X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=shellcode%2Fchipcon%2Fcc1110%2Freflexframe.c;h=9120ccf71d682babe7898e70e2d26b302fe64242;hp=57aa2ab049599c0bc1a9b53edc6c8a9194f9cbdf;hb=863730a5be779a7ab5a3217f5fab28d12939457a;hpb=81bbb3ce2efc1a032937f2a8da9806011aba6c8e

diff --git a/shellcode/chipcon/cc1110/reflexframe.c b/shellcode/chipcon/cc1110/reflexframe.c
index 57aa2ab..9120ccf 100644
--- a/shellcode/chipcon/cc1110/reflexframe.c
+++ b/shellcode/chipcon/cc1110/reflexframe.c
@@ -2,16 +2,49 @@
 #include "cc1110-ext.h"
 
 char __xdata at 0xfe00 packet[256] ;
+
+char __xdata at 0xfdf0 cfg[5] ;
+char __xdata at 0xfdf8 freq[3] ;
+//! Save MDMCFG*
+void save_settings(){
+  cfg[0]=MDMCFG0;
+  cfg[1]=MDMCFG1;
+  cfg[2]=MDMCFG2;
+  cfg[3]=MDMCFG3;
+  cfg[4]=MDMCFG4;
+  /*
+  freq[0]=FREQ0;
+  freq[1]=FREQ1;
+  freq[2]=FREQ2;
+  */
+}
+//! Restore MDMCFG*
+void restore_settings(){
+  MDMCFG0=cfg[0];
+  MDMCFG1=cfg[1];
+  MDMCFG2=cfg[2];
+  MDMCFG3=cfg[3];
+  MDMCFG4=cfg[4];
+  /*
+  FREQ0=freq[0];
+  FREQ1=freq[1];
+  FREQ2=freq[2];
+  */
+}
+
 void carrier(){
   // Set the system clock source to HS XOSC and max CPU speed,
   // ref. [clk]=>[clk_xosc.c]
+  /*
   SLEEP &= ~SLEEP_OSC_PD;
   while( !(SLEEP & SLEEP_XOSC_S) );
   CLKCON = (CLKCON & ~(CLKCON_CLKSPD | CLKCON_OSC)) | CLKSPD_DIV_1;
   while (CLKCON & CLKCON_OSC);
   SLEEP |= SLEEP_OSC_PD;
+  */
 
-
+  //FREQ0=0x5C;
+  
   /* Setup radio with settings from SmartRF® Studio. The default settings are
    * used, except that "unmodulated" is chosen in the "Simple RX tab". This
    * results in an umodulated carrier with a frequency of approx. 2.433 GHz.
@@ -20,40 +53,17 @@ void carrier(){
   //FSCTRL0   = 0x00;   // Frequency synthesizer control.
   
   
+  //Bandwidth, Symbol Rate
+  //MDMCFG4   = 0x86;
+  //Symbol Rate
+  //MDMCFG3   = 0x83;
+  //Sensitivity, shift-keying mode
+  //MDMCFG2   = 0x30;
+  //FEC, Premable, Spacing
+  //MDMCFG1   = 0x22;
+  //Channel Spacing
+  //MDMCFG0   = 0xF8;
   
