We’d bought an OpenMV a few years back from Sparkfun electronics (label = OpenMV MV3R2 US-MF-002 OV7725-M7 05/20/2017), but hadn’t had chance to test & shelved it. With a new need, tried getting it to connect today. I’m having issues getting the IDE to see it.
I installed IDE (Ver 2.9.7 on my windows 10 laptop). When plugged into my PC via a known good (data+power) USB cable, I heard my PC recognize it and it showed up as a USB drive on my PC. However, when I press the cable-looking ‘connect’ button in the OpenMV IDE lower left (Ctrl-E), I get a message “No OpenMV Cams found!”. When I click OK it asks Do you have an OpenMV Cam connected and is it bricked? If I press “Yes”, and select the Open MV Cam M7 (STM32F765/67) and press OK it ask if I want to erase the internal file system, I’ve tried both “Yes” and “No”. In either case, it seems to try to erase the PC by first asking me to unplug/replug the USB cable. When I do so the green LED blinks continuously and the IDE goes into Erasing… mode, but always ends in a “Timeout Error!” with the green LED still blinking.
I read some forum topics and thought maybe updating the bootloader was the thing to do. I chose the Tools… bootloader… menu and selected the file: “…OpenMV IDE\share\qtcreator\firmware\OPENMV3\firmware.bin” and pressed “Run” button. Again it continued with an erasing… while blinking green, with another timeout failure. This time, now I’m seeing no USB drive on my PC upon re-pluggin in the PCB USB cable (but still hear my PC beep like its recognizing a USB device), and after a couple seconds the blinking green on the board stops. It doesn’t show in the Windows Device manager as USB device anymore either.
The IDE seems to know when I plug in the cable as it moves from waiting to erasing mode, but can’t get it to connect and I seem to be progressing backwards.
Wondering if there is a way to get this board to a state where it can connect or if maybe its too old for the new IDE?