void Receiver()
{
// Enable GDO interrupt and global interrupts.
CC1101GdoEnable(gPhyInfo.gdo[0]);
__enable_interrupt();
while (true)
{
// Put the radio into an IDLE state.
CC1101Idle(&gPhyInfo);
// Flush the RX FIFO to prepare it for the next RF packet and turn on the
// receiver.
CC1101FlushRxFifo(&gPhyInfo);
CC1101ReceiverOn(&gPhyInfo);
/**
* On every reception, toggle the LED from off to on. This method uses a
* flag to determine when the interrupt has occurred and the End-Of-Packet
* (EOP) has been received.
*/
P1OUT &= ~BIT0;
while (!packetAvailable);
P1OUT |= BIT0;
// Read the data from the RX FIFO.
CC1101ReadRxFifo(&gPhyInfo, rxData, sizeof(rxData)/sizeof(unsigned char));
packetAvailable = false;
}
}
void Transmitter()
{
while (true)
{
unsigned int i;
// Increase the sequence number on every transmission. This is mainly used
// to display differentiation between messages (demo purposes).
txData[2]++;
// Add delay between transmits for visual effect
for (i = 0; i < 60000; i++);
// Put the radio into an IDLE state.
CC1101Idle(&gPhyInfo);
// Flush the TX FIFO and then write new data to it. Transmit.
CC1101FlushTxFifo(&gPhyInfo);
CC1101WriteTxFifo(&gPhyInfo, txData, sizeof(txData)/sizeof(unsigned char));
CC1101Transmit(&gPhyInfo);
// On every transmission, toggle the LED from on to off.
P1OUT |= BIT0;
while (!CC1101GdoEvent(gPhyInfo.gdo[0], P2IN)); // Sync sent
while (CC1101GdoEvent(gPhyInfo.gdo[0], P2IN)); // Transmit complete
P1OUT &= ~BIT0;
}
}
unsigned char A110x2500Radio::receiverOn(uint8_t *dataField,
uint8_t length,
uint16_t timeout)
{
if (!busy())
{
// Bring the radio out of a low power state.
wakeup();
// Set the receive buffer.
Radio._dataStream.length = 0;
Radio._dataStream.address = 0;
Radio._dataStream.dataField = dataField;
// Listen for a data stream.
CC1101Idle(&gPhyInfo.cc1101);
CC1101FlushRxFifo(&gPhyInfo.cc1101);
CC1101ReceiverOn(&gPhyInfo.cc1101);
// Listen for at most the timeout period or until a message is received.
while (timeout-- > 0)
{
delay(1);
if (gDataReceived)
{
gDataReceived = false;
return Radio._dataStream.length;
}
}
}
return 0; // No data stream received
}
void A110x2500Radio::transmit(uint8_t address,
uint8_t *dataField,
uint8_t length)
{
if (!busy())
{
// Bring the radio out of a low power state.
wakeup();
// Set the transmit buffer.
Radio._dataStream.length = 0;
Radio._dataStream.address = 0;
Radio._dataStream.dataField = dataField;
// Build and transmit a data stream.
CC1101Idle(&gPhyInfo.cc1101);
buildDataStream(address, Radio._dataStream.dataField, length);
CC1101Transmit(&gPhyInfo.cc1101);
gDataTransmitting = true;
}
}
