* 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.
+ //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);
- */
-
+
+ //These sync values are better for jamming, but they break reception.
+ //SYNC1 = 0xAA;
+ //SYNC0 = 0xAA;
#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);
};
}
-//! Wait for a packet to come, then immediately return.
-void rxwait(){
- int i=0;
-
- //Disable interrupts.
- RFTXRXIE=0;
-
- //idle a bit.
- RFST=RFST_SIDLE;
- while(MARCSTATE!=MARC_STATE_IDLE);
-
- sleepMillis(10);
- //Begin to receive.
- RFST=RFST_SRX;
- while(MARCSTATE!=MARC_STATE_RX);
- //while(MARCSTATE!=MARC_STATE_RX_OVERFLOW);
-
-
-
- //Incoming!
- /*
- //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.
- }
- */
- //sleepMillis(10);
- //RFST = RFST_SIDLE; //End receive.
-}
//! 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;;
- PKTCTRL0=0x02;
//Disable interrupts.
RFTXRXIE=0;
//carrier();
//idle a bit.
- //RFST=RFST_SIDLE;
- //while(MARCSTATE!=MARC_STATE_IDLE);
+ RFST=RFST_SIDLE;
+ while(MARCSTATE!=MARC_STATE_IDLE);
while(1){
+ //idle a bit.
+ RFST=RFST_SFSTXON;
+ while(MARCSTATE!=MARC_STATE_FSTXON);
+
+ sleepMillis(5);
rxwait();
- //idle a bit.
- RFST=RFST_SIDLE;
- while(MARCSTATE!=MARC_STATE_IDLE);
+ //idle w/ oscillator
+ RFST=RFST_SFSTXON;
+ while(MARCSTATE!=MARC_STATE_FSTXON);
+
+ //HALT;
+ //sleepMillis(500);
//HALT;
- RFOFF;
+ //RFOFF;
//SYNC1=0xAA;
//SYNC0=0xAA;
//Transmit carrier for 10ms
- /*
- RFST=RFST_STX;
- while(MARCSTATE!=MARC_STATE_TX);
- sleepMillis(20);
- */
+ carrier();
+ RFON;
- //RFON;
- sleepMillis(200);
+ sleepMillis(2000);
- //Carrier will clear when the loop continue,
- //but we can HALT to give the host a chance to take over.
+ //sleepMillis(500);
HALT;
- }
- RFST = RFST_SIDLE; //End transmit.
+ }
+}
+
+//! Receives a packet out of the radio from 0xFE00.
+void rxwait(){
+ unsigned char len=16, i=0;
- HALT;
+ do{
+ //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);
+
+ 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);
}
+
+
projects / goodfet / blobdiff