I’m using an old Arduino (Pro 168 & 16Mhz) like ISP programming device.
I always use it to burn Pro 168 and 328 with any problem (DIP).
Now I’m using it to burn a few TQFP 328 P-AU.
The programming task goes great, i mean the blank chip is erased and burned with the PRO bootloader.
But using this new arduino I noted some issues at the SPI port (resets the uP), so doing some debugging procedures I discover that is a short circuit.
For some reason if I set the SCK port this issue appears, is like a short circuit inside the uP.
The last trick that I get is use this new TQFP Arduino as ISP. To program others uP. This trick do not give me any result I can use the new Arduino as ISP.
The last idea that i get is use the parallel port to burn directly this blanck TQFP part and then load the ISP sketch on it to get a TQFP Arduino ISP.
So let me know if my procedures are correct, or if I’m missing some thing.