此為B站up：江科大自動協(xié)課程的12-2程序，學(xué)習(xí)用
跟著老師敲出來
主函數(shù)
main.c
#include <REGX52.H>
#include "Delay.h"
#include "LCD1602.h"
#include "IR.h"
unsigned char Num;
unsigned char Address;
unsigned char Command;
void main()
{
LCD_Init();
LCD_ShowString(1,1,"ADDR CMD NUM");
LCD_ShowString(2,1,"00 00 000");
IR_Init();
while(1)
{
if(IR_GetDataFlag() || IR_GetRepeatFlag()) //如果收到數(shù)據(jù)幀或者收到連發(fā)幀
{
Address=IR_GetAddress();
Command=IR_GetCommand();
LCD_ShowHexNum(2,1,Address,2);
LCD_ShowHexNum(2,7,Command,2);
if(Command==IR_VOL_MINUS) //如果遙控器VOL-按鍵按下
{
Num--;
}
if(Command==IR_VOL_ADD) //如果遙控器VOL+按鍵按下
{
Num++;
}
LCD_ShowNum(2,12,Num,3);
}
}
}
演示模塊
Delay.h
#ifndef __DELAY_H__
#define __DELAY_H__
void Delay(unsigned int xms);
#endif
Delay.c
void Delay(unsigned int xms)
{
unsigned char i, j;
while(xms--)
{
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
}
}
中斷模塊
Int0.h
#ifndef __INT0_H__
#define __INT0_H__
void Int0_Init(void);
#endif
Int0.c
#include <REGX52.H>
void Int0_Init(void)
{
IT0=1;
IE0=0;
EX0=1;
EA=1;
PX0=1;
}
顯示模塊
LCD1602.h
#ifndef __LCD1602_H__
#define __LCD1602_H__
//用戶調(diào)用函數(shù)：
void LCD_Init();
void LCD_ShowChar(unsigned char Line,unsigned char Column,char Char);
void LCD_ShowString(unsigned char Line,unsigned char Column,char *String);
void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length);
void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length);
void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length);
void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length);
#endif
LCD1602.c
#include <REGX52.H>
//引腳配置：
sbit LCD_RS=P2^6;
sbit LCD_RW=P2^5;
sbit LCD_EN=P2^7;
#define LCD_DataPort P0
//函數(shù)定義：
/**
* @brief LCD1602延時函數(shù)，12MHz調(diào)用可延時1ms
* @param 無
* @retval 無
*/
void LCD_Delay()
{
unsigned char i, j;
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
}
/**
* @brief LCD1602寫命令
* @param Command 要寫入的命令
* @retval 無
*/
void LCD_WriteCommand(unsigned char Command)
{
LCD_RS=0;
LCD_RW=0;
LCD_DataPort=Command;
LCD_EN=1;
LCD_Delay();
LCD_EN=0;
LCD_Delay();
}
/**
* @brief LCD1602寫數(shù)據(jù)
* @param Data 要寫入的數(shù)據(jù)
* @retval 無
*/
void LCD_WriteData(unsigned char Data)
{
LCD_RS=1;
LCD_RW=0;
LCD_DataPort=Data;
LCD_EN=1;
LCD_Delay();
LCD_EN=0;
LCD_Delay();
}
/**
* @brief LCD1602設(shè)置光標(biāo)位置
* @param Line 行位置，范圍：1~2
* @param Column 列位置，范圍：1~16
* @retval 無
*/
void LCD_SetCursor(unsigned char Line,unsigned char Column)
{
if(Line==1)
{
LCD_WriteCommand(0x80|(Column-1));
}
else if(Line==2)
{
LCD_WriteCommand(0x80|(Column-1+0x40));
}
}
/**
* @brief LCD1602初始化函數(shù)
