由于NXP之前使用的git服务器codeaurora已经永久性关闭，本文说明针对S32G如何迁移到github服务器的方法。 目录 1    服务器迁移情况说明... 2 2    参考文档和工具... 4 3    Yocto迁移说明... 4 3.1  从头开始新建Yocto工程说明... 4 3.2  对已有Yocto工程的迁移说明... 6 3.3  Migrate.sh的帮助... 7 4    独立编译迁移说明... 10 4.1  PFE独立编译... 11 4.2  IPCF独立编译... 13

this doc and project explain how to integrate S32G M stby demo and Linux STR demo to one demo to achieve the fast boot, chinese version: 本文说明如何在S32G2 RDB2板上搭建 一个M7 MCAL Standby Fullboot GPIO resume Demo加A53 Suspend to RAM的Demo，主要的 应用场景是电动汽车的快速启动。 G3与更新版本BSP的支持情况与此类 似，不再另外说明，客户可以自行参考开发。 请注意本文为培训和辅助文档，本文不是 官方文档的替代，请一切以官方文档为准。     目录 1 参考资料说明与声明 .................................................. 2 2 STBY+STR的硬件注意点 .......................................... 3 3 修改M7 MCAL Standby Demo代码 ............................ 5 3.1 Clock相关修改 ........................................................ 5 3.2 MCU相关修改 ......................................................... 5 3.3 UART Clock相关修改 ............................................. 7 3.4 Port相关修改 .......................................................... 7 3.5 I2C相关修改 ........................................................... 7 3.6 实现M核进入STDY状态等待功能 ........................... 8 3.7 Main函数的修改 ..................................................... 8 4 修改Bootloader工程来支持同时Boot M/A核Demo ... 10 4.1 I2C Clock相关修改 ............................................... 10 4.2 Port相关修改 ........................................................ 11 4.3 其它修改 ............................................................... 12 5 修改A53 Linux代码 .................................................. 13 6 Demo 运行测试 ........................................................ 13 6.1 硬件连接 ............................................................... 13 6.2 镜像烧写 ............................................................... 13 6.3 Demo运行 ............................................................ 14 7 工程发布包............................................................... 15 8 未来开发建议 ........................................................... 17 8.1 M/A核同步机制 ..................................................... 17 8.2 功能安全与信息安全 ............................................. 17 9 遗留问题 .................................................................. 17 9.1 IPCF STR支持 ...................................................... 18 9.2 PFE Slave STR支持 ............................................. 18 注意以下说明与声明： 说明： 汽车网关有快速启动要求，而电动车因为驻车时有更大的电池提供待机电源，所以希望是使 用Linux 的suspend to ram 的功能来实现Linux 的快速启动，而在S32G 上则需要考虑将M 核的 Standby 功能 与A 核的STR 功能 结合起来，目前可用的资源包括：  从BSP32 起支持ATF，可以支持Linux 端的STR 功能，文档《S32G_Linux_STR_V1-*.pdf》 (John.Li)说明linux STR 的原理和与M7 Standby Demo 结合时所需要的修改。  NXP 的M7 内部standby demo，可以支持M 核端的standby 功能，支持full boot 和standby ram boot。文档《S32G_Standby_Demo_V4-*.pdf》(John.Li)有详细说明，本文使用MCAL full boot+GPIO resume Demo。  本Demo 与本文主要说明如何将这两个Demo 结合起来，形成一个整体的Demo。  由于需要Boot M 核加A 核，所以也需要Bootloader 工程的支持，文档 《S32G_Bootloader_V1-*.pdf》(John.Li)说明了如何创建一个MCAL sample 加Linux 的 Bootloader 工程。 声明： 请注意：  M7 standby demo 本来为NXP 内部Demo，不保证运行质量。而Linux 本身也是reference software。  Linux STR 本身会引入比较复杂的电源管理切换，也会引起系统级的不稳定性。  本文所说的方法也是实验性质，不保证运行质量。 所以客户应该谨慎决定其产品功能并自行保证其产品质量，本文及本Demo 仅为Demo 性质。   This article explains how to build a demo of M7 MCAL Standby Fullboot GPIO resume Demo plus A53 Suspend to RAM on the S32G2 RDB2 board. The main application scenario is the quick start of electric vehicles. The support situation of G3 and the newer version of BSP is similar to this, no further explanation is given, customers can refer to it for development by themselves.  Please note that this article is a training and auxiliary document. This article is not a substitute for the official document. Please refer to the official document. Contents 1    Reference materials and statement 2 2    STBY+STR hardware checkpoints. 3 3    Modified M7 MCAL Standby Demo codes. 5 3.1  Clock modification. 5 3.2  MCU related modification. 6 3.3  UART Clock related modificaiton. 7 3.4  Port related modification. 8 3.5  I2C related modification. 8 3.6  Enable the waiting function of M core entering STDY. 9 3.7  Main function modification. 9 4    Modify the Bootloader project to support simultaneous M/A core demo  11 4.1  I2C Clock related modification. 11 4.2  Port related modifcaiton. 11 4.3  Others modificaiton. 13 5    Modify A53 Linux codes. 14 6    Demo running and testing. 14 6.1  Hardware link. 14 6.2  Image burning. 14 6.3  Demo running. 15 7    Project release package. 16 8    Suggestion for the future development 17 8.1  M/A core sync mechanism.. 17 8.2  Function safety and Information security. 17 9    Remaining issues. 18 9.1  IPCF STR support 18 9.2  PFE Slave STR support 18   as need refer:   S32G_Linux STR This doc explain S32G Linux STR details and modify to integrate with M stdy demo https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/S32G-Linux-STR/ta-p/1652680 S32G Standby Demo the project build a new Mcal standby demo and explain its details https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/S32G-M-kernel-Standby-demo-and-how-to-porting-to-Mcal/ta-p/1556313 S32G Boot customization doc how to run bootloader to run mcal&linux https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/S32G-Bootloader-Customzition/ta-p/1519838

