static void runTX(char c1, char c2, char c3, char c4)
{
// Initialize packet buffer of size PKTLEN + 1
uint8 txBuffer[PKTLEN+1] = {0};
P2SEL &= ~0x40; // P2SEL bit 6 (GDO0) set to one as default. Set to zero (I/O)
// connect ISR function to GPIO0, interrupt on falling edge
trxIsrConnect(GPIO_0, FALLING_EDGE, &radioRxTxISR);
// enable interrupt from GPIO_0
trxEnableInt(GPIO_0);
// create a random packet with PKTLEN + 2 byte packet counter + n x random bytes
createPacket(txBuffer, c1, c2, c3, c4);
// write packet to tx fifo
cc11xLSpiWriteTxFifo(txBuffer,sizeof(txBuffer));
// strobe TX to send packet
trxSpiCmdStrobe(CC110L_STX);
// wait for interrupt that packet has been sent.
// (Assumes the GPIO connected to the radioRxTxISR function is set
// to GPIOx_CFG = 0x06)
while(!packetSemaphore);
// clear semaphore flag
packetSemaphore = ISR_IDLE;
halLedToggle(LED1);
__delay_cycles(250000);
halLedToggle(LED1);
}
/******************************************************************************
* @fn perCC115LSendPacket
*
* @brief Sends the contents that pData points to. pData has the
* following structure:
*
* txArray[0] = length byte
* txArray[n] = payload[n]
* | n<[sizeOf(RXFIFO)-2], variable packet length is assumed.
*
* The radio state after completing TX is dependant on the
* MCSM1 register setting. This function enables SYNC interrupt.
* This means that an interrupt will go off when a packet
* has been sent, i.e sync signal transitions from high to low.
* MSP will be in low power mode until packet has been sent given
* that no other interrupts go off.
*
* The One-Way PER test disables the sync pin interrupt when TX
* finishes, while the Two-Way PER test doesn't to enable quick
* reception of Slave ACK.
*
* Note: Assumes chip is ready
*
* input parameters
*
* @param *pData - pointer to data array that starts with length byte
* and followed by payload.
* output parameters
*
* @return void
*/
void perCC115LSendPacket(uint8 *pData)
{
uint8 len = *pData;
/* Will only try to transmit if the whole packet can fit i TXFIFO
* and we're not currently sending a packet.
*/
if(!(len > (PER_MAX_DATA-2)) && (cc115LRadioTxIdle != CC115L_STATE_TX) )
{
cc11xLSpiWriteTxFifo(pData,(len+1));
/* Indicate state to the ISR and issue the TX strobe */
trxEnableInt();
cc115LRadioTxIdle = CC115L_STATE_TX;
trxSpiCmdStrobe(CC115L_STX);
/* Wait until packet is sent before doing anything else */
__low_power_mode_3();
while(cc115LRadioTxIdle == CC115L_STATE_TX);
if(perSettings.linkTopology == LINK_1_WAY)
{
/* Back in Idle*/
trxDisableInt();
}
}
return;
}
/*******************************************************************************
* @fn perCC115LWriteTxFifo
*
* @brief Means for PER test to write the TX FIFO
*
* input parameters
*
* @param *pData - pointer to data array that will be written to TX Fifo
* @param len - number of bytes in that will be written to TX Fifo
*
* output parameters
*
* @return void
*/
void perCC115LWriteTxFifo(uint8 *pData, uint8 len)
{
cc11xLSpiWriteTxFifo(pData,len);
return;
}
