數(shù)據(jù)驅(qū)動(dòng)、堅(jiān)持為客戶提供有價(jià)值的服務(wù)和內(nèi)容
#include "iom8535v.h" #define _CPOL 1 #define _CPHA 0 #define SCK_IO DDRA|=0X01 #define MOSI_IO DDRA|=0X02 #define MISO_IO DDRA&=0XFB #define SSEL_IO DDRA|=0X08 #define SCK_D(X) (X?(PORTA|=0X01):(PORTA&=0XFE)) #define MOSI_