This doc explain the S32G STR feature details and how to modify it to integrate with M kernel STBY demo, to achieve the fast boot. chinese version: 本文说明S32G A53核STR详细情况及定 制，定制部分说明如何与M7 standby demo结 合，来实现整个产品的快速启动。 请注意本文为培训和辅助文档，本文不是 官方文档的替代，请一切以官方文档为准。 目录 1 参考资料说明 ............................................................. 2 2 Demo创建运行过程 ................................................... 2 3 Linux STR流程 ........................................................... 2 4 ATF Suspend流程 ..................................................... 5 4.1 Suspend流程 .......................................................... 5 4.2 Full boot resume流程 ............................................. 7 5 定制修改 .................................................................... 9 5.1 ATF中实现主核切换为M7 ....................................... 9 5.2 ATF中去掉PMIC与I2C4 ....................................... 11 5.3 ATF中去掉wkpu驱动 ............................................ 17 5.4 Uboot中去掉PMIC与I2C4 ..................................... 18 5.5 Kernel中去掉I2C4 ................................................ 19 6 发布 ......................................................................... 20   This article explains the details and customization of S32G A53 core STR. The customization part explains how to combine with M7 standby demo to realize the quick start of the whole product. Please note that this article is a training and auxiliary document. This article is not a substitute for the official document. Please refer to the official document. Contents 1    Reference materials. 2 2    STR Demo. 2 3    Linux STR call flow.. 2 4    ATF Suspend call flow.. 5 4.1  Suspend flow.. 5 4.2  Full boot resume flow.. 7 5    Customization. 9 5.1  The STR main core is switched to M7 in ATF. 9 5.2  ATF remove PMIC and I2C4. 11 5.3  ATF remove wkpu driver 17 5.4  Uboot remove PMIC and I2C4. 18 5.5  Kernel remove I2C4. 19 6    Release. 20

Memtool is a useful debug tool which can read/write some i.MX register. It is default supported in Linux while not supported in Android. This article describse how to integrate memtool into i.MX8MM Android 12 platform, which is also similar in other i.MX new android platform.  

i.MX RT1170 crossover MCUs are part of the Edge Verse™ platform and are setting speed records at 1 GHz. This ground-breaking family combines superior computing power and multiple media capabilities with ease-of-use and real-time functionality. For reducing the overall system cost, RT117x didn't have embeded flash, need external Flash as program storage and XIP place, NXP and third party like IAR, KEIL and Segger all provide mature tool to make Nor Flash‘s programing with their own flashloader, can fulfillment most customer’s application requirement, but still some users need to customize the flash programing algorithm due to programing speed optimization and difference of the nor Flash from different vendor and, such as SFDP support, QE bit's position, default sector size, DDR/OPI/QPI feature, default 3 Bytes/4 Bytes mode and also operating sequence, but the default Flashloader is based on the ROM API, it's hard to debug and customize as there is no source code. This reference demo will use source code Flash operation API instead of ROM API. In addition, it also add two new useful feature, first one is current Flashloader framework can't support some nor flash which need pre-configuration, such as Cypress's S25HL01GT, its sector size is not unified, need to config additionally. This reference demo give some function interface to implement it with 3 bytes/4bytes command mode and DDR/SDR mode, it also improve the original framework by adding read-erase-write demonstration code, which can help user to verify their customized Flashloader without need to copy to IDE every time, improve the efficiency greatly. Second advantage is it can support download flow‘s log generation, by default there is no log info in overall download flow, hard to locate which step(get configure/init/erase/program/verify) the failure occur, this demo code add log function to record every detailed download step, by which users can optimize their download speed, it's helpful for mass production. Developers can also debug and customize depend on their own specific requirement and different nor Flash.

