builded 3 tapecart diy devices.
everyone has the same problem.
installed on c64 unit and loaded flashtool.prg.
after few seconds says "tapecart not found"
the led is not lightning at all....should it?
i have measured voltages around the pcb and can found on many places and on atTiny chip also.
any suggestions to look what is wrong?
i have many times looked at the fuses that they are right when programmed tapecart.hex and with verify it passes.