959] usbserial: USB Serial support registered for flashloader [ 1.026317] usbserial: USB Serial support registered for funsoft [ 1.032327] usbserial: USB Serial support registered for google [ 1.038251] usbserial: USB Serial support registered for hp4x [ 1.043996] usbserial: USB Serial support registered for kaufmann [ 1.050089] usbserial: USB Serial support registered for libtransistor [ 1.056614] usbserial: USB Serial support registered for moto_modem [ 1.062880] usbserial: USB Serial support registered for motorola_tetra [ 1.069494] usbserial: USB Serial support registered for nokia [ 1.075326] usbserial: USB Serial support registered for novatel_gps [ 1.081686] usbserial: USB Serial support registered for siemens_mpi [ 1.088040] usbserial: USB Serial support registered for suunto [ 1.093963] usbserial: USB Serial support registered for vivopay [ 1.099966] usbserial: USB Serial support registered for zio [ 1.105629] usbcore: registered new interface driver usb_ehset_test [ 1.114691] input: 44440000.bbnsm:pwrkey as /devices/platform/soc@0/44000000.bus/44440000.bbnsm/44440000.bbnsm:pwrkey/input/input0 [ 1.126836] i2c_dev: i2c /dev entries driver [ 1.133908] imx7ulp-wdt 42490000.watchdog: imx93 wdt probe [ 1.165969] Bluetooth: HCI UART driver ver 2.3 [ 1.170432] Bluetooth: HCI UART protocol H4 registered [ 1.175564] Bluetooth: HCI UART protocol BCSP registered [ 1.180885] Bluetooth: HCI UART protocol LL registered [ 1.186018] Bluetooth: HCI UART protocol ATH3K registered [ 1.191417] Bluetooth: HCI UART protocol Three-wire (H5) registered [ 1.197782] Bluetooth: HCI UART protocol Broadcom registered [ 1.203454] Bluetooth: HCI UART protocol QCA registered [ 1.209726] sdhci: Secure Digital Host Controller Interface driver [ 1.215922] sdhci: Copyright(c) Pierre Ossman [ 1.220572] Synopsys Designware Multimedia Card Interface Driver [ 1.226885] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.233614] ledtrig-cpu: registered to indicate activity on CPUs [ 1.240850] fsl-se-fw se-fw2: failed to init reserved memory region -19 [ 1.247608] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping .... [ 1.254330] usbcore: registered new interface driver usbhid [ 1.259901] usbhid: USB HID core driver [ 1.270337] mmc0: SDHCI controller on 42850000.mmc [42850000.mmc] using ADMA [ 1.302222] hw perfevents: enabled with armv8_cortex_a55 PMU driver, 7 counters available [ 1.312041] cs_system_cfg: CoreSight Configuration manager initialised [ 1.319751] optee: probing for conduit method. [ 1.324215] optee: api uid mismatch [ 1.325699] mmc0: new HS400 Enhanced strobe MMC card at address 0001 [ 1.327700] optee: probe of firmware:optee failed with error -22 [ 1.334598] mmcblk0: mmc0:0001 eMMC 58.2 GiB [ 1.342512] NET: Registered PF_LLC protocol family [ 1.345923] mmcblk0: p1 [ 1.349519] u32 classifier [ 1.352252] mmcblk0boot0: mmc0:0001 eMMC 4.00 MiB [ 1.354567] input device check on [ 1.360666] mmcblk0boot1: mmc0:0001 eMMC 4.00 MiB [ 1.363094] Actions configured [ 1.363485] NET: Registered PF_INET6 protocol family [ 1.368956] mmcblk0rpmb: mmc0:0001 eMMC 4.00 MiB, chardev (234:0) [ 1.372113] Segment Routing with IPv6 [ 1.386309] In-situ OAM (IOAM) with IPv6 [ 1.390278] NET: Registered PF_PACKET protocol family [ 1.395349] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 1.408425] Bluetooth: RFCOMM TTY layer initialized [ 1.413310] Bluetooth: RFCOMM socket layer initialized [ 1.418455] Bluetooth: RFCOMM ver 1.11 [ 1.422203] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.427502] Bluetooth: BNEP filters: protocol multicast [ 1.432721] Bluetooth: BNEP socket layer initialized [ 1.437676] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 1.443589] Bluetooth: HIDP socket layer initialized [ 1.448783] 8021q: 802.1Q VLAN Support v1.8 [ 1.452998] lib80211: common routines for IEEE802.11 drivers [ 1.458652] lib80211_crypt: registered algorithm 'NULL' [ 1.458656] lib80211_crypt: registered algorithm 'WEP' [ 1.458659] lib80211_crypt: registered algorithm 'CCMP' [ 1.458663] lib80211_crypt: registered algorithm 'TKIP' [ 1.458693] 9pnet: Installing 9P2000 support [ 1.463084] Key type dns_resolver registered [ 1.467497] NET: Registered PF_VSOCK protocol family [ 1.486367] registered taskstats version 1 [ 1.490717] Loading compiled-in X.509 certificates [ 1.512663] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests [ 1.521013] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests [ 1.539006] imx93-ldb ldb-display-controller: Failed to create device link (0x180) with ldb-phy [ 1.550623] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 1.558672] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 1.569462] imx-dwmac 428a0000.ethernet: IRQ eth_lpi not found [ 1.575451] imx-dwmac 428a0000.ethernet: tx clock enable start [ 1.581464] imx-dwmac 428a0000.ethernet: User ID: 0x10, Synopsys ID: 0x52 [ 1.588255] imx-dwmac 428a0000.ethernet: DWMAC4/5 [ 1.593038] imx-dwmac 428a0000.ethernet: DMA HW capability register supported [ 1.600159] imx-dwmac 428a0000.ethernet: RX Checksum Offload Engine supported [ 1.607283] imx-dwmac 428a0000.ethernet: TX Checksum insertion supported [ 1.613973] imx-dwmac 428a0000.ethernet: Wake-Up On Lan supported [ 1.620110] imx-dwmac 428a0000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 1.627757] imx-dwmac 428a0000.ethernet: Enabled L3L4 Flow TC (entries=8) [ 1.634536] imx-dwmac 428a0000.ethernet: Enabled RFS Flow TC (entries=10) [ 1.641316] imx-dwmac 428a0000.ethernet: Enabling HW TC (entries=256, max_off=256) [ 1.648876] imx-dwmac 428a0000.ethernet: Using 32/32 bits DMA host/device width [ 1.657380] imx-dwmac 428a0000.ethernet: tx clock disable start [ 1.663414] imx-dwmac 428a0000.ethernet: err_drv_probe [ 1.668557] imx-dwmac 428a0000.ethernet: err_dwmac_init [ 1.677361] ci_hdrc ci_hdrc.0: EHCI Host Controller [ 1.682306] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1 [ 1.709253] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 [ 1.715211] hub 1-0:1.0: USB hub found [ 1.718981] hub 1-0:1.0: 1 port detected [ 1.726882] ci_hdrc ci_hdrc.1: EHCI Host Controller [ 1.731789] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2 [ 1.753257] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 [ 1.759191] hub 2-0:1.0: USB hub found [ 1.762965] hub 2-0:1.0: 1 port detected [ 1.770674] rtc rtc0: Power loss detected, invalid time [ 1.776048] rtc-pcf85063 0-0051: registered as rtc0 [ 1.781185] rtc rtc0: Power loss detected, invalid time [ 1.786407] rtc-pcf85063 0-0051: hctosys: unable to read the hardware clock [ 1.793553] pca953x 0-0020: supply vcc not found, using dummy regulator [ 1.800254] pca953x 0-0020: using no AI [ 1.804716] i2c i2c-0: LPI2C adapter registered [ 1.810507] pca953x 1-0022: supply vcc not found, using dummy regulator [ 1.817269] pca953x 1-0022: using AI [ 1.822077] at24 1-0050: supply vcc not found, using dummy regulator [ 1.828917] at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write [ 1.835795] i2c i2c-1: LPI2C adapter registered [ 1.841329] i2c i2c-2: LPI2C adapter registered [ 1.846907] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 1.854932] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 1.865632] imx-dwmac 428a0000.ethernet: IRQ eth_lpi not found [ 1.871579] imx-dwmac 428a0000.ethernet: tx clock enable start [ 1.877611] imx-dwmac 428a0000.ethernet: User ID: 0x10, Synopsys ID: 0x52 [ 1.884419] imx-dwmac 428a0000.ethernet: DWMAC4/5 [ 1.889206] imx-dwmac 428a0000.ethernet: DMA HW capability register supported [ 1.896327] imx-dwmac 428a0000.ethernet: RX Checksum Offload Engine supported [ 1.903449] imx-dwmac 428a0000.ethernet: TX Checksum insertion supported [ 1.910153] imx-dwmac 428a0000.ethernet: Wake-Up On Lan supported [ 1.916235] imx-dwmac 428a0000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 1.923878] imx-dwmac 428a0000.ethernet: Enabled L3L4 Flow TC (entries=8) [ 1.930655] imx-dwmac 428a0000.ethernet: Enabled RFS Flow TC (entries=10) [ 1.937446] imx-dwmac 428a0000.ethernet: Enabling HW TC (entries=256, max_off=256) [ 1.945009] imx-dwmac 428a0000.ethernet: Using 32/32 bits DMA host/device width [ 2.091986] imx-dwmac 428a0000.ethernet: tx clock disable start [ 2.092418] sdhci-esdhc-imx 42860000.mmc: Got CD GPIO [ 2.099328] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.111052] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.122102] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.130156] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.134093] mmc1: SDHCI controller on 42860000.mmc [42860000.mmc] using ADMA [ 2.139573] nxp-pca9450 1-0025: pca9451a probed. [ 2.152583] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.160637] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.171559] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 2.180575] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 2.186741] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 2.194068] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 2.197312] clk: Disabling unused clocks [ 2.202716] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db [ 2.214819] ALSA device list: [ 2.217793] No soundcards found. [ 2.221596] Waiting for root device /dev/mmcblk1p2... [ 2.287788] mmc1: host does not support reading read-only switch, assuming write-enable [ 2.298005] mmc1: new high speed SD card at address 0001 [ 2.303890] mmcblk1: mmc1:0001 00000 1.81 GiB [ 2.311020] mmcblk1: p1 p2 [ 2.315100] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.323111] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.339143] exFAT-fs (mmcblk1p2): invalid boot record signature [ 2.345082] exFAT-fs (mmcblk1p2): failed to read boot sector [ 2.350777] exFAT-fs (mmcblk1p2): failed to recognize exfat type [ 2.358002] erofs: (device mmcblk1p2): mounted with root inode @ nid 36. [ 2.364768] VFS: Mounted root (erofs filesystem) readonly on device 179:98. [ 2.371789] devtmpfs: mounted [ 2.375967] Freeing unused kernel memory: 1984K [ 2.380690] Run /sbin/init as init process [ 2.384782] with arguments: [ 2.384785] /sbin/init [ 2.384787] with environment: [ 2.384790] HOME=/ [ 2.384792] TERM=linux [ 4.633259] random: crng init done [ 12.406378] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 12.414399] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 12.424617] platform imx-lcdifv3-crtc.0: deferred probe pending 当 ip link 设置 eth0 时（我向驱动程序添加了一些非标准跟踪，以尝试调试此 DMA 问题）： # ip link set eth0 up [ 236.851517] imx-dwmac 428a0000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 236.859339] imx-dwmac 428a0000.ethernet: tx clock enable start [ 236.974901] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 236.982933] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 237.081392] imx-dwmac 428a0000.ethernet eth0: PHY [stmmac-1:00] driver [Generic PHY] (irq=POLL) [ 237.090112] Checking DMA clocks before reset... [ 237.094643] DMA_HW_CAPABILITY = 0x0 [ 237.098124] RESET START: DMA_BUS_MODE = 0x1 [ 237.102301] AFTER WRITE: DMA_BUS_MODE = 0x1 [ 238.107432] POLL RESULT: ret=-110, DMA_BUS_MODE = 0x1 [ 238.112492] imx-dwmac 428a0000.ethernet: Failed to reset the dma [ 238.118519] imx-dwmac 428a0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 238.127210] imx-dwmac 428a0000.ethernet eth0: __stmmac_open: Hw setup failed [ 238.194819] imx-dwmac 428a0000.ethernet: tx clock disable start ip: SIOCSIFFLAGS: Connection timed out 感谢您的帮助！ 顺祝商祺！ 朱利安 Re: DMA Error with imx93 and eqos in RMII 你好， 请确认PHY中的复位信号是否正确生效。 当 PHY 在短时间内没有获得时钟信号，并且时钟信号恢复后，必须对 PHY 进行 RESET，以锁存所有配置带，恢复到正常工作模式。 请分享您的完整 dmesg 日志。 顺祝商祺！ Re: DMA Error with imx93 and eqos in RMII 你好， 谢谢你提供的信息。 由于可以访问寄存器，MAC 不会完全保持 RESET 状态。 能否提供原理图连接图，以便确认 REF_CLK 的提供方式？ 另外，请在 `cat /sys/kernel/debug/clk/clk_summary` 文件中分享您的时钟摘要信息。 顺祝商祺！ Re: DMA Error with imx93 and eqos in RMII 关于ref_clk和原理图的回复，请查看另一条消息，我好像不小心按错了回复按钮。 我还尝试了以下方法： https://community.nxp.com/t5/i-MX-Processors/i-MX93-EQoS-RMII-mode-with-internal-50MHz-reference-clock/mp/1947843 ，这看起来很像同一个问题，但也没能成功解决。 感谢您的支持！ Re: DMA Error with imx93 and eqos in RMII 我不想在公共论坛上分享完整的原理图。我可以私下发送吗？ REF_CLK 通过 ENET1_TD2（imx93 的 U12 引脚）提供。在设备树中，就是这一行： MX93_PAD_ENET1_TD2__CCM_ENET_QOS_CLOCK_GENERATE_REF_CLK 0x57e 我们已经用示波器检查过，在 u-启动 下时钟是正确的，但是我们遇到了类似的 DMA 错误（细节较少）。 在 Linux 系统下，某些东西停止了时钟（我猜测是 DMA 错误触发信号，使时钟的版本随后被 Linux 内核停止，因为它未使用）。 以下是 clk_summary 的内容： enable prepare protect duty hardware connection clock count count count rate accuracy phase cycle enable consumer id --------------------------------------------------------------------------------------------------------------------------------------------- pcf85063-clkout 0 0 0 0 0 0 50000 Y deviceless no_connection_id sys_pll_pfd2 1 1 0 625000000 0 0 50000 Y deviceless no_connection_id wakeup_axi_root 2 2 0 312500000 0 0 50000 Y 42860000.mmc ahb 42850000.mmc ahb deviceless no_connection_id enet_qos 0 0 0 312500000 0 0 50000 N 428a0000.ethernet mem 428a0000.ethernet pclk 428a0000.ethernet stmmaceth deviceless no_connection_id enet1 0 0 0 312500000 0 0 50000 N 42890000.ethernet ahb 42890000.ethernet ipg deviceless no_connection_id edma2 1 1 0 312500000 0 0 50000 Y 42000000.dma-controller edma deviceless no_connection_id sys_pll_pfd2_div2 0 0 0 312500000 0 0 50000 Y deviceless no_connection_id sys_pll_pfd1 3 3 0 800000000 0 0 50000 Y deviceless no_connection_id media_axi_root 1 1 0 400000000 0 0 50000 Y 4ae30000.lcd-controller disp-axi 4ac10000.system-controller axi deviceless no_connection_id nic_media 1 1 0 400000000 0 0 50000 Y 4ac10000.system-controller nic power-domain@44462400 no_connection_id deviceless no_connection_id nic_axi_root 1 1 0 400000000 0 0 50000 Y deviceless no_connection_id ccm_cko4_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko3_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko2_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko1_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id usdhc3_root 0 0 0 200000000 0 0 50000 N deviceless no_connection_id usdhc3 0 0 0 200000000 0 0 50000 N deviceless no_connection_id usdhc2_root 0 0 0 400000000 0 0 50000 N deviceless no_connection_id usdhc2 0 0 0 400000000 0 0 50000 N 42860000.mmc per deviceless no_connection_id usdhc1_root 0 0 0 400000000 0 0 50000 N deviceless no_connection_id usdhc1 0 0 0 400000000 0 0 50000 N 42850000.mmc per deviceless no_connection_id flexspi1_root 0 0 0 200000000 0 0 50000 N deviceless no_connection_id flexspi1 0 0 0 200000000 0 0 50000 N deviceless no_connection_id sys_pll_pfd1_div2 6 6 0 400000000 0 0 50000 Y deviceless no_connection_id enet_ref_phy_root 0 0 0 50000000 0 0 50000 N 42890000.ethernet enet_out deviceless no_connection_id enet_timer1_root 0 0 0 100000000 0 0 50000 N 42890000.ethernet ptp deviceless no_connection_id enet_timer2_root 0 0 0 100000000 0 0 50000 N 428a0000.ethernet ptp_ref deviceless no_connection_id media_apb_root 1 2 0 133333334 0 0 50000 Y ldb-phy apb system-controller@4ac10000 no_connection_id 4ac10000.system-controller apb power-domain@44462400 no_connection_id deviceless no_connection_id isi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller isi deviceless no_connection_id pxp 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller pxp deviceless no_connection_id lcdif 0 0 0 133333334 0 0 50000 N 4ae30000.lcd-controller disp-apb 4ac10000.system-controller lcdif deviceless no_connection_id mipi_dsi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller dsi deviceless no_connection_id mipi_csi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller csi deviceless no_connection_id hsio_root 1 1 0 133333334 0 0 50000 Y deviceless no_connection_id usb_controller 0 0 0 133333334 0 0 50000 N 4c200000.usb no_connection_id 4c100000.usb no_connection_id deviceless no_connection_id lpspi4_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi4 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi3_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi3 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi2_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi2 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi1_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi1 0 0 0 50000000 0 0 50000 N deviceless no_connection_id swo_trace_root 0 0 0 133333334 0 0 50000 N deviceless no_connection_id bus_aon_root 1 1 0 133333334 0 0 50000 Y i2c@44350000 no_connection_id i2c@44340000 no_connection_id deviceless no_connection_id tstmr1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id pdm_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai1_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id tpm1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id lpit1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id mu1_b 0 0 0 133333334 0 0 50000 N 44230000.mailbox no_connection_id deviceless no_connection_id mu1_a 0 0 0 133333334 0 0 50000 Y deviceless no_connection_id sema1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id bus_wakeup_root 4 4 0 133333334 0 0 50000 Y 42860000.mmc ipg i2c@42530000 no_connection_id 42850000.mmc ipg deviceless no_connection_id tstmr2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai3_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai2_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id tpm3 0 0 0 133333334 0 0 50000 N deviceless no_connection_id lpit2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id gpio4 2 2 0 133333334 0 0 50000 Y 43830000.gpio gpio 43830000.gpio port deviceless no_connection_id gpio3 2 2 0 133333334 0 0 50000 Y 43820000.gpio gpio 43820000.gpio port deviceless no_connection_id gpio2 2 2 0 133333334 0 0 50000 Y 43810000.gpio gpio 43810000.gpio port deviceless no_connection_id mu2_b 0 0 0 133333334 0 0 50000 N 42440000.mailbox no_connection_id deviceless no_connection_id mu2_a 0 0 0 133333334 0 0 50000 Y deviceless no_connection_id sema2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id m33_root 4 4 0 200000000 0 0 50000 Y deviceless no_connection_id gpio1 2 2 0 200000000 0 0 50000 Y 47400000.gpio gpio 47400000.gpio port deviceless no_connection_id edma1 1 1 0 200000000 0 0 50000 Y 44000000.dma-controller edma deviceless no_connection_id cm33 1 1 0 200000000 0 0 50000 Y deviceless no_connection_id a55_mtr_bus_root 1 1 0 133333334 0 0 50000 Y deviceless no_connection_id sys_pll_pfd0 2 2 0 1000000000 0 0 50000 Y deviceless no_connection_id a55_alt_root 1 1 0 500000000 0 0 50000 Y deviceless no_connection_id a55_alt 0 0 0 500000000 0 0 50000 N deviceless no_connection_id a55_periph_root 1 1 0 333333334 0 0 50000 Y deviceless no_connection_id sys_pll_pfd0_div2 0 0 0 500000000 0 0 50000 Y deviceless no_connection_id usb_phy_root 0 0 0 50000000 0 0 50000 N usbphynop2 main_clk usbphynop1 main_clk deviceless no_connection_id enet_ref_root 0 0 0 250000000 0 0 50000 N 42890000.ethernet enet_clk_ref deviceless no_connection_id enet_root 0 0 0 50000000 0 0 50000 N 428a0000.ethernet tx deviceless no_connection_id dummy 0 0 0 0 0 0 50000 Y deviceless no_connection_id clk_ext1 0 0 0 133000000 0 0 50000 Y clock-controller@44450000 clk_ext1 deviceless no_connection_id osc_24m 6 6 3 24000000 0 0 50000 Y clock-controller@44450000 osc_24m timer@44290000 per deviceless no_connection_id pmro 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tmc 1 1 0 24000000 0 0 50000 Y 44482000.tmu no_connection_id deviceless no_connection_id sys_cnt 1 1 0 24000000 0 0 50000 Y deviceless no_connection_id hsio_trout_24m 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog3 1 1 0 24000000 0 0 50000 Y 42490000.watchdog no_connection_id deviceless no_connection_id wdog2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pal_came_scan_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2_slow_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1_slow_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id spdif_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id spdif 0 0 0 24000000 0 0 50000 N deviceless no_connection_id audio_xcvr_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id aud_xcvr 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tstmr2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tstmr1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pdm_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pdm 0 0 0 24000000 0 0 50000 N deviceless no_connection_id adc_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id adc1 0 0 0 24000000 0 0 50000 N 44530000.adc ipg deviceless no_connection_id mipi_phy_cfg_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mipi_test_byte_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id cam_pix_root 0 0 0 24000000 0 0 50000 N 4ac10000.system-controller cam deviceless no_connection_id ml_root 0 0 0 24000000 0 0 50000 N power-domain@44461800 no_connection_id deviceless no_connection_id ml_apb_root 0 0 0 24000000 0 0 50000 N power-domain@44461800 no_connection_id deviceless no_connection_id hsio_acscan_480m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id hsio_acscan_80m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id hsio_usb_test_60m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id usb_test_60m 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai3_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai3 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c3_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c3 0 0 1 24000000 0 0 50000 N i2c@42530000 no_connection_id deviceless no_connection_id lpi2c2_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c2 0 0 1 24000000 0 0 50000 N i2c@44350000 no_connection_id deviceless no_connection_id lpi2c1_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c1 0 0 1 24000000 0 0 50000 N i2c@44340000 no_connection_id deviceless no_connection_id lpuart8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart3_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart3 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart1_root 1 1 0 24000000 0 0 50000 Y deviceless no_connection_id lpuart1 1 1 0 24000000 0 0 50000 Y 44380000.serial ipg deviceless no_connection_id can2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id m33_systick_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id video_pll 0 0 0 1039500000 0 0 50000 Y deviceless no_connection_id media_disp_pix_root 0 0 0 148500000 0 0 50000 N 4ae30000.lcd-controller pix 4ac10000.system-controller disp deviceless no_connection_id media_ldb_root 0 0 0 1039500000 0 0 50000 N deviceless no_connection_id lvds 0 0 0 1039500000 0 0 50000 N deviceless no_connection_id audio_pll 0 0 0 393216000 0 0 50000 Y deviceless no_connection_id arm_pll 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id a55_sel 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id a55_core 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id osc_32k 1 1 0 32768 0 0 50000 Y clock-controller@44450000 osc_32k deviceless no_connection_id hsio_32k 2 2 0 32768 0 0 50000 Y 4c200000.usb usb_wakeup_clk 4c100000.usb usb_wakeup_clk deviceless no_connection_id # Re: DMA Error with imx93 and eqos in RMII 我终于成功运行了，使用了链接中的补丁和以下设置： &eqos { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_eqos>; phy-mode = "rmii"; phy-handle = <&ethphy1>; status = "okay"; assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>, <&clk IMX93_CLK_SYS_PLL_PFD0_DIV2>; assigned-clock-rates = <100000000>, <50000000>; enet_clk_sel = <&wakeupmix_gpr 0x2C>; clk_csr = <5>; // snps,rmii_refclk_ext; mdio { compatible = "snps,dwmac-mdio"; #address-cells = <1>; #size-cells = <0>; clock-frequency = <5000000>; ethphy1: ethernet-phy@0 { reg = <0>; eee-broken-1000tx; reset-gpios = <&pcal6524 19 GPIO_ACTIVE_LOW>; reset-assert-us = <15000>; reset-deassert-us = <100000>; smsc,disable-energy-detect; }; }; }; 能否解释一下https://community.nxp.com/t5/i-MX-Processors/i-MX93-EQoS-RMII-mode-with-internal-50MHz-reference-clock/mp/1947843中的补丁是什么？确实需要吗？为什么需要？ 另外，这些更改难道不应该提交到上游吗？因为它们看起来像是 SoC 的常规用例，没什么特别的。 Re: DMA Error with imx93 and eqos in RMII 你好， 很高兴知道现在一切正常。 该补丁修改了驱动程序 dwmac-imx/EQoS，以便在 RMII 使用外部时钟时配置 ENET_QOS。 之所以需要进行此项更改，是因为 EQoS 在 DMA RESET 期间需要恒定的时钟。 顺祝商祺！

