First post, by keenerb
Probably the wrong forum, but it's (tangentially) vintage computer related...
I've built one of Sergey's combo floppy disk/serial 8-bit cards and it uses an Atmel 28C64 eeprom to store the bios.
I have yet to find a single programmer that lists this chip as a "supported" device except one that was $800.
Any pointers on how to go about this? Should I be worried about finding this specific chip listed in a compatibility matrix, or does it fall under a certain type/class of chip that might be compatible?

