Where is the BOOT0 pin?

OpenMV Products
#1

The README.txt file in the firmware directory says that in order to manually get the board into DFU mode, I should connect the BOOT0 pin on the debug header to GND. So far I was unable to locate any debugging header on my OpenMV. I did find a pin labeled BOOT, but tying it to the ground doesn’t make the board go into DFU on startup. Any advice?

I can’t flash the firmware with IDE anymore or get it into DFU mode from REPL, because I flashed the OPENMV2 version of firmware and I no longer have REPL on it.

#2

Ijust realized that I’m supposed to connect the BOOT pin to RST, not to GND. This works.

#3

You should still have REPL on all firmware releases (and the dev code too).

Boot should be pulled-up to get into DFU, reset pin is pulled-up so you can connect it to reset or 3.3v.

#4

With one of them it was failing to init the sensor, and with another, failing an ADC test. It did mount as a USB disk, with ERROR.LOG file in it, but there was no REPL in either case.
Anyways, I have this solved and the board works now. Thank you for clarifying this.