29 Programmer EEPROM29

gitee address

https://gitee.com/happysoul/eeprom29

Main functions available

Read and write: 29 series eeprom 

Erase: Erase the entire eeprom to 0xff

Blank check: Query non-FF data

Verification: Compare with file content after programming

Chip information: There is still a problem with this function

Chip space problem (Atmega8a only has 8k rom space) and only supports 32-pin 29 series flash chips

Tested A29040, MX29F040, SST39F040, W29C020 (Winbond)

There is a small probability that the chip above will fail to write. You can use the erase function to restore the chip to FF before writing data. If the chip is damaged due to too many erases and writes, no matter what kind of writer, it may not be able to write normally.

I have tested using a multi-pin chip to read and write directly. Due to the output current and voltage problem, the written data is unstable. I used 595 instead of IO to directly connect the eeprom pin to provide stable voltage and current.

Developed using Arduino software and Python3+QT5 on PC

Arduino needs to add atmega8a support