[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-345148 

    Attached is the SDHC DMA read supported patch, it is based on WCE600_MX51_ER_1104, it was verified on iMX51 EVK board. The SDHC DMA read can reduce the NK copy time, in this way it can speed up the WinCE boot.

Please join us for a webinar tomorrow - July 30 at 10 AM CDT. Register here: https://info.cranksoftware.com/resources/modernize-embedded-graphics-ultra-low-power-ui-nxpcranksoftware NXP’s i.MX 7ULP applications processor, alongside Crank's Storyboard GUI design and development software, gives embedded teams the best of both worlds – rich 2D/3D performance with MCU-level low power. Join Brian Edmond and Nik Jedrzejewski to get a technical deep dive into the i.MX 7ULP and Storyboard and learn: the latest trends in graphics for battery-powered devices hardware features of the i.MX 7ULP, including the Heterogeneous Domain Computing architecture how to leverage Storyboard's hybrid rendering solution when switching between 2D and 3D graphics to minimize power consumption   PANELLISTS Brian Edmond, President, Crank Software Nik Jedrzejewski, i.MX Product Manager, NXP

i.MX31 Lite Kit is a low cost development board developed by LogicPD OEM (an AMD company). Expanding on the Freescale offering of low-cost, high-performance application development kits, Freescale introduces the i.MX31 Lite Kit. Developed in collaboration with Logic Product Development, the Freescale i.MX31 Lite Kit provides a product-ready software and hardware platform for OEMs, ODMs, IDHs and independent developers. The i.MX31 Lite Kit enables rapid design of embedded products targeting the medical, industrial, wireless, consumer markets and general purpose markets. Leverage the power of our popular i.MX 31 multimedia processor in this cost-effective development solution. Features The Freescale i.MX31 SOM-LV is based on the i.MX31 multimedia applications processor running up to 532 MHz. LCD Display Connector Integrated LCD, touch, and backlight connector for Zoom Display Kits Audio Stereo input and output jacks Network Support One RJ45 Ethernet jack connector with magnetics (application/debug) PC Card Expansion CompactFlash® Type I card MMC/SD card ATA Support USB One USB 2.0 high-speed host interface One USB high-speed On-the-Go device interface Serial Ports 115.2kbps RS-232 debug serial port Software LogicLoader™ (bootloader/monitor) Windows® CE 5.0 BSP GNU cross development toolchain (compiler, linker, assembler, debugger) Cables Serial cable (null-modem) Ethernet crossover cable USB A to mini-B cable 5 volt power supply (with Europe, Japan, UK, & US adapters) Mechanical 146.1 mm wide x 158.8 mm long x 17.1 mm high RoHS Compliant More information [here.]

►How to Modify U-boot configure for change memory size to 512M •Only need change the u-boot memsize configure.      #define PHYS_SDRAM_1_SIZE                                                         (1u * 512 * 1024 * 1024) ► Use the performance tool Antutu test system in 512M and in 1024M.      * The statistic of Memory free after each test.     * The improve test is reduce GPU reserve physical memory size from 192M to 128M ► System boot-up reserve. (Static)     ► DMA allocate page and mem page.(Dynamic) ► Use for page alloc  < 292392K ► Browser speed     * The Browse speed in 512M is nearly with in 1024M ► Conclusion:   It is acceptable for this performance when use 512M physical memory.

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-343017 

 

You can power on/off i.MX31 PDK LEDs using U-Boot: u-boot> mw.b B6020000 FF Where B6020000 is the CPLD LED address and FF is the 8 bits hexadecimal value which will be displayed on LEDs.

Unpack the kit Boards CPU board Debug board Personality board Cables RS-232 serial cable Ethernet straight cable High-speed USB cables with mini AB connectors for OTG High-speed cable with standard A to mini B connectors Mini-USB adaptor Jack to RCA audio/video cable Power Supply 5.0V/2.4A universal power supply kit Paperwork CD-ROMs: Content CD End-User License Agreement Quick Start Guide (this document) Warranty card Freescale Support card Build the platform Connect the Personality board to Debug board. The personality board connects to the Debug board using a 500-pin connector. The connector is keyed to avoid misconnection, so there is only one way to connect these boards. Then, connect the CPU board to the underside of Debug board. Certify the version of bootloader When updating the BSP files of a system, it's recommended to rewrite a right version of bootloader in the target. Connect platform to PC To connect the 3-Stack platform to your host PC: Connect one end of an RS-232 serial cable (included in the kit) to a serial port connector (CON4) on the Debug board and connect the other end to a COM port on the host PC. Configure SW4-1 to ON. Make sure that SW4-8 is ON, to supply power to all three boards. Configure SW4-2 to OFF. Confirm that the Bootstrap switches (SW5–SW10) are set for external NAND boot (see more here) Connect the regulated 5V power supply to the appropriate power adapter. Plug the power adapter into an electrical outlet and the 5V line connector into the J2 (5V POWER JACK) connector on the Debug board. Start a serial console application on your host PC with the following configuration: Baud Rate 115200 Data Bits 8 Parity None Stop Bits 1 Flow Control None On the Debug board, switch the power switch (S4) to 1. The OS image pre-loaded in the 3-Stack board will boot and the debug messages from the bootloader should now appear on the serial console application on your PC See Also For a setting without the Debug board see Demonstration Platform.