i.mx8M plus シリアルダウンロード失敗 NXP様、 接続された回路図付きの基板をi.MX8M plus基板に接続しシリアルダウンロードを行いましたが、キャプチャ画像の通り画面だけが表示され、その後の処理は進みませんでした。 この問題を解決する方法についてお伺いしたいのですが。 よろしくお願いします。 よろしくお願いいたします。 チョン・インホ Re: i.mx8M plus Serial download failure 親愛なるイーピンワン様、 NXP EVK（8MPLUS-BB）は正常に動作しますが、私が設計した回路（添付の回路図）を搭載したボードは、スクリーンショットに示すようにしばらく動作した後、停止します。添付の回路図を確認し、適切に設計されているか確認してください。 よろしくお願いします。 よろしくお願いいたします。 チョン・インホ Re: i.mx8M plus Serial download failure 最新のUUUは、 https://github.com/nxp-imx/mfgtools/releasesからダウンロードしてください。 次に、以下のコマンドを使用してイメージをプログラムします。 unzstd -.rootfs.wic.zst uuu -b emmc_all - .rootfs.wic それでも失敗する場合は、以下のコマンドを試してください。 uuu.exe -b emmc imx-boot-imx8mpevk-sd.bin-flash_evk Re: i.mx8M plus Serial download failure 回路図はNXP EVKベースボードと同じように見える。唯一の違いは、JTAG_MODがハイレベルにプルアップされている点です。試すには、R216を取り外してください。 image-2026-07-17-11-50-04-608.png image-2026-07-17-11-48-40-000.png     Re: i.mx8M plus Serial download failure 親愛なるyipigwang様、 R216を削除した後でも、OSイメージのアップロードは依然として失敗します。 回路図をもう一度確認してください。 よろしくお願いします。 Re: i.mx8M plus Serial download failure 以下のコマンドを実行して、UUUログを再度取得して送っていただけますか？ unzstd -.rootfs.wic.zst uuu -b emmc_all - .rootfs.wic Re: i.mx8M plus Serial download failure LinuxホストPCでは、まず以下のコマンドを実行してください。 $ unzstd imx-image-core-imx8mpevk*.rootfs.wic.zst 次に、以下のUUUコマンドを実行します。 uuu -b emmc_all imx-boot-imx8mpevk-sd.bin-flash_evkimx-image-core-imx8mpevk*.rootfs.wic Re: i.mx8M plus Serial download failure キャプチャ画像ファイルを添付しました。 Re: i.mx8M plus Serial download failure 答えは以下のとおりです。 同じCPUボードがNXP製のベースボードでは正常に動作したのに、カスタムボードでは動作しなかったということでしょうか？=> はい。 同じCPUボードがカスタムベースボードでDDRのストレステストに合格することは可能でしょうか?=> はい。 シリアルダウンロード処理中にデバッグコンソールからログが出力されますか？=> いいえ Re: i.mx8M plus Serial download failure この件に関して、以下に挙げるような質問がいくつかあります。それらを明確にするのを手伝ってください。 同じCPUボードがNXP製のベースボードでは正常に動作したのに、カスタムボードでは動作しなかったということでしょうか？ 同じCPUボードがカスタムベースボードでDDRのストレステストに合格することは可能でしょうか? シリアルダウンロード処理中にデバッグコンソールからログが出力されますか？ Re: i.mx8M plus Serial download failure 提案された方法を適用しても効果がありませんでした。 別の方法を提案してください。 よろしくお願いします。 Re: i.mx8M plus Serial download failure SD2 IFはNVCC_SD2パワードメインに属しているため、R129 - 134およびR137はVSD_3V3ではなくNVCC_SD2に接続されるべきです。これらの抵抗器をすべて取り外してください。 image-2026-07-24-17-04-54-138.png   ubootはDRAMにうまく読み込めたようですが、全く動作しませんでした。J13がJ18に接続されているか、またUART2 IFがA53のデバッグコンソールとして正しく接続されているか確認してください。 image-2026-07-24-18-06-42-196.png   image-2026-07-24-18-08-04-482.png   Re: i.mx8M plus Serial download failure SD回路図で黄色でマークされた抵抗器（R129～134およびR137）をすべて取り外しても、やはり動作しません。 さらに、デバッグコンソールがコネクテッドである間は出力が一切表示されません。 この部分をもう一度確認してください。 Re: i.mx8M plus Serial download failure u-bootはuuuでDRAMにダウンロードできるので、USB接続は問題ないはずです。他のハードウェアはU-Bootの実行に影響を与えません。u-bootのログは、根本原因の分析に役立ちます。PCホストが下記のように4つのCOMポートを認識できるか確認し、3つ目のCOMポートがA53のデバッグコンソールとして使われているか確認してください。そうすればUブートログが正しく印刷されるようにしてください。 image-2026-07-29-14-15-40-909.png   Re: i.mx8M plus Serial download failure U-bootのログファイルを添付しました。 Re: i.mx8M plus Serial download failure 不明な画像フォーマット！ fastbootを実行... USB初期化失敗: -22 u-boot=> USBに問題があるようです。マザーボードにType-Cポートがあるかどうか確認してください。もしなければ、無効にしてください。このパッチを参照してください 1. dts @@ -444,14 +445,6 @@ ポルト #address-cells = <1>; #size-cells = <0>; -                ポート@0 { reg = <0>; -                    typec1_dr_sw: エンドポイント { -                        remote-endpoint = <&usb1_drd_sw>; -                    } ;                }; 2. xxx_evk.c struct tcpc_port *port_ptr; debug("%s %d\n", _ func _, dev_seq(dev)); - +#ifdef CONFIG_USB_TCPC if (dev_seq(dev) == 0) port_ptr = &port; それ以外 USB_INIT_HOSTを返す。 - +#else + USB_INIT_DEVICE を返します。 +#endif 3. defconfig -CONFIG_USB_TCPC=y

