程序功能：PC机通过串口可以控制从EEPROM的指定地址中读出一个

字节的数据，或者向指定地址写入一个字节的数据

特别说明：在PC机发送EEPROM内的存储地址或者是写入数据时，必须

使用十六进制发送，而在发送读写控制命令时要使用默认

的发送ASCII码的设置，这点要注意，否则操作无法完成-Program features: PC, can be controlled through the serial port specified address from the EEPROM one byte of data read or write a byte to the specified address data in particular: the PC sends the memory address of EEPROM or write data must be used to send the hex, and read and write control command is sent to send ASCII code to use the default settings, it point to note, or can not be completed