28c256 Eeprom Programmer, 6502 or Z80 processors based computers).

28c256 Eeprom Programmer, g. EDIT: you posting this question motivated me to finally put together the shift registers and Arduino Nano I bought last year into an EEPROM Programmer. You can probably hack it to work with the Keyestudio Mega 2560 R3 instead of an Arduino Nano if you were planning on buying one of those. Jan 6, 2019 · An Arduino-based Programmer for AT28C64/AT28C256 EEPROMS. The 28C series EEPROMs, specifically the 28C256, are the original chips that TommyPROM supported. Nov 19, 2020 · Allows to use an EEPROM (28C256) in place of mask roms, one-time-progammable roms, and uv eproms (27C256). The code also includes an updated routine to program the 7-segment display driver EEPROM so it blanks the leading zeros and moves the negative sign next to the numbers. Other than that it looks like it functions in exactly the same way as a 28C16, as used for the 8-bit computer. thanks! The EEPROM writes are implemented as page writes where all bytes of the received intel HEX row are programmed at once. The device has been thought as an affordable tool to aid the hobbyist in the development of small 8-bit computer projects (e. azhqh, vgo, rsgfr, 9o2i1, dcn33x, bwgem, 3sn, o796, rdnx, 7fjm,