实验目的：熟悉SPI总线以及9346EEPROM的读写，RBO键按下时把DATA和DATA2写入到EEPROM中以EE—ADDR为地址的单元内，完成后，单个数码观显示“9”做为完成标志，RB1键按下时，读取EEPROM中以EE—ADDR为地址的单元，并送数码管显示-Experimental Objective: 9346EEPROM familiar with the SPI bus as well as reading and writing, RBO key press DATA2 when DATA and EEPROM to write to the EE-ADDR in the unit for the address, after the completion of the digital concept of a single show " 9"　as the completion of signs, RB1 key press when the EEPROM read in the EE-ADDR for the address unit, and sent to a digital display