eeprom-programmer
An Arduino Nano sketch and schematic for an Atmel 28cx programmer. (by yoppeh)
TommyPROM
Simple Arduino-based EEPROM programmer (by TomNisbet)
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| eeprom-programmer | TommyPROM | |
|---|---|---|
| 3 | 34 | |
| 9 | 138 | |
| - | - | |
| 0.0 | 6.5 | |
| about 2 years ago | 7 days ago | |
| C++ | Logos | |
| MIT License | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
eeprom-programmer
Posts with mentions or reviews of eeprom-programmer.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-08-07.
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Problem with creating an Arduino EEPROM programmer
Those chips can be a little finicky. I have some different code from Ben’s that may be useful. https://github.com/yoppeh/eeprom-programmer
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Is TL866II worth buying?
Building your own EEPROM programmer can be fun and a good learning experience. Ben has a video for that too. I have some Arduino software that will let you xmodem a binary image straight to the EEPROM.
- If you want to modify Ben's eeprom programmer to work with the one for the 6502, you only have to move 2 existing wires and add 4 address wires. Zero changes to software!
TommyPROM
Posts with mentions or reviews of TommyPROM.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-05.
- Antique telecommunications device with keypad, speaker, and printout found at shop with a note attached
- EEPROMs not working
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Cannot disable write protect on AT26C64B EEPROM
I have tried the script from u/nib85 from his github here (https://github.com/TomNisbet/TommyPROM/blob/master/unlock-ben-eater-hardware/unlock-ben-eater-hardware.ino) His code is for the 256k rather than the 64k version and I changed the sequence of writes as required by the datasheet for the 64k version as follows:
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TommyPROM Help
Oh ok. I did upload the sketch from the arduino ide, but I was following the documentation at https://tomnisbet.github.io/TommyPROM/.
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New eeprom, different problem... All 'ff's...
Which chip are you using? If it is the 28C256 and you built the Ben Eater programmer, try this sketch: https://github.com/TomNisbet/TommyPROM/tree/master/unlock-ben-eater-hardware
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Problem with Arduino based EEPROM programmer
Also, although not necessarily the root cause based on the symptoms you are describing, the AT28C256 comes with a software data protection feature which, if it was somehow enabled prior to shipping, needs to be disabled. Ben's EEPROM code does not unlock these chips. If your testing reveals that the EEPROM was in fact not written to, then one option would be to implement u/nib85's TommyPROM arduino programmer, which supports unlocking. It uses a few different chips, but you can make it work with Ben's hardware. There is a section somewhere in the hardware notes that speaks to that.
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Continuous eeprom problems
Here is one of th3m that works with your setup: https://github.com/TomNisbet/TommyPROM I will search for the other one and send. Also, read the README of the github repository
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After writing my EEPROM I only read ff | ATMEL AT28C16 15PU 1701
When I encountered the problem I tried to find the solution and found references to TommyRom. After trying I had the same behaviour then before. From the Datasheet I couldn't find mutch about extra steps to writing the Chip. I haven't build the first thing where Ben programmed the Chip manually, but I will recreate it next.
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Buying the components in Europe
Really not sure about that programmer... according to what I could read here it mostly supports micro-controllers and serial EEPROM chips. If you only run on Windows, then the XGecu T48 would be a safer bet, IMO. One of XGecu's official distributors has a store on AliExpress under the name of 'XGecu Official Store'. Most reliable source if you are willing to wait a bit. If you run Mac OS or Linux, then the older TL-866II-Plus model is best for compatibility as the minipro open source software works with it on these platforms. Still available out there, but good chance it will be a clone. A third option is a breadboard/arduino version like the TommyPROM from u/nib85.
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Programming EEPROM
I just added support for these chips to my programmer. Take a look at this project if you want to see some working code: https://github.com/TomNisbet/TommyPROM
What are some alternatives?
When comparing eeprom-programmer and TommyPROM you can also consider the following projects:
MiniCore - Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB
eeprom-programmer - Arduino EEPROM programmer
rosco_m68k - Design, documentation and software for the Really Old School Computer (M68K)
Xbox-EEPROM-Utility - Original Xbox EEPROM Dumper based on an ESP32 and ESP8266.
jtag2updi - UPDI programmer software for Arduino (targets Tiny AVR-0/1/2, Mega AVR-0 and AVR-DA/DB MCUs)
TommyPROM-PCB - PCB design files for the TommyPROM project (https://github.com/TomNisbet/TommyPROM)