Fixing Redboot RAM bug (CSD1 not activated) Introduction i.MX 35 PDK board has 256 MB of RAM, due to a bug in Redboot bootloader compiled for the board effectively there is only 128 MB available.This procedure fixes this bug to be able to use 256 MB of RAM. Redboot supporting 256 MB of RAM 1. Download the attached Redboot256.bin file. 2. Flash the new redboot image instead of the old one: Configuring RedBoot

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-342729 

Related links: i.MX Power Profiling System: Smart Current Sensor and Aggregator Shield  i.MX Power Profiling System: Aggregator Shield Details   i.MX Power Profiling: Triple-range Smart Current Sensor   Examples of boards instrumented with Smart Sensors. (Some close-ups will be added later.) One rail of the i.MX7ULP SOM is instrumented here. The sensor is immobilized with foam double sticky tape on top of the i.MX7ULP (trying to minimize contact to just that so the tape is more easily removed later). Immobilization is necessary in order to prevent ripping the resistor pads off the target board. The series resistor on the board is removed and the smart sensor is wired into place. Note here that the sensor is shorted so that the SOM will operate while the Smart Sensor being unpowered. The Smart Sensors MUST be powered via the Aggregator in order for the target board to operate. Otherwise, the target board will be starved of power and it will not operate unless all of the Smart Sensors connected to it are powered. An unpowered Smart Sensor presents an open circuit between the input and output terminals. Here are nine rails instrumented on the i.MX8QM CQC board. One rail Smart Sensor is in the bottom side, the rest are all on top. There is one double sticky taped to the back of the connectors at the back of the photo (the SCU supply, relatively low current, which can tolerate longer wires/series resistance). The rest are connected with 24 gauge wire, no longer than about half an inch long, to keep the series resistance low. The ground wire (center contact) can be a 30 gauge wire-wrap wire, which was used for all the grounds here. Note that the stiff connection wires allow the sensors to stand up in place, which is very helpful since there is no room to double sticky tape the sensors down. This board was not laid out with instrumentation in mind. Here is an i.MX8QXP CQC board with four rails instrumented. Two of the sensors are on top and two on the the bottom. They are not double sticky taped into place, but they are shielded with heat shrink tubing to prevent any contact with the target board. As above, 24 gauge wires are used for the current in/out lines, 30 gauge wire is used for all the ground contacts. Out of the frame, the four ribbon cables are bundled together to prevent the wires and sensors from moving too much. As above, the heavy wires have been kept as short as possible.

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-341570 

Features Additional Information Detailed Features List of i.MX31ADS board This is a development tool which is designed to run software applications designed for i.MX31 (MCIMX31) microprocessor unit (MPU). The MCIMX31ADS includes a baseboard, a CPU board, a power management board, an LCD display panel, a keypad, a NAND Flash card, an image sensor, etc. It supports application software, target-board debugging, or optional extra memory. Features Three board system Base board with display and interface connectors CPU board with i.MX31 ARM-11 MCU Power management board with MC13783 Atlas chip +5.0 VDC, 2.4 A universal power supply QVGA LCD display panel with touchscreen capability and LED backlight Keypad with 64 push button keys Image sensor camera Configurable intelligent management of system power Separate selectable voltage regulators for running the CPU board in stand-alone mode Two selectable system clock sources, 32.768 kHz and 26 MHz Onboard CPLD that manages memory-mapped expansion I/O, interrupts, and general-purpose I/O Multi-ICE debug support 32 MB of 16-bit NOR burst flash memory 16 MB of 16-bit PSRAM 128 MB of 32-bit DDR SDRAM memory Two sets of two memory card connectors, selectable as SD/MMC (on Base board) or MS (on CPU board), with card-sense functionality 1G-bit x8 data NOR Flash on a removable card SIMM card connector PCMCIA connector NAND Flash card connector Three RS-232 interfaces with DB-9 connectors driven by UART channels internal to the MX31. Each interface has two UART options and power up enable DIP switches. One supports DCE with optional full modem controls, another is DTE with optional full modem controls, and the third is DTE with RTS/CTS controls only. An external DUART configured as two RS-232 DCE channels (one DB9 connector, one 10-pin header) Two USB host transceivers, one full-speed and one high-speed, with standard USB host connectors Three USB OTG transceivers, one full-speed and one high-speed on the Base board, one full-speed on the Atlas board, with mini AB connectors 10 Base-T Ethernet controller with RJ-45 connector with built-in data flow LED indicators IrDA Specification 1.4 transceiver supports fast, medium, and slow operating modes ATA5 controller with 44-position dual row, 2 mm header for small form-factor disk drives I2C interface with one of two selectable MCU interfaces CSPI connector Two CSI connectors, with different image sensor orientations Smart serial LCD display connector QVGA LCD display connector with touch screen interface plus companion connector with additional control signals Two smart parallel LCD display connectors TV encoder connector Keypad connector Interface connector to baseband processor Audio synthesizer chip with microphone and line inputs (3.5 mm jacks); line, voice, and headphone outputs (3.5 mm jacks); and speaker output (screw terminals) Eight DIP configuration switches with user-definable functions Software-readable CPU and Base board versions LED indicators for +5V IN, 3.3V, vibrator output, and synthesizer output. Two LED indicators for user-defined function Piezoelectric audible alert and vibratory alert Three RGB funlight indicators and funlight connector Push button Reset (on CPU) or reset control from Atlas 1-wire EPROM • Push button interrupt source Two Mictor LA/SW Analysis Connectors (Base board) Four Samtec LA Connectors (CPU) Three Extension connectors, two are compatible with the MX21 ADS Extension connectors Special Atlas board features Stereo microphone jack, normal microphone jack, external TXIN jack, headphone jack, low level stereo input and output jacks, stereo and mono (ear piece) speaker terminals Main battery emulation from +5V Main battery connection terminals Back up battery emulation (super cap) Coin cell (backup) battery connection terminals Battery charger input terminals Backlight LED indicators Three Push button switches to act as power on/off switches DIP switches to select default power up power and power sequencing. USB mode, USB enable, and WDI disable DIP Switches. Audio clock source selection DIP Switches. Individual test point and LED indicator for each Atlas voltage USB cables, RS-232 serial cable, and two RJ-45 Ethernet cables, network, and crossover Additional Resources Booting Linux From NAND Flash on the i.MX 31 ADS IMX31ADS Compiling Linux kernel mainline

