I have a 20 year old project that has come back to my desk using an MC68HC811E2FN. It has no ROM and 2k EEPROM. I've lost my old programmer. Even if I had it, I wouldn't have the software. It probably ran on windows 3.1, maybe W95, maybe DOS. LOL. Is there an inexpensive programmer for these chips around?
I have 4 chips programmed with one of two variations of the firmware. I can send out one of those to make the repair needed now, but I want to read the firmware off the chips before I mail them. I don't think it exists anywhere but on these 4 pieces and the other ones in use.
I can build the programmer if there is a DIY type project available. I have access to an RS232 port on a PC running Ubuntu, or I can purchase and RS232 USB converter for PC's running windows 8 down to XP.
Thanks for any help or leads.