?? epphal.c
字號:
/*本文件定義硬件層函數,根據具體的原理圖需做適當修改*/
#ifdef __C51__
#include <reg51.h> /* special function register declarations */
#include "epphal.h"
#include "d12ci.h"
#include "mainloop.h"
extern EPPFLAGS bEPPflags;
void outportb(unsigned char port,unsigned char val)
{
unsigned char xdata *ext_address;
MCU_D12CS=0;
ext_address=0xff00 + port;
*ext_address = val;
MCU_D12CS=1;
}
unsigned char inportb(unsigned char port)
{
unsigned char c;
unsigned char xdata *ext_address;
MCU_D12CS=0;
ext_address=0xff00 + port;
c = *ext_address ;
MCU_D12CS=1;
return c;
}
#endif
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