Absolutely no apology necessary. Please don't feel bad. My experience and that of many others that I have talked to including, I think, the OP of this thread, is one of frustration with the R3 2560 and its union with the 16u2. My post was not, at least in my case, meant to be directed towards anyone. Especially someone such as yourself willing to help out...so if anything I owe you an apology.
So, I have attached three screen shots taken from the AVR Studio 6 Device Programming menu. These snap shots could have just as easily been taken from any of the Atmel Studio IDE's. The first snapshot represents current interface settings, the second represents current fuse settings and the third represents current lock bit settings. These settings were read from the board using the AVRISPmkII. The AVR One set in ISP mode reads the exact same thing.
When I try to flash any hex file it always returns the same confirmation indicating that the program has been transfered correctly and I should be ready to go, however, this is never the case since I immediately de-activate the Jungo devices, then pull up any of a number of Arduino IDE's and try to program the board via serial USB connection. Inevitably I receive a string of timeouts...I receive the same response when I go to a command prompt and run avrdude. My goal is simply to get the 2560 and 16u2 back into a start state and load a stupid simple program such as blink.
I am able to program the 2560 (bypassing the 16u2) with the ISP both the AVRISPmkii and the AVR One. Any assistance would be GREATLY appreciated.
Thanks!!
16u2Settings.rar (85.2 KB)