#include <cc1110.h>
#include "cc1110-ext.h"
-char __xdata at 0xfe00 packet[256] ;
+#define MAXLEN 0xFF
+char __xdata at 0xfe00 packet[MAXLEN] ;
//! Receives a packet out of the radio from 0xFE00.
void main(){
unsigned char len=16, i=0;
- //1-out the buffer.
- for(i=0;i<64;i++)
- packet[i]=0xFF;
- i=0;
-
- //Disable interrupts.
- RFTXRXIE=0;
-
- //idle a bit.
- RFST=RFST_SIDLE;
- while(MARCSTATE!=MARC_STATE_IDLE);
-
- //Begin to receive.
- RFST=RFST_SRX;
- while(MARCSTATE!=MARC_STATE_RX);
-
- while(i!=len+1){
- while(!RFTXRXIF); //Wait for byte to be ready.
- RFTXRXIF=0; //Clear the flag.
+ do{
+ //1-out the buffer.
+ for(i=0;i<64;i++)
+ packet[i]=0xFF;
+ i=0;
- if (MARCSTATE == MARC_STATE_RX) {
- packet[i]=RFD; //Grab the next byte.
- //packet[i]=MARCSTATE;
- //if(packet[i]!=0)
- i++;
- //len=packet[0]; //First byte of the packet is the length.
- }else
- HALT;
-
- }
- RFST = RFST_SIDLE; //End transmit.
+ //Disable interrupts.
+ RFTXRXIE=0;
+
+ //idle a bit.
+ RFST=RFST_SIDLE;
+ while(MARCSTATE!=MARC_STATE_IDLE);
+
+ //Begin to receive.
+ RFST=RFST_SRX;
+ while(MARCSTATE!=MARC_STATE_RX);
+
+ if(PKTCTRL0&1){
+ //auto length
+ while(i<len+3){ //len+3 if status is appended.
+ while(!RFTXRXIF); //Wait for byte to be ready.
+ RFTXRXIF=0; //Clear the flag.
+
+ packet[i++]=RFD; //Grab the next byte.
+ len=packet[0]; //First byte of the packet is the length.
+ }
+ }else{
+ //Fixed length
+ packet[i++]=PKTLEN;
+ while(i<PKTLEN){
+ while(!RFTXRXIF); //Wait for byte to be ready.
+ RFTXRXIF=0; //Clear the flag.
+
+ packet[i++]=RFD; //Grab the next byte.
+ }
+ }
+ RFST = RFST_SIDLE; //End receive.
+
+ //This while loop can be used for filtering. Unused for now.
+ }while(0); //packet[0]==(char) 0x0f || packet[1]==(char) 0xFF || packet[9]==(char) 0x03);
+
HALT;
}
+