![]() ![]() ![]() That means, remove the EPROM from its host computer, subject it to 20-30min of UV light exposure, program it with EPROM programmer, re-install in host computer. ![]() Imagine you are developing software (well, firmware more likely) and you need to change the “program” in your EPROM memory. By its nature, this type of memory is “read only” and to change its content you need to erase it with UV light. So, what is the issue and why would one need an EPROM emulator. See below: Example of EPROM chip used in Commodore 64 “test” cartridge. Those EPROMS typically come as ICs in DIP28 package with a “window” in the middle used to “erase” the memory using UV light. And when I say “computers” I refer to the 80s eight bit machines (Commodore, Amiga ZX Spectrum, Tandy etc.), but also other computer like devices, controllers etc. EPROM or Erasable Programmable Read- Only Memory is a type of programmable read-only memory that is used to store program in “computers”. Well, before I explain what an EPROM Emulator is, I should first explain what an EPROM is. I recently posted an article that shows how people ended up using the emulator, check it out there: EPROM emulator NG use cases. As always, all source code and design documents are on my github page: EPROM-EMU-NG on GitHub ![]()
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