• why print 'cpu cpu0: _opp_is_duplicate: duplicate OPPs detected. Existing: freq: 900000000, volt: 1275000, enabled: 1. New: freq: 900000000, volt: 1275000, enabled: 1'

    u-boot: 2016-03 kernel: 4.19.35 board: imx6ull     chip id:   xxxxx08aa i use my config boot the kernel, in last it print duplicate OPPs detected,it's that:  Starting kernel ... [ 0....
    he lun
    last modified by he lun
  • imx8qxp的板子,从sd卡启动时,uboot执行sf probe失败

    imx8qxp的板子,从sd卡启动时,uboot执行sf probe失败,QSPI Flash不可用。请问是什么原因?
    hagen fu
    last modified by hagen fu
  • Lost Page Write on Ultralight EV1 even after read verify

    Is there any chance that an Ultralight EV1 chip could lose a write? Is Read after write from Flash or RAM? (Ultralight EV1)   I have a situation where I use a CLRC663 with the C NFC Reader Library whe...
    Jeffrey Chan
    last modified by Jeffrey Chan
  • Hard fault when configuring 2-channel FTM on E series

    I'm seeing a hard fault exception when configuring FTM0 or FTM1 (both 2 channels) on a MK02Z16 device (also tested on KE06Z with same results).  The same code sequence works fine on FTM2 which 8 channels so not s...
    Jonathan Guy
    last modified by Jonathan Guy
  • CAN Frame Drop

    We are using a custom board which has a iMX6 Solo processor which runs Android KK. We are trying to receive burst of CAN frames from another device. It seems that, there is at-least one frame getting dropped in the iM...
    Sudar KB
    last modified by Sudar KB
  • Usb UVC webcam gadget bulk transfer

    Hi, I'm developing a Linux camera and the output is uvc via the g_webcam gadget. For now I'm capable of 40fps with a resolution of 640x480 yuy2. I'm working with a imx7D   I'm capable of much higher fps on a cyp...
    Alexandre Caron
    last modified by Alexandre Caron
  • Modifying the latest Adafruit 2.8" LCD for SDK graphics examples

    Our MCUXpresso SDK is expanding to include more and more graphics examples, including LittleVGL and emWIN support for SPI-based LCDs. The examples we provide can be ported to different controllers, but are based/...
    Brendon Slade
    last modified by Brendon Slade
  • I2C-bus Status Register Descriptions

    I am working with the MSP430FR2311 that has the SC18IM700 chip. I was writing tests for I2C master and slave communication between two of the same board. One is programmed as a master and the other as a slave. I ...
    Andrew Stephen
    last modified by Andrew Stephen
  • mfgtool2 with -l ""eMMC-Brillo-uboot-fuse"" damage my SOM pico-i.MX7D

    Hi,   In this link: https://community.nxp.com/thread/452013 (stepes 1 to 5) I used the mfgtool2-brillo-mx7d-multa-emmc-firmware script instead of the mfgtool2-brillo-mx7d-pico-emmc-firmware script. The...
    last modified by NEUBER DE SOUSA
  • Can the OpenSDA Interface circuit be simplified that is currently on the FRDM-K64F development board?

    Can the OpenSDA Interface circuit be simplified that is currently on the FRDM-K64F development board?  Are the level shifters actually needed?  If so, what are they used for if the the MK20DX128VFM...
    David Moulin
    last modified by David Moulin
  • JN5169 Detect the RSSI of the channel

    HI,    I now need to add a feature to the coordinator(JN-1216) that can use a command to control the RSSI of the device measurement channel n. In this way, the equipment can be measured during the prod...
    tianheng han
    last modified by tianheng han
  • Memory Map for NCJ29D5

    I found EROM with Start Address as 0x0020 0000 and End Address as 0x0023 FFFF. But I didn't find any information regarding Block Size or number of blocks available for Flash. Can you please send detail information abo...
    Meghana Andhavarapu
    last modified by Meghana Andhavarapu
  • version ad57538

    Hi Community,   I am trying to determine which SDK release's I have for K64F and KW41Z on my Rapid IOT proto kit. My version at boot indicates ad57538. How can I determine this?
    Jim Picariello
    last modified by Jim Picariello
  • LPC1124 capabity of detection of  5000pulse per second input

    Hi, I am using LPC1124 with exkernat crystla of 12MHZ in one of my project. I want to know How much max speed of input pulse can the CPU LPC1124 can detect.and what is the formulae for calculation.  can th...
    Dhiren Sahoo
    last modified by Dhiren Sahoo
  • IMX8QM uuu u-boot Failed

    hi sir,    when i use uuu tool in windows to update android 9(which i compiled), there is one error happened at the beginning,log as follow:   >uuu D:\uuu\Windows\uuu-android-mx8qm-mek-emmc.ls...
    mars gu
    last modified by mars gu
  • MKW41Z - Debugger disconnects when VDD1P8 is increased

    Hi,   I'm running a custom board with MKW41Z on it, powered from 3V3. In my hardware initialization routine (inspired from the FRDM-MKW41 examples), I'm increasing the output voltage of the built-in DC regulator...
    Alexandru Stefan
    last modified by Alexandru Stefan
  • Board Support Package, OS and programmability questions

    Hello,   We are in development of two gateway solutions for our companies. A base level gateway which has an i.MXRT processor and an advanced gateway which has an i.MX8DX processor. Can you please answer the fol...
    Robert Cachro
    last modified by Robert Cachro
  • How to get eMMC 8-bit HS DDR fast boot mode working on iMX8MM

    We are unable to get fast boot mode with ack working on eMMC when configured for 8-bit hs DDR mode on our custom board. The eMMC hardware works correctly both after loading u-boot through sdp&...
    Kurt Kiefer
    last modified by Kurt Kiefer
  • LibPNG ?

    Is anyone here using LibPNG on the iMXRT?  Would like to find this middleware setup, with its associated pnglibconf.h files etc, for iMXRT usage.
    Mike Spenard
    last modified by Mike Spenard
  • GPIO Direction vs Output_Enable

    I just need some clarity here.  I am porting some code to a K8x from an ARM MCU from another manufacturer.  They have a GPIO Data Output Enable Register. There is no concept of 'direction', as the GPIO ...
    Denis Collis
    last modified by Denis Collis