Hi All,

Having a real struggle writing the eeprom on a 68HC11A8. This is for a Blaupunkt RDR49, which has the security bit set, so when I read the dump it erased the eeprom.

I found a dump on this forum that supposedly will work, but having little luck flashing it. I have tried Motor11/411, Motorola Cracker 6, 6.2 and 7, all on windows XP and 98, with no joy. (All under virtualbox)

I have also tried PCBUG11, again no joy.

Latest step, I have the uP running on some stripboard, so bare minimum components. It appears to boot into special bootstrap mode OK, and accepts the talker, but no joy.

Starting to pull my hair out here... I would be mega greatful for some advice of any kind!
Cheers