EEPROM selection guide for serial RCON boot. On S32G reference manual, we only ask customer to make sure I2C address of EEPROM is 0xA0, no others requirement. Actually, S32G only supports EEPROM with one 8-bit address byte. For high capacity EEPROM such as AT24C64D@8K bytes, which need two 8-bit word address bytes. Can’t be supported by S32G ROM.   AT24C64D.pdf         AT24C01 has been validated on S32G EVK board, which need one word address byte AT24C01.pdf   Thanks, Lambert

This document introduce how to do LPDDR4 DQ Swapping in S32G platform.

FAST BOOT FOR lx2160 IN adas •Objective To speed ​​​​up bringup of LX2 chip-based systems •Pain Points to Address The bringup time is much longer than 3s, which is very sensitive in ADAS systems or time-sensitive systems. •Value Proposition / Key Features The guide can help customers shorten uboot time from 5s to less than 1.5s, saving more than 70% bootup time. •Deliverables Demo based on LX2160ARDB board. Reference codes and patches. Guide for Fast boot document. Fast boot 广泛用于嵌入式设备，现以lx2160ardb板为例进行相关探索。 启动流程： 优化思路： 1.适当提高FSPI时钟速率 diff --git a/lx2160asi/flexspi_divisor_32.rcw b/lx2160asi/flexspi_divisor_32.rcw index 422139c..0f8d5c9 100644 --- a/lx2160asi/flexspi_divisor_32.rcw +++ b/lx2160asi/flexspi_divisor_32.rcw @@ -7,8 +7,10 @@ * Modify FlexSPICR1 register, to increase FlexSPI clock closer to 50MHz, * with divisor value as 32. * => 750 * 2 / 32 ==> 46.875MHz + *write 0x1e00900,0x00000013 + * 0f -12 =125M */ .pbi -write 0x1e00900,0x00000013 +write 0x1e00900,0x0f .end ​ 2.关键路径优化 固化spd参数 固化ddrc参数 BL33 裁剪 详细patch和测试结果参考附件。

本文说明在S32G2 RDB2板上实现LLCE to PFE Demo的搭建过程。本Demo目前包括：  CANtoEth：CAN0发送，用硬件回环到 CAN1接收，然后通过PFE_EMAC1， 再通过RGMII接口发出。  CANtoEth：CAN0发送，用硬件回环到 CAN1接收，然后通过PFE_EMAC1， 再通过SGMII接口发出。  EthtoCAN：PC通过PFE_EMAC1的 RGMII发出，接收到CAN1，再硬件 回环到CAN0  CANtoCAN Logging to Eth: CAN0发 送，用硬件回环到CAN1接收，然后 通过PFE_EMAC1，再通过SGMII接 口发出,同时LLCE内部硬件把CAN1 再发送到CAN15_TX，再用硬件回环 到CAN14_RX 软件版本为 RTD3.0.0+LLCE1.0.3+PFE0.9.6/0.9.5。

This doc explain how to optimize the Linux boot time, Contents as follows: 目录 1 默认BSP28 Linux内核的启动时间分析和优化方向 ..... 2 2 UBoot的优化 .............................................................. 3 2.1 缩小Uboot的DTS尺寸 ............................................ 3 2.2 缩小Uboot的尺寸 .................................................... 4 2.3 去掉等待3S输入时间 .............................................. 4 2.4 配合内核修改的Uboot参数 ..................................... 4 2.5 关闭串口调试信息 .................................................. 5 2.6 MMC read的方法来读取内核和DTB ....................... 5 3 Kernal的优化 ............................................................. 5 3.1 DTB中去掉不用的驱动和代码 ................................. 5 3.2 内核中去掉不用的平台与驱动及相关代码 ............... 6 3.3 内核中去掉不用功能，缩小内核大小 ...................... 7 3.4 去掉initramfs支持 ................................................... 7 3.5 关闭调试信息 .......................................................... 7 3.6 提前eMMC驱动加载时间 ........................................ 7 3.7 将Kernel与DTB打包在一起..................................... 8 4 Rootfs+应用程序的优化 ............................................. 8 5 最终全部启动时间比较 ............................................. 12

This doc expain how to use eMMC from user space, contents as follows: 目录 1 eMMC的分区情况 ...................................................... 2 2 S32G+BSP29上默认的eMMC启动 ............................ 3 2.1 eMMC硬件设计 .................................................. 3 2.2 eMMC的镜像烧写办法与启动 ............................. 6 2.3 增加MMC内核测试工具 .................................... 10 3 eMMC GP功能的测试 .............................................. 10 3.1 eMMC GP功能的说明 ....................................... 10 3.2 eMMC GP功能的测试 ....................................... 11 4 eMMC RPMB功能的测试 ......................................... 13 4.1 eMMC RPMB功能的说明 ................................. 13 4.2 eMMC RPMB功能的测试 ................................. 15

This doc explain how to use S32G design studio and SDK, contributed by Gary.Yuan yuan.yuan@nxp.com.