* @param 無
* @retval 無
*/
void LCD_Init()
{
LCD_WriteCommand(0x38);//八位數(shù)據(jù)接口，兩行顯示，5*7點(diǎn)陣
LCD_WriteCommand(0x0c);//顯示開，光標(biāo)關(guān)，閃爍關(guān)
LCD_WriteCommand(0x06);//數(shù)據(jù)讀寫操作后，光標(biāo)自動加一，畫面不動
LCD_WriteCommand(0x01);//光標(biāo)復(fù)位，清屏
}
/**
* @brief 在LCD1602指定位置上顯示一個字符
* @param Line 行位置，范圍：1~2
* @param Column 列位置，范圍：1~16
* @param Char 要顯示的字符
* @retval 無
*/
void LCD_ShowChar(unsigned char Line,unsigned char Column,char Char)
{
LCD_SetCursor(Line,Column);
LCD_WriteData(Char);
}
/**
* @brief 在LCD1602指定位置開始顯示所給字符串
* @param Line 起始行位置，范圍：1~2
* @param Column 起始列位置，范圍：1~16
* @param String 要顯示的字符串
* @retval 無
*/
void LCD_ShowString(unsigned char Line,unsigned char Column,char *String)
{
unsigned char i;
LCD_SetCursor(Line,Column);
for(i=0;String[i]!='\0';i++)
{
LCD_WriteData(String[i]);
}
}
/**
* @brief 返回值=X的Y次方
*/
int LCD_Pow(int X,int Y)
{
unsigned char i;
int Result=1;
for(i=0;i<Y;i++)
{
Result*=X;
}
return Result;
}
/**
* @brief 在LCD1602指定位置開始顯示所給數(shù)字
* @param Line 起始行位置，范圍：1~2
* @param Column 起始列位置，范圍：1~16
* @param Number 要顯示的數(shù)字，范圍：0~65535
* @param Length 要顯示數(shù)字的長度，范圍：1~5
* @retval 無
*/
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(Number/LCD_Pow(10,i-1)%10+'0');
}
}
/**
* @brief 在LCD1602指定位置開始以有符號十進(jìn)制顯示所給數(shù)字
* @param Line 起始行位置，范圍：1~2
* @param Column 起始列位置，范圍：1~16
* @param Number 要顯示的數(shù)字，范圍：-32768~32767
* @param Length 要顯示數(shù)字的長度，范圍：1~5
* @retval 無
*/
void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length)
{
unsigned char i;
unsigned int Number1;
LCD_SetCursor(Line,Column);
if(Number>=0)
{
LCD_WriteData('+');
Number1=Number;
}
else
{
LCD_WriteData('-');
Number1=-Number;
}
for(i=Length;i>0;i--)
{
LCD_WriteData(Number1/LCD_Pow(10,i-1)%10+'0');
}
}
/**
* @brief 在LCD1602指定位置開始以十六進(jìn)制顯示所給數(shù)字
* @param Line 起始行位置，范圍：1~2
* @param Column 起始列位置，范圍：1~16
* @param Number 要顯示的數(shù)字，范圍：0~0xFFFF
* @param Length 要顯示數(shù)字的長度，范圍：1~4
* @retval 無
*/
void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length)
{
unsigned char i,SingleNumber;
LCD_SetCursor(Line,Column);
for(i=Length;i>0;i--)
{
SingleNumber=Number/LCD_Pow(16,i-1)%16;
if(SingleNumber<10)
{
LCD_WriteData(SingleNumber+'0');
}
else
{
LCD_WriteData(SingleNumber-10+'A');
}
}
}
/**
* @brief 在LCD1602指定位置開始以二進(jìn)制顯示所給數(shù)字
* @param Line 起始行位置，范圍：1~2
* @param Column 起始列位置，范圍：1~16
* @param Number 要顯示的數(shù)字，范圍：0~1111 1111 1111 1111
* @param Length 要顯示數(shù)字的長度，范圍：1~16
* @retval 無
*/
void LCD_ShowBinNum(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(Number/LCD_Pow(2,i-1)%2+'0');
}
}
定時器模塊
Timer0.h
