my openmv works with PLC by rs485, then i plug usbcable in openmv for connecting with pc.
but the ide can’t find the openmv.
neither did the win explorer( have not usb disk).
it didnot happen before.
Is it alive still? And which camera is it? Putting it into DFU mode will verify it’s not destroyed.
it is openmv4 h7 plus.when i cut off the power of PLC,and reconnect openmv only with usbcable,it works normallly.
it is mazing.
when i turn on the power of PLC,the connecting is broken .
Okay, I’m not really able to debug this for you as it’s an electrical issue related to attached equipment.
Do the devices share grounds? rS485 doesn’t require that and you’d want to avoid it.