• yocto的一些疑问

    bitbake生成rootfs后如何删除?每次执行bitbake xxx-image后在deploy目录下都会生成一次rootfs.xxx的文件,如何清除它们? config/local.conf中IMAGE_INSTALL_append添加的内容无法保存?每次进入编译都需要修改append宏才能生成我要的rootfs? IMAGE_INSTALL_append += " e2fsprogs" 无法将属于e2fsprogs包的...
    luo yaojun
    last modified by luo yaojun
  • i.MX6ULEVK can play audio but not record

    Hi ,     I'm testing i.MX6ULEVK wm8960 by aplay and arecord.  The images I used are the official demo of L4.14.98_2.0.0_ga and I have set the configurations for the board's mic. I could play the /unit_...
    Ida J
    last modified by Ida J
  • How to burn in images for i.MX 8QuadXPlus MEK and boot it ?

    Looking forward to your help.
    tang long
    last modified by tang long
  • Linux C :send and receive ARP Package using socket

    OS: Linux development language:C   I need a example code for send and receive ARP Package using socket in linux user space。 Can somebody help me?      Tks! BRs Johnny!
    liu yonggang
    created by liu yonggang
  • How to enter SNVS mode by SW on imx7d?

    Hi!   According to "i.MX 7Dual Applications Processor Reference Manual, Rev. 1, 01/2018"  part 5.1.4.4 "Power Modes" there are two ways to enter "SNVS" mode  from "RUN" mode: ONOFF long press, or SW. ...
    Pawel Lenkow
    last modified by Pawel Lenkow
  • 怎么修改摄像头分辨率

    开发板:imx8qm 摄像头:mipi ov5640 我使用opencv打开摄像头。当打开摄像头时,摄像头分辨率为2592x1944。我想使用640x480分辨率。我应该怎么设置呢?使用opencv设置。而不是gstreamer命令
    song zhiyuan
    created by song zhiyuan
  • USB1_ID State during USB Serial Download

    Hello,   In our application the USB peripheral of the i.MX8M Nano is Master by grounding the USB1_ID pin(D22) through a 0E resistor.   During mass manufacturing of our product we intend to use the USB Seri...
    arnemaathuis
    last modified by arnemaathuis
  • Difference between Reference Design Voltage and Measured Voltage

    Hi,   We are bringing up a board based on the NXP Volansys Modular Gateway Reference Design. We are setting 5.2V on the power supply to achieve 5.0V on the J15 connector. The current drawn by the board (as show...
    Aquiel Godeau
    last modified by Aquiel Godeau
  • How does the LCD keep the uboot logo displayed to the kernel?

    Hi all:     The chip I used is imx6sx, and the BSP version is 4.14.98,and the LCD drive mode is rgb565.Now I can display the logo in Uboot and kernel respectively, but during kernel startup, there will...
    long hao
    last modified by long hao
  • iMX8QXP SCU wakes up once a second during suspend?

    Hi,   SCFW: 1.2.7.1 Linux BSP: 4.19.35 SoC: iMX8QXP PMIC: PF8100   When I put the system into suspend (KS1) I can see the PMIC coming out of standby via the SCU disabling SCU_PMIC_STANDBY. The PMIC then tu...
    John Ernberg
    last modified by John Ernberg
  • Cann't download Linux image files through the usb2.0 interface on imx8qm

    Hi weidong sun:      By default, Imx8qm download linux image files through the type-C interface. As shown in the picture "Default Download". But now i want download linux image files througt the U...
    yingjin yan
    last modified by yingjin yan
  • imx6ul Xfrmouterror问题

    hi ,我在demo板上运行,然后文件系统也是yocto原版,目前内核悬赏xfrm的支持后,但是报错,如下,请问大概是什么错误,哪里选项还没有选对?
    haifeng jin
    created by haifeng jin
  • Is it now L5.4.3_1.0.0 or directly L5.4.3_2.0.0?

    OK, I admit the supporting information isn't published as of yet. However, there are now binary demo files under BSP, Drivers and Middleware which suggest it being L5.4.3_1.0.0 but then the sources...
    Marcel Ziswiler
    last modified by Marcel Ziswiler
  • MIPI CSI2

    Hi,   Is there a guide similar to the AN5305 (which is for iMX6) for the iMX8MQ? It would be greatly appreciated,   Thanks,   Simon P. Tsaoussis
    Simon Tsaoussis
    last modified by Simon Tsaoussis
  • IMX8M Mini SDMA1 EXT EVENT0

    Hi,   The GPIO1_IO03 pad has an alternate function SDMA1_EXT_EVENT0(ALT5) according to the NXP IMX8M reference manual.       When I configure the IOMUX to enable SDMA_EXT_EVENT0 on GPIO1_IO03 ...
    Vishwas M
    last modified by Vishwas M
  • imx8mq gpio

    HI: When i operation gpio109(GPIO04_IO13) , I use sysfs and memtool  to succeed and see the results,but when i use code,i don not see results ,follow:(DTS has been modified,This is because we need to a...
    gao bo
    last modified by gao bo
  • Read CS pin value in i.MX6

    I am using i.MX6ull processor as slave. I want to read the status of the CS pin which is ecspi4 SS0 pin. In which file i should monitor CS pin status? I have tried to search in spi-imx.c file but i could not get hig...
    steve Gabriel
    last modified by steve Gabriel
  • boot linux kernel from usdhc2 at mx7d cpu

    Hi.   We are porting linux to our board. We need to boot linux kernel from usdhc2. Because the pins of usdhc1 are used for other purpose. The u-boot boots form usdhc2. but u-boot can not find the sdc...
    Hideo Yamashiro
    last modified by Hideo Yamashiro
  • IMX8 HDMI 120Hz?

    Hi,   Does IMX8 MDMI 1920x1080P 120Hz support it?   James 
    James Kim
    last modified by James Kim
  • No Fortran compiler found

    Hi,   I am trying to Compile Scipy for imx6ull eval board in Yocto. But while compiling I am getting no Fortran compiler found. Below is the error log:   copying scipy/_lib/_numpy_compat.py -> build/l...
    Sabin NS
    last modified by Sabin NS