#ifndef __TIMER0_H__
#define __TIMER0_H__
void Timer0_Init(void);
void Timer0_SetCounter(unsigned int Value);
unsigned int Timer0_GetCounter(void);
void Timer0_Run(unsigned char Flag);
#endif
Timer0.c
#include <REGX52.H>
/**
* @brief 定時器0初始化
* @param 無
* @retval 無
*/
void Timer0_Init(void)
{
TMOD &= 0xF0; //設(shè)置定時器模式
TMOD |= 0x01; //設(shè)置定時器模式
TL0 = 0; //設(shè)置定時初值
TH0 = 0; //設(shè)置定時初值
TF0 = 0; //清除TF0標(biāo)志
TR0 = 0; //定時器0不計(jì)時
}
void Timer0_SetCounter(unsigned int Value)
{
TH0=Value/256;
TL0=Value%256;
}
unsigned int Timer0_GetCounter(void)
{
return (TH0<<8)|TL0;
}
Run(unsigned char Flag)
{
TR0=Flag;
}
紅外遙控模塊
IR.h
#ifndef __IR_H__
#define __IR_H__
#define IR_VOL_MINUS 0x15
#define IR_VOL_ADD 0x09
void IR_Init(void);
unsigned char IR_GetDataFlag(void);
unsigned char IR_GetRepeatFlag(void);
unsigned char IR_GetAddress(void);
unsigned char IR_GetCommand(void);
#endif
IR.c
#include <REGX52.H>
#include "Timer0.h"
#include "Int0.h"
unsigned int IR_Time;
unsigned char IR_State;
unsigned char IR_Data[4];
unsigned char IR_pData;
unsigned char IR_DataFlag;
unsigned char IR_RepeatFlag;
unsigned char IR_Address;
unsigned char IR_Command;
void IR_Init(void)
{
Timer0_Init();
Int0_Init();
}
unsigned char IR_GetDataFlag(void)
{
if(IR_DataFlag)
{
IR_DataFlag=0;
return 1;
}
return 0;
}
unsigned char IR_GetRepeatFlag(void)
{
if(IR_RepeatFlag)
{
IR_RepeatFlag=0;
return 1;
}
return 0;
}
unsigned char IR_GetAddress(void)
{
return IR_Address;
}
unsigned char IR_GetCommand(void)
{
return IR_Command;
}
//外部中斷0中斷函數(shù)，下降沿觸發(fā)執(zhí)行
void Int0_Routine(void) interrupt 0
{
if(IR_State==0)
Timer0_SetCounter(0);
Timer0_Run(1); //定時器啟動
IR_State=1;
}
else if(IR_State==1)
{
IR_Time=Timer0_GetCounter();
Timer0_SetCounter(0); //定時計(jì)數(shù)器清0
if(IR_Time>12442-500 && IR_Time<12442+500)
{
IR_State=2;
}
else if(IR_Time>10368-500 && IR_Time<10368+500)
{
IR_RepeatFlag=1;
Timer0_Run(0); //定時器停止
IR_State=0;
}
else
{
IR_State=1;
}
}
else if(IR_State==2)
{
IR_Time=Timer0_GetCounter();
Timer0_SetCounter(0); //定時計(jì)數(shù)器清0
//如果計(jì)時為1120us，
if(IR_Time>1032-500 && IR_Time<1032+500)
{
IR_Data[IR_pData/8]&=~(0x01<<(IR_pData%8));
IR_pData++;
}
else if(IR_Time>2074-500 && IR_Time<2074+500)
{
IR_Data[IR_pData/8]|=(0x01<<(IR_pData%8));
IR_pData++;
}
else
{
IR_pData=0;
IR_State=1;
}
if(IR_pData>=32) //如果接收到了32位數(shù)據(jù)
{
IR_pData=0; //數(shù)據(jù)位置指針清0
if((IR_Data[0]==~IR_Data[1]) && (IR_Data[2]==~IR_Data[3]))
{
IR_Address=IR_Data[0]; //轉(zhuǎn)存數(shù)據(jù)
IR_Command=IR_Data[2];
IR_DataFlag=1;
}
Timer0_Run(0);
IR_State=0;
}
}
}
效果
image.png
