MCIMX6QAICPU2 not booting

michaelboc · ‎04-09-2018

Good morning,

I've received 4 MCIMX6QAICPU2 boards (without SD cards and without base boards).

Using the user guide, I've compiled a image.sdcard file that I've dd'ed into a SD card.

Configuring the DIP switches as specified to boot from a SD card I've plugged a 5v 4A power supply.

Nothing on the debug UART and nothing on HDMI.

I've validated the electrical continuity on the DIP switches => everything is ok

I tried using the mfgtool on windows, I can see the board recognized but the tool blocks on pushing the u-boot.

I also tried with the SPI NOR with mfgtool ==> no success, keep blocking no warning

I even reprogrammed the SPI NOR chip manually with a digital oscilloscope ==> no success, no output

How can I understand what is wrong here because 4 boxes not working in a row is strange.

The only thing I see is the leds:

- one blue next to the SD card socket

- one yellow (STDBY led)

- two greens next to the reset buttons

Best

igorpadykov · ‎04-09-2018

Hi Michael

one can check Sabre AI Quick Start Guide

https://www.nxp.com/docs/en/user-guide/IMX6SABREINFOQSG.pdf

For programming use mfgtool2-yocto-mx-sabreauto-sdcard-sd3.vbs script

https://www.nxp.com/webapp/Download?colCode=IMX6_L4.9.11_1.0.0_MFG_TOOL&appType=license&location=nul...

or with sect.4.3.2 Copying the full SD card image attached Linux Guide

and Demo Images

https://www.nxp.com/webapp/Download?colCode=L4.9.11_1.0.0_MX6QDLSOLOX&appType=license&location=null

use kernel boot parameters ("6SABRE-AI") from Table 10. Common kernel boot parameters attached Release Notes.

Best regards
igor
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michaelboc · ‎04-10-2018

Thank you.

I used these documents to configure the board and to make the image.

I found the issue which was a problem with dd on my linux setup that was not reliable (specially when you don't unmount the sd card existing partitions prior to dd). So the boards boot now.

Best