to confirm - I am NOT running the same sketch as the NRF52. I am running the XIAO ESP32C3 example on a XIAO ESP32C3.
To review:
- I am using a custom PCB. same PCB (different units from same batch) for all tests.
- D2 , D8, D9, and D10 for SD card connection.
- I have one PCB with the XIAO NRF52840, another with the XIAO ESP32C3, castellated soldering.
- The NRF52840 version recognizes the SD NAND flash using the XIAO nRF52840 SD card example sketch
- The ESP32C3 version does not recognize the same NAND flash using the XIAO ESP32C3 SD card example sketch
- I have attempted a different PCB from the same batch, with a different XIAO ESP32C3, using the XIAO ESP32C3 SD card example sketch, and still do not detect the SD NAND Flash