avr max531程序#include #include #define uchar unsigned char #define uint unsigned int #define DING PORTA|=BIT(0) #define DINL PORTA&=~BIT(0) #define CLRG PORTA|=BIT(1) #define CLRL PORTA&=~BIT(1) #define SCLKG PORTA|=BIT(2) #define SCLKL PORTA&=~BIT(2) #define CSG PORTA|=BIT(3)