Need help to start PSRAM support into ESP32 IDF 3.1

[Ritesh]

Hi,

I have looked below page for more understanding regarding configurations.

https://docs.espressif.com/projects/esp ... ram-config

So, Would anyone please suggest me like which configuration must be required and which configuration can be useful to use PSRAM without any issue?

[Ritesh]

Hi Espressif System Developer,

Any Update regarding last post in which I have sent couple of queries regarding configuration of PSRAM?

[fly135]

I use this approach with heap_caps_malloc(size, MALLOC_CAP_SPIRAM)...

Add external RAM to the capability allocator
Select this option by choosing “Make RAM allocatable using heap_caps_malloc(…, MALLOC_CAP_SPIRAM)” from CONFIG_SPIRAM_USE.

When enabled, memory is mapped to address 0x3F800000 but also added to the capabilities-based heap memory allocator using MALLOC_CAP_SPIRAM.

To allocate memory from external RAM, a program should call heap_caps_malloc(size, MALLOC_CAP_SPIRAM). After use, this memory can be freed by calling the normal free() function.

I suppose that you could also integrate it to malloc. But I like the other because I know for sure that I'm getting it from PSRAM.

John A

[Ritesh]

I use this approach with heap_caps_malloc(size, MALLOC_CAP_SPIRAM)...

Add external RAM to the capability allocator
Select this option by choosing “Make RAM allocatable using heap_caps_malloc(…, MALLOC_CAP_SPIRAM)” from CONFIG_SPIRAM_USE.

When enabled, memory is mapped to address 0x3F800000 but also added to the capabilities-based heap memory allocator using MALLOC_CAP_SPIRAM.

To allocate memory from external RAM, a program should call heap_caps_malloc(size, MALLOC_CAP_SPIRAM). After use, this memory can be freed by calling the normal free() function.

I suppose that you could also integrate it to malloc. But I like the other because I know for sure that I'm getting it from PSRAM.

John A

Thanks for update regarding same. I will check it and let you know if need any further help for same.