I was having issues programming my coolrunner, and I wanted to rule some things out, so the first thing I wanted to rule out was the power. I have not bought a connectivity kit in a while, I still have the old ck3 lite, but I bought the xilinx jtag cable, which came with a ck3 power cable. When I powered the coolrunner with that and tried to program, it would always fail. I then soldered the 3v3 from the xbox to the 3v3 on the coolrunner, an the GND to the GND. When I plugged in my xbox, the lights on the coolrunner would come on when it was set to NOR, but not PRG, even when I turned it on. I then thought, Hmm, isnt the VCC and GND on the jtag connection for 3v3 and GND? So I soldered the GND to the GND on the jtag connection so that the cable a=could still be connected, and the same for the 3v3 to VCC. When I plugged in the xbox with the wires soldered like that and the coolrunner set to PRG, the lights both immediately turned on. Does this mean the correct voltage is being received? Please reply, thanks.
RGH Coolrunner Question
- Thread starter LED-Jtagz
- Start date
I believe all the "Norm" or "Prg" setting does is set which connector the board gets power/ground from. When I did mine I used the 360 for power and NEVER switched the board from Normal and it programmed just fine. Hope that helps 
And by used 360 for power, I mean I wired the power and ground wires to the chip as they would be once the chip is installed, and then plugged the power brick in.
And by used 360 for power, I mean I wired the power and ground wires to the chip as they would be once the chip is installed, and then plugged the power brick in.
It powers fine now, I just have no idea if it will program. When I used the 3v3 and gnd points on coolrunner, it would not power when it was set to prg, so I soldered gnd to gnd on jtag. check the pics:
http://img819.imageshack.us/img819/8674/dscn0032kv.jpg
http://img207.imageshack.us/img207/3446/dscn0031h.jpg
http://img716.imageshack.us/img716/290/dscn0030h.jpg
http://img205.imageshack.us/img205/885/dscn0029m.jpg
http://img205.imageshack.us/img205/7497/dscn0028kg.jpg
http://img819.imageshack.us/img819/8674/dscn0032kv.jpg
http://img207.imageshack.us/img207/3446/dscn0031h.jpg
http://img716.imageshack.us/img716/290/dscn0030h.jpg
http://img205.imageshack.us/img205/885/dscn0029m.jpg
http://img205.imageshack.us/img205/7497/dscn0028kg.jpg
I think i understand. the program side is for when you have the coolrunner powered by the jtag cable and nor is when it is powered by the 3v3 and gnd cables
you cannot program with ck3 lite, that is power source. I will try with jtag cable with power from console because i think ck3 lite does not supply sufficient power.
those are to power it and they either did not correctly supply power or my official jtag cable is f**ked up