I have a problem with Serial Port maybe you can give me some advice.
I have one Arduino Mega 2560 that has communication with a C# application. (C# Application runs over Win XP).
The communication is working well, but after some time I recive the error "USB device attached to the equipment didn't work" and I lose the communication. (If I unplag and plug the Arduino USB I get communication again). On the PC I see that the Arduino Mega 2560 is still detected.
I've tried to change the USB cable and the Arduino, but I still have the problem.
Electrically, I have the GND from PC and Arduino connected.
Anyone have some idea to solve it or some test to do?
Thank you and best regards,