功能需求 RT117X系列MCU在汽车和工业类产品中有广泛应用，有很多客户对LIN通讯有需求，RT1176有12路独立的LPUART接口，最大支持的波特率能支持到20M，而且每一路都支持Break发送和中断接收，可以用来配合定时器实现LIN的主机和从机通讯。但是目前RT117X的EVK板没有放置LIN的收发器，SDK也没有相关LIN的示例代码和LIN协议栈支持，所以本示例目的是移植KW36工程中的LIN 2.1版本的代码到RT1176 EVK板子上，在硬件上通过跳线将LIN Master主节点和 Slave从节点的LPUART TX/RX线连接到FRDM-KW36板载的LIN收发器TJA1027上，分别实现LIN 2.1版本协议栈在Master和Slave节点的通讯功能验证，同时还需支持Auto Baud Rate自动波特率调整。为客户做二次开发或者移植用户自己的LINstack提供底层驱动，提高开发效率。 代码包软件   RT1176 LIN Master节点代码：RT1170_LIN_Porting_Demo_Master.7z RT1176 LIN Slave节点代码(支持自动波特率😞 RT1170_LIN_Porting_Demo_Slave_with_Auto_Baud_Rate.7z 配置FRDM-KW36板载LIN 收发器的代码: KW36_LIN_PHY_Board_Init.7z 硬件Setup   MIMXRT1170-EVK： 2pcs，分别用作LIN Master节点和Slave节点。 FRDM-KW36：2pcs， 分别用作Master节点的收发器，和 Slave节点的收发器 下图是系统连接，2块RT1170 EVK板分别和2块FRDM-KW36板通过Arduino接口连接在一起，然后将两块KW36之间的LIN收发器通过 J13 连接在一起，需要使用外部12V adapter为FRDM-KW36供电，否则板上的LIN收发器无法工作。特别强调的是，如果需要使能自动波特率检测的话，还需要将Slave节点RT1176 Arduino接口的J9-Pin2引脚连接到RT1176 Arduino接口的J9-Pin12引脚，作为Timer 脉冲捕捉的输入，即可完成系统硬件的setup。   软件Setup：   在以上硬件连接完成后，按照如下步骤下载对应软件： - Step1: 下载KW36_LIN_PHY_Board_Init.7z代码到两块FRDM-KW36板子上；  该代码中主要实现两个功能：第1个拉高板子的PTC5引脚，唤醒LIN收发器TJA1027。第2个将PTA18引脚配置成disable高阻状态。如果该引脚作为GPIO输出或者LPUART TX功能，会导致LIN slave回应数据出错(bit位丢失或者错误)。究其原因猜测应该是短路导致，当这个引脚作为GPIO输出或者LPUART TX功能，内部会有上拉，当RX1176 TX引脚输出Low时，由于电路上没有串联电阻(板子上使用的0Ω)，会导致引脚上出现大电流。尤其是第2个点，花费了很多时间去查这个问题，从波形去看，是有数据输出的，但只是数据不对，很具有迷惑性。当然如果客户是自己打的板子，板子上已经有LIN收发器就不需要这一步，直接跳到Step2即可。 - Step2: 下载RT1170_LIN_Porting_Demo_Master.7z代码到作为Master节点的IMRT1176-EVK板； - Step3: 下载RT1170_LIN_Porting_Demo_Slave_with_Auto_Baud_Rate.7z代码到作为Slave节点的IMRT1176-EVK板，如果需要使能自动波特率调整，需要配置宏linUserConfigSlave.autobaudEnable = true; 代码中默认是打开的。 实验结果   打开两个IMRT1176-EVK板串口，波特率配置115200，单击RT1176 Master节点上的按键SW7，便可以启动Master节点开始发送数据，通讯波形和串口打印信息如下两张图所示。   代码移植的几个难点   1. LIN通讯协议栈的调度流程的理解，包括Wakeup段，Break段，Sync段，PID段，Data段的状态切换和跳转，每个段的超时监测和错误处理，其核心思想有两个：一个在于LIN的RX引脚要不断去monitor TX引脚的状态，然后去切换状态机，具体调度的流程在后文会详细介绍，这里不展开。第二个是准确获取在每个段的定时器时间，尤其是超时超过一个overflow周期的情况，需要对timerGetTimeIntervalCallback0函数有理解。 2. 自动波特率调整功能的支持，该功能的原理是测量SYNC段的8个脉冲的脉宽，如果每个脉宽差异在2%范围内，再根据脉冲宽度去判断对应的波特率。在原来KW36的代码中是使用TPM的Overflow中断来作为计时，Edge中断来触发，而RT1176没有TPM，只能使用Qtimer (Qtimer功能上要更强于TPM)，但是不巧的是Qtimer不支持Overflow中断(参见芯片ERRATA 050194)，所以只能使用compare中断来实现类似的功能，而原有的计时定时计算都是基于overflow的，因此就需要对定时器部分的代码做大范围的更改。 应用中考虑到timerGetTimeIntervalCallback0函数在自动波特率调整时和超时监测处理时的一致性，最好使用同一个Timer的同一个channel，这就需要这个Timer既支持普通的定时中断模式，又支持input capture功能。对于TPM来说，是无法实现的因为两次在寄存器配置上时互斥的, 参见下图。幸运的是Qtimer支持这个feature，只是需要根据SDK代码做些配置 前面提到，需要QTimer支持input capture功能, 触发信号是LPUART_RX引脚的信号，需要硬件loop到Qtimer支持的硬件引脚上，对于KW36来说，只需要把这两个物理引脚连接在一起即可，但对RT1176来说, 只有这一步还不行，还需要对XBAR进行配置，将Qtimer的TIMER 1的触发引脚(合计有4个物理引脚)Link到QTIMER对应的Channel上，因为RT1176有4个QTimer，每个Qtimer有4个通道，标称的Qtimer trigger pin有4个，那具体哪个pin触发哪个QTimer的哪个通道，是需要配置的。如果客户没有使用过XBAR配置起来有难度，还好MCUXpresso config tool支持配置，可以简便的完成配置。示例代码和触发关系如下，如果实际硬件使用的物理引脚有区别，需要对应修改。 RT的XBAR功能非常强大，或许可以不使用外部的物理连线，直接将Qtimer的出发引脚的信号直接在内部Loop到LPUART_RX引脚，这样就更加灵活，此处只提供一个思路，不再进一步延伸。 IOMUXC_GPR->GPR15 = ((IOMUXC_GPR->GPR15 & (~(IOMUXC_GPR_GPR15_QTIMER4_TRM1_INPUT_SEL_MASK | IOMUXC_GPR_GPR15_QTIMER4_TRM2_INPUT_SEL_MASK)))/*Mask bits to zero which are setting*/ | IOMUXC_GPR_GPR15_QTIMER4_TRM1_INPUT_SEL(0x00U) /*QTIMER4 TMR1 input select: 0x00U*/ | IOMUXC_GPR_GPR15_QTIMER4_TRM2_INPUT_SEL(0x00U) /*QTIMER4 TMR2 input select: 0x00U*/ ); 4. 在状态机切换和超时以及错误处理过程中，经常会看到两种模式Sleep模式和Idle模式，区别是什么呢？ LIN_LPUART_GoToSleepMode: 函数会关闭Break中断，RX接收中断，帧错误中断，保留RX边沿 中断; LIN_LPUART_GotoIdleState 函数会打开Break中断，RX接收中断，帧错误中断，关闭RX边沿中 断; 实际通讯波形   Master作为Subscribe角色时，发送Header，由Slave发送Respone Master作为PUBLIC角色时，同时发送Header，以及Respone 按照调度表依次发送LI0_lin_configuration_RAM数组定义的PID数据 static uint8_t LI0_lin_configuration_RAM[LI0_LIN_SIZE_OF_CFG]= {0x00, 0x30, 0x33, 0x36, 0x2D, 0x3C, 0x3D ,0xFF}; Qtimer准确读取wake up信号的脉冲宽度 Slave使能Auto baud rate后读取到的每个脉冲宽度数据 免责声明： THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND *ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED *WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, *INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUTNOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, ORPROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY,WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE)

