d12hal.c

来自「Comlete files for fullfile the slave USB」· C语言 代码 · 共 54 行

/*
//*************************************************************************
//
//                  BASBA   P R O P R I E T A R Y
//
//           COPYRIGHT (c)   2003 BY BASBA USA.
//                     --  ALL RIGHTS RESERVED  --
//
// File Name:	EPPHAL.H
// Purpose:		hardware dependent I/O access to PDIUSB12
// Author:		Shuming Yu
// Created:		10 May 2003
// Modified:
// Revision:	1.0
//
//*************************************************************************
*/

#include <reg51.h>                /* special function register declarations   */
#include "d12hal.h"
//#include "cmds.h"
#include "mainloop.h"

extern EPPFLAGS bEPPflags;

void outportb(unsigned int addr, unsigned char val)
{
	unsigned char xdata *ext_address;

	MCU_D12CS = 0;

	ext_address=0x00 + addr;
	*ext_address = val;

	MCU_D12CS = 1;
}

unsigned char inportb(unsigned int addr)
{
	unsigned char c;
	unsigned char xdata *ext_address;

	MCU_D12CS = 0;

	ext_address=0x00 + addr;
	c = *ext_address ;

	MCU_D12CS = 1;

	return c;
}