基于51单片机的红外对管计数源程序(LCD1602显示次数) -

#include <REGX52.H>
#include <math.h>
#include <stdio.h>
#include "intrins.h"
#define uchar unsigned char
#define uint unsigned int
#define DataPort P0
sbit SCL=P1^0;
sbit SDA=P1^1;
#define SlaveAddress 0x46
int count = 0;
static int number;
void Delay100ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
_nop_();
i = 5;
j = 52;
k = 195;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void Int0_Init()
{
IT0=0;
EX0=1;
EA=1;
}
sbit LCD_RS=P2^6;
sbit LCD_RW=P2^5;
sbit LCD_E=P2^7;
#define LCD_DataPort P0
/**
* @brief LCD1602????,12MHz?????1ms
* @param ?
* @retval ?
*/
void LCD_Delay() //@12.000MHz 1ms
{
unsigned char i, j;
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
}
/**
* @brief LCD1602???
* @param Command ??????
* @retval ?
*/
void LCD_WriteCommand(unsigned char Command)
{
LCD_RS=0;
LCD_RW=0;
LCD_DataPort=Command;
LCD_E=1;
LCD_Delay();
LCD_E=0;
LCD_Delay();
}
/**
* @brief LCD1602???
* @param Data ??????
* @retval ?
*/
void LCD_WriteData(unsigned char Data)
{
LCD_RS=1;
LCD_RW=0;
LCD_DataPort=Data;
LCD_E=1;
LCD_Delay();
LCD_E=0;
LCD_Delay();
}
/**
* @brief LCD1602?????
* @param ?
* @retval ?
*/
void LCD_Init(void)
{
LCD_WriteCommand(0x38);
LCD_WriteCommand(0x0C);
LCD_WriteCommand(0x06);
LCD_WriteCommand(0x01);
}
/**
* @brief LCD1602??????
* @param Line ???,??:1~2
* @param Column ???,??:1~16
* @retval ?
*/
void LCD_SetCursor(unsigned char Line,unsigned char Column)
{
if(Line==1)
{
LCD_WriteCommand(0x80|(Column-1));
}
else
{
LCD_WriteCommand(0x80|(Column-1)+0x40);
}
}
/**
* @brief ???=X?Y??
*/
int LCD_Pow(int X,int Y)
{
unsigned char i;
int Result=1;
for(i=0;i<Y;i++)
{
Result*=X;
}
return Result;
}
/**
* @brief ?LCD1602????????????
* @param Line ?????,??:1~2
* @param Column ?????,??:1~16
* @param Number ??????,??:0~65535
* @param Length ????????,??:1~5
* @retval ?
*/
void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length)
{
unsigned char i;
LCD_SetCursor(Line,Column);
for(i=Length;i>0;i--)
{
LCD_WriteData('0'+Number/LCD_Pow(10,i-1)%10);
}
}
void main()
{
Int0_Init();
LCD_Init();
while(1)
{
LCD_ShowNum(2,1,count,3);
number = 1;
}
}
void Int0() interrupt 0
{
if(number == 1)
{
count++;
number = 0;
Delay100ms(); //@11.0592MHz
}
}

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