EEPROM Programmer
Utility to read and write I2C EEPROM memory devices.
Microcontroller
Using a STM32 Black Pill (stm32f103c8)
and the ST HAL library.
Microcontroller connections
Only the I2C2 bus is used
| STM32F103 | Function |
|---|---|
| PB10 | SCL |
| PB11 | SDA |
Important note:
Aditionally, a 10k pullup resistor to Vcc is required in both SDA and SCL.
Memory
Supported I2C memories are:
- 24LC16
- 24LC64
- X24645
- 24LC256
Memory electrical connections
| EEPROM (DIP-8) | Connected to |
|---|---|
| 1 | GND |
| 2 | GND |
| 3 | VCC |
| 4 | GND |
| 5 | SDA |
| 6 | SCL |
| 7 | GND |
| 8 | VCC |
Libraries used
ST Microelectronics HAL
Using the ST HAL library for I2C, USB, USB CDC, Clocks and GPIO
Serial port
USB CDC Class implemented thanks to philrawlings modified version of the ST CDC example
https://github.com/philrawlings/bluepill-usb-cdc-test
Command Line Interface
The PC side CLI is made with Qt using QSerialPort library among others.
Run eeprom-programmer -h to get command line options
Special thanks
'sijk' for his implementation on Unix signals in Qt
https://github.com/sijk/qt-unix-signals
'user948581' on Stack Overflow for his implementation on Windows signals handler
https://stackoverflow.com/questions/7581343/how-to-catch-ctrlc-on-windows-and-linux-with-qt