general.c

LCD及键盘、RS232通信控制源代码、采用keil c51环境编译

/*********************************************************************************
*                                                                                *
*	FileName:	General.c                                                        *
*	Function:	General function                                                 *
*	SystemName:	NDS18000-BSC                                                     *
*	CPU:		ATMEL AT89C52                                                    *
*	Startup:	14/Oct/2002                                                      *
*	Author:		XuYiBo                                                           *
*                                                                                *
*********************************************************************************/
#include <intrins.h>

#include "NDSBSCUI.H"
#include "General.h"
////////////////////////////////////////////////////////////////////////////////////
/***********************************************************
*                                                          *
*	delay 8*ucDelayCycle CYCLE                             *
*                                                          *
***********************************************************/
void DelayCycle(unsigned char ucCycle)
{
	for(;ucCycle!=0;ucCycle--)
	{
		_nop_();
		_nop_();
	}
}

/***********************************************************
*                                                          *
*	delay ucTime(ms)                                       *
*                                                          *
***********************************************************/
void DelayTime(unsigned char ucTime)
{
unsigned char ucTmp;
	for(;ucTime!=0;ucTime--)
	{

#ifdef SYSTEMCRYSTAL
#if SYSTEMCRYSTAL == 11059200
		for(ucTmp=0;ucTmp<135;ucTmp++)
#elif SYSTEMCRYSTAL == 12000000
		for(ucTmp=0;ucTmp<124;ucTmp++)
#elif SYSTEMCRYSTAL == 18432000
		for(ucTmp=0;ucTmp<80;ucTmp++)
#endif
#else
		for(ucTmp=0;ucTmp<135;ucTmp++)
#endif
		{
			_nop_();
			_nop_();
			_nop_();
			_nop_();
			_nop_();
		}
	}
}