testsystem.bak

这是一个基于nec78f8024的led驱动程序

/*
*******************************************************************************
**  COPYRIGHT (C) NEC Electronics Corporation 2008
**  NEC ELECTRONICS CONFIDENTIAL AND PROPRIETARY
**  All rights reserved by NEC Electronics Corporation.
**  Use of copyright notice does not evidence publication.
**
**  Filename :	system.c
**  Abstract :	This file implements device driver for System module.
**
**  Device :	uPD78F8024
**
**  Compiler :	NEC/CC78K0
**
*******************************************************************************
*/
#pragma section @@CNST OPT AT 0080H
/*
*******************************************************************************
**  Include files
*******************************************************************************
*/
#include "macrodriver.h"
#include "system.h"
#include "user.h"

/*
*******************************************************************************
**  Option Byte Setting
*******************************************************************************
*/
const char OPTION80 = OPTBYTE80;	/* watchdog timer counter/illegal access detection disabled */
const char OPTION81 = OPTBYTE81;	/* POC mode is 1.59V */
const char OPTION82 = 0;
const char OPTION83 = 0;
const char OPTION84 = OPTBYTE84;	/* On-chip debug operation disabled */


/*
**-----------------------------------------------------------------------------
**
**  function name:
**		Clock_Init
**
**  Parameters:
**		void
**
**  Returns:
**		void
**
**-----------------------------------------------------------------------------
*/
void Clock_Init( void )
{
	/* fCPU = fXP */
	PCC = 0b00000000;
	OSCCTL = OSCCTL_INIT_VALUE;
	MCM = MCM_INIT_VALUE;
	RCM = RCM_INIT_VALUE;
	MOC = MOC_INIT_VALUE;	

	/* case X1 oscillation */
	if(CLOCK_TYPE == CLOCK_TYPE_EXTCRYSTAL) {
		OSTS = 0b00000101;
		/* X1 clock oscillation stabilization time wait */
		while (OSTC != 0b00011111);
	}
}