I want to read a data from a register in a network IC using RFFE protocol. I need a complete code for that. I am planning to use STM32F103C8T6.

I want an I2C Scanner program for STM32F103C8T6 Blue Pill board. i will use external pullup for the i2c clock and data, because the voltage of the devices i am going to scan is 1.8V. The software should find the address of all the devices connected i...