pdc605.c

PDC605-HT1621的驱动程序PDC605-HT1621的驱动程序

/************************************************************
*PDC-605液晶显示驱动程序
*Author:昌宁
*2005-4-9 11:10
*************************************************************/
#include"PDC605.h"

unsigned char code num[17] = {0xbe,0x06,0x7c,0x5e,0xc6,
							  0xda,0xfa,0x0e,0xfe,0xde,
							  0xe6,0xb0,0x20,0x02,0x00,//H,L, 前后冒号
							  0xee,0xa8,};//R,T


extern uint Temperature;

extern void delay(uint n);
extern void TemperatuerResult(void);

/************************************************************
*Function:LCD的初始化
*parameter:
*Return:
*Modify:
*************************************************************/
void LcdIni(void)
{
	LcdCs = 1;
	LcdClk = 1;
	LcdData = 1;
	LcdWriteCom(sys_en);
	LcdWriteCom(lcd_osci);
	LcdWriteCom(lcd_bias);
	LcdWriteCom(lcd_0n);
}
/************************************************************
*Function:向LCD发送0或1
*parameter:
*Return:
*Modify:
*************************************************************/
void LcdWriteBit(bit i)
{
	LcdClk = 0;
	LcdData = (i==1)? 1:0;
	LcdClk = 1;
}
/************************************************************
*Function:向LCD写命令函数，100
*parameter:
*Return:
*Modify:
*************************************************************/
void LcdWriteCom(uchar aa)
{
	uchar i,tt;
	
	LcdCs = 0;
		
	LcdWriteBit(1);
	LcdWriteBit(0);
	LcdWriteBit(0);
	
	for(i=0;i<8;i++)
	{
		tt = aa & 0x80;
		if(tt == 0x80)
			LcdWriteBit(1);
		else
			LcdWriteBit(0);
		aa <<= 1;
	}
		
	LcdWriteBit(0);
	LcdClk = 1;
	LcdCs = 1;
}
/************************************************************
*Function:向LCD写数据函数，101
*parameter:
*Return:
*Modify:
*************************************************************/
void LcdWriteData(uchar aa,uchar bb)
{
	uchar i,tt;
	
	LcdCs = 0;
		
	LcdWriteBit(1);
	LcdWriteBit(0);
	LcdWriteBit(1);
	aa <<= 2;
	for(i=0;i<6;i++)//写地址
	{
		tt = aa & 0x80;
		if(tt == 0x80)
			LcdWriteBit(1);
		else
			LcdWriteBit(0);
		aa <<= 1;
	}
	for(i=0;i<8;i++)//写RAM值
	{
		tt = bb & 0x80;
		if(tt == 0x80)
			LcdWriteBit(1);
		else
			LcdWriteBit(0);
		bb <<= 1;
	}
		
	LcdClk = 1;
	LcdCs = 1;
}
/************************************************************
*Function:显示一个数
*parameter:aa为地址，dd为数值
*Return:
*Modify:2005-4-15 11:50
*************************************************************/
void LcdDis(uchar aa,uchar dd)
{
	aa *= 2;
	LcdWriteData(aa,num[dd]);	
}
/************************************************************
*Function:显示温度
*parameter:
*Return:
*Modify:2005-4-16 8:52
*************************************************************/
void DisTemp()
{
	uchar aa;
	uint Temp = 0;
	
	for(aa=0;aa<10;aa++)
	{
		Temperature = 0;
		TemperatuerResult();
		Temp += Temperature;
		delay(1000);
	}
	
	Temp = Temp / 10;
	aa = (uchar)Temp;

	LcdDis(1,(aa/10));
	LcdDis(2,(aa%10));
}