在STM8芯片上对24C02进行读写，完成对IIC的操作(24 our fleet on STM8, speaking, reading and writing)

实现SPI FLASH 通信，首先配置GPIO,然后初始化SPI FLASH DRIVER,获得FLASH ID,接着就可以读写SPI FLASH 了(Implement SPI FLASH communications, first configure GPIO, then initialize the SPI FLASH DRIVER, get FLASH ID, and then they can read and write SPI FLASH up))