topic imx7ulp evk cannot enter download mode in i.MX Processors

imx7ulp evk cannot enter download mode

andrew_questps — Thu, 02 May 2019 02:55:01 GMT

Hi all,

I can't seem to figure out what I am doing wrong here. I have changed the boot-pins to download mode (D1 off, D2 on) but I can't detect anything on my PC.

If I use the SD card provided with the EVK then the linux distro boots fine (when i change back to dual boot settings (on, off, off, on).

Is there something I am missing here? With the imx7d sabre board I had to remove the SD card and then try to boot the system before the serial downloader worked, is there something similar that needs doing here?
I am attempting to load the android demo image from NXP.

Regards,

Andre

Re: imx7ulp evk cannot enter download mode

CarlosCasillas — Thu, 02 May 2019 20:25:35 GMT

Hi Andre,

The DIP switch configuration that you mentioned are actually correct for Serial Downloader Mode.

The other thing that you need to verify is that you are connecting the board to the PC trough the USB Type-C port (the one from the processor) instead of the micro USB (which is from USB-Serial converter).

Hope this will be useful for you.
Best regards!
/Carlos
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Re: imx7ulp evk cannot enter download mode

andrew_questps — Fri, 03 May 2019 00:21:22 GMT

Thanks - silly me, I think I didn't have the cable plugged in correctly...

I was asking another question about the MIPI display but have now seen the hardware note that says that 5 resistors need to be removed and 5 0-ohm links need to be added, will do so after lunch.

Re: imx7ulp evk cannot enter download mode

watssonmerry445 — Fri, 03 May 2019 06:19:10 GMT

I have also faced the same issue on my system and I directly reported this on epson error code 0xf4 and it is really very helpful to guide in this matter.