SPI1ַ0x3434,0x3333,0x3232,0x3131,0x3030SPI1Ϊ
£
 __________________ 
|SPI1                   
|                         
|        CLK(PB1)   
|                         
|       MISO(PD5) |
|                                |
|       MOSI(PD4) |
|                         
|__________________
