Well, the uC has its own program, and i could write an routine that reads from the RS232, and saves that to the SRAM. and then when i want to burn an EPROM it selects the VPP voltage and then also starts strobing the PGM pin, and verify its result, and after 4 failed attemps it stops with burning.

But i think in this project ill only implement reading from the eprom first,
maybe later ill add the write sequence.