I am designing a custom ESP32-C3 board with ESP32-C3-WROOM-02 module, and I see the three strapping pins and the explanation in the datasheet – I think for “normal” operation, I just want SPI boot mode (please feel free to correct me if I’m wrong), but nothing says what happens if I leave GPIO2 floating or if it gets pulled to ground. The technical manual and datasheet are pretty clear that both GPIO8 and GPIO9 cannot both be low during boot, but it’s oddly silent about pin2. Does anyone have any experience with this pin?
Also I plan on programming and debugging using Open OCD and a J-Link, does this make any difference with the strapping pins?