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i.MX Processors Knowledge Base

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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-341996 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343777 
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[中文翻译版] 见附件   原文链接: eIQ Machine Learning Software for i.MX Linux 4.14.y 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-342420 
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When you do long test (days or weeks) test on i.MX board and your test fails, you often wants to know what has happen with a JTAG probe. The problem is when you have 50 boards running in parallel, you don't have the budget to have 50 JTAG debug probe. If you do a "hot plug" of your JTAG probe, you have roughly one chance out 2 to reset your board... so you'll have to wait another couple of hour to resee the problem. Anyway to have a reliable JTAG plug with no reset, it is really simple... cut the RESET line on your cable! then you'll still be able to "attach" to your i.MX. On the MEK board, with a 10-pin JTAG connector, you have the cut the cable line 10 of the ribbon cable: On the cable, cut the reset line like this: With my Lauterbach JTAG  probe, when I do a "hot plug" I never have a reset of my i.MX. BR Vincent
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-345644 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343761 
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For the board imx8M Quad EVK running the Linux 4.14.78-1.0.0_ga version BSP, the resolutions 3840x2160,1920x1080, 1280x720, 720x480 are support in our default BSP. For the other resolutions how to make it work? This patch used to do support for a non-default resolution on i.MX 8MQ EVK. Basically, the customer needs to change the clocks accordingly to the display requirements,  it to be used as a base to the display support.
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[中文翻译版] 见附件   原文链接: Add a new shared memory region on Android Auto P9.0.0_GA2.1.0 BSP 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343242 
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This document describes the i.MX 8MM EVK mini-SAS connectors features on Linux and Android use cases, covering the supported daughter cards, the process to change Device Tree (DTS) files or Boot images, and enable these different display options on the board.
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343273 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-344336 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-345680 
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   Recently, some customers encountered the problem that compilation failed when compiling l4.14.98-2.0.0 fsl-imx-waylan + fsl-image-qt5-validation-imx in Ubuntu 18.04 environment. In fact, compiling QT image is a very time-consuming process, especially in the process of compiling, errors need to be handled, which will be more time-consuming. The following compilation took four days to complete. 1. Environment Linux Host : ubuntu 18.04 LTS Virtual Machine: VMware workstatin Player 12 images: fsl-imx-waylan + fsl-image-qt5-validation-imx Hardware: imx8mqevk Linux BSP verison: L4.14.98-2.0.0 2. Steps (1)Installation of Ubuntu 18.04 2.Update software 3. Installing software package for compiling BSP # sudo apt-get install flex # sudo apt-get install bison # sudo apt-get install gperf # sudo apt-get install build-essential # sudo apt-get install zlib1g-dev # sudo apt-get install lib32ncurses5-dev # sudo apt-get install x11proto-core-dev # sudo apt-get install libx11-dev # sudo apt-get install lib32z1-dev # sudo apt-get install libgl1-mesa-dev # sudo apt-get install tofrodos # sudo apt-get install python-markdown # sudo apt-get install libxml2-utils # sudo apt-get install xsltproc          # sudo apt-get install uuid-dev:i386 liblzo2-dev:i386 # sudo apt-get install gcc-multilib g++-multilib # sudo apt-get install subversion # sudo apt-get install openssh-server openssh-client # sudo apt-get install uuid uuid-dev # sudo apt-get install zlib1g-dev liblz-dev # sudo apt-get install liblzo2-2 liblzo2-dev # sudo apt-get install lzop # sudo apt-get install git-core curl # sudo apt-get install u-boot-tools # sudo apt-get install mtd-utils # sudo apt-get install android-tools-fsutils # sudo apt-get install openjdk-8-jdk # sudo apt-get install device-tree-compiler # sudo apt-get install aptitude # sudo aptitude install libcurl4-openssl-dev nss-updatedb   From i.MX_Yocto_Project_User's_Guide.pdf: # sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \ build-essential chrpath socat libsdl1.2-dev   4. Downloading Yocto BSP according to steps in i.MX_Yocto_Project_User's_Guide.pdf 5.Compiling L4.14.98-2.0.0 BSP # cd ~/imx-yocto-bsp # DISTRO=fsl-imx-wayland MACHINE=imx8mqevk source fsl-setup-release.sh -b build-wayland # bitbake fsl-image-qt5-validation-imx In the process of compilation, there have been many "fetch errors", which are caused by disconnection or timeout of network connection. We just need to run the bitmake command again in the build Wayland subdirectory to continue the compilation. # bitbake fsl-image-qt5-validation-imx          Fetching errors below were what I encountered:          The following picture is to re-run “bitbake fsl-image-qt5-validation-imx” after fetch errors occurred.          In order to improve the speed of compilation , I re-configured vmware player, assigning 6 CPU cores for Ubuntu.          Compilation is a long and arduous process. It took 4 days to compile normally with error handling. Finally, the compilation was completed. NXP TIC Team Weidong Sun 2019-11-02
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343518 
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[中文翻译版] 见附件   原文链接: https://community.nxp.com/docs/DOC-343079 
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