I have a pololu A-Star micro ac01a.
I have previously programmed successfully over the USB cable from Arduino 1.0.4 IDE. When I plugged in, Win7 32bit would recognize the USB COM port (high number, 21 or 25) and then I could program.
Recently, if I try to program over USB, the process will die. I select the A-Star micro’s USB COM port, click “Upload” and I get a rapid (5Hz-10Hz) green LED blink. The Arduino IDE kicks an error message stating “Couldn’t find a Leonardo on the selected port. Check that you have the correct port selected. If it is correct, try pressing the board’s reset button after initiating the upload.”
From that point on, the A-star micro is inaccessible. However, if I reprogram over an ICSP connection using a pololu PGM03a, it comes back to life, and I can use the native FTDI serial USB interface on the A-Star again.
Any thoughts?