main.c

e1604b 液晶显示模块驱动程序 包括proteus的仿真图

/*
****************************************************

		

****************************************************
*/


#include <reg52.H>
#include "Typedef.H"
#include "UserDef.H"
#include "Keypad.H"
#include "Disp.H"
#include "Cacu.H"


/*  全局变量 */
INT8U KeyVal = VK_NULL;		//按键值
bit bDispRef = FALSE;		//信号灯：显示更新时间到
bit bKeyScan = FALSE;		//信号灯：键盘扫描时间到

/*  函数 */
void KeyboardDeal(void);


/***************************************

	

****************************************/
void main(void)
	{

	TMOD = 0x11;
	TH0 = (unsigned char)(KTDLY>>8);
	TL0 = (unsigned char)(KTDLY);
	TR0 = 1;
	
	ET0 = 1;

	EA = 1;

	DispInit();

	DispCls();
//	DispIntRight(0);	//显示效果示范
//	DispStr("Hello!",0,0,0);
  	DispFloat(0,0,0,8);
//	DispInt(123,0,0,4);

	while(TRUE)
		{
		/* 键盘 */
		if (bKeyScan == TRUE)
			{
			bKeyScan = FALSE;
			KeyboardDeal();
			}
		
		/* 显示扫描刷新 */
		if (bDispRef == TRUE)
			{
			bDispRef = FALSE;
			DispRef();
			}
		}
	}




/*************************************

	定时器中断程序 

**************************************/
void int_t0(void) interrupt 1 using 1
	{
	static int cnt = 0;

	TH0 = (unsigned char)(KTDLY>>8);
	TL0 = (unsigned char)(KTDLY);

	cnt ++;

	/* 键盘扫描信号灯  */
	if ((cnt % T_KEYSCAN) == 0)
		{
		bKeyScan = TRUE;
		}

	/* 显示扫描信号灯  */
	if ((cnt % T_DISPREF) == 0)
		{
		bDispRef = TRUE;
		}
	}


/*************************************

	键盘处理 

**************************************/
void KeyboardDeal(void)
	{
	INT8U n;
	float res;

	n = Keypad_GetKey();
	if (n != KeyVal)
		{
		KeyVal = n;
		if (n != VK_NULL)
			{
			DispCls();
			if (CacuInput(n,&res) == TRUE)
				{
				DispFloat(res,0,0,8);
				}
			else
				{
				DispStr("Error!",1,0,TRUE);
				}
			}
		}
	}