i.mx8M plus Serial download failure Dear NXP, I connected the board with the attached circuit diagram to the i.MX8M plus board and performed a Serial Download, but as shown in the captured image, only the screen appears and the process does not proceed further. I would like to inquire about how to resolve this. Thank you. Best Regards, Inho Jeon Re: i.mx8M plus Serial download failure Dear  yipingwang, The NXP EVK (8MPLUS-BB) works fine, but the board with the circuit I designed (the attached circuit diagram) operates for a while as shown in the screenshot and then stops. Please review the attached circuit diagram to ensure it is properly designed. Thank you. Best Regards, Inho Jeon Re: i.mx8M plus Serial download failure Please download the latest UUU from https://github.com/nxp-imx/mfgtools/releases Then use the following command to program images. unzstd    - .rootfs.wic.zst uuu -b emmc_all   - .rootfs.wic If it still fails, please try the following command. uuu.exe -b emmc imx-boot-imx8mpevk-sd.bin-flash_evk Re: i.mx8M plus Serial download failure The schematic looks same as the NXP EVK base board. The only difference is JTAG_MOD was pulled high. Please remove R216 to have a try. image-2026-07-17-11-50-04-608.png image-2026-07-17-11-48-40-000.png     Re: i.mx8M plus Serial download failure Dear yipigwang,  The OS image upload still fails even after removing R216. Please review the circuit diagram again. Thank you. Re: i.mx8M plus Serial download failure Would you please execute the following commands and capture the UUU log to me again? unzstd    - .rootfs.wic.zst uuu -b emmc_all   - .rootfs.wic Re: i.mx8M plus Serial download failure Attached a capture image file. Re: i.mx8M plus Serial download failure On your Linux host PC, please execute the following commands first. $ unzstd imx-image-core- imx8mpevk*.rootfs.wic.zst Then execute the following UUU command. uuu -b emmc_all imx-boot-imx8mpevk-sd.bin-flash_evk imx-image-core- imx8mpevk*.rootfs.wic Re: i.mx8M plus Serial download failure I have several questions on this issue as shown below. Please help to clarify them. Did the same CPU board work well on the NXP base board, but failed on the custom one?  Could the same CPU board pass DDR stress test with the custom base board? Is there any log printed from the debug console during the Serial download process? Re: i.mx8M plus Serial download failure Here is the answer: Did the same CPU board work well on the NXP base board, but failed on the custom one? => YES.  Could the same CPU board pass DDR stress test with the custom base board? => YES. Is there any log printed from the debug console during the Serial download process? => No Re: i.mx8M plus Serial download failure It did not work even after applying the method you suggested. Please suggest another method. Thank you. Re: i.mx8M plus Serial download failure Since SD2 IF is under NVCC_SD2 power domain, R129 - 134 and R137 should be connected to NVCC_SD2 instead of VSD_3V3. Please just remove all these resistors. image-2026-07-24-17-04-54-138.png   It seems that the uboot could be loaded to DRAM successfully, but it did not run at all. Please check how J13 was connected to J18 and check if UART2 IF had been connected well as debug console for A53. image-2026-07-24-18-06-42-196.png   image-2026-07-24-18-08-04-482.png   Re: i.mx8M plus Serial download failure Even after removing all the resistors marked in yellow (R129~134 and R137) on the SD circuit diagram, it still does not work. Additionally, no output is displayed at all when the debug console is connected. Please review this part again. Re: i.mx8M plus Serial download failure Since the u-boot could be downloaded into DRAM by uuu, the USB connection should be fine. No other h/w would affect the u-boot to run. u-boot log is helpful to analyze the root cause. Please check if PC host could identify 4 COM ports as shown below and make sure the 3rd COM port had been used as debug console for A53 so that u-boot log could be printed correctly.  image-2026-07-29-14-15-40-909.png   Re: i.mx8M plus Serial download failure I Attached a U-boot log file.  Re: i.mx8M plus Serial download failure Unknown image format! Run fastboot ... USB init failed: -22 u-boot=>  Seem usb has issue, please check if there is typec in your board, if haven't, please disable it. You can refer to this patch 1. dts @@ -444,14 +445,6 @@              ports {                  #address-cells = <1>;                  #size-cells = <0>; -                port@0 {                    reg = <0>; -                    typec1_dr_sw: endpoint { -                        remote-endpoint = <&usb1_drd_sw>; -                    } ;                }; 2. xxx_evk.c     struct tcpc_port *port_ptr;        debug("%s %d\n", _func_, dev_seq(dev)); - +#ifdef CONFIG_USB_TCPC      if (dev_seq(dev) == 0)          port_ptr = &port;      else          return USB_INIT_HOST; - +#else +    return USB_INIT_DEVICE; +#endif 3. defconfig -CONFIG_USB_TCPC=y

Is .exe the usual package format? Hi, I'm the developer of CAN/UART bootloaders for some microcontroller families. I want to figure out whether it makes sense to extend the range of supported microcontrollers and to add support for some NXP devices. So far, I never worked with NXP microcontrollers. I was a little bit surprised that when I search for the term "bootloader" here in the forums and on the NXP website, I find a lot of windows executables to be downloaded. When I add the term "bootloader" to the search bar on the main web site, the second hit is even a direct link to a crypto currency web side. When I want to have a look at the "Unified bootloader Demo", do I really have to have a Windows PC and have to download and execute an .exe file? best regards Torsten

S32K344 SVDファイルのバグ S32DS から S32K344 svd ファイル (S32K344.svd) を取得して使用しようとしていますが、ファイルの構成方法に何百ものバグがあるようです。 たとえば、MUXSEL レジスタ (リファレンス・マニュアルのセクション 62.8.10 から) は、SVD ファイルで次のように定義されています。 lu_in LU_IN0 から LU_IN11 0x1 しかし、すべての列挙値 (LU_IN0 から LU_IN11) の名前フィールドはすべて "lu_in" であるため、列挙として保存するとエラーが発生します (シンボル "lu_in" の複数の定義)。さらに、列挙ではスペースが正しくカバーされません。LU_IN は 1 ～ 12 (0x1 ～ 0xC) の値を持つ必要がありますが、列挙は 0x9 までしか上がりません。 別の例として、レジスタ MDACFG0 フィールド NMDAR には、破壊される以外に本質的に何の役にも立たない列挙があります。 番号 レジスタの数 0x1 lu_in の例と同様に、列挙型はすべて、列挙型の名前として「NUMBER」をリストします。 レジスタ RRCR0 には、フィールド RR_INITMOD がありますが、これは列挙型 MOD_1_63 と本質的に同じ問題があり、これも可能な列挙値の一部のみをカバーします。 これを修正するために連絡できる人はいますか?これらの問題は、S32K3XX チップを使用する上で非常に大きな障害となります。 Re: S32K344 SVD File Bugs こんにちは@kscz 、 残念ながら、現時点では、S32K3 に対する公式の NXP Rust サポートはありません。 SVD を svd2rust に渡す前に、重複を削除/名前変更する小さなスクリプトを作成できます。 よろしくお願いいたします。 パベル Re: S32K344 SVD File Bugs 少し混乱しています。このチップで Rust を使いたいというのは正しいのですが、ここで説明した問題は、CMSIS であっても Rust であっても、この SVD ファイルを使用する方法に根本的な影響を与えます。 MUXSEL や RR_INITMOD などの列挙が、可能な値の一部のみをカバーしているのはバグのようです。どのフィールドの列挙でも名前フィールドが同じであるのはバグのようです。 私は NXP に Rust の明示的なサポートを求めているのではなく、SVD ファイルの修正を求めているのです。 Re: S32K344 SVD File Bugs こんにちは@kscz 、 あなたの言うことは分かります。あなたの質問をソフトウェア チームに報告しました。 ご報告ありがとうございます。 よろしくお願いいたします。 パベル Re: S32K344 SVD File Bugs アップデートを待つのにどのくらい待てばよいか教えてください。 Re: S32K344 SVD File Bugs こんにちは@kscz 、 開発チームからまだアップデートを受け取っていません。優先度を上げました。 svd ファイルは RTD の一部なので、次の RTD リリースで修正されることを期待します。 よろしくお願いいたします。 パベル Re: S32K344 SVD File Bugs S32K388 SVDファイルには、他にもたくさんのバグがあります。それらについても文書化する必要があるでしょうか？S32K344のように、この機種もアップデートする予定はありますか？ Re: S32K344 SVD File Bugs こんにちは@kscz 、 問題のご報告ありがとうございます。ソフトウェアチームに転送し、優先度を上げました。 よろしくお願いいたします。 パベル

i.mx8M plus 序列号下载失败 尊敬的恩智浦： 我按照附图所示的电路图将电路板连接到 i.MX8M plus 板，并执行了串行下载，但如捕获的图像所示，屏幕只显示出来，下载过程没有继续进行。 我想咨询一下如何解决这个问题。 谢谢！ 顺祝商祺！ 全仁浩 Re: i.mx8M plus Serial download failure 亲爱的王一平： NXP EVK (8MPLUS-BB) 工作正常，但我设计的电路板（附图）运行一段时间后，如屏幕截图所示，就会停止工作。请核对附件中的电路图，确保其设计正确。 谢谢！ 顺祝商祺！ 全仁浩 Re: i.mx8M plus Serial download failure 请从https://github.com/nxp-imx/mfgtools/releases下载最新版本的 UUU 然后使用以下命令对图像进行编程。 unzstd - .rootfs.wic.zst uuu -b emmc_all - .rootfs.wic 如果仍然失败，请尝试以下命令。 uuu.exe -b emmc imx-boot-imx8mpevk-sd.bin-flash_evk Re: i.mx8M plus Serial download failure 原理图看起来和NXP EVK底板一样。唯一的区别是 JTAG_MOD 被拉高了。请移除 R216 再试一次。 image-2026-07-17-11-50-04-608.png image-2026-07-17-11-48-40-000.png     Re: i.mx8M plus Serial download failure 亲爱的yipigwang， 即使卸载了 R216，操作系统镜像上传仍然失败。 请再次查看电路图。 谢谢！ Re: i.mx8M plus Serial download failure 请先在您的 Linux 主机 PC 上执行以下命令。 $ unzstd imx-image-core-imx8mpevk*.rootfs.wic.zst 然后执行以下 UUU 命令。 uuu -b emmc_all imx-boot-imx8mpevk-sd.bin-flash_evkimx-image-core-imx8mpevk*.rootfs.wic Re: i.mx8M plus Serial download failure 已附上捕获图像文件。 Re: i.mx8M plus Serial download failure 请您执行以下命令，并再次将 UUU 日志捕获给我？ unzstd - .rootfs.wic.zst uuu -b emmc_all - .rootfs.wic Re: i.mx8M plus Serial download failure 即使按照您建议的方法操作，也仍然无效。 请提出其他方法。 谢谢！ Re: i.mx8M plus Serial download failure 关于这个问题，我有几个问题，如下所示。请帮忙解释一下。 同一块CPU板在NXP主板上运行良好，但在定制主板上却无法运行吗？ 同样的CPU主板搭配定制底板能否通过DDR压力测试？ 在串口下载过程中，调试控制台是否有任何日志输出？ Re: i.mx8M plus Serial download failure 答案如下： 同一块CPU板在NXP基板上运行良好，但在定制板上却无法运行吗？=> 是的。 同样的CPU主板搭配定制底板能否通过DDR压力测试？=> 是的。 在串口下载过程中，调试控制台是否有任何日志输出？=> 否 Re: i.mx8M plus Serial download failure 由于 SD2 IF 处于 NVCC_SD2 电源域，因此 R129 - 134 和 R137 应该连接到 NVCC_SD2 而不是 VSD_3V3。请把这些电阻器都拆掉。 image-2026-07-24-17-04-54-138.png   uboot 似乎已成功加载到 动态随机存取存储器(DRAM) 中，但根本没有运行。请检查 J13 与 J18 的连接方式，并检查 UART2 IF 是否已正确连接，以及 A53 的调试控制台是否已连接。 image-2026-07-24-18-06-42-196.png   image-2026-07-24-18-08-04-482.png   Re: i.mx8M plus Serial download failure 即使移除 SD 电路图中标有黄色的所有电阻器（R129~134 和 R137），它仍然无法工作。 此外，连接调试控制台后，没有任何输出显示。 请再检查一遍这部分内容。 Re: i.mx8M plus Serial download failure 由于 uuu 可以将 u-启动 下载到动态随机存取存储器\(DRAM\)中，因此 USB 连接应该没有问题。其他硬件不会影响 u-启动 的运行。u-boot 日志有助于分析根本原因。请检查PC主机是否能识别出如下所示的4个COM端口，并确保第3个COM端口已用作A53的调试控制台，以便能够正确打印u-启动日志。 image-2026-07-29-14-15-40-909.png   Re: i.mx8M plus Serial download failure 我附上了U-boot日志文件。 Re: i.mx8M plus Serial download failure 未知图像格式！ 运行 fastboot... USB 初始化失败：-22 u-启动=> 似乎USB接口有问题，请检查您的主板上是否有Type-C接口，如果没有，请将其禁用。您可以参考这个补丁。 1. dts @@ -444,14 +445,6 @@ 港口 { #address-cells = <1>; #size-cells = <0>; - port@0 { reg = <0>; - typec1_dr_sw: endpoint { - remote-endpoint = <&usb1_drd_sw>; - } ； }; 2. xxx_evk.c struct tcpc_port *port_ptr; debug("%s %d\n", _ func _, dev_seq(dev)); - +#ifdef CONFIG_USB_TCPC 如果 (dev_seq(dev) == 0) port_ptr = &port; 别的 返回 USB_INIT_HOST； - +#否则 + 返回 USB_INIT_DEVICE; +#endif 3. defconfig -CONFIG_USB_TCPC=y

