Skip to content

Latest commit

 

History

History
62 lines (44 loc) · 1.34 KB

README.md

File metadata and controls

62 lines (44 loc) · 1.34 KB
Raw

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