topic Re: Conflict between eRPC and usb msd due to USE_SHMEM in i.MX RT Crossover MCUs

Conflict between eRPC and usb msd due to USE_SHMEM

Mc2023 — Mon, 17 Apr 2023 14:31:40 GMT

Hello All,

I have an i.MX RT1160 Evaluation Kit.

1) On CM7, I have:

- Azure RTOS (ThreadX, FileX, UsbX)

- eRPC

2) on Cm4: Bare Metal and eRPC.

It seems that I need the preprocessor USE_SHMEM for eRPC.

When I add the preprocessor USE_SHMEM, eRPC is working but UsbX is not working as I want. Basicall, my usd mass storage device (msd) does not appear anymore in my Windows Explorateur.

If I remove the preprocessor USE_SHMEM, UsbX is working as expected but this time eRPC is not working any more.

Could you help me to solve this issue? I would like to have both eRPC and usb msd working at the same time.

Maybe the problem is how the memory allocation are defined. Please find attached the memory allocation.

Re: Conflict between eRPC and usb msd due to USE_SHMEM

Mc2023 — Mon, 24 Apr 2023 08:42:26 GMT

Any fixes?

Re: Conflict between eRPC and usb msd due to USE_SHMEM

italohcx — Thu, 16 May 2024 14:10:03 GMT

I have same problem with my project, Any fixes?

Re: Conflict between eRPC and usb msd due to USE_SHMEM

italohcx — Thu, 16 May 2024 15:34:51 GMT

It worked! allocating the rpmsg buffer in NCACHE_REGION instead of moving the USB

** Remove flag USE_SHMEM both projects