I’m not good at English.
I received PANDA III and COBRA III last weekend.
At first time, it worked well.
But I’ve got USB connection error with PANDA III after uploaded my code in Visual Studio 2015 with MF 4.3.
When I connect PANDA to PC using micro USB port, my PC plays device connection sound, and a few seconds later,
the Device Manager reports Device Descriptor Request Failed with error code 43.
I think it’s not USB power problem. there no connection problem with my other COBRA III, and PANDA also connected well before.
To reset firmware, I tried to switch to GHI Bootloader.
Then Device Manager detected GHI Bootloader (COMxx) well, but there no response from device. (Loader Update in FEZ Config, putty terminal too.)
The code that I uploaded has a StackOverflowException, I don’t know this code causes connection problem.
The only thinkg I did was I connected GND, COM1 TX, RX pin to my drone for 3.3v TTL commuication.
What can I do in this situation?