Quote:
Originally Posted by stevenaleach
My one gripe is that I have to use software SPI for everything (SD, memory display, FRAM and, eventually, the eInk display as well) because if I use hardware SPI for any other device, the memory display quits working... that's a real pain because It doesn't appear I can use software SPI with the standard Arduino/ESP32 SD libraries
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The Arduino API is a layer on top of (wrapper around) the ESP-IDF API.
Several times I've read that the Arduino libraries have limitations that aren't there when you use the ESP-IDF so I'm focusing on the latter.
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/