.exe 是常用的代码包，软件包格式吗？ 您好， 我是某些微控制器系列的 CAN/UART 引导加载程序的开发者。我想弄清楚扩展支持的微控制器范围并增加对一些 NXP 设备的支持是否有意义。到目前为止，我还没有接触过恩智浦（NXP）的微控制器。 令我有点惊讶的是，当我在论坛和 NXP 网站上搜索“引导加载程序”一词时，我发现有很多 Windows 可执行文件可供下载。当我在主网站的搜索栏中输入“bootloader”一词时，第二个搜索结果竟然是指向加密货币网站的直接链接。 如果我想查看“统一引导加载程序演示”，真的必须拥有一台 Windows 电脑，并且下载并运行一个 .exe 文件吗？文件？ 顺祝商祺！ 托斯滕

RMIIにおけるimx93とeqosでのDMAエラー LAN8742A PHYをeqosに接続し、RMIIモードでイーサネットを動作させようとしています。 imx93-11x11-frdm.dts をベースとして、以下の変更を加えました。 &iomuxc { pinctrl_eqos: eqosgrp { fsl,pins = < MX93_PAD_ENET1_MDC__ENET_QOS_MDC 0x57e /* OK */ MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO 0x57e /* OK */ MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0 0x57e /* OK */ MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1 0x57e /* OK */ /* MX93_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2 0x57e MX93_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3 0x57e */ MX93_PAD_ENET1_RXC__ENET_QOS_RX_ER 0x51e /* OK */ /* MX93_PAD_ENET1_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK 0x51e */ MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x57e /* OK */ MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0 0x57e /* OK */ MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1 0x57e /* OK */ /* refclock for Eth phy */ MX93_PAD_ENET1_TD2__CCM_ENET_QOS_CLOCK_GENERATE_REF_CLK 0x57e /* OK */ /* MX93_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2 0x57e MX93_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3 0x57e */ /* MX93_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x5fe */ MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x0000051e /* OK */ /* MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x57e */ >; }; &eqos { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_eqos>; phy-mode = "rmii"; phy-handle = <&ethphy1>; status = "okay"; /delete-property/ assigned-clocks; /delete-property/ assigned-clock-rates; assigned-clocks = <&clk IMX93_CLK_ENET_TIMER2>, <&clk IMX93_CLK_ENET>; assigned-clock-rates = <100000000>, <50000000>; mdio { compatible = "snps,dwmac-mdio"; #address-cells = <1>; #size-cells = <0>; clock-frequency = <5000000>; ethphy1: ethernet-phy@0 { reg = <0>; eee-broken-1000tx; post-power-on-delay-ms = <100>; reset-gpios = <&pcal6524 19 GPIO_ACTIVE_LOW>; reset-assert-us = <15000>; reset-deassert-us = <100000>; }; }; }; ubootでの結果は次のとおりです。 u-boot=> bootp EQOS_DMA_MODE_SWR stuckFAILED: -110 u-boot=> Linuxの結果は次の通りです: [ 11.484536] imx-dwmac 428a0000.ethernet: Failed to reset the dma [ 11.490536] imx-dwmac 428a0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 11.499228] imx-dwmac 428a0000.ethernet eth0: __stmmac_open: Hw setup failed 何が間違っているのか、設定を間違えたのか、あるいはなぜDMAが正しく初期化されないのか、私には理解できません。明らかに何か見落としているようです(DMAエラーはチップ内部のエラーのように見えるので、もしピンマックスにエラーがあったとしても、同じ問題は起きないと思いますし、ピンマックスも再確認しました)。 確認した事項： - クロックはPHYに正しく送信されています - MDIO上のPHYとの通信は正常に動作します これに関するヒントがあれば大変ありがたいです。 よろしくお願いいたします。 ジュリアン Re: DMA Error with imx93 and eqos in RMII u-bootではリセットが正しく設定されています。PHYはライブで確認でき(LEDは動作しています)、通信もできますが、それでもDMAエラーが出ます。 u-bootのリセットピンを使ってPHYを手動で無効化してから再度有効化してみましたが、何も変わりませんでした。 以下はdmesgからの完全なログです。 [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x412fd050] [ 0.000000] Linux version 6.6.36 ([email protected]@UC155-BE2) (aarch64-sprinte450sp-linux-gnu-gcc.br_real (Buildroot 2026.05-2-gf0cfb0f3cf-dirty) 14.3.0, GNU ld (GNU Binutils) 2.45.1) #4 SMP PREEMPT Thu Jul 23 17:04:50 CEST 2026 [ 0.000000] KASLR disabled due to lack of seed [ 0.000000] Machine model: Sprinte 450SP board [ 0.000000] efi: UEFI not found. [ 0.000000] Reserved memory: created CMA memory pool at 0x00000000b0000000, size 256 MiB [ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool [ 0.000000] OF: reserved mem: 0x00000000b0000000..0x00000000bfffffff (262144 KiB) map reusable linux,cma [ 0.000000] earlycon: lpuart32 at MMIO32 0x0000000044380000 (options '') [ 0.000000] printk: bootconsole [lpuart32] enabled [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] NUMA: NODE_DATA [mem 0xafdcf6c0-0xafdd1fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] DMA32 empty [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.1 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] psci: SMC Calling Convention v1.4 [ 0.000000] percpu: Embedded 22 pages/cpu s50600 r8192 d31320 u90112 [ 0.000000] pcpu-alloc: s50600 r8192 d31320 u90112 alloc=22*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: detected: GIC system register CPU interface [ 0.000000] CPU features: detected: Virtualization Host Extensions [ 0.000000] CPU features: detected: Qualcomm erratum 1009, or ARM erratum 1286807, 2441009 [ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: console=ttyLP0,115200 earlycon root=/dev/mmcblk1p2 rootwait rw [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 0.000000] Fallback order for Node 0: 0 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 258048 [ 0.000000] Policy zone: DMA [ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off [ 0.000000] software IO TLB: area num 2. [ 0.000000] software IO TLB: mapped [mem 0x00000000aac00000-0x00000000aec00000] (64MB) [ 0.000000] Memory: 666980K/1048576K available (20608K kernel code, 1638K rwdata, 7744K rodata, 1984K init, 643K bss, 119452K reserved, 262144K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] Tracing variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: 960 SPIs implemented [ 0.000000] GICv3: 0 Extended SPIs implemented [ 0.000000] Root IRQ handler: gic_handle_irq [ 0.000000] GICv3: GICv3 features: 16 PPIs [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000048040000 [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns [ 0.000000] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns [ 0.008305] Console: colour dummy device 80x25 [ 0.012529] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=96000) [ 0.022711] pid_max: default: 32768 minimum: 301 [ 0.027347] LSM: initializing lsm=capability,integrity [ 0.032485] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.039785] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.048237] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 0.054656] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1. [ 0.061512] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1. [ 0.069127] rcu: Hierarchical SRCU implementation. [ 0.073752] rcu: Max phase no-delay instances is 1000. [ 0.079653] EFI services will not be available. [ 0.084098] smp: Bringing up secondary CPUs ... [ 0.088812] Detected VIPT I-cache on CPU1 [ 0.088870] GICv3: CPU1: found redistributor 100 region 0:0x0000000048060000 [ 0.088904] CPU1: Booted secondary processor 0x0000000100 [0x412fd050] [ 0.089007] smp: Brought up 1 node, 2 CPUs [ 0.110357] SMP: Total of 2 processors activated. [ 0.115028] CPU features: detected: 32-bit EL0 Support [ 0.120154] CPU features: detected: 32-bit EL1 Support [ 0.125257] CPU features: detected: Data cache clean to the PoU not required for I/D coherence [ 0.133840] CPU features: detected: Common not Private translations [ 0.140073] CPU features: detected: CRC32 instructions [ 0.145196] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.150906] CPU features: detected: LSE atomic instructions [ 0.156453] CPU features: detected: Privileged Access Never [ 0.161998] CPU features: detected: RAS Extension Support [ 0.167374] CPU features: detected: Speculative Store Bypassing Safe (SSBS) [ 0.174355] CPU: All CPU(s) started at EL2 [ 0.178380] alternatives: applying system-wide alternatives [ 0.187922] devtmpfs: initialized [ 0.194925] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.204430] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 0.216607] pinctrl core: initialized pinctrl subsystem [ 0.223019] DMI not present or invalid. [ 0.227066] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.233367] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations [ 0.240250] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 0.247941] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 0.255804] audit: initializing netlink subsys (disabled) [ 0.261291] audit: type=2000 audit(0.172:1): state=initialized audit_enabled=0 res=1 [ 0.261671] thermal_sys: Registered thermal governor 'step_wise' [ 0.268851] thermal_sys: Registered thermal governor 'power_allocator' [ 0.274855] cpuidle: using governor menu [ 0.285411] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.292025] ASID allocator initialised with 65536 entries [ 0.297950] Serial: AMBA PL011 UART driver [ 0.301832] imx mu driver is registered. [ 0.305685] imx rpmsg driver is registered. [ 0.314130] imx93-pinctrl 443c0000.pinctrl: initialized IMX pinctrl driver [ 0.326962] Modules: 24576 pages in range for non-PLT usage [ 0.326973] Modules: 516096 pages in range for PLT usage [ 0.333009] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 0.344824] HugeTLB: 0 KiB vmemmap can be freed for a 1.00 GiB page [ 0.351063] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages [ 0.357821] HugeTLB: 0 KiB vmemmap can be freed for a 32.0 MiB page [ 0.364062] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 0.370821] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page [ 0.377062] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages [ 0.383821] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page [ 0.391518] ACPI: Interpreter disabled. [ 0.395792] iommu: Default domain type: Translated [ 0.400360] iommu: DMA domain TLB invalidation policy: strict mode [ 0.406743] SCSI subsystem initialized [ 0.410355] libata version 3.00 loaded. [ 0.410523] usbcore: registered new interface driver usbfs [ 0.415761] usbcore: registered new interface driver hub [ 0.421054] usbcore: registered new device driver usb [ 0.426646] mc: Linux media interface: v0.10 [ 0.430689] videodev: Linux video capture interface: v2.00 [ 0.436154] pps_core: LinuxPPS API ver. 1 registered [ 0.441049] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.450155] PTP clock support registered [ 0.454144] EDAC MC: Ver: 3.0.0 [ 0.457601] scmi_core: SCMI protocol bus registered [ 0.462617] FPGA manager framework [ 0.465811] Advanced Linux Sound Architecture Driver Initialized. [ 0.472369] Bluetooth: Core ver 2.22 [ 0.475701] NET: Registered PF_BLUETOOTH protocol family [ 0.480981] Bluetooth: HCI device and connection manager initialized [ 0.487298] Bluetooth: HCI socket layer initialized [ 0.492148] Bluetooth: L2CAP socket layer initialized [ 0.497182] Bluetooth: SCO socket layer initialized [ 0.502337] vgaarb: loaded [ 0.505250] clocksource: Switched to clocksource arch_sys_counter [ 0.511308] VFS: Disk quotas dquot_6.6.0 [ 0.515015] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.521961] pnp: PnP ACPI: disabled [ 0.530265] NET: Registered PF_INET protocol family [ 0.535027] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 0.542962] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear) [ 0.551110] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.558774] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear) [ 0.566509] TCP bind hash table entries: 8192 (order: 6, 262144 bytes, linear) [ 0.573930] TCP: Hash tables configured (established 8192 bind 8192) [ 0.580120] UDP hash table entries: 512 (order: 2, 16384 bytes, linear) [ 0.586625] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear) [ 0.593729] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.599609] RPC: Registered named UNIX socket transport module. [ 0.605277] RPC: Registered udp transport module. [ 0.609945] RPC: Registered tcp transport module. [ 0.614624] RPC: Registered tcp-with-tls transport module. [ 0.620084] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.627260] PCI: CLS 0 bytes, default 64 [ 0.631165] kvm [1]: IPA Size Limit: 40 bits [ 0.635194] kvm [1]: GICv3: no GICV resource entry [ 0.639942] kvm [1]: disabling GICv2 emulation [ 0.644371] kvm [1]: GIC system register CPU interface enabled [ 0.650191] kvm [1]: vgic interrupt IRQ9 [ 0.654088] kvm [1]: VHE mode initialized successfully [ 0.660051] Initialise system trusted keyrings [ 0.664421] workingset: timestamp_bits=42 max_order=18 bucket_order=0 [ 0.670898] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.676710] NFS: Registering the id_resolver key type [ 0.681531] Key type id_resolver registered [ 0.685658] Key type id_legacy registered [ 0.689659] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 0.696326] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 0.703831] 9p: Installing v9fs 9p2000 file system support [ 0.734526] Key type asymmetric registered [ 0.738370] Asymmetric key parser 'x509' registered [ 0.743258] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 0.750590] io scheduler mq-deadline registered [ 0.755095] io scheduler kyber registered [ 0.759113] io scheduler bfq registered [ 0.766447] EINJ: ACPI disabled. [ 0.773498] Bus freq driver module loaded [ 0.782271] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.790543] 44380000.serial: ttyLP0 at MMIO 0x44380010 (irq = 17, base_baud = 1500000) is a FSL_LPUART [ 0.799853] printk: console [ttyLP0] enabled [ 0.808289] printk: bootconsole [lpuart32] disabled [ 0.827377] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 0.835386] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 0.844862] imx93-ldb ldb-display-controller: Failed to create device link (0x180) with 4ae30000.lcd-controller [ 0.858799] loop: module loaded [ 0.863014] megasas: 07.725.01.00-rc1 [ 0.870948] tun: Universal TUN/TAP device driver, 1.6 [ 0.876567] thunder_xcv, ver 1.0 [ 0.879836] thunder_bgx, ver 1.0 [ 0.883080] nicpf, ver 1.0 [ 0.886825] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version [ 0.894055] hns3: Copyright (c) 2017 Huawei Corporation. [ 0.899390] hclge is initializing [ 0.902728] e1000: Intel(R) PRO/1000 Network Driver [ 0.907598] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 0.913354] e1000e: Intel(R) PRO/1000 Network Driver [ 0.918310] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 0.924238] igb: Intel(R) Gigabit Ethernet Network Driver [ 0.929635] igb: Copyright (c) 2007-2014 Intel Corporation. [ 0.935216] igbvf: Intel(R) Gigabit Virtual Function Network Driver [ 0.941476] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 0.947488] sky2: driver version 1.30 [ 0.951466] usbcore: registered new device driver r8152-cfgselector [ 0.957746] usbcore: registered new interface driver r8152 [ 0.963616] VFIO - User Level meta-driver version: 0.3 [ 0.970278] usbcore: registered new interface driver uas [ 0.975636] usbcore: registered new interface driver usb-storage [ 0.981731] usbcore: registered new interface driver usbserial_generic [ 0.988270] usbserial: USB Serial support registered for generic [ 0.994286] usbcore: registered new interface driver ftdi_sio [ 1.000031] usbserial: USB Serial support registered for FTDI USB Serial Device [ 1.007339] usbcore: registered new interface driver usb_serial_simple [ 1.013862] usbserial: USB Serial support registered for carelink [ 1.019959] usbserial: USB Serial support registered for flashloader [ 1.026317] usbserial: USB Serial support registered for funsoft [ 1.032327] usbserial: USB Serial support registered for google [ 1.038251] usbserial: USB Serial support registered for hp4x [ 1.043996] usbserial: USB Serial support registered for kaufmann [ 1.050089] usbserial: USB Serial support registered for libtransistor [ 1.056614] usbserial: USB Serial support registered for moto_modem [ 1.062880] usbserial: USB Serial support registered for motorola_tetra [ 1.069494] usbserial: USB Serial support registered for nokia [ 1.075326] usbserial: USB Serial support registered for novatel_gps [ 1.081686] usbserial: USB Serial support registered for siemens_mpi [ 1.088040] usbserial: USB Serial support registered for suunto [ 1.093963] usbserial: USB Serial support registered for vivopay [ 1.099966] usbserial: USB Serial support registered for zio [ 1.105629] usbcore: registered new interface driver usb_ehset_test [ 1.114691] input: 44440000.bbnsm:pwrkey as /devices/platform/soc@0/44000000.bus/44440000.bbnsm/44440000.bbnsm:pwrkey/input/input0 [ 1.126836] i2c_dev: i2c /dev entries driver [ 1.133908] imx7ulp-wdt 42490000.watchdog: imx93 wdt probe [ 1.165969] Bluetooth: HCI UART driver ver 2.3 [ 1.170432] Bluetooth: HCI UART protocol H4 registered [ 1.175564] Bluetooth: HCI UART protocol BCSP registered [ 1.180885] Bluetooth: HCI UART protocol LL registered [ 1.186018] Bluetooth: HCI UART protocol ATH3K registered [ 1.191417] Bluetooth: HCI UART protocol Three-wire (H5) registered [ 1.197782] Bluetooth: HCI UART protocol Broadcom registered [ 1.203454] Bluetooth: HCI UART protocol QCA registered [ 1.209726] sdhci: Secure Digital Host Controller Interface driver [ 1.215922] sdhci: Copyright(c) Pierre Ossman [ 1.220572] Synopsys Designware Multimedia Card Interface Driver [ 1.226885] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.233614] ledtrig-cpu: registered to indicate activity on CPUs [ 1.240850] fsl-se-fw se-fw2: failed to init reserved memory region -19 [ 1.247608] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping .... [ 1.254330] usbcore: registered new interface driver usbhid [ 1.259901] usbhid: USB HID core driver [ 1.270337] mmc0: SDHCI controller on 42850000.mmc [42850000.mmc] using ADMA [ 1.302222] hw perfevents: enabled with armv8_cortex_a55 PMU driver, 7 counters available [ 1.312041] cs_system_cfg: CoreSight Configuration manager initialised [ 1.319751] optee: probing for conduit method. [ 1.324215] optee: api uid mismatch [ 1.325699] mmc0: new HS400 Enhanced strobe MMC card at address 0001 [ 1.327700] optee: probe of firmware:optee failed with error -22 [ 1.334598] mmcblk0: mmc0:0001 eMMC 58.2 GiB [ 1.342512] NET: Registered PF_LLC protocol family [ 1.345923] mmcblk0: p1 [ 1.349519] u32 classifier [ 1.352252] mmcblk0boot0: mmc0:0001 eMMC 4.00 MiB [ 1.354567] input device check on [ 1.360666] mmcblk0boot1: mmc0:0001 eMMC 4.00 MiB [ 1.363094] Actions configured [ 1.363485] NET: Registered PF_INET6 protocol family [ 1.368956] mmcblk0rpmb: mmc0:0001 eMMC 4.00 MiB, chardev (234:0) [ 1.372113] Segment Routing with IPv6 [ 1.386309] In-situ OAM (IOAM) with IPv6 [ 1.390278] NET: Registered PF_PACKET protocol family [ 1.395349] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 1.408425] Bluetooth: RFCOMM TTY layer initialized [ 1.413310] Bluetooth: RFCOMM socket layer initialized [ 1.418455] Bluetooth: RFCOMM ver 1.11 [ 1.422203] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.427502] Bluetooth: BNEP filters: protocol multicast [ 1.432721] Bluetooth: BNEP socket layer initialized [ 1.437676] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 1.443589] Bluetooth: HIDP socket layer initialized [ 1.448783] 8021q: 802.1Q VLAN Support v1.8 [ 1.452998] lib80211: common routines for IEEE802.11 drivers [ 1.458652] lib80211_crypt: registered algorithm 'NULL' [ 1.458656] lib80211_crypt: registered algorithm 'WEP' [ 1.458659] lib80211_crypt: registered algorithm 'CCMP' [ 1.458663] lib80211_crypt: registered algorithm 'TKIP' [ 1.458693] 9pnet: Installing 9P2000 support [ 1.463084] Key type dns_resolver registered [ 1.467497] NET: Registered PF_VSOCK protocol family [ 1.486367] registered taskstats version 1 [ 1.490717] Loading compiled-in X.509 certificates [ 1.512663] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests [ 1.521013] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests [ 1.539006] imx93-ldb ldb-display-controller: Failed to create device link (0x180) with ldb-phy [ 1.550623] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 1.558672] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 1.569462] imx-dwmac 428a0000.ethernet: IRQ eth_lpi not found [ 1.575451] imx-dwmac 428a0000.ethernet: tx clock enable start [ 1.581464] imx-dwmac 428a0000.ethernet: User ID: 0x10, Synopsys ID: 0x52 [ 1.588255] imx-dwmac 428a0000.ethernet: DWMAC4/5 [ 1.593038] imx-dwmac 428a0000.ethernet: DMA HW capability register supported [ 1.600159] imx-dwmac 428a0000.ethernet: RX Checksum Offload Engine supported [ 1.607283] imx-dwmac 428a0000.ethernet: TX Checksum insertion supported [ 1.613973] imx-dwmac 428a0000.ethernet: Wake-Up On Lan supported [ 1.620110] imx-dwmac 428a0000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 1.627757] imx-dwmac 428a0000.ethernet: Enabled L3L4 Flow TC (entries=8) [ 1.634536] imx-dwmac 428a0000.ethernet: Enabled RFS Flow TC (entries=10) [ 1.641316] imx-dwmac 428a0000.ethernet: Enabling HW TC (entries=256, max_off=256) [ 1.648876] imx-dwmac 428a0000.ethernet: Using 32/32 bits DMA host/device width [ 1.657380] imx-dwmac 428a0000.ethernet: tx clock disable start [ 1.663414] imx-dwmac 428a0000.ethernet: err_drv_probe [ 1.668557] imx-dwmac 428a0000.ethernet: err_dwmac_init [ 1.677361] ci_hdrc ci_hdrc.0: EHCI Host Controller [ 1.682306] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1 [ 1.709253] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 [ 1.715211] hub 1-0:1.0: USB hub found [ 1.718981] hub 1-0:1.0: 1 port detected [ 1.726882] ci_hdrc ci_hdrc.1: EHCI Host Controller [ 1.731789] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2 [ 1.753257] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 [ 1.759191] hub 2-0:1.0: USB hub found [ 1.762965] hub 2-0:1.0: 1 port detected [ 1.770674] rtc rtc0: Power loss detected, invalid time [ 1.776048] rtc-pcf85063 0-0051: registered as rtc0 [ 1.781185] rtc rtc0: Power loss detected, invalid time [ 1.786407] rtc-pcf85063 0-0051: hctosys: unable to read the hardware clock [ 1.793553] pca953x 0-0020: supply vcc not found, using dummy regulator [ 1.800254] pca953x 0-0020: using no AI [ 1.804716] i2c i2c-0: LPI2C adapter registered [ 1.810507] pca953x 1-0022: supply vcc not found, using dummy regulator [ 1.817269] pca953x 1-0022: using AI [ 1.822077] at24 1-0050: supply vcc not found, using dummy regulator [ 1.828917] at24 1-0050: 1024 byte 24c08 EEPROM, writable, 16 bytes/write [ 1.835795] i2c i2c-1: LPI2C adapter registered [ 1.841329] i2c i2c-2: LPI2C adapter registered [ 1.846907] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 1.854932] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 1.865632] imx-dwmac 428a0000.ethernet: IRQ eth_lpi not found [ 1.871579] imx-dwmac 428a0000.ethernet: tx clock enable start [ 1.877611] imx-dwmac 428a0000.ethernet: User ID: 0x10, Synopsys ID: 0x52 [ 1.884419] imx-dwmac 428a0000.ethernet: DWMAC4/5 [ 1.889206] imx-dwmac 428a0000.ethernet: DMA HW capability register supported [ 1.896327] imx-dwmac 428a0000.ethernet: RX Checksum Offload Engine supported [ 1.903449] imx-dwmac 428a0000.ethernet: TX Checksum insertion supported [ 1.910153] imx-dwmac 428a0000.ethernet: Wake-Up On Lan supported [ 1.916235] imx-dwmac 428a0000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 1.923878] imx-dwmac 428a0000.ethernet: Enabled L3L4 Flow TC (entries=8) [ 1.930655] imx-dwmac 428a0000.ethernet: Enabled RFS Flow TC (entries=10) [ 1.937446] imx-dwmac 428a0000.ethernet: Enabling HW TC (entries=256, max_off=256) [ 1.945009] imx-dwmac 428a0000.ethernet: Using 32/32 bits DMA host/device width [ 2.091986] imx-dwmac 428a0000.ethernet: tx clock disable start [ 2.092418] sdhci-esdhc-imx 42860000.mmc: Got CD GPIO [ 2.099328] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.111052] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.122102] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.130156] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.134093] mmc1: SDHCI controller on 42860000.mmc [42860000.mmc] using ADMA [ 2.139573] nxp-pca9450 1-0025: pca9451a probed. [ 2.152583] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.160637] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.171559] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 2.180575] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 2.186741] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 2.194068] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 2.197312] clk: Disabling unused clocks [ 2.202716] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db [ 2.214819] ALSA device list: [ 2.217793] No soundcards found. [ 2.221596] Waiting for root device /dev/mmcblk1p2... [ 2.287788] mmc1: host does not support reading read-only switch, assuming write-enable [ 2.298005] mmc1: new high speed SD card at address 0001 [ 2.303890] mmcblk1: mmc1:0001 00000 1.81 GiB [ 2.311020] mmcblk1: p1 p2 [ 2.315100] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 2.323111] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 2.339143] exFAT-fs (mmcblk1p2): invalid boot record signature [ 2.345082] exFAT-fs (mmcblk1p2): failed to read boot sector [ 2.350777] exFAT-fs (mmcblk1p2): failed to recognize exfat type [ 2.358002] erofs: (device mmcblk1p2): mounted with root inode @ nid 36. [ 2.364768] VFS: Mounted root (erofs filesystem) readonly on device 179:98. [ 2.371789] devtmpfs: mounted [ 2.375967] Freeing unused kernel memory: 1984K [ 2.380690] Run /sbin/init as init process [ 2.384782] with arguments: [ 2.384785] /sbin/init [ 2.384787] with environment: [ 2.384790] HOME=/ [ 2.384792] TERM=linux [ 4.633259] random: crng init done [ 12.406378] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 12.414399] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 12.424617] platform imx-lcdifv3-crtc.0: deferred probe pending そしてip linkがeth0を設定したとき(このDMA問題をデバッグするためにドライバに追加した非標準のトレースをいくつか追加しました) # ip link set eth0 up [ 236.851517] imx-dwmac 428a0000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 236.859339] imx-dwmac 428a0000.ethernet: tx clock enable start [ 236.974901] imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops) [ 236.982933] imx93-ldb ldb-display-controller: No data-mapping in DT, will use negotiated bus format. [ 237.081392] imx-dwmac 428a0000.ethernet eth0: PHY [stmmac-1:00] driver [Generic PHY] (irq=POLL) [ 237.090112] Checking DMA clocks before reset... [ 237.094643] DMA_HW_CAPABILITY = 0x0 [ 237.098124] RESET START: DMA_BUS_MODE = 0x1 [ 237.102301] AFTER WRITE: DMA_BUS_MODE = 0x1 [ 238.107432] POLL RESULT: ret=-110, DMA_BUS_MODE = 0x1 [ 238.112492] imx-dwmac 428a0000.ethernet: Failed to reset the dma [ 238.118519] imx-dwmac 428a0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 238.127210] imx-dwmac 428a0000.ethernet eth0: __stmmac_open: Hw setup failed [ 238.194819] imx-dwmac 428a0000.ethernet: tx clock disable start ip: SIOCSIFFLAGS: Connection timed out ご回答をよろしくお願いします。 よろしくお願いいたします。 ジュリアン Re: DMA Error with imx93 and eqos in RMII こんにちは、 PHYにおいてリセット信号が正しくアサートされていることを確認してください。 PHYに短時間クロック信号が供給されず、その後クロック信号が再び供給されるようになった場合、すべてのコンフィギュレーションストラップをラッチし、通常の動作モードに復帰させるために、PHYにリセット信号を供給する必要があります。 dmesgの全文を共有してください。 よろしくお願いいたします。 Re: DMA Error with imx93 and eqos in RMII こんにちは、 情報ありがとうございます。 レジスタにアクセスできるため、MACは完全にリセットされることはありません。 REF_CLKがどのように提供されているかを確認するために、回路図の接続を教えていただけますか? また、cat /sys/kernel/debug/clk/clk_summary にクロックサマリーを表示してください。 よろしくお願いいたします。 Re: DMA Error with imx93 and eqos in RMII 回路図の全容を公開フォーラムで共有したくありません。プライベートで送ってもいいですか? REF_CLKはENET1_TD2（imx93のU12ピン）を介して供給されます。デバイスツリーでは、この行です。 MX93_PAD_ENET1_TD2__CCM_ENET_QOS_CLOCK_GENERATE_REF_CLK 0x57e オシロスコープで確認したところ、u-boot のクロックは正しいのですが、同様の DMA エラーが発生します (詳細は不明)。 Linuxでは、何かがクロックを止めているのだと思います(私の推測では、DMAエラーがクロックのリリースを引き起こし、Linuxカーネルが未使用として停止しているのだと思います)。 clk_summaryの内容は以下のとおりです。 enable prepare protect duty hardware connection clock count count count rate accuracy phase cycle enable consumer id --------------------------------------------------------------------------------------------------------------------------------------------- pcf85063-clkout 0 0 0 0 0 0 50000 Y deviceless no_connection_id sys_pll_pfd2 1 1 0 625000000 0 0 50000 Y deviceless no_connection_id wakeup_axi_root 2 2 0 312500000 0 0 50000 Y 42860000.mmc ahb 42850000.mmc ahb deviceless no_connection_id enet_qos 0 0 0 312500000 0 0 50000 N 428a0000.ethernet mem 428a0000.ethernet pclk 428a0000.ethernet stmmaceth deviceless no_connection_id enet1 0 0 0 312500000 0 0 50000 N 42890000.ethernet ahb 42890000.ethernet ipg deviceless no_connection_id edma2 1 1 0 312500000 0 0 50000 Y 42000000.dma-controller edma deviceless no_connection_id sys_pll_pfd2_div2 0 0 0 312500000 0 0 50000 Y deviceless no_connection_id sys_pll_pfd1 3 3 0 800000000 0 0 50000 Y deviceless no_connection_id media_axi_root 1 1 0 400000000 0 0 50000 Y 4ae30000.lcd-controller disp-axi 4ac10000.system-controller axi deviceless no_connection_id nic_media 1 1 0 400000000 0 0 50000 Y 4ac10000.system-controller nic power-domain@44462400 no_connection_id deviceless no_connection_id nic_axi_root 1 1 0 400000000 0 0 50000 Y deviceless no_connection_id ccm_cko4_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko3_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko2_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id ccm_cko1_root 0 0 0 266666667 0 0 50000 N deviceless no_connection_id usdhc3_root 0 0 0 200000000 0 0 50000 N deviceless no_connection_id usdhc3 0 0 0 200000000 0 0 50000 N deviceless no_connection_id usdhc2_root 0 0 0 400000000 0 0 50000 N deviceless no_connection_id usdhc2 0 0 0 400000000 0 0 50000 N 42860000.mmc per deviceless no_connection_id usdhc1_root 0 0 0 400000000 0 0 50000 N deviceless no_connection_id usdhc1 0 0 0 400000000 0 0 50000 N 42850000.mmc per deviceless no_connection_id flexspi1_root 0 0 0 200000000 0 0 50000 N deviceless no_connection_id flexspi1 0 0 0 200000000 0 0 50000 N deviceless no_connection_id sys_pll_pfd1_div2 6 6 0 400000000 0 0 50000 Y deviceless no_connection_id enet_ref_phy_root 0 0 0 50000000 0 0 50000 N 42890000.ethernet enet_out deviceless no_connection_id enet_timer1_root 0 0 0 100000000 0 0 50000 N 42890000.ethernet ptp deviceless no_connection_id enet_timer2_root 0 0 0 100000000 0 0 50000 N 428a0000.ethernet ptp_ref deviceless no_connection_id media_apb_root 1 2 0 133333334 0 0 50000 Y ldb-phy apb system-controller@4ac10000 no_connection_id 4ac10000.system-controller apb power-domain@44462400 no_connection_id deviceless no_connection_id isi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller isi deviceless no_connection_id pxp 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller pxp deviceless no_connection_id lcdif 0 0 0 133333334 0 0 50000 N 4ae30000.lcd-controller disp-apb 4ac10000.system-controller lcdif deviceless no_connection_id mipi_dsi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller dsi deviceless no_connection_id mipi_csi 0 0 0 133333334 0 0 50000 N 4ac10000.system-controller csi deviceless no_connection_id hsio_root 1 1 0 133333334 0 0 50000 Y deviceless no_connection_id usb_controller 0 0 0 133333334 0 0 50000 N 4c200000.usb no_connection_id 4c100000.usb no_connection_id deviceless no_connection_id lpspi4_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi4 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi3_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi3 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi2_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi2 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi1_root 0 0 0 50000000 0 0 50000 N deviceless no_connection_id lpspi1 0 0 0 50000000 0 0 50000 N deviceless no_connection_id swo_trace_root 0 0 0 133333334 0 0 50000 N deviceless no_connection_id bus_aon_root 1 1 0 133333334 0 0 50000 Y i2c@44350000 no_connection_id i2c@44340000 no_connection_id deviceless no_connection_id tstmr1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id pdm_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai1_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id tpm1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id lpit1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id mu1_b 0 0 0 133333334 0 0 50000 N 44230000.mailbox no_connection_id deviceless no_connection_id mu1_a 0 0 0 133333334 0 0 50000 Y deviceless no_connection_id sema1 0 0 0 133333334 0 0 50000 N deviceless no_connection_id bus_wakeup_root 4 4 0 133333334 0 0 50000 Y 42860000.mmc ipg i2c@42530000 no_connection_id 42850000.mmc ipg deviceless no_connection_id tstmr2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai3_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id sai2_ipg_clk 0 0 0 133333334 0 0 50000 N deviceless no_connection_id tpm3 0 0 0 133333334 0 0 50000 N deviceless no_connection_id lpit2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id gpio4 2 2 0 133333334 0 0 50000 Y 43830000.gpio gpio 43830000.gpio port deviceless no_connection_id gpio3 2 2 0 133333334 0 0 50000 Y 43820000.gpio gpio 43820000.gpio port deviceless no_connection_id gpio2 2 2 0 133333334 0 0 50000 Y 43810000.gpio gpio 43810000.gpio port deviceless no_connection_id mu2_b 0 0 0 133333334 0 0 50000 N 42440000.mailbox no_connection_id deviceless no_connection_id mu2_a 0 0 0 133333334 0 0 50000 Y deviceless no_connection_id sema2 0 0 0 133333334 0 0 50000 N deviceless no_connection_id m33_root 4 4 0 200000000 0 0 50000 Y deviceless no_connection_id gpio1 2 2 0 200000000 0 0 50000 Y 47400000.gpio gpio 47400000.gpio port deviceless no_connection_id edma1 1 1 0 200000000 0 0 50000 Y 44000000.dma-controller edma deviceless no_connection_id cm33 1 1 0 200000000 0 0 50000 Y deviceless no_connection_id a55_mtr_bus_root 1 1 0 133333334 0 0 50000 Y deviceless no_connection_id sys_pll_pfd0 2 2 0 1000000000 0 0 50000 Y deviceless no_connection_id a55_alt_root 1 1 0 500000000 0 0 50000 Y deviceless no_connection_id a55_alt 0 0 0 500000000 0 0 50000 N deviceless no_connection_id a55_periph_root 1 1 0 333333334 0 0 50000 Y deviceless no_connection_id sys_pll_pfd0_div2 0 0 0 500000000 0 0 50000 Y deviceless no_connection_id usb_phy_root 0 0 0 50000000 0 0 50000 N usbphynop2 main_clk usbphynop1 main_clk deviceless no_connection_id enet_ref_root 0 0 0 250000000 0 0 50000 N 42890000.ethernet enet_clk_ref deviceless no_connection_id enet_root 0 0 0 50000000 0 0 50000 N 428a0000.ethernet tx deviceless no_connection_id dummy 0 0 0 0 0 0 50000 Y deviceless no_connection_id clk_ext1 0 0 0 133000000 0 0 50000 Y clock-controller@44450000 clk_ext1 deviceless no_connection_id osc_24m 6 6 3 24000000 0 0 50000 Y clock-controller@44450000 osc_24m timer@44290000 per deviceless no_connection_id pmro 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tmc 1 1 0 24000000 0 0 50000 Y 44482000.tmu no_connection_id deviceless no_connection_id sys_cnt 1 1 0 24000000 0 0 50000 Y deviceless no_connection_id hsio_trout_24m 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog3 1 1 0 24000000 0 0 50000 Y 42490000.watchdog no_connection_id deviceless no_connection_id wdog2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id wdog1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pal_came_scan_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2_slow_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1_slow_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id spdif_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id spdif 0 0 0 24000000 0 0 50000 N deviceless no_connection_id audio_xcvr_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id aud_xcvr 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tstmr2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tstmr1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pdm_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id pdm 0 0 0 24000000 0 0 50000 N deviceless no_connection_id adc_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id adc1 0 0 0 24000000 0 0 50000 N 44530000.adc ipg deviceless no_connection_id mipi_phy_cfg_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mipi_test_byte_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id cam_pix_root 0 0 0 24000000 0 0 50000 N 4ac10000.system-controller cam deviceless no_connection_id ml_root 0 0 0 24000000 0 0 50000 N power-domain@44461800 no_connection_id deviceless no_connection_id ml_apb_root 0 0 0 24000000 0 0 50000 N power-domain@44461800 no_connection_id deviceless no_connection_id hsio_acscan_480m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id hsio_acscan_80m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id hsio_usb_test_60m_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id usb_test_60m 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai3_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai3 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id mqs1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id sai1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id i3c1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpspi5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpi2c3_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c3 0 0 1 24000000 0 0 50000 N i2c@42530000 no_connection_id deviceless no_connection_id lpi2c2_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c2 0 0 1 24000000 0 0 50000 N i2c@44350000 no_connection_id deviceless no_connection_id lpi2c1_root 0 0 1 24000000 0 0 50000 N deviceless no_connection_id lpi2c1 0 0 1 24000000 0 0 50000 N i2c@44340000 no_connection_id deviceless no_connection_id lpuart8_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart8 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart7_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart7 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart3_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart3 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lpuart1_root 1 1 0 24000000 0 0 50000 Y deviceless no_connection_id lpuart1 1 1 0 24000000 0 0 50000 Y 44380000.serial ipg deviceless no_connection_id can2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id can1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm6_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm6 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm5_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm5 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm4_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm4 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id tpm2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id lptmr1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio2_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio2 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio1_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id flexio1 0 0 0 24000000 0 0 50000 N deviceless no_connection_id m33_systick_root 0 0 0 24000000 0 0 50000 N deviceless no_connection_id video_pll 0 0 0 1039500000 0 0 50000 Y deviceless no_connection_id media_disp_pix_root 0 0 0 148500000 0 0 50000 N 4ae30000.lcd-controller pix 4ac10000.system-controller disp deviceless no_connection_id media_ldb_root 0 0 0 1039500000 0 0 50000 N deviceless no_connection_id lvds 0 0 0 1039500000 0 0 50000 N deviceless no_connection_id audio_pll 0 0 0 393216000 0 0 50000 Y deviceless no_connection_id arm_pll 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id a55_sel 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id a55_core 1 1 0 1700000000 0 0 50000 Y deviceless no_connection_id osc_32k 1 1 0 32768 0 0 50000 Y clock-controller@44450000 osc_32k deviceless no_connection_id hsio_32k 2 2 0 32768 0 0 50000 Y 4c200000.usb usb_wakeup_clk 4c100000.usb usb_wakeup_clk deviceless no_connection_id # Re: DMA Error with imx93 and eqos in RMII ref_clkと回路図に関する私の回答は別のメッセージに記載されていますので、そちらをご覧ください。どうやら誤って別の返信ボタンを使ってしまったようです。 また、以下の方法も試しました。https://community.nxp.com/t5/i-MX-Processors/i-MX93-EQoS-RMII-mode-with-internal-50MHz-reference-clock/m-p/1947843 はほぼ同じ問題に見えますが、うまく動作しませんでした。 サポートありがとうございます。 Re: DMA Error with imx93 and eqos in RMII リンクのパッチと以下の設定を使ってようやく動作させることができました: &eqos { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_eqos>; phy-mode = "rmii"; phy-handle = <&ethphy1>; status = "okay"; assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>, <&clk IMX93_CLK_SYS_PLL_PFD0_DIV2>; assigned-clock-rates = <100000000>, <50000000>; enet_clk_sel = <&wakeupmix_gpr 0x2C>; clk_csr = <5>; // snps,rmii_refclk_ext; mdio { compatible = "snps,dwmac-mdio"; #address-cells = <1>; #size-cells = <0>; clock-frequency = <5000000>; ethphy1: ethernet-phy@0 { reg = <0>; eee-broken-1000tx; reset-gpios = <&pcal6524 19 GPIO_ACTIVE_LOW>; reset-assert-us = <15000>; reset-deassert-us = <100000>; smsc,disable-energy-detect; }; }; }; パッチが何なのか説明してもらえますか https://community.nxp.com/t5/i-MX-Processors/i-MX93-EQoS-RMII-mode-with-internal-50MHz-reference-clock/m-p/1947843なぜそれが必要なのですか？ また、これらの変更はSOCの通常のユースケースのように見えるので、上流にすべきではないでしょうか? Re: DMA Error with imx93 and eqos in RMII こんにちは、 それが今は正常に動作していると知って安心しました。 このパッチは、ドライバのdwmac-imx/EQoSを修正し、RMIIが外部クロックを使用している場合にENET_QOS設定します。 この変更が必要なのは、EQoSがDMAリセット中に一定のクロックを必要とするためです。 よろしくお願いいたします。

