8255a.h

KeilC51开发,51单片机与E2PROM的接口程序,并且有串口与液晶的输出.

#include <absacc.h>

#define PortA XBYTE[0XE000]
#define PortB XBYTE[0XE001]
#define PortC XBYTE[0XE002]
#define Commd XBYTE[0XE003]

void Init8255A();
void SelectForm0(char, char, char, char);
void SetCBit(char, bit);
void SelectForm1();
void SelectForm2();