EPROM-EMU-NG
exorsim
| EPROM-EMU-NG | exorsim | |
|---|---|---|
| 4 | 4 | |
| 137 | 46 | |
| 0.7% | - | |
| 6.2 | 8.6 | |
| 20 days ago | over 1 year ago | |
| C++ | C | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
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EPROM-EMU-NG
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Motorola 6800 EXORciser development system simulator
I actually used one of these things[0] during development of the DX9/7 firmware mod. I like your Mirage tools by the way! I've actually got a very battered Ensoniq Mirage I picked up for free that's badly in need of some maintenance. If I can get that running I'd love to give your firmware a try!
[0] https://mygeekyhobby.com/2020/07/05/eprom-emulator/
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Coding x86 Pong as a BIOS extension - start to finish. Feedback appreciated!
Well, the static RAM that the EPROM emulator uses has an access time of 55 nanoseconds. Here's a better description of the hardware.
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Hello, i have found myself a korg poly-800 that does not have an EPROM, and some suspicious jumpers. I need help. Help about both jumpers, why does it not work and help about EPROM and maybe hexdump.
To use an arduino you'd need to design debug and code something like this specifically to emulate the expected EPROM in the poly-800. An arduino isn't pin-compatible, you can't just shove one in there. Guessing based on the size of the dump file, it's 8k x 8bit, or 64kbit, so probably either 24 or 28 pins? Kind of boils down to how valuable you consider your own time and how much you want to spend to build something for what is basically a one-off, because nobody really needs that.
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In circuit EEPROM programming for the 6502?
I’ve recently started using the EPROM-EMU-NG to replace the EEPROM with a second SRAM chip, along with an Arduino Nano and some shift registers to be able to program the SRAM from your development station. It holds RST low on the 6502 while it’s doing its work, and can be powered by either USB or the EEPROM power rails.
exorsim
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The 8-Bit Era: Eight Iconic Processor Designs – By Babbage
On the 6800/6809: don't forget to look at the Fairlight CMI and the Qasar M8 developed by Tony Furse: the sampling synthesizer that was the sound of the 80s.
This past summer, Tony has been retrieving his 8-inch Motorola Exorciser floppies. He encouraged me to work on my Motorola Exorciser emulator- it now emulates a 6809 version of the Exorciser:
https://github.com/jhallen/exorsim
(check out the long discussions in the issues...)
- Motorola 6800 EXORciser development system simulator
- Motorola 6800
What are some alternatives?
PJON - PJON (Padded Jittering Operative Network) is an experimental, arduino-compatible, multi-master, multi-media network protocol.
6502-cpp
yamaha_dx97 - Alternative firmware ROM for the Yamaha DX9 that restores the functionality of the DX7
llvm-project - This fork of the canonical git mirror of the LLVM subversion repository adds (e)Z80 targets. Please refer to the wiki for important build instructions.
WiFiManager - ESP8266 WiFi Connection manager with web captive portal
ArduinoJson - 📟 JSON library for Arduino and embedded C++. Simple and efficient.
Heathkit_ET-3400 - Resources for the Heathkit ET-3400 Microprocessor Training System + Kansas City Standard (KCS) Cassette Data Audio Encoding / Decoding of Files