-  MDMCFG4   = 0x86;   // Modem configuration.
-  MDMCFG3   = 0x83;   // Modem configuration.
-  MDMCFG2   = 0x30;   // Modem configuration.
-  MDMCFG1   = 0x22;   // Modem configuration.
-  MDMCFG0   = 0xF8;   // Modem configuration.
-  
-  /*
-  CHANNR    = 0x00;   // Channel number.
-  DEVIATN   = 0x00;   // Modem deviation setting (when FSK modulation is enabled).
-  FREND1    = 0x56;   // Front end RX configuration.
-  FREND0    = 0x10;   // Front end RX configuration.
-  MCSM0     = 0x14;   // Main Radio Control State Machine configuration.
-  FOCCFG    = 0x16;   // Frequency Offset Compensation Configuration.
-  BSCFG     = 0x6C;   // Bit synchronization Configuration.
-  AGCCTRL2  = 0x03;   // AGC control.
-  AGCCTRL1  = 0x40;   // AGC control.
-  AGCCTRL0  = 0x91;   // AGC control.
-  FSCAL3    = 0xE9;   // Frequency synthesizer calibration.
-  FSCAL2    = 0x2a;   // Frequency synthesizer calibration.
-  FSCAL1    = 0x00;   // Frequency synthesizer calibration.
-  FSCAL0    = 0x1f;   // Frequency synthesizer calibration
-  
-  TEST2     = 0x88;   // Various test settings.
-  TEST1     = 0x31;   // Various test settings.
-  TEST0     = 0x09;   // Various test settings.
-  
-  //FE is too high
-  PA_TABLE0 = 0xFF;   // PA output power setting.
-  PKTCTRL1  = 0x04;   // Packet automation control.
-  PKTCTRL0  = 0x22;   // Packet automation control.
-  ADDR      = 0x00;   // Device address.
-  PKTLEN    = 0xFF;   // Packet length.
-  */
   /* Settings not from SmartRF® Studio. Setting both sync word registers to
    * 0xAA = 0b10101010, i.e., the same as the preamble pattern. Not necessary,
    * but gives control of what the radio attempts to transmit.
@@ -62,27 +72,19 @@ void carrier(){
   //These sync values are better for jamming, but they break reception.
   //SYNC1     = 0xAA;
   //SYNC0     = 0xAA;
-
-  /* Put radio in TX. 
-  RFST      = RFST_STX;
-  while ((MARCSTATE & MARCSTATE_MARC_STATE) != MARC_STATE_TX);
-  */
-
   
 #define RFON RFST = RFST_SIDLE; RFST = RFST_STX; while ((MARCSTATE & MARCSTATE_MARC_STATE) != MARC_STATE_TX);
 #define RFOFF RFST = RFST_SIDLE; //while ((MARCSTATE & MARCSTATE_MARC_STATE) != MARC_STATE_IDLE);
   //RFON;
-  //while(1);  
-  
-  
+  //while(1);
 }
 
 
 void sleepMillis(int ms) {
-	int j;
-	while (--ms > 0) { 
-		for (j=0; j<1200;j++); // about 1 millisecond
-	};
+  int j;
+  while (--ms > 0) { 
+    for (j=0; j<1200;j++); // about 1 millisecond
+  };
 }
 
 
@@ -93,35 +95,41 @@ void main(){
   //Disable interrupts.
   RFTXRXIE=0;
   
+  save_settings();
+  
   //carrier();
   
-  //idle a bit.
-  RFST=RFST_SIDLE;
-  while(MARCSTATE!=MARC_STATE_IDLE);
-
+  
   while(1){
     //idle a bit.
-    RFST=RFST_SFSTXON;
-    while(MARCSTATE!=MARC_STATE_FSTXON);
+    RFST=RFST_SIDLE;
+    while(MARCSTATE!=MARC_STATE_IDLE);
     
+    restore_settings();
+    //idle a bit, unecessary
+    //RFST=RFST_SFSTXON;
+    //while(MARCSTATE!=MARC_STATE_FSTXON);
     
-    sleepMillis(5);
+    //sleepMillis(100);
     rxwait();
     
     //idle w/ oscillator
-    RFST=RFST_SFSTXON;
-    while(MARCSTATE!=MARC_STATE_FSTXON);
-    //HALT;
+    //RFST=RFST_SFSTXON;
+    //while(MARCSTATE!=MARC_STATE_FSTXON);
     
-    //RFOFF;
-    
-    //SYNC1=0xAA;
-    //SYNC0=0xAA;
     
     //Transmit carrier for 10ms
     carrier();
     RFON;
-    HALT;
+    //HALT;
+    //while(1);
+    //sleepMillis(200);
+    //sleepMillis(100);
+    //sleepMillis(50);
+    
+    
+    sleepMillis(10);
+    //HALT;
   }
 }
 
@@ -129,6 +137,9 @@ void main(){
 void rxwait(){
   unsigned char len=16, i=0;
   
+  //Test to always carry.
+  //return;
+  
   do{
     //1-out the buffer.
     for(i=0;i<64;i++)
@@ -146,25 +157,19 @@ void rxwait(){
     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.
+    //return;
+    
+    
+    //Fixed length
+    packet[i++]=PKTLEN;
+    while(i<3){ //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.