Reflex frame jamming, got some troubles.

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

diff --git a/shellcode/chipcon/cc1110/reflex.c b/shellcode/chipcon/cc1110/reflex.c
index ced2f90..4656bd7 100644 (file)
--- a/shellcode/chipcon/cc1110/reflex.c
+++ b/shellcode/chipcon/cc1110/reflex.c
@@ -3,56 +3,143 @@
 
 char __xdata at 0xfe00 packet[256] ;
 
+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;
+
+
+  /* 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.
+   */
+  FSCTRL1   = 0x0A;   // Frequency synthesizer control.
+  FSCTRL0   = 0x00;   // Frequency synthesizer control.
+  
+  
+    
+  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.
+   */
+  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);  
+  
+  
+}
+
+
 void sleepMillis(int ms) {
-       int j;
-       while (--ms > 0) { 
-               for (j=0; j<1200;j++); // about 1 millisecond
-       };
+  int j,k;
+  //k=1000;
+  //while(--k>0)
+  while (--ms > 0) { 
+    for (j=0; j<1200;j++); // about 1 millisecond
+  };
 }
 
 //! Reflexively jam on the present channel by responding to a signal with a carrier wave.
 void main(){
   unsigned char threshold=packet[0], i=0, rssi=0;;
-  
-  
   //Disable interrupts.
   RFTXRXIE=0;
-  
-  //idle a bit.
-  //RFST=RFST_SIDLE;
-  //while(MARCSTATE!=MARC_STATE_IDLE);
 
+    
+  carrier();
+  sleepMillis(10);
+  //RFON;
+  
   while(1){
+    
+    
+    //RFOFF;
+    
+
     //Wait for the transmission.
     RFST=RFST_SRX;
     while(MARCSTATE!=MARC_STATE_RX);
     rssi=0;
+    
+    
     //Wait for RSSI to settle.
-    sleepMillis(10);
+    sleepMillis(100);
+    //RFOFF;
+    
+    
     //Delay until the RSSI is above the threshold.
     while(rssi<threshold){
+      sleepMillis(1);
       rssi=RSSI^0x80;
       packet[0]=rssi;
+      HALT;
     }
     
-    //idle a bit.
-    RFST=RFST_SIDLE;
-    while(MARCSTATE!=MARC_STATE_IDLE);
+    RFON;
+    HALT;
+    while(1);
+    
     
+    HALT;
+    //tx carrier for 10 ms
     
-    SYNC1=0xAA;
-    SYNC0=0xAA;
+    RFON;
+    while(1);
+    RFOFF;
+    sleepMillis(1000);
     
-    //Transmit carrier for 10ms
-    RFST=RFST_STX;
-    while(MARCSTATE!=MARC_STATE_TX);
-    sleepMillis(10);
     
+    while(1);
     //Carrier will clear when the loop continue,
     //but we can HALT to give the host a chance to take over.
-    HALT;
+    //HALT;
   }  
-  RFST = RFST_SIDLE; //End transmit.
+  //RFST = RFST_SIDLE; //End transmit.
   
   HALT;
 }