last week i got some PCB from our production line which have a xmega16a4 included. When i try to programm the controllers using AVRstudio5.1 i get the device ID 0x1E 0x94 0x42 ->"Unable to enter programming mode. The read device id indicates that the connected device is an ATxmega16D4".
When i switch Avrstudio to xmega16d4 i am able to flash the controller, but the code doesnt work.
The imprint on the controller shows: