Hello, I just received my JTAGICE mkII and started playing around with it. I am using a ATMega644, which has a JTAG enable fuse bit. Is there a way to enable this fuse bit with the JTAG programmer? The only way I was able to enable this fuse bit was by using ISP.
The reason I want to enable the JTAG fuse bit with the JTAGICE mkII is because I want to build boards in the future with only one programming header. I don't want to make 2 headers, one for ISP to enable the JTAG fuse bit, and the other for JTAG.
When I try to access the ATMega644 with the JTAG fuse bit disabled, it asks me if I want to retry with external reset enabled. I click "yes" and it says "A problem occured when executing the command. See the command output for more info." I could not find where the command output log was located. I also have my reset jumper removed (I tried both ways, neither worked. The manual in AVR studio says to remove the reset jumper though) and the 6 pin ISP cable removed. I was able to program the chip with the JTAGICE mkII after I enabled the JTAG enable fuse with ISP. I am using the Expansion Port 0 on the STK500 with the breakout header board. I verified that Pin 1 on the JTAGICE mkII is connected to pin 1 of the breakout header board.
Thanks for any help!