easy_io.h

凌阳条码扫描程序

#include "SPCE061A.h"
#ifndef	__EASY_IO_H__
#define	__EASY_IO_H__
//	write your header here
// easy io can be used to control the io port as 51 microsoft, but the io port
// can't be worked in the reverse model.
/*#define setb(P_IOA_Data,t,k);     \
      t=*P_IOA_Data; \
      t=(0x01<<k) | t ; \
      *P_IOA_Data=t;     // *P_IOA_Data=t;            
#define clearb(P_IOA_Data,t,k)     \
      t=*P_IOA_Data; \
      t=(0xfffe<<k) & t ; \
      *P_IOA_Data=t;     // *P_IOA_Data=t; 
#define setb(P_IOB_Data,t,k)     \
      t=*P_IOB_Buffer; \
      t=(0x01<<k) | t ; \
      *P_IOB_Data=t; 
#define clearb(P_IOB_Data,t,k)     \
      t=*P_IOB_Buffer; \
      t=(0xfffe<<k) & t ; \
      *P_IOB_Data=t;     */
extern void Setb(int *addr,unsigned int k,unsigned int bit);
#endif