This repo contains a simple library and an example to use a STM as I2C peripheral (deprecated term: „slave“). It allows you to define a register map with auto-incremental read and write requests.
Before you include and set up the library as below, the I2S hardware peripheral has to be configured (e.g. via CubeMX). This is not covered here.
#include "i2c_slave.h"
#include "i2c_registermap.h"
i2c_slave_init_t i2c_init = {.hi2c = &hi2c1, .error_handler = Error_Handler};
hi2c1 and Error_Handler may be replaced with the interface and error function of your choice.
The interface can be started via
I2C_Slave_Init(&i2c_init);
- Remove deprecated „slave“ term!
- Improve register mapping