void isr(void) __interrupt(0)
{
if(INTFbits.T1IF) // 定時器0中斷 132 = 1MS
{
if(RFDecodeOK == 0)
{
if(!RX_DATA)
{
IR_Time_L++;
IR_Time_H=0;
if(JumpFlag && IR_Time_L > 4)
{
JumpFlag=0;
}
}
else
{
IR_Time_H++;
if(!JumpFlag && IR_Time_H > 4)
{
JumpFlag=1;
soft_decode();
IR_Time_L=0;
IR_Time_H=0;
}
}
}
INTF= (unsigned char)~(C_INT_TMR1); // 清除T0IF標志位
}
}
/******************************定時器配置*************************************************/
void Timer1_INIT(void)
{
TMRH = 0;
TMR1 = 48; //50us
T1CR1 = 0x03;
T1CR2 = C_TMR1_ClkSrc_Inst | C_PS1_Div4;
INTE = 0x08;
}
/******************************中斷*************************************************/
#define K1_NUM1 0x5A //短按
#define K1_NUM2 0xA5 //長按
#define K2_NUM1 0X55 //短按
#define K2_NUM2 0XAA //長按
void soft_decode() //解碼
{
static unsigned char RxBitCnt = 0; //接收數(shù)據(jù)位
static unsigned long RxData = 0; //數(shù)據(jù)緩沖
if(IR_State==0)
{
if((IR_Time_L >= 19) && (IR_Time < 25))
{
IR_State=1;
RxData=0;
RxBitCnt=0;
}
else
{
IR_State=0;
}
}
else if(IR_State==1 && RxBitCnt < 32)
{
if((IR_Time_L > 6) && (IR_Time_L < 9)) //50us*6=300
{
RxData = RxData<<1;
RxBitCnt++;
}
else if((IR_Time_L > 11) && (IR_Time_L < 14))
{
RxData = RxData<<1;
RxData |=1;
RxBitCnt++;
}
else
{
RxBitCnt=0;
IR_State=0;
}
if(IR_cnt>=32)
{
RxBitCnt=0;
IR_State=0;
RxUserCode = RxData >> 24;
if(RxUserCode == K1_NUM1)
{
RFDecodeOK = 1;
RX_flag = 1;
}
else if(RxUserCode == K1_NUM2)
{
RFDecodeOK = 1;
RX_flag = 2;
}
else if(RxUserCode == K2_NUM1)
{
RFDecodeOK = 1;
RX_flag = 3;
}
else if(RxUserCode == K2_NUM2)
{
RFDecodeOK = 1;
RX_flag = 4;
}
}
}
}
void soft_decodetask(void)
{
static unsigned int RxTimerCnt = 0;
if(RFDecodeOK)
{
RFDecodeOK = 0;
if(RX_flag==1){LED123=0;}
if(RX_flag==2){LED123=1;}
if(RX_flag==3){LED123=0;}
if(RX_flag==4){LED123=1;}
}
if(RFDecodeOK)
{
RxTimerCnt++;
if(RxTimerCnt >= 2000)
{
RxTimerCnt=0;
RFDecodeOK=0;
}
}
} |
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
