i.MX ProcessorsのトピックRe: Test i.MX8M plus USB type A eye pattern in Ubuntu

Test i.MX8M plus USB type A eye pattern in Ubuntu

Maotom — Fri, 29 Aug 2025 08:49:06 GMT

I would like to perform USB eye pattern from i.MX8M Plus in Ubuntu system. Refer to AN12409 , the memtool utility need to build and perform the specify registors on section 8.4 of AN12409.

Did I check wrong document or the place of link?

Doesn't find the registers from i.MX 8M Plus Applications Processor Reference Manual.

Can't build the memtool utility either.

Kind Regards,

#i.mx8mp #USB

Re: Test i.MX8M plus USB type A eye pattern in Ubuntu

Manuel_Salas — Tue, 02 Sep 2025 01:57:07 GMT

Hello @Maotom

I hope you are doing very well.

Which i.MX8MP Image are you using? (Multimedia, Full, core, etc.).

Normally, the memtool is located under /unit_tests/memtool on the i.MX BSPs.

About the registers, there are not described on the reference manual, but please follow the i.MX 6/7/8 series USB Certification Guide (AN12409).

Best regards,

Salas.

Re: Test i.MX8M plus USB type A eye pattern in Ubuntu

Maotom — Tue, 02 Sep 2025 05:41:29 GMT

Hi Salas,

Image show

Operating System: Ubuntu 24.04.2 LTS
Kernel: Linux 6.6.52

Can't found /unit_tests folder

Does apt install memtool use for registors setting?

Re: Test i.MX8M plus USB type A eye pattern in Ubuntu

Manuel_Salas — Tue, 02 Sep 2025 15:47:10 GMT

Hello.

It seems that you are looking for the /unit_tests directory on your host.

/unit_tests is located in the target OS.

Best regards,

Salas.