topic Re: i.MX8M DDR test tool USB issue in i.MX Processors

i.MX8M DDR test tool USB issue

pnee — Tue, 03 Mar 2020 11:50:12 GMT

I am trying to use the MSCALE_DDR_Tool with the i.MX8M evasl board.

I have connected the USB OTG cable and the USB UART cable and I know the target is wroking as I can see data being output to console when the target is booting in internal boot mode (boot mode = 10).

When I switch boot mode to serial downloader (boot mode = 01) and attempt to download my .ds file to the target I keep getting "ERROR: Can't open USB device!!!"

I am not sure that my host PC is recognising the USB Input Device correctly as no new devices are being added to the list when I connect the USB OTG cable from the target to the host PC?

What is wrong here?

Re: i.MX8M DDR test tool USB issue

Yuri — Wed, 04 Mar 2020 04:53:30 GMT

Hello,

The DDR tool should run in Windows administrative mode.

USB Type C connector (cable) should be used.

Is it so?

Have a great day,

Yuri

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Re: i.MX8M DDR test tool USB issue

pnee — Wed, 04 Mar 2020 08:57:27 GMT

Yes - I can confirm I am running the DDR tool as administrator.

And I am using a USB Type cable.

Regards,

PJ.

Re: i.MX8M DDR test tool USB issue

pnee — Wed, 04 Mar 2020 08:59:00 GMT

Yes - I can confirm I am running the DDR tool in administrator mode.

Also, I am using a USB Type C cable.

Regards,

PJ Nee.

Re: i.MX8M DDR test tool USB issue

Yuri — Thu, 05 Mar 2020 06:45:41 GMT

Hello, pnee@asset-intertech.com

You mentioned about "the target is booting in internal boot mode" - serial downloader mode

should be used.

Regards,

Yuri.

Re: i.MX8M DDR test tool USB issue

pnee — Thu, 05 Mar 2020 08:53:50 GMT

The target boot mode is set to serial downloader mode. I was merely using the internal boot mode to demonstrate that the target is working and booting.

Regards,

PJ.

Re: i.MX8M DDR test tool USB issue

Yuri — Thu, 12 Mar 2020 08:57:46 GMT

Hello,

To be sure if serial downloader mode is applied - use working SD boot configuration and

do not insert boot SD card and power on the board, assuming after boot error serial downloader

mode is entered automatically.

Regards,

Yuri.