引言 FRDM-KW36包含带有32 kHz晶体振荡器的RTC模块。此模块为以极低功耗模式运行的MCU生成32 kHz时钟源。该振荡器包括一组用作CLOAD的可编程电容器。改变这些电容器的值可以改变振荡器提供的频率。 此可配置电容的范围为0 pF（禁用电容器组）至30 pF，步长为2 pF。 这些值是通过组合启用的电容器获得的。可用值为2 pF，4 pF，8 pF和16 pF。可以完成这四个数值的任意组合。如果可以使用外部电容器，建议禁用这些内部电容器（清除RTC控制寄存器SFR中的SC2P，SC4P，SCS8和SC16位）。 要调整振荡器提供的频率，必须首先能够测量该频率。使用频率计数器将是非常好的，因为它提供了比示波器更精确的测量。您还需要输出振荡器频率。要输出振荡器频率，以任意一个蓝牙演示应用程序为例，您应该执行以下操作： 调整频率示例 本示例将利用Connectivity Software Stack中的心率传感器演示（freertos版本），并假定开发人员具有从SDK到IDE导入或打开项目的知识。 1.从SDK中打开或克隆“心率传感器”项目。 2.在工作区的board文件夹中找到board.c和board.h文件。 3.如下图所示在board.h文件中声明一个void函数。该函数将RTC管脚复用设置为输出到PTB3并能够测量频率。 4. 如下所示在board.c文件中开发BOARD_EnableRtcClkOut函数。 5. 代码如下： 6. 在BOARD_BootClockRUN（board.c文件）之后立即在hardware_init函数中调用BOARD_EnableRtcClkOut函数。 7. 在工作区的board文件夹中找到clock_config.c文件。 8. 在文件顶部添加以下定义。 9. 在BOARD_BootClockRUN函数内部（也在clock_config.c文件中）搜索对函数的CLOCK_CONFIG_EnableRtcOsc调用，然后通过上述任意定义来编辑变量。 10. 最后，在项目源文件夹中的“ preinclude.h”文件中禁用低功耗选项和LED支持： 此时，您可以在PTB3中进行测量，并使用频率计数器进行频率调整。每次对电路板进行编程时，都需要执行POR以获得正确的测量。下表是从FRDM-KW36板版本B获得的，可用作调整频率的参考。 请注意，电容不仅由启用的内部电容组成，还包括封装，内部走线，芯片焊盘和PCB走线中的寄生电容。因此，尽管下面给出的参考测量值应接近实际值，但您还应该在电路板上进行测量，以确保频率是专门针对您的电路板和布局进行调整的。 Labels：KW   KW35 | 36 kinetis kw36a

