Hello everyone!
I've been following this topic for a while now and managed to create this device for myself.
P1 and P2 work like clockwork.
When working with P3, there's an unresolved issue with exiting programming mode...
I also added the ability to start from a previous point, in case the process ...

Hi!
Maybe someone has a processor M30835 and eprom 93C86 dump?
Much needed for experiments.
Accidentally ruined the original.