And of course I picked GPIO46 for I2C SDA, so it's pulled high.
https://github.com/skot/bitaxe/issues/18After removing the SDA I2C pull-up resistor I can program the ESP32 with ESP-Prog, so that's good news!
Skot, did you manage when testing and sniffing the communication between BM1397 and ESP32-S3 Module to send a test mining job/work using the ESP32-S3 Pins ? Which pins did you use communicate to BM1397 Chips from ESP32-S3 module?
Trying to quickly perform just a quick test to see what BM1397 chip responds as per your sniffing notes
https://github.com/skot/ESP-Miner/blob/master/bm1397_protocol.md