这篇文章通过覆盖与GFSK （通用频移键控）通信并行的 低功耗蓝牙 多节点连接，提供了混 合应用程序（ W ireless UART + GFSK Advertising ）的示例。这是 SDK 的另一个示例，其中我 们定义了 混合应用程序，用于与 GFSK 通信并行进行蓝牙 LE 广告和扫描。 Products Product Category NXP Part Number URL MCU KW36/35/34 https://www.nxp.com/products/wireless/bluetooth-low-energy/kw36-35-34-arm-cortex-m0-pluskinetis-kw36-35-34-bluetooth-low-energy-32-bit-mcus-nxp:KW36-35 MCU KW39/38/37 https://www.nxp.com/products/wireless/bluetooth-low-energy/kw39-38-37-32-bit-bluetooth-5-0-long-range-mcus-with-can-fd-and-lin-bus-options-arm-cortex-m0-plus-core:KW39-38-37   Tools NXP Development Board URL FRDM-KW36 Freedom Development Kit https://www.nxp.com/design/development-boards/freedom-development-boards/mcu-boards/frdm-kw36-freedom-development-kit-for-kinetis-kw36-35-34-mcus:FRDM-KW36 FRDM-KW38 Freedom Development Kit https://www.nxp.com/design/designs/freedom-development-kit-for-kw39-38-37-mcus:FRDM-KW38   SDK SDK Version URL MCUXpresso SDK Builder https://mcuxpresso.nxp.com/en/welcome

Overview   The RDS12VR is a solution engineered for window lift, power windows, and sun roof systems. Developed in partnership with Tongji University and based on the 16-bit S12 MagniV® S12VR mixed-signal microcontrollers, the RDS12VR offers control by multiple LIN salve nodes or LIN master node, through the easy-to-control Graphics User Interface (GUI). The RDS12VR reduces unnecessary external components, lowers the total bill of material (BoM), improves system quality, and saves space in automotive applications through a smaller PCB. The RDS12VR solution includes hardware for real door/window in-vehicle applications, as well as software including anti-pinch algorithms and low-level S12VR drivers for reducing time to market. Block Diagram   Products Product Features S12VR  16-bit S12 MagniV® S12VR mixed-signal microcontrollers, efficient and scalable relay driven DC motor control solution   Features Features   Window manual/automatic up/down, automatic up/down with stop function Anti-pinch in both manual/automatic mode, anti-pinch region and force can be adjusted Stuck detection out of anti-pinch region, motor overload protection Soft stop when window is close to the top/bottom Self learning, calibration by updating the window/motor parameters stored in EEPROM Use hall sensor as well as current sense to judge anti-pinch in algorithm Power   Fault diagnosis, indicating low voltage, over voltage/current/temperature etc. Low power mode (leveraging S12VR low power mode) to reduce power consumption GUI Easy-to-control GUI, set the parameters and get the status Window lift can be controlled either by multiple LIN salve nodes or LIN master node, through GUI Functional Safety Able to comply with relevant content in US Federal Motor Vehicle Safety FMVSS No. 118 standard Document DRM160, Window Lift and Relay Based DC Motor Control Reference Design Using the S12VR Microcontrollers     

