No serial output whatsoever on 8MMINI

[pfworks]

I just received an 8MMINI. There is no output on serial or HDMI whatsover, no matter which DIP settings I use.

Also, when I try to use uuu, I get the below. I see that /dev/ttyUSB{0,1} get created. Do I just have a dead board that needs to be RMA'ed?

root@rockpi:~# uuu ./L4.14.78_1.0.0_ga_images_MX8MMEVK.zip
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.69-1-gf1d41e2

Success 0 Failure 0 Wait for Known USB Device Appear...

Prep 1/ 0 [=================100%=================] Http Download\Uncompress

[pfworks]

So it turns out that i have to install the u-boot to the board using 

dd if=<uboot file> of=/dev/sda bs=1k seek=33 conv=fsync

[pfworks]

I can see the Red/Green on the HDMI board, as well as the red power light. I've tried the eMMC boot to android (this board is freshly out of box) and I get no serial or HDMI output. I've also switched the jumpers to download mode to use uuu, and I get the above. I'm going to go pick up an SD card. From what I gather, I need to dd the sdcard image and then set the jumpers to boot from it to see if that works. However, since it did not even boot android, I'm worried that my board is dead.

[pfworks]

OK, so from the L4.14.78 image, I burned the .sdcard image to an sdcard, put it in the box, changed the jumpers to boot from uSD. Still nothing.

I've initiated an RMA with futurenet, but want to make sure it really doesn't work before I send it back.

[jamesbone]

Serial Port has been tested? Are you using windows Terminal? or Linux Terminal? do you get the Serial Driver detected?

[pfworks]

I see /dev/ttyUSB* get created and the FTDI drivers get loaded under Linux, so this should work.

Also, again, no HDMI output either when booting from emmc

[pfworks]

and when I boot from eMMC, no ethernet lights appear. I'm guessing that perhaps this board was never provisioned? Unfortunately, I have no JTAG to do further tests, so this probably has to be returned.

[jamesbone]

Can you please test using the latest version of Linux BSP  Linux 5.4.70 You can download the images to flash using the UUU tool from the following link:

https://www.nxp.com/webapp/Download?colCode=L5.4.70_2.3.0_MX8MM&appType=license

If this doesn´t work then go forward with the Return

[pfworks]

Just to be clear on steps.

1) run "uuu <file.zip>"

2) Turn on board with jumpers set to "Download Mode"

correct?

[jamesbone]

Yes, that´s correct

[pfworks]

Yeah, nothing happens. One more question. When it says "x" on the jumper guide, I assume that means it doesn't matter what it is set to?

root@rockpi:~# uuu /tmp/L5.4.70-2.3.0_images_MX8MMEVK.zip
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.69-1-gf1d41e2

Success 0 Failure 0 Wait for Known USB Device Appear...

Prep 1/ 0 [=================100%=================] Http Download\Uncompress

[jamesbone]

You can check if the board was detected from the Host PC,  with a

lsusb

[pfworks]

I believe so:

Bus 005 Device 002: ID 0403:6010 Future Technology Devices International, Ltd FT2232C Dual USB-UART/FIFO IC

[jamesbone]

The board is Burn,  you need to start the return,  it was my last idea to have the USB cables wrong into the host or in the power, But this confirms that the board simply it is not working.

[pfworks]

OK, so as I was packing it away, I noticed it shipped with an SD card. I plugged this in, and it works, however the console is on ttyUSB1 and not ttyUSB0 like the docs say.

So I'll try the other SD card I made, but I have another question. How do I load a dev environment (gcc and such) on this board as I need to build some drivers?

[pfworks]

ALso, these instructions completely do not work:

Get Started with the MCIMX8M-EVK | NXP

There is no "mfgtools" file

[pfworks]

Any update on how I would get a dev environment on this board so I can compile a driver?

[jamesbone]

Do you think you can share a picture of the board?, how do you get the board?  In order to see if a warranty it is needed,  the person or distributor that sold you the board should enter the warranty process.

https://www.nxp.com/support/sample-and-buy/buy-direct/returns-and-warranty-information:WTBUY_DTD_RET...

[pfworks]

Here is the picture, but before I RMA it, I don't want to get another one and have it act the same way.

[jamesbone]

You can follow the instructions of the Getting Started Page, using a PreBuilt Image, here is the link:

https://www.nxp.com/document/guide/get-started-with-the-i-mx-8m-mini-evk:GS-iMX-8M-Mini-EVK

[pfworks]

I followed those instructions, and they do not work.