AM5728: AM5728 chip PRU, DSP memory allocation consultation

Hello Jehu,

Have you taken a look at the SDK Documentation?

Please see the following:

• https://software-dl.ti.com/processor-sdk-linux/esd/docs/06_03_00_106/linux/Foundational_Components_IPC.html#ipc
• https://software-dl.ti.com/processor-sdk-linux/esd/docs/06_03_00_106/linux/Foundational_Components_IPC.html#ipc-for-am57xx

This is the nearest documentation to your SDK version you are using that we can help with, for your questions:

jehu liang said:

ipu_cma_pool and dsp_cma_pool configuration I did not find the physical address and the description of the amount of memory that can be allocated in the data sheet

This is a memory allocation that is reserved from the RAM memory and specified in the DTS.

jehu liang said:

How is dsp2dsp_shm assigned and not explained in the data sheet

I believe this is assigned as a buffer for the DSP, you would have to inspect the DSP resource table to see what it is allocated for.

jehu liang said:

I currently need to reallocate this memory, can you tell me where I can confirm the physical address configured with the device tree and the memory size that can be allocated

For this you will need to review the DTS, Resource table and linker file. You can also consult the Memory map on the TRM.

Best,

Josue