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Second SPI for ESP32-S3-DevKitC-1-N32R8V Development Board

Posted: Tue Dec 10, 2024 3:43 pm
by igormoo
I need a second SPI for the ESP32-S3 module, but I see a lot of conflicting information online. Most of the information claims that there are 2 dedicated "fast/hardware" SPI channels on the module - one I've dedicated to work with a screen, but I'd like to assign the second one to work with an Ethernet module.

I was just made aware that according to the documentation:
"For modules with Octal SPI PSRAM, i.e., modules embedded with ESP32-S3R8 or ESP32-S3R16V, pins IO35, IO36, and IO37 are connected to the Octal SPI PSRAM and are not available for other uses."
So what pins can I use for the "second" hardware-enabled SPI?

Thank you

Re: Second SPI for ESP32-S3-DevKitC-1-N32R8V Development Board

Posted: Wed Dec 11, 2024 2:45 am
by ESP_Sprite
Any. SPI can be routed via the GPIO matrix to any GPIO pin.