Hi All,
I have designed my own board using the ATmega32U4 and would like to bootload it with the Arduino boot loader from SparkFun found here. I have programed in the boot loader using my ATMEL-ICE though ATMEL studio 7. when I plug in the USB cable into my board it is detected an an unknown device as shown in the device manager below:
Strangely enough when I plug my ATMEL ICE into the board and read the fuse bits using ATMEL studio 7 the computer detects the board as an Arduino as show in the device manager below. once detected I can open arduino IDE and program the board without issue. However when i disconnect the ATMEL ICE the board is re-connected as an unknown device. Any ideas what i have done wrong?