Chipcon packet handling is coming along, but transmissions are still dropped. Maybe...

[goodfet] / shellcode / chipcon / cc1110 / txrxpacket.c

diff --git a/shellcode/chipcon/cc1110/txrxpacket.c b/shellcode/chipcon/cc1110/txrxpacket.c
new file mode 100644 (file)
index 0000000..1fdb0f1
--- /dev/null
+++ b/shellcode/chipcon/cc1110/txrxpacket.c
@@ -0,0 +1,44 @@
+#include <cc1110.h>
+#include "cc1110-ext.h"
+
+char __xdata at 0xfe00 packet[256] ;
+
+//! Transmit a packet out of the radio from 0xFE00.
+void main(){
+  unsigned char len=packet[0], i=0;
+  
+  //idle a bit.
+  RFST=RFST_SIDLE;
+  while(MARCSTATE!=MARC_STATE_IDLE);
+  
+  RFST=RFST_STX;     //Begin transmit.
+  while(i!=len+1){
+    while(!RFTXRXIF); //Wait for byte to be ready.
+    
+    RFTXRXIF=0;      //Clear the flag.
+    RFD=packet[i++]; //Send the next byte.
+  }
+  RFST = RFST_SIDLE; //End transmit.
+  
+  
+  while(MARCSTATE!=MARC_STATE_IDLE);
+  
+  //Begin to receive.
+  RFST=RFST_SRX;
+  while(MARCSTATE!=MARC_STATE_RX);
+  i=0;len=16;
+  while(i<len+1){
+    while(!RFTXRXIF); //Wait for byte to be ready.
+    RFTXRXIF=0;      //Clear the flag.
+    
+    if (MARCSTATE == MARC_STATE_RX) {
+      packet[i]=RFD; //Grab the next byte.
+      i++;
+      len=packet[0];   //First byte of the packet is the length.
+    }else
+      HALT;
+
+  }
+  RFST = RFST_SIDLE; //End receive.
+  HALT;
+}