SE051C2：所有安全对象操作均返回 0x6985，而 GetRandom 操作在相同的身份验证下工作。 问题概括如下 在 **SE051C2** 上，每个操作小程序对象存储的命令都会返回 **0x6985（条件未满足）** — 虽然 `GetRandom` 在*相同* 数据集上成功执行 包括通过武装平台 SCP03 频道进行的会话。 ## 我们的问题 **问题1.这部分内容是否处于“强制平台 SCP”/受限/传输状态？ 我们的两个样品都是原样交付的，其中一个是工厂新鲜出炉的。如果 SE051C2 随附 对象存储将被锁定，直到 NXP 平台上的 SCP03 密钥轮换完毕。 如果采用默认设置，就能完全解释以下所有观察结果。如果是这样，那是什么？ 离开该州的详细程序文件？ **问题2。对象操作是否需要客户密钥（已轮换）平台 SCP03，而不是 默认平台密钥？我们的频道使用默认设置进行身份验证， 显然它承载着流量——但是所有针对它的对象命令都被拒绝。 **问题3。如果 Q1/Q2 的答案是肯定的：我们如何先读取 UNIQUE_ID？ 这是一个先有鸡还是先有蛋的问题，彻底阻碍了我们。我们的平台密钥派生需要 它以芯片 UID 作为输入，但 `ReadObject(UNIQUE_ID)` 本身就是被拒绝的函数之一。 命令。对新零件的预期操作顺序是什么？ **第四季度。是否有 GET DATA / GET STATUS 命令可以报告小程序的状态？ 生命周期/VC状态？**无状态命令对我们来说确实有效，所以如果存在这样的查询 我们可以自己确认零件的状态，而不是靠猜测。 Q5.是什么让这部分明明可以正常工作，却拒绝创建普通物体呢？ 对其他人来说呢？在 DeleteAll/0x6985 线程 (mp/1648349) 中，步骤 1 是 `Se05x_API_WriteUserID(... FACTORY_RESET ...)` 返回 **0x9000** — a WriteSecureObject 在仅使用 SCP03 平台的默认会话中成功执行。那是 正是我们遇到的那种命令类型失效了。所以对象写入本质上并非如此 会话门控。区别在于型号/配置（SE051C2 与 SE050），还是 平台密钥仍然是 NXP 的默认值吗？ Q6.m-p/1716555 是否是同一根本原因？那里，另一位用户报告说 `Se05x_API_WriteUserID` 返回 `SM_ERR_CONDITIONS_OF_USE_NOT_SATISFIED` — 我们确切的情况 症状——而这个问题似乎还没有得到解答。 **Q7.`kSE05x_ECCurve_NIST_P256` 是否需要显式调用 `Se05x_API_CreateECCurve` 在 SE051C2，还是版本？**（小问题——但我们试过了，即使是 CreateECCurve 也是 拒绝了。） ## 我们测量了什么 | 检查 | 结果 | 含义 | |---|---|---| | `Se05x_API_SELECT` 小程序 | **0x9000** | 已选择 IoT 小程序 | | `Se05x_API_GetRandom`（普通）| 真实熵 | 会话 + 传输工作量 | | 平台 SCP03 身份验证 | **成功** | 默认密钥集匹配 | | **通过 SCP03 频道获取随机数** | **成功，真实熵** | 加密 + C-MAC + 解密已验证 | | 第二个连续执行的命令 | **成功** | 命令计数器保持同步 | | `WriteECKey` NIST P-256（生成） | **0x6985** | | | `WriteECKey` secp256k1（导入） | **0x6985** | `CreateCurve_secp256k1` 首先被调用 | | `WriteECKey` Ed25519（导入） | **0x6985** | 内置曲线，无需 CreateCurve | | `ReadObject(UNIQUE_ID)` | **0x6985** | 不涉及策略参数 | | `WriteBinary_Ver`（带文件策略） | **0x6985** | 文件对象也失败 | | `CreateECCurve(NIST_P256)` | **0x6985** | 甚至连创建曲线的操作都被拒绝 | | `CheckObjectExists` | **0x6985** | 甚至无法检测对象是否存在 | **只有`GetRandom`命令有效。**每个对象存储操作都会返回 0x6985 — 在两个样品上，无论是普通样品还是 SCP03 包装的样品。 ## 已通过实验排除 1. **不是零件。**第二台全新出厂的 SE051C2 表现完全相同。 2. **不是指交通或课程本身。**SELECT 返回 0x9000；GetRandom 返回 real 同一会话的熵。 3. **并非平台SCP03通道损坏或缺失。**身份验证成功 默认密钥集，以及——至关重要的是——对武装人员发出的 `GetRandom` 命令。 通道**返回真实熵，第二个背靠背（命令计数器）也是如此。 同步）。加密 + C-MAC + 响应解密全部验证通过。失败的对象命令 通过我们已验证有效的渠道传输。 4. **并非缺少关键策略。**我们传递了一个真正的 `Se05xPolicy_t` （`ALLOW_SIGN|VERIFY|KA|READ|WRITE|GEN`，authID 0）到每个`WriteECKey`。没有变化。 （无论如何，它都无法解释 UNIQUE_ID 的读取——`ReadObject` 不接受任何策略。） 5. **并非缺失曲线。**`CreateCurve_secp256k1` 在 secp256k1 之前调用 导入时，Ed25519 已内置，`Se05x_API_CreateECCurve(NIST_P256)` 也**可用** 返回 0x6985。 6. **非命令式指令。**无论是在普通会话中还是在其他会话中发出，都会出现相同的 0x6985 错误。 已验证的 SCP03 频道。 7. **并非中间件身份验证版本配置。**重建 `SSS_HAVE_SE05X_AUTH_PLATFSCP03=1`、`SSS_HAVE_SE05X_AUTH_NONE=0` 和 `SSSFTR_SE05X_AuthSession=1`（之前为 NONE / 0）。没有变化。 ＃＃ 环境 * 部件：**SE051C2** — 两个样品，一个为全新出厂样品，性能完全相同 * 主机：STM32L562，裸机，TrustZone 安全网络，I2C1 @ 100 kHz，T=1 * 中间件：基于自定义的 NXP Plug & Trust `Se05x_API_*` 供应商提供的中间件 `smCom_TransceiveRaw` 传输（我们自己的 T=1 帧——SELECT 和 GetRandom 证明） 有用）。完整的中间件，**不是** nano-代码包，软件包。 * 平台 SCP03：NXP 默认密钥；身份验证成功并承载流量 SE050 Re: SE051C2: all Secure Object operations return 0x6985 while GetRandom works over the same authenti 嗨@winetime ， 您是否尝试过在不启用 platformSCP 的情况下执行相同的操作？SE051C默认情况下不需要强制平台 SCP。如果您能提供此问题的 APDU 命令日志，我们将进一步检查。 祝你有美好的一天， 坎 ------------------------------------------------------------------------------- 笔记： - 如果此回复解答了您的问题，请点击“标记为正确答案”按钮。谢谢你！ - 我们会持续关注帖子，从最后一条回复发出后持续7周，之后的回复将被忽略。 如果您之后有相关问题，请另开新帖并引用已关闭的帖子。 ------------------------------------------------------------------------------- Re: SE051C2: all Secure Object operations return 0x6985 while GetRandom works over the same authenti 你好 坎， 谢谢 为了 这 快的 回复。 是的——在没有平台 SCP 的情况下进行了测试，这实际上是我们的正常情况。 我们的对象操作运行 前 se051_scp03_open() 被调用，所以他们已经在普通的会话中，并且在那里失败了。之后启动SCP-03平台没有任何区别——仍然是0x6985错误代码。 任何一个 方式。 以下是APDU日志。普通会话，无 SCP-03（CLA=0x80，无 0x04 安全消息传递位；响应是一个裸露的 地位 单词， 不是 （已包装）：     TX (11): 80 04 00 27 06 41 04 20 00 F0 30 RX（2）：69 85   那是 检查对象是否存在 （INS） 04 MGMT，P2 27，TAG_1 对象ID 0x2000F030) — 只读存在性测试 — 因条件而被拒绝 不是 使满意。 无论我们尝试哪个对象存储命令，无论对象 ID 是什么，都会返回相同的错误代码 0x6985： 检查对象是否存在 WriteBinary_Ver （采用文件策略） 写入EC密钥 （生成并导入；P-256，secp256k1 与 创建曲线_secp256k1 首先，以及 Ed25519）， CreateECCurve(NIST_P256)，以及 读取对象(UNIQUE_ID) 。 在同一场会议上，这些 工作 美好的： 选择 物联网小程序 → 0x9000 获取随机数 → 真实熵 所以传输和小程序选择都不错；只有对象存储功能比较好。 命令 是 拒绝了。 问题： 什么原因会导致全新出厂的 SE051C2 拒绝工作？ 检查对象是否存在 在普通的会话中？我们观察到了相同的行为 在 二 样品 一 品牌 新的 和 绝不 书面 到。 是否有 GET DATA（或类似）查询可以报告小程序的生命周期/配置状态？无状态命令适用于 我们， 所以 我们 能 跑步 它 正确的 离开 和 报告 后退。 设置：SE051C2、STM32L562 裸机主机、I2C 100 kHz、我们自己的 T=1 帧格式（SELECT 和 GetRandom 函数验证了这一点）、完整的即插即用中间件 Se05x_API_* ， 不是 纳米代码包，软件包。 Re: SE051C2: all Secure Object operations return 0x6985 while GetRandom works over the same authenti @Kan_Li你好——这个问题到此结束。是我们这边的问题，而且诊断从一开始就是错误的。 开始。**把解决方法贴出来，希望能帮到其他人。   这个零件没问题。我曾经对整个启动过程的 APDU 跟踪进行插桩，而不是仅仅读取。 单个结果显示，一次干净的启动后产生了 83 个 APDU，其中 80 个 APDU 的值为 0x9000 — 对象 创建、secp256k1 密钥生成、 ` ReadObject`和ECDSA 签名功能均正常。 非 0x9000 响应是良性的，并且已经由我们自己的代码处理：   80 01 0B 04 CreateECCurve(secp256k1) -> 6985 曲线已存在 80 01 61 00 WriteECKey > 6A80 对象已存在，类型错误 80 04 00 27 CheckObjectExists -> 9000 80 04 00 28 DeleteSecureObject -> 9000 删除后，80 01 61 00 WriteECKey > 9000 成功   **我当时实际看到的是…… **当我的每一个……时，SE 已经处于楔形状态。 测试启动已启动，这是之前会话遗留下来的。一旦卡住， *每个* APDU 都会返回 0x6985 —包括` GetRandom` 、 ` GetVersion`和` GetFreeMemory` —并且状态仍然存在 MCU RESET、T=1接口RESET，以及重新执行`SELECT`返回0x9000的命令。仅 断电即可清除。所以我报告的每一个测量结果都是楔形体的测量结果，而不是…… 功能被屏蔽了，我的“GetRandom”是唯一有效的命令，而“GetVersion”是 “被拒绝”的说法都是那段历史的产物。抱歉，噪音太大了。   需要说明的是，在正常的启动上，该部件会报告：   * ` GetVersion` → ` 07 02 00 3F FF FF FF` — applet ** 7.2.0 ** , AppletConfig ` 0x3FFF` * ` GetFreeMemory(PERSISTENT) ` → ` 0x3E0C` = ** 15,884字节**可用 * SCP03 平台使用OEF 0005A8FA (SE051C)的默认密钥集进行身份验证。   **或许还有一点值得您评论** ，因为这是我不了解的部分。 我明白这一点，而且这会对我们的运输产生影响：   即使受到阻碍，GP 网络安全-功能域命令仍然有效——`80 50 00 00` INITIALIZE UPDATE 和` 84 82 33 00` EXTERNAL AUTHENTICATE 都返回 0x9000 — 而 IoT 小程序拒绝所有请求。是否存在已记录的具有该形状的小程序错误状态？ 有没有办法在不断电的情况下检测或清除它？（已部署的设备） 它无法独立地对其安全元件进行断电重启，因此如果主机可以驱动小程序 陷入这种状态，我们需要知道如何才能摆脱它。   感谢您之前的快速回复。

