?? rxc.c
字號:
#include "..\gloableh.h"
#include "rxh.h"
RXSTRUCT Rx;
void RfRx(void)
{
Rx.State=0;
Rx.Timer=0;
while(1){
if(Rx.State>3) break;
switch(Rx.State){
case 0:
if(RxBit){
Rx.Timer +=GetTimer();
if(Rx.Timer>5000) Rx.State=5;
break;
}
Rx.State++;
Rx.Timer=0;
Rx.un.ul0=0;
GetTimer();
break;
case 1:
Rx.Timer +=GetTimer();
if(RxBit){
if(Rx.Timer>MINLOWTIME){
Rx.State=2;
Rx.Count=24;
Rx.Timer=0;
GetTimer();
break;
}
Rx.State=0;
break;
}
if(Rx.Timer>MAXLOWTIME) Rx.State=5;
break;
case 2:
Rx.Timer+=GetTimer();
if(RxBit) break;
#if 0
if(Rx.Timer<MINPULSELOWTIME){
Rx.State=5;
break;
}
#endif
if(Rx.Timer>MAXPULSEHIGHTIME){
Rx.State=5;
break;
}
if(Rx.Timer>MINPULSEHIGHTIME){
Rx.un.ul0 |=1;
}
Rx.Timer=0;
Rx.State=3;
Rx.Count--;
if(Rx.Count){
Rx.un.ul0<<=1;
break;
}
Rx.State=4;
break;
case 3:
if(RxBit){
Rx.State=2;
Rx.Timer=0;
GetTimer();
break;
}
Rx.Timer +=GetTimer();
if(Rx.Timer>MAXPULSEHIGHTIME) Rx.State=5;
break;
case 4:
break;
case 5:
break;
}
}
}
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