CC1350: Simultaneous Receive/Transmit Not Working With CC1350 Using RF Driver

Hi Tim

I used the rfPacketRX example and modified it to transmit a packet every time a packet is received with CRC OK.
I transmit the payload of the received packet.
The code is found below:

static uint8_t rxPacket[MAX_LENGTH + NUM_APPENDED_BYTES - 1]; /* The length byte is stored in a separate variable */
static uint8_t txPacket[MAX_LENGTH];

static void rxTaskFunction(UArg arg0, UArg arg1)
{
    RF_Params rfParams;
    RF_Params_init(&rfParams);

    if( RFQueue_defineQueue(&dataQueue,
                            rxDataEntryBuffer,
                            sizeof(rxDataEntryBuffer),
                            NUM_DATA_ENTRIES,
                            MAX_LENGTH + NUM_APPENDED_BYTES))
    {
        /* Failed to allocate space for all data entries */
        while(1);
    }

    /* Modify CMD_PROP_RX command for application needs */
    RF_cmdPropRx.pQueue = &dataQueue;           /* Set the Data Entity queue for received data */
    RF_cmdPropRx.rxConf.bAutoFlushIgnored = 1;  /* Discard ignored packets from Rx queue */
    RF_cmdPropRx.rxConf.bAutoFlushCrcErr = 1;   /* Discard packets with CRC error from Rx queue */
    RF_cmdPropRx.maxPktLen = MAX_LENGTH;        /* Implement packet length filtering to avoid PROP_ERROR_RXBUF */
    RF_cmdPropRx.pktConf.bRepeatOk = 0;         /* Exit RX if a good packet is received */
    RF_cmdPropRx.pktConf.bRepeatNok = 1;
    
    RF_cmdPropTx.pPkt = txPacket;
    RF_cmdPropTx.startTrigger.triggerType = TRIG_NOW;

    /* Request access to the radio */
    rfHandle = RF_open(&rfObject, &RF_prop, (RF_RadioSetup*)&RF_cmdPropRadioDivSetup, &rfParams);

    /* Set the frequency */
    RF_postCmd(rfHandle, (RF_Op*)&RF_cmdFs, RF_PriorityNormal, NULL, 0);

    while(1)
    {
        rxCmdHndl = RF_postCmd(rfHandle, (RF_Op*)&RF_cmdPropRx, RF_PriorityNormal, NULL, 0);
        RF_pendCmd(rfHandle, rxCmdHndl, RF_EventLastCmdDone);
        
        currentDataEntry = RFQueue_getDataEntry();

        packetLength      = *(uint8_t*)(&currentDataEntry->data);
        packetDataPointer = (uint8_t*)(&currentDataEntry->data + 1);
        memcpy(rxPacket, packetDataPointer, (packetLength + 1));

        RFQueue_nextEntry();
        
        memcpy(txPacket, rxPacket, (packetLength + 1));
         
        RF_cmdPropTx.pktLen = packetLength;
        
        txCmdHndl = RF_postCmd(rfHandle, (RF_Op*)&RF_cmdPropTx, RF_PriorityNormal, NULL, 0);
        RF_pendCmd(rfHandle, txCmdHndl, RF_EventLastCmdDone);
    }
}

Hope this helps

BR

Siri

Hey Siri:

Thanks for your reply.  I duplicated what you have done and was able to get it to work ok.  Only difference I can see with what I am using is a semaphore that supports events and a mailbox that is used in addition with my code.  I will try to isolate the problem and try to determine what is going wrong with my code.  Thanks for providing me an easy example that works and allows me to test to a known working reference.  Will get back with you later on what I find out.

Thanks,
Tim

Hi Tim

God luck with your debugging :-)
If you are not able to get your code up and running you can send us your complete code so that we can take a look at it here. The easiest is if you send us a .c file that we can replace the rfPacketRX.c file with.

BR
Siri