Introduction - If you have any usage issues, please Google them yourself
The routine use of analog I2C GPIO Timing serial EEPROM read and write, and test the read and write speed. Core file: b i2c_gpio.c/.h: I2C underlying protocol implementation code (all I2C devices are available) b eeprom_24xx.c/.h: 24XX serial EEPROM driver demo_i2c_eeprom.c/.h: Demo EEPROM write The main modification method SCL clock frequency: Modify b i2c_gpio.c the function static void i2c_Delay (void)