Programming EPROM

Hello, All! I promised for a long time, but there was no time to do it... Programmer - just soldered the sockets to the BB55 ports on the Profi, /CS - started with CDOS modem (#EF:D7 to avoid adding an extra port, there is a line before the subject disable) When recording, the programming voltage must be applied (1 pin 27512) When reading, you need to apply ground there (hook up the ground<->12V switch) You need to turn off turbo mode when recording (or maybe not - I didn’t check it in turbo entry) STROB EQU port to which /CS from ROM (#EF) is connected CSSET EQU byte to activate /CS (#00) CSRES EQU byte for reset /CS (#80) ; We should have started #FE on some beat, but we didn’t think of it right away. LD A,CSRES OUT (STROB),A LD A,#80 ; OUT (#7F),A ; programming BB55 === here is a software program that in a cycle (65536 times) takes a byte from memory and makes CALL SVROM, then increments HL accordingly... === ;at the input to HL - the ROM address, in A its contents SVROM PUSH AF LD A,H OUT (#3F),A ;high byte of address LD A,L OUT (#5F),A ;low byte of address DEFS 5.0 ;delay POP AF OUT (#1F),A ;output byte (which needs to be flashed) PUSH HLCALL NUM ;prints the address on the screen so it doesn’t get boring LD A,CSSET OUT (STROB),A LD HL,0 ;delay LD DE,0 ;DURATION - 1 ms LD BC,164; LDIR; LD A,CSRES ;;; This is what we screwed up in theory ;) OUT (STROB),A ;;; but it works, you can't remove it NOP ;PAUSE;;; tried it, but it should work LD A,CSSET ;;; without this... OUT (STROB),A ;;; LD HL,0 ; LD DE,0 ;DURATION - 3 ms LDBC,499; LDIR; LD A,CSRES OUT (STROB),A POP HL RET PS. I can summarize the entire source, it contains reading, CRC, comparison and various glitches ;) but the interface itself, recording, CRC and purity check work... Maybe someone will add it... I will now be assembling a programmer on a PC... Best regards, Evgeniy aka EVP.