Hi, I have been having an issue where it seems to me that whenever I try to upload anything from the arduino IDE to a board directly via the iscp pins (or via the old style wiring) I get Device signature=0x00000 (retrying) then it eventually fails due to invalid device signature. This has happened on 2 different boards, once when I was trying to put the arduino bootloader onto a blank arduino uno (the main chip had been wiped) using the arduino as ISP.
This has also happened when I try to upload anything over my Parallel port programmer (to a bricked board, or one with a bootloader) Note that, my parallel programmer wouldn't work at all until I installed avrdude then installed giveio 64 (now it gives me the errors that i mentioned)
in both modes, it said I can use -f to override the check for board signature, but I don't know where to add the -f
if anyone can help, that would be great, thanks:)