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標題: 【原創(chuàng)】部分開源NEC紅外遙控解碼程序（適合多款單片機） [打印本頁]

作者: psuxaog 時間: 2018-10-5 23:44
標題: 【原創(chuàng)】部分開源NEC紅外遙控解碼程序（適合多款單片機）
本帖最后由 psuxaog 于 2018-10-5 23:47 編輯

本次開源代碼為大批量量產(chǎn)項目中的代碼（標準模塊），已經(jīng)在多款國內(nèi)外產(chǎn)品中使用。移植方便，僅需要處理IO口和提供100微秒中斷，10毫秒節(jié)拍主循環(huán)即可，按鍵讀取等操作直接對接結(jié)構(gòu)體即可，具體請分析源程序。大家可以參考編程思想和代碼風格，歡迎批評指正

//remote.c
#include "remote.h"
#define ID_IR_USER                   0x06F9
#define REMOTE_KEY_SPEED             0xF0
#define REMOTE_KEY_SETINC             0xF1
#define REMOTE_KEY_MODE             0xF2
#define REMOTE_KEY_SETDEC             0xF3
#define REMOTE_KEY_SET                0xF4
#define REMOTE_KEY_POWER             0xF5
#define REMOTE_KEY_LIGHT             0xF6
#define REMOTE_KEY_WIFI             0xF7
#define REMOTE_KEY_NOPRESS          0
static u8 gCntIrBit = 0;
static bit gFlagIrNow = 0;
static bit gFlagIrPrev = 0;
static u8 gCntFilter = 0;
static u8 gCntIrTime = 0;
static u8 idata gBufIrCode[4] = { 0, 0, 0, 0 };
static u8 idata gBufIrCodeOut[4] = { 0, 0, 0, 0 };
static bit gFlagStart = 0;
static bit gFlagIrHold = 0;
static bit gFlagRecvOk = 0;
REMOTE_StructDef xdata REMOTE_Struct;
bit REMOTE_Action = 0;
void REMOTE_Init(void)
{
u8 *p, i;
p = (u8 *) &REMOTE_Struct;
for (i = 0; i < sizeof(REMOTE_Struct); i++)
{
  p = 0;
}
}
void REMOTE_IsrServer(void)
{
u8 tmp = 0;
if (PIN_IR_REC)                //檢測IO口電平變化
{
  if (gCntFilter < 2)             //濾波
  {
gCntFilter++;
  }
  else
  {
gFlagIrNow = 1;             //高電平
  }
}
else
{
  if (gCntFilter)                    //濾波
  {
gCntFilter--;
  }
  else
  {
gFlagIrNow = 0;             //低電平
  }
}
if (gFlagIrPrev && (!gFlagIrNow))
{
  if ((gCntIrTime > 125) && gCntIrTime < (145))
  {
gCntIrBit = 0;
gFlagStart = 1;
  }
  else if (!gFlagStart)
  {
if ((gCntIrTime > 105) && (gCntIrTime < 125))
{
gFlagIrHold = 1;
}
  }
  else
  {
if ((gCntIrTime < 5) || (gCntIrTime > 30))
{
gFlagStart = 0;
}
else
{
tmp = gCntIrBit >> 3;
gBufIrCode[tmp] >>= 1;
if (gCntIrTime > (1680 / 100))
{
   gBufIrCode[tmp] |= 0x80;
}
else
{
   gBufIrCode[tmp] &= ~0x80;
}
gCntIrBit++;
if (gCntIrBit >= 32)
{
   if (!gFlagRecvOk)
   {
   gFlagRecvOk = 1;
   gBufIrCodeOut[0] = gBufIrCode[0];
   gBufIrCodeOut[1] = gBufIrCode[1];
   gBufIrCodeOut[2] = gBufIrCode[2];
   gBufIrCodeOut[3] = gBufIrCode[3];
   }
   gFlagStart = 0;
}
}
  }
  gCntIrTime = 0;
}
else
{
  if (gCntIrTime < 255)
  {
gCntIrTime++;
  }
}
gFlagIrPrev = gFlagIrNow;
}
void REMOTE_Server(void)
{
static u16 idata dlyLong = 0;
static u16 idata dlyLongLim = 0;
static u16 idata dlyReleased = 0;
static u8 keyReleased = 0;
static u8 keyOut = 0;
static u8 keyLong = 0;
bit flagLong3s = 0;
bit flagLong5s = 0;
bit flagReleased = 0;
bit flagAction = 0;
if (gFlagRecvOk)
{
  if ((gBufIrCodeOut[2] == ~gBufIrCodeOut[3])
   && (gBufIrCodeOut[0] == (ID_IR_USER / 256))
   && (gBufIrCodeOut[1] == (ID_IR_USER % 256)))
  {
keyOut = gBufIrCodeOut[2];
keyLong = keyOut;
keyReleased = keyOut;
dlyLong = 0;
dlyLongLim = 0;
dlyReleased = 0;
flagAction = 1;
  }