  Overview NXP solutions enable AD/DC chargers in hybrid electric vehicles (HEV). The AD/DC charger interfaces with the battery management system to ensure a proper charge of electricity of the cells until it fulfills high-voltage (HV) requirements. Our comprehensive portfolio provides the critical building blocks for high-performance, efficient and safe pawer management control system for electric traction motors.   Use Cases This solution can be applied and various sectors of the industry, specially in the automotive field. NXP solutions enable Hybrid and Electric Vehicles applications as: Converters and Chargers Stop/Start Systems Power inverters   Block Diagram Products Category MCU Product URL S32K144EVB: S32K144 Evaluation Board  Product Description The S32K144EVB is a low-cost evaluation and development board for general purpose automotive applications.   Category Safety SBC Product URL 1 FS6500: Grade 1 and Grade 0 Safety Power System Basis Chip with CAN Flexible Data Transceiver  Product Description The NXP® FS6500 system basis chip (SBC) provides power to MCUs and optimizes energy consumption through DC/DC switching regulators, linear regulators, and ultra-low-power saving modes.   Category RTC Product URL PCA85073A: Automotive tiny Real-Time Clock/Calendar with alarm function and I2C-bus  Product Description The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption.   Category Serial Interface Product URL  MC33660: ISO K Line Serial Link Interface  Product Description The NXP® MC33660 is a serial link bus interface device designed to provide bi-directional half-duplex communication interfacing in automotive diagnostic applications.

  Overview The growth in automotive emerging markets has increased the need for simple and lower cost instrument cluster solutions. NXP® offers several cost-effective solutions based on its complete range of instrument cluster processors, from the 8-bit S08 family to industry-leading 16-bit S12 architecture, integrating required interface features that include the optimal set of on-chip features, package and memory options. To further help your instrument cluster designs, NXP offers an extensive suite of hardware and software development tools. i.MX8X have similar CPU performance with i.MX6 but 2 times GPU performance. NXP provide function safety ASIL-B cluster solution with hardware/software support. i.MX8X has embedded VPU which can support video stream decoding from IVI to cluster. And also full solution for AVB/TSN in car network.   Block Diagram Products Category MCU/MPU Product URL 1 i.MX 8X Family – Arm® Cortex®-A35, 3D Graphics, 4K Video, DSP, Error Correcting Code on DDR  Product Description 1 Extending the scalable range of the i.MX 8 series, the i.MX 8X family is comprised of common subsystems and architecture from the higher-end i.MX 8 family, establishing a range of cost-performance scaling with pin-compatible options and a high level of software reuse. Product URL 2 S32K144EVB: S32K144 Evaluation Board  Product Description 2 The S32K144EVB is a low-cost evaluation and development board for general purpose automotive applications.   Category Power Management Product URL  PF8100-PF8200: 12-channel Power Management Integrated Circuit (PMIC) for High-Performance Processing Applications  Product Description The PF8100/PF8200 PMIC family is designed for high-performance processing applications such as infotainment, telematics, clusters, vehicle networking, ADAS, vision and sensor fusion.   Category Transceiver Product URL 1 TJA1042: High-speed CAN transceiver with standby mode  Product Description 1 The TJA1042 high-speed CAN transceiver provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. Product URL 2 TJA1101: 2nd generation Ethernet PHY Transceivers - IEEE 100BASE-T1 compliant  Product Description 2 TJA1101 is a high-performance single port, IEEE 100BASE-T1 compliant Ethernet PHY Transceiver.   Category Peripherals Product URL1 PCA9538: 8-bit I²C-bus and SMBus low power I/O port with interrupt and reset  Product Description 1 The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of II2CC-bus I/O expanders. Product URL 2 PCA9955BTW: 16-channel Fm+ I²C-bus 57 mA/20 V constant current LED driver  Product Description 2 The PCA9955B is an I2C-bus controlled 16-channel constant current LED driver optimized for dimming and blinking 57 mA Red/Green/Blue/Amber (RGBA) LEDs in amusement products. Product URL 3 PCT2075: I2C-Bus Fm+, 1 Degree C Accuracy, Digital Temperature Sensor And Thermal Watchdog  Product Description 3 The PCT2075 is a temperature-to-digital converter featuring ±1 °C accuracy over ‑25 °C to +100 °C range. Product URL 4 PCA85073A: Automotive tiny Real-Time Clock/Calendar with alarm function and I2C-bus  Product Description 4 The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption.

