AVRdude?? It's not mentioned in the Firmware Update Wiki I was referring to: http://www.printrbottalk.com/wiki/index ... are_Update
. I think you would need to use it if you are using a ICSP programmer (which plugs into a separate header on the Printrboard), but not when programming the board via the USB plug.
I don't know about Rev E, but on Rev D and F, to get into programming mode you put the jumper on the programming pins (on Rev B, it was remove the jumper to go into programming mode and put the jumper on to go into operational mode).
AND once the jumper is in the right position, you then have to press the reset button on the Printrboard. It won't boot up into programming mode when you turn on the power; it is absolutely necessary to have the power on, the jumper on, and THEN press the reset button. You will return to normal running mode when you remove the jumper and then either press the reset button or do a power-down and power-up cycle. When you are in programming mode, it should NOT show up as a COM port. On my Win-7 computer, when I'm in programming mode, I have a line in Device Manager for "Atmel USB Devices" and under that, a line that says "AT90USB128"
Then, in FLIP, you tell it which Device like this:
Then click on the USB plug icon, and it should connect.
Of course, FLIP needs to know where to find the hex file that you want to upload. Once you have that selected, then you can "run" the process in FLIP.