Kinetis (KW3x/4x, MCX W7x & MCX W23) Power Profile Tools for Automotive, IIoT, CGM & Localization This page is dedicated to the Kinetis (KW35/KW38/KW45/KW47) and MCX Wx (MCX W71/72) One Connectivity Power Profiling Tool (experimental). It will help you to estimate the power consumption in your application (Automotive or IIoT) and evaluate the battery life time of your solution. This page content a dedicated power profile tool for 'One Connectivity Power Profiling Tool' which includes: New: KW43 (Automotive) and MCX W70 (IIoT) products in standalone based on simulation. KW3x/KW4x (Automotive) and MCX W7x (IIoT) products in standalone. MCX W23 (IIoT) product in standalone. MCX W71 & W72 product in standalone (IIoT). New: MCX W70 product in standalone (IIoT) based on simulation. Bluetooth LE 802.15.4 Matter & ZED id:NXP-Knowledge-Base [start:July 31 2026]

.exe通常のパッケージ形式ですか? こんにちは、 私は一部のマイクロコントローラファミリ向けのCAN/UARTブートローダーの開発者です。サポートするマイクロコントローラのラインナップを拡大し、一部のNXPデバイスのサポートを追加することが理にかなっているのかを考えたいです。これまでNXPのマイクロコントローラを使ったことはありません。 フォーラムやNXPのウェブサイトで「bootloader」という用語を検索すると、多くのWindows実行ファイルがダウンロードされているのが見つかり、少し驚きました。メインサイトの検索バーに「bootloader」という言葉を追加すると、2つ目のヒットは暗号通貨のウェブ側への直接リンクまで出てきます。 「Unified bootloader Demo」を見たい場合、本当にWindows PCが必要で、.exeファイルをダウンロードして実行する必要があるのでしょうか？ファイル？ よろしくお願いいたします トルステン

i.MX8MQ：启动 ROM 是否支持从 FlexSPI/QSPI NOR 闪存启动？ 你好， 硬件： - i.MX8MQ（REV A0），基于 EVK 设计的定制板 - QSPI 或非：Micron MT25QL256A（32MB，3.3V，四路连接） - 电路板支持包。Yocto Scarthgap、NXP 电路板支持包。、U-启动 2024.04 (u-启动-imx) 目标：从 FlexSPI 或非闪存启动启动加载程序（SPL + ATF + U-Boot）。 内核和根文件系统仍然保留在 eMMC 上。 有效的方法： - U-启动（通过 uuu SDP/SDPV 加载到 RAM 中）运行正常 - “sf probe”正确检测到闪存：mt25ql256a，32 MiB - U-启动 可以可靠地读取和写入闪存（已通过 “sf protect unlock”之后的回读测试验证） - 镜像版本使用了 IMXBOOT_TARGETS = "flash_evk_flexspi" 闪存布局（已通过读取芯片数据验证）： 0x000000：FCFB 标头 - “qspihdr 检查”报告 “在 Q(F)SPI 中找到启动配置头” 标签 = 42464346，版本 = 56010000 0x001000: IVT - d1 00 20 41，入口 = 0x007E1000， boot_data = 0x007E0FE0，self = 0x007E0FC0 0x060000：U-Boot 正确的 FIT（d00dfeed），匹配 CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000 问题： 启动开关设置为 QSPI/FlexSPI 启动，并使用 USB 电缆 物理断开连接后，板无法启动。什么都没有 打印在串口控制台上（SPL 横幅从未出现），并且 ROM 回退到串行下载模式： uuu -lsusb 2:1 MX8MQ SDP：0x1FC9 0x012B NXP 闪存 BT_FUSE_SEL 未熔断；启动配置通过 GPIO 完成。 启动引脚。 我已经尝试过： - 两种标头格式：scripts/qspi_header（c0ffee01 标签）和 scripts/fspi_header（FCFB 标签）。修复了 soc.mak，使其 flash_evk_flexspi 使用偏移量为 0 的 fspi_header。 - 改变 FCFB 参数：sflashA1Size、serialClkFreq（50MHz -> 20MHz）， dataSetupTime/dataHoldTime，sflashPadType - "uuu -b qspi"（官方内置脚本） - "qspihdr update safe" 和 "qspihdr init safe" - 完全擦除闪存与写入完整图像： 启动行为基本相同（SDP 出现于之后）。 （约 1.6 秒 vs 约 1.8 秒），这表明 ROM 可能没有被读取。 完全不开闪光灯。 问题： 1.i.MX8MQ 启动 ROM 是否支持从串行 或非 卡启动 是否支持通过 FlexSPI 进行闪存刷新？我拥有的参考手册部分 列出了与非闪存和 SD/MMC 作为引导设备，但我无法 找到列出的 FlexSPI/QSPI 或非。i.MX8MM/8MN 文档似乎 可以描述一下，但我不太确定 8MQ。 2. 如果支持，预期的闪存布局具体是什么？ 当 FCFB 为真时，IVT 应该位于偏移量 0x400 还是 0x1000？ 位于 0x0 处？ 3. 应选择正确的 BOOT_MODE / BOOT_CFG 组合。 i.MX8MQ 上采用 FlexSPI 或非 启动？ 4. 关于 REV A0 硅片，是否存在任何已知的勘误？ FlexSPI 启动？ 谢谢！