  Overview   Vehicle-to-Everything (V2X) technology enables cars to communicate with their surroundings and makes driving safer and more efficient for everyone. By making the invisible visible, V2X warns the driver of road hazards, helping reduce traffic injuries and fatalities. In addition to improving safety, V2X helps to optimize traffic flow, reduce traffic congestion and lessen the environmental impact of transportation. V2X is a key component for full autonomous driving. V2X need message package signing & verification which need high CPU loading if used CPU. Qualcomm recommend their customers to use NXP i.MX8X/XL which have HSM as their modem’s companion chip. Two major components in the system: RSU (Road Side Unit) and OBU (On Board Unit). Both have similar system design, with minor differences. Block Diagram   Product Category MCU/MPU Product URL 1 i.MX 8X Family – Arm® Cortex®-A35, 3D Graphics, 4K Video, DSP, Error Correcting Code on DDR  Product Description 1 Extending the scalable range of the i.MX 8 series, the i.MX 8X family is comprised of common subsystems and architecture from the higher-end i.MX 8 family, establishing a range of cost-performance scaling with pin-compatible options and a high level of software reuse. Product URL 2 https://www.nxp.com/design/development-boards/automotive-development-platforms/s32k-mcu-platforms/s32k144-evaluation-board:S32K144EVB  Product Description 2 The S32K144EVB is a low-cost evaluation and development board for general purpose automotive applications.   Category Transceivers Product URL 1 TJA1051: High-speed CAN transceiver  Product Description 1 The TJA1051 is a high-speed CAN transceiver that provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. Product URL 2 TJA1101: 2nd generation Ethernet PHY Transceivers - IEEE 100BASE-T1 compliant  Product Description 2 TJA1101 is a high-performance single port, IEEE 100BASE-T1 compliant Ethernet PHY Transceiver.   Category Power Management Product URL PF8100-PF8200: 12-channel Power Management Integrated Circuit (PMIC) for High-Performance Processing Applications  Product Description The PF8100/PF8200 PMIC family is designed for high-performance processing applications such as infotainment, telematics, clusters, vehicle networking, ADAS, vision and sensor fusion.   Category Secure Element Product URL SXF1800: Secure Element IC for V2X Communication  Product Description SXF1800 is based on highly secure microcontroller used also to protect mobile payments, providing highest proven assets protection.   Category I2C interface Product URL 1 PCA9538: 8-bit I²C-bus and SMBus low power I/O port with interrupt and reset  Product Description 1 The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of II2CC-bus I/O expanders. Product URL 2 PCT2075: I2C-Bus Fm+, 1 Degree C Accuracy, Digital Temperature Sensor And Thermal Watchdog  Product Description 2 The PCT2075 is a temperature-to-digital converter featuring ±1 °C accuracy over ‑25 °C to +100 °C range. Product URL 3 PCA85073A: Automotive tiny Real-Time Clock/Calendar with alarm function and I2C-bus  Product Description 3 The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption.   Category Wi-Fi Product URL 88W8964: 2.4/5 GHz Dual-Band 4x4 Wi-Fi® 5 (802.11ac) Access Solution  Product Description The 88W8964 features 160MHz bandwidth and Multi-User Multi-Input Multi-Output (MU-MIMO) while achieving 2.6 Gbit/s peak data rate for high speed, secure, and reliable access points and smart gateways.   Category V2X Modem Product URL RoadLINK® SAF5400 Single Chip Modem for V2X  Product Description The RoadLINK SAF5400 is an automotive-qualified single chip DSRC modem for V2X applications. The SAF5400 modem is able to receive and verify up to 2000 messages per second.

  Overview   Since 1996 in EU and since 2000 in Europe, the OBD (On-Board Diagnostics) is mandatory for all the cars manufactured. This protocol is used to verify the smoke emissions and check if any car is between the parameters stablished in every country. Also detect engine failures without need to check the engine manually, identifying accurately the problems reducing the repairing time and cost. OBD-II is a sort of computer which monitors emissions, mileage, speed, and other useful data. OBD-II is connected to the check engine light, which illuminates when the system detects a problem. Scan tools can be used to make sense of the diagnostic trouble codes and collect data on other aspects of vehicle’s performance.   Use Cases Hotspot in the CAR Geofences and speed limits Driving habits tracking Insurance and Rental Entertainment   Block Diagram   Products Category Name MCU Product URL 1 MIMXRT1050-EVK: i.MX RT1050 Evaluation Kit Product Description 1 The i.MX RT1050 EVK is a 4-layer through-hole USB-powered PCB. At its heart lies the i.MX RT1050 crossover MCU, featuring NXP’s advanced implementation of the Arm® Cortex®-M7 core.   Category Name Serial Link Bus Product URL 1 KIT33660EFEVBE: Evaluation Kit - MC33660, ISO K Line Serial Link Product Description 1 The KIT33660 evaluation board supports the MC33660, a serial link bus interface device designed to provide bi-directional half-duplex communication interfacing in automotive diagnostic applications.   Category Name Transceiver Product URL 1 TJA1100HN: Evaluation Board, TJA1100HN 100BASE-T1 PHY Transceiver Product Description 1 The TJA1100HN customer evaluation board is a low-cost hardware development tool which supports the functional evaluation of the TJA1100HN 100BASE-T1 PHY transceiver.