We are pleased to announce that Config Tools for i.MX v25.03 are now available. Downloads & links To download the installer for all platforms, please login to our download site via:  https://www.nxp.com/design/designs/config-tools-for-i-mx-applications-processors:CONFIG-TOOLS-IMX Please refer to  Documentation  for installation and quick start guides. For further information about DDR config and validation, please go to this  blog post. Release Notes Full details on the release (features, known issues...) • Output Paths Overrides for toolchain project is fixed. • "Filter source files" search bar with case-sensitive checkbox is removed. • TEE – Sort for Peripheral Configurations table is added. DDR tool (part of Config tools for i.MX 25.03😞 [MX91] Added 1Gb and 2Gb DRAM configurations in the GUI. [MX9x] Enhanced Diagnostic tests to display DBI lane when DBI is enabled. [MX95][FW2024.09] Optimized PLL settings. [MX95][FW2024.09] Included missing registers in the retention list. [Mscale] Added a temperature derating GUI option for devices with LP4. [8MP] Updated PMIC configuration to correctly set 1.2V for 8M-Plus. [8MN] Improved board bus configuration. Enabled maximum number of available frequencies setpoints for all supported devices. Added EVK default configuration for all supported devices.

Features 1.75" x 2.5" CPU board 4" x 4" Expansion board Board Support Package i.MXL LiteKit drivers: Serial Ethernet I2C (audio, LEDs and Switches) Framebuffer/Video and Touchscreen SD/MMC Audio i.MX21 LiteKit drivers: Serial Ethernet I2C (LEDs and Switches) Framebuffer/Video and Touchscreen SD/MMC Audio USB host GX-Linux baseline distribution GNU X-Tools from Microcross For more information, [click here.]

Gstreamer Please, select the gstreamer package in [LTIB] under Package List. Choose the package that you will need. For a complete installation, select all: gstreamer gstreamer-plugins-base gstreamer-plugins-good gstreamer-plugins-bad gstreamer-plugins-bad gstreamer-plugins-ugly What can be done With Gstreamer, it's possible to: i.MX27 ADS Board Video GST Play i.MX27 ADS Board Video GST Encode i.MX27 ADS Board Video GST Video Streaming

Current the SSI is set to I2S slave mode in FSL default release BSP. attached the code for how to set it to master mode.

Linux kernel provide some apis to allow changing dtb node after system booted. But the node change must happen before the driver loading. We can use gereral dtb file and add some dts node after system boot.

Why raising QoS priority for EPDC Eink has been developing higher resolution panel. With higher resolution, TCE underrun problem is observed more easily. Highest QoS priority can provide obvious improvement. What's TCE underrun TCE is Timing Controller Engine which is responsible for TFT scan frame refreshes. The pixel FIFO (PIX_FIFO) is used to load working buffer pixel data for TCE. When FIFO underrun, TCE_UNDERRUN_IRQ interrupt is triggered, and TCE underrun log pops up in kernel log. The pixel data is processed by TCE to generate TFT voltage control pixels for panel. If an underrun occurs, unknown data is used and that can damage the panel. About the patch The patch raises EPDC reading to highest priority (QoS='f'), so the EPDC reading becomes real time channel in MMDC configuration. The patch is based on L4.1.15 kernel. Stress test of unit test can pass with 1920x1440 configuration.