base_io.c

来自「USB驱动使用比较详细的一个例子」· C语言 代码 · 共 17 行

#include <reg51.h>	//SFR declarations
#include "base_io.h"
#include "mainloop.h"

extern EPPFLAGS bEPPflags;

void outportb(unsigned int Addr,unsigned char Data)	//send to D12
{
	*((unsigned char xdata *)Addr)=Data;
}


unsigned char inportb(unsigned int Addr)	//receive from D12
{
	return *((unsigned char xdata *)Addr);
}