  gFlagRecvOk = 0;
}
if (dlyLongLim < 65530)
{
  dlyLongLim++;
}
if (dlyLongLim == 300)
{
  if (dlyLong > 20)
  {
flagLong3s = 1;
dlyLong = 0;
keyOut = keyLong;
// keyLong = REMOTE_KEY_NOPRESS;
keyReleased = 0;
  }
}
if (dlyLongLim == 500)
{
  dlyLongLim = 0;
  if (dlyLong > 10)
  {
flagLong5s = 1;
dlyLong = 0;
keyOut = keyLong;
keyLong = REMOTE_KEY_NOPRESS;
keyReleased = 0;
  }
}
if (keyReleased)
{
  dlyReleased++;
  if (dlyReleased > 15)
  {
dlyReleased = 0;
keyOut = keyReleased;
flagReleased = 1;
keyReleased = 0;
  }
}
if (gFlagIrHold)
{
  gFlagIrHold = 0;
  if (dlyLong < 65530)
  {
dlyLong++;
  }
  dlyReleased = 0;
}
if (REMOTE_Struct.HasAction)
{
  if (flagAction)
  {
flagAction = 0;
REMOTE_Struct.Activated = 1;
  }
  if (flagLong3s || flagReleased)
  {
REMOTE_Struct.HasAction = 0;
  }
  keyOut = REMOTE_KEY_NOPRESS;
  return;
}
flagAction = 0;
if (keyOut != REMOTE_KEY_NOPRESS)
{
  switch (keyOut)
{
  case REMOTE_KEY_MODE:
if (flagLong3s)
{
REMOTE_Struct.Value = REMOTE_KeyDispTemp;
}
else if (flagReleased)
{
REMOTE_Struct.Value = REMOTE_KeyMode;
}
break;
  case REMOTE_KEY_SPEED:
if ((!flagReleased) && (!flagLong3s) && (!flagLong5s))
{
REMOTE_Struct.Value = REMOTE_KeySpeed;
}
break;
  case REMOTE_KEY_LIGHT:
if (flagLong5s)
{
REMOTE_Struct.Value = REMOTE_KeyLock;
}
else if (flagReleased)
{
REMOTE_Struct.Value = REMOTE_KeyLight;
}
break;
  case REMOTE_KEY_POWER:
if ((!flagReleased) && (!flagLong3s) && (!flagLong5s))
{
REMOTE_Struct.Value = REMOTE_KeyPower;
}
if (flagLong3s)
{
REMOTE_Struct.Value = REMOTE_KeyPowerLong;
}
break;
  case REMOTE_KEY_SETINC:
if ((!flagReleased) && (!flagLong3s) && (!flagLong5s))
{
REMOTE_Struct.Value = REMOTE_KeySetInc;
}
break;
  case REMOTE_KEY_SETDEC:
if ((!flagReleased) && (!flagLong3s) && (!flagLong5s))
{
REMOTE_Struct.Value = REMOTE_KeySetDec;
}
break;
  case REMOTE_KEY_WIFI:
if (flagLong5s)
{
REMOTE_Struct.Value = REMOTE_KeyWifi;
}
break;
  case REMOTE_KEY_SET:
if (flagLong5s)
{
REMOTE_Struct.Value = REMOTE_KeySet;
}
else if (flagReleased)
{
REMOTE_Struct.Value = REMOTE_KeySetOK;
}
break;
}
}
keyOut = REMOTE_KEY_NOPRESS;
flagLong3s = 0;
flagLong5s = 0;
flagReleased = 0;
}
//remote.h
#ifndef __REMOTE_H__
#define __REMOTE_H__
#include "global.h"
typedef enum
{
REMOTE_KeyNoPress = 0,
REMOTE_KeyPower = 1,
REMOTE_KeySetInc = 2,
REMOTE_KeySetDec = 3,
REMOTE_KeyLight = 4,
REMOTE_KeyMode = 5,
REMOTE_KeySpeed = 6,
REMOTE_KeyWifi = 7,
REMOTE_KeyLock = 8,
REMOTE_KeyDispTemp = 9,
REMOTE_KeySet = 10,
REMOTE_KeySetOK = 11,
REMOTE_KeyPowerLong = 12,
} REMOTE_KeyEnumDef;
typedef struct
{
REMOTE_KeyEnumDef Value;             //按鍵鍵值
u8 HasAction :1;
u8 Activated :1;
} REMOTE_StructDef;
extern REMOTE_StructDef xdata REMOTE_Struct;          //程序接口
extern void REMOTE_Init(void);                                     //初始化
extern void REMOTE_IsrServer(void);                            //定時器中斷中調(diào)用的程序100微秒調(diào)用一次
extern void REMOTE_Server(void);                               //主循環(huán)，10毫秒調(diào)用一次
#endif

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