说明：  本程序配置为主从模式SPI通信，并通过SPI连接EEPROM
(This program accesses a SPI EEPROM using polled mode access. The F06x MCU is configured in 4-wire Single Master Mode, and the EEPROM is the only slave device connected to the SPI bus. The read/write operations are tailored to access a Microchip 4 kB EEPROM 25LC320. The relevant hardware connections of the F06x MCU are shown here:)