IW611 RU 设置 我想请教一下如何设置RU。 对于射频测试，技术人员参照“UM11749”手册第12章进行RU设置测试。但是，当我们编辑配置文件“TF_Config_20MHz.txt”时按照第 12.6 章的示例加载后，输出波形类似于未调制信号，我们无法确认预期的波形。 由于输出的是波形，我们认为文件已正确加载。 配置文件描述如下。 =================================================================== FRAME_CTRL_TYPE=1 \\IEEE_TYPE_CONTROL FRAME_CTRL_SUBTYPE=2 \\TRIGGER 配置持续时间字段 最大持续时间 帧持续时间=5484 \\0x156C 配置触发帧的通用信息字段 HE_trigger_frame.TrigCommonField.TriggerType = BASIC_TRIGGER; \\ HE_trigger_frame.TrigCommonField.UlLen = 1000; \\ 最大限度 HE_trigger_frame.TrigCommonField.MoreTF = FALSE; HE_trigger_frame.TrigCommonField.CSRequired = FALSE; HE_trigger_frame.TrigCommonField.UlBw = TB_BW_20MHZ; HE_trigger_frame.TrigCommonField.LTFType = LTF_1_GI_1_6uS; HE_trigger_frame.TrigCommonField.LTFMode = MU_MIMO_SINGLE_STREAM; HE_trigger_frame.TrigCommonField.LTFSymbol = 0; HE_trigger_frame.TrigCommonField.UlSTBC = FALSE; HE_trigger_frame.TrigCommonField.LdpcESS = TRUE; HE_trigger_frame.TrigCommonField.ApTxPwr = 0 HE_trigger_frame.TrigCommonField.PreFecPadFct = 1; HE_trigger_frame.TrigCommonField.PeDisambig = 0; HE_trigger_frame.TrigCommonField.SpatialReuse = 65535; HE_trigger_frame.TrigCommonField.Doppler = FALSE; HE_trigger_frame.TrigCommonField.HeSig2 = 0x1FF; 保留 TrigCommonField=0;1000;0;0;0;1;0;0;0;1;0;1;0;65535;0;511 配置触发帧的用户信息字段 HE_trigger_frame.TrigUserInfoField.AID12 = (5 & 0xFFF); HE_trigger_frame.TrigUserInfoField.RUAllocReg = 0; HE_trigger_frame.TrigUserInfoField.RUAlloc = 61; 53 (106 音调) HE_trigger_frame.TrigUserInfoField.UlCodingType = CODING_TYPE_LDPC; HE_trigger_frame.TrigUserInfoField.UlMCS = 0; HE_trigger_frame.TrigUserInfoField.UlDCM = FALSE; HE_trigger_frame.TrigUserInfoField.SSAlloc = 0; HE_trigger_frame.TrigUserInfoField.UlTargetRSSI = 80; TrigUserInfoField=5;0;61;1;0;0;0;80 配置触发信号依赖用户信息字段 HE_trigger_frame.BasicTrigUserInfo.MPDU_MU_SF = MPDU_SPACING_MULT_1; \\ HE_trigger_frame.BasicTrigUserInfo.TID_AL = 0; HE_trigger_frame.BasicTrigUserInfo.AC_PL = FALSE; HE_trigger_frame.BasicTrigUserInfo.Pref_AC = TB_AC_VO; BasicTrigUserInfo=0;0;0;0 =================================================================== 如果此描述有任何错误，请告知我。 另外，如果还有其他方法（不使用文件的方法），请告诉我。 Re: IW611 RU setup 你好@SA2 能否提供测试日志和捕获到的频谱图？ 顺祝商祺！ 肖恩 Re: IW611 RU setup 你好，肖恩。 感谢你的回复。 我分享一下光谱图的截图。 captured spectrum.png Re: IW611 RU setup 你好@SA2 能否分享一下您在标准样机和待测设备 (DUT) 上执行的命令？包括实验室工具返回值 顺祝商祺！ 肖恩 Re: IW611 RU setup 你好，肖恩。 在下达命令之前，我们想确认一些事情。 我们已经复习了第 12 章，但所有射频测试都必须使用传导测量进行。 （测试时，被测器件样品通过SMA电缆连接到频谱分析仪进行传导测量。） 因此，如果我们只使用一组被测器件进行传导测量，是否应该参考第 12.2 章？ Re: IW611 RU setup 你好@SA2 建议采用标准测试方法进行测量。这样我们就可以轻松地与测试报告进行比较，并找出是否存在任何问题。 顺祝商祺！ 肖恩

How to Watch CCTV Overseas When You See "Unavailable in Your Region" Trying to watch CCTV or CCTV-5 from overseas but getting a message that says "This content is unavailable in your region"? You're not alone. Many overseas Chinese, international students, and travelers encounter regional restrictions when using CCTV apps or China Media Group (CMG) streaming platforms. The good news is that there are several ways to improve your access and continue watching your favorite programs. Why Does CCTV Show "Unavailable in Your Region"? CCTV broadcasts many TV channels, live events, sports competitions, news programs, documentaries, and variety shows. However, due to copyright agreements and broadcasting licenses, some content is available only to viewers connecting from mainland China. If you're accessing CCTV from another country, you may experience: "This content is unavailable in your region." Live channels that fail to load. Black screens or playback errors. Sports events that cannot be streamed. Buffering or unstable video quality. These issues are especially common when watching CCTV-5, major sporting events, and exclusive live broadcasts. How to Watch CCTV from Abroad If you're overseas, the following methods can help improve your viewing experience. 1. Use a China-Optimized Network A connection that routes your traffic through mainland China can help the platform recognize your network as a domestic connection, allowing access to more region-restricted content. Many overseas users choose SpeedX China accelerator because it provides optimized China routes with stable speeds for streaming live TV, sports, and on-demand programs. 2. Sign In to Your CCTV or CMG Account Logging into your account can synchronize your viewing history and preferences across different devices. 3. Update the App Regularly Keeping the CCTV or related streaming app up to date helps ensure better compatibility and reduces playback issues caused by outdated software. What Content Is Commonly Restricted? Depending on licensing policies, overseas viewers may have limited access to: CCTV-5 live sports Major football and basketball events TV dramas Variety shows Documentaries Special live broadcasts News content is often available globally, while entertainment and sports programming are more likely to be region-locked. Final Thoughts Regional restrictions can make it difficult to watch CCTV while living or traveling abroad. Fortunately, using a reliable China-optimized connection can greatly improve your ability to access live channels and on-demand content. Whether you're following breaking news, watching CCTV-5 sports, or enjoying Chinese TV programs, SpeedX（回国VPN工具） offers a stable solution for many overseas users looking for a smoother viewing experience. Student Project

S32K344 SVD 文件错误 我从 S32DS 中调出了 S32K344 svd 文件（S32K344.svd），并尝试使用它，但文件的结构似乎存在数百个错误。 例如，在 MUXSEL 寄存器中（来自参考手册的第 62.8.10 节）在 SVD 文件中是这样定义的： lu_in LU_IN0 到 LU_IN11 < /description > 0x1 < /valu e > 但是所有枚举值 （LU_IN0 到 LU_IN11）的名称字段都是 " lu_in " 在将它们存储为枚举时会出现错误（多重定义符号 " lu_in ")。此外 - 列举甚至没有正确地涵盖空间。LU_IN 的值应该在 1 到 12 之间（0x1 到 0xC），而枚举值只到 0x9。 再比如，寄存器 MDACFG0 的 NMDAR 字段有一个枚举，除了被破坏之外，基本上没有任何作用。 NUMBER 寄存器数量 0x1 与 lu_in 示例类似，所有枚举都将"NUMBER" 作为每个枚举的名称。 寄存器 RRCR0 的字段 RR_INITMOD 与枚举 MOD_1_63 的问题基本相同，后者也只涵盖了部分可能的枚举值。 有没有人可以帮助我纠正这个问题？这些问题严重阻碍了我们使用 S32K3XX 芯片。 Re: S32K344 SVD File Bugs 你好@kscz、 遗憾的是，目前恩智浦官方还没有为 S32K3 提供 Rust 支持。 您可以创建一个小脚本，在将 SVD 输入到 svd2rust 之前删除/重命名重复内容。 顺祝商祺！ 帕维尔 Re: S32K344 SVD File Bugs 我有点困惑--你说得没错，我是想用 Rust 处理这个芯片，但我在这里提出的问题是任何人使用这个 SVD 文件的根本问题--无论是用于 CMSIS 还是 Rust。 MUXSEL 和 RR_INITMOD 等枚举只涵盖了部分可能的值，这似乎是一个错误。在任何字段的所有枚举中，名称字段都是相同的，这似乎是一个错误。 我不是要求恩智浦明确支持 Rust，而是要求修复 SVD 文件！ Re: S32K344 SVD File Bugs 你好@kscz、 我明白你的意思。我已将您的问题报告给软件团队。 谢谢你的报告。 顺祝商祺！ 帕维尔 Re: S32K344 SVD File Bugs 我需要等多久才能得到更新？ Re: S32K344 SVD File Bugs 你好@kscz、 我还没有收到开发团队的更新信息。我提高了优先级。 由于svd文件是RTD的一部分，我希望在下一个RTD版本中修复该问题。 顺祝商祺！ 帕维尔 Re: S32K344 SVD File Bugs S32K388 SVD 文件还有很多很多其他错误——我需要把这些错误也记录下来吗？是否有计划像S32K344那样对这款产品进行更新？ Re: S32K344 SVD File Bugs 你好@kscz、 感谢您报告此问题。我已将其转发给软件团队并提高了优先级。 顺祝商祺！ 帕维尔

如何在海外观看监控录像，即使看到“您所在地区无法观看”的提示？ 想在海外观看中央电视台或中央电视台五台，却收到“您所在地区无法观看此内容” 的提示 ？您并非个例。许多海外华人、留学生和旅行者在使用中央电视台应用程序或中华媒体集团（CMG）流媒体平台时都会遇到地区限制。 好消息是，有几种方法可以改善您的访问体验，让您继续观看您喜爱的节目。 为什么监控录像显示“您所在地区无法观看”？ 中央电视台播出众多电视频道、现场直播活动、体育赛事、新闻节目、纪录片和综艺节目。但是，由于版权协议和广播许可证的限制，部分内容仅供中国大陆观众观看。 如果您从其他国家/地区访问闭路电视监控系统，可能会遇到以下情况： “您所在的地区无法访问此内容。” 直播频道加载失败。 黑屏或播放错误。 无法进行直播的体育赛事。 视频缓冲或视频质量不稳定。 观看中央电视台5台、重大体育赛事和独家直播节目时，这些问题尤其常见。 如何从国外观看监控录像 如果您身在海外，以下方法可以帮助改善您的观看体验。 1. 使用针对中国市场优化的网络 通过中国大陆路由流量的连接可以帮助平台将您的网络识别为国内连接，从而允许您访问更多受地区限制的内容。 许多海外用户选择SpeedX 中国加速器，因为它提供优化的中国线路，速度稳定，可用于流畅观看直播电视、体育赛事和在线点播节目。 2. 登录您的闭路电视或 CMG 帐户 登录您的帐户即可在不同设备上同步您的观看历史记录和偏好设置。 3. 定期更新应用程序 保持监控录像或相关流媒体应用程序的更新有助于确保更好的兼容性，并减少因软件过时而导致的播放问题。 哪些内容通常会受到限制？ 根据许可政策，海外观众可能无法观看以下内容： 中央电视台5台体育直播 重大足球和篮球赛事 电视剧 综艺节目 纪录片 特别现场直播 新闻内容通常面向全球，而娱乐和体育节目则更有可能受到地区限制。 总结与展望 地区限制可能会使在国外居住或旅行时难以观看监控录像。幸运的是，使用可靠的、针对中国网络优化的连接可以大大提高您访问直播频道和在线点播内容的能力。 无论您是关注突发新闻、观看中央电视台5台体育频道，还是欣赏中国电视节目， SpeedX（回国VPN工具）都能为众多寻求更流畅观看体验的海外用户提供稳定的解决方案。 学生项目

S32K3 spi clk 异常低 我使用 S32K344 EVB 进行 SPI 测试。我使用 LPSPI1 单元作为主控端，引脚从 PTB14 到 PTB17，以及 RTD 4.0.0。P19.SPI 模式为 3：CPOL=1，CPHA=1 调用 Spi_SyncTransmit 后，我按照如下方式测量示波器，时钟引脚在帧真正传输之前变为低电平，这是什么原因造成的？如何解决这个问题？ zyt_0-1785493991563.png Re: S32K3 spi clk abnormal low 嗨@zyt 这种行为通常是由 ERR050456 的第一个解决方法引起的，该解决方法会对 LPSPI 模块执行 RESET。这种情况已经在其他帖子中讨论过了，例如[MCU S32K312] 上 CS 线变低之前出现额外的 SPI 时钟脉冲。 正如该帖子中所解释的，可以采用另一种变通方法，预计可以消除低脉冲。要启用此变通方法，请在项目中定义以下宏： ERR_IPV_LPSPIV2_E050456_2ND_SOLUTION BR，VaneB

i.MX8MP Heat Spreader Solution We are considering the following passive thermal solution for our i.MX 8M Plus–based infotainment application: Aluminum heat spreader: 20 × 20 × 1.5 mm (up to 30 × 30 × 2 mm) TIM: Henkel Bergquist Gap Filler TGF 2000 The aluminum plate will be used as a heat spreader on top of the i.MX 8M Plus. Would this solution be sufficient for a typical infotainment workload? If not, could you recommend the appropriate heat-spreader size or any additional thermal requirements? Re: i.MX8MP Heat Spreader Solution Hi @Wobaffet, Thank you for contacting NXP Support! For this purpose, I recommend reviewing the i.MX8MP Hardware Design Guide, specifically Chapter 7.8, "Heat Sink Considerations", which provides detailed information and design recommendations for thermal management and heat sink implementation on the i.MX8MP. This chapter covers the key requirements and considerations needed to ensure proper thermal performance and reliable operation of the device. Best regards, Chavira