ESP32 Forum

Hello everyone,

I am new to ESP32 and feel very interest in ESP32-C3 family. However, I notice that ESP32-C3 does not have External RAM section in its Reference Manual document as other ESP32 chips. There is External Flash section for this SoC only. I am fully aware that the document still not completed and still updating. I wish to understand this wonderful SoC for my future development plan. So, my question is "Does ESP32-C3 support external RAM ICs?"



Thank you very much!

Not in the same way the ESP32 does, that is, it can't integrate it in the memory map to use transparently in the same way as internal RAM. Obviously, external RAM still is a SPI device, so you can use a SPI channel to manually shuttle data from/to an external RAM chip. I can imagine that's not what you are looking for, though.

ESP_Sprite wrote: ↑

Thu Sep 16, 2021 6:36 am

Not in the same way the ESP32 does, that is, it can't integrate it in the memory map to use transparently in the same way as internal RAM. Obviously, external RAM still is a SPI device, so you can use a SPI channel to manually shuttle data from/to an external RAM chip. I can imagine that's not what you are looking for, though.

I got it! Thank you very much!