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Using EPROM Images without EPROMS

A project log for PicoRAM 6116 - SRAM Emulator & SD Card Interface

Give your Microprofessor MPF-1B (and other machines) a versatile SD card interface - no more cassettes!

michael-wesselMichael Wessel 07/08/2024 at 14:210 Comments

The U7 socket on the Microprofessor MPF-1 is usually occupied by a 2716 EPROM containing user programs (or Tiny BASIC). However, by cutting a few PCB traces and setting the J1 jumper accordingly, it can also accommodate an additional 2 KBs of memory, using a 2nd 6116 SRAM. Hence, PicoRAM 6116 can be used instead of a standard 2716 user EPROM in U7. I got a couple of programs in a 2716 EPROM BIN image from the user DISCMIX on the German Classic Computing (Vintage Computer) Forum. In this video we are running his programs via PicoRAM 6116, and I also demonstrate how to convert EPROM BIN images such as the ones I got from DISCMIX into a PicoRAM digestible HEX format.

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