LAUNCHXL-CC1310: EasyLink_enableRxAddrFilter for multiple devices

I am afraid that I do not fully understand how you want to use the address filtering, so I will just share some simple examples:

I used the default rfEasyLinkTx and rfEasyLinkRx as a starting point, but simplified the application like this:

TX:

static void rfEasyLinkTxFnx(UArg arg0, UArg arg1)
{
    // Initialize the EasyLink parameters to their default values
    EasyLink_Params easyLink_params;
    EasyLink_Params_init(&easyLink_params);

    if(EasyLink_init(&easyLink_params) != EasyLink_Status_Success)
    {
        System_abort("EasyLink_init failed");
    }

    while(1)
    {
        EasyLink_TxPacket txPacket =  { {0}, 0, 0, {0} };

        uint8_t i;
        for (i = 0; i < RFEASYLINKTXPAYLOAD_LENGTH; i++)
        {
          txPacket.payload[i] = i + 1;
        }

        txPacket.len = RFEASYLINKTXPAYLOAD_LENGTH;
        txPacket.absTime = 0;
        txPacket.dstAddr[0] = 0xAA;

        EasyLink_Status result = EasyLink_transmit(&txPacket);

        if (result == EasyLink_Status_Success)
        {
            PIN_setOutputValue(pinHandle, Board_PIN_LED1,!PIN_getOutputValue(Board_PIN_LED1));
        }
        else
        {
            PIN_setOutputValue(pinHandle, Board_PIN_LED2,!PIN_getOutputValue(Board_PIN_LED2));
        }
        sleep(1);
    }
}

RX:

static void rfEasyLinkRxFnx(UArg arg0, UArg arg1)
{
    EasyLink_RxPacket rxPacket = {0};


    // Initialize the EasyLink parameters to their default values
    EasyLink_Params easyLink_params;
    EasyLink_Params_init(&easyLink_params);

    /*
     * Initialize EasyLink with the settings found in easylink_config.h
     * Modify EASYLINK_PARAM_CONFIG in easylink_config.h to change the default
     * PHY
     */
    if(EasyLink_init(&easyLink_params) != EasyLink_Status_Success)
    {
        System_abort("EasyLink_init failed");
    }

    while(1)
    {
        rxPacket.absTime = 0;
        EasyLink_Status result = EasyLink_receive(&rxPacket);

        if (result == EasyLink_Status_Success)
        {
            /* Toggle LED2 to indicate RX */
            PIN_setOutputValue(pinHandle, Board_PIN_LED2,!PIN_getOutputValue(Board_PIN_LED2));
        }
        else
        {
            /* Toggle LED1 and LED2 to indicate error */
            PIN_setOutputValue(pinHandle, Board_PIN_LED1,!PIN_getOutputValue(Board_PIN_LED1));
        }
    }
}

By default, both devices have 1 byte address 0xAA that it is filtering on (only packets with address 0xAA is accepted).

In rfEasyLinkTxFnx, the address is written to the packet like this:

txPacket.dstAddr[0] = 0xAA;

This packet will be received by the receiver, and you will see that dstAddr in rxPacket is set to 0xAA when a packet is received.

If you write something else on the transmitter side, like:

txPacket.dstAddr[0] = 0xCC;

This packet will not be received.

If you want the receiver to receive packets with this address as well, you can add the following to the rfEasyLinkRxFnx

uint8_t addressTable[] = {0xAA, 0xCC};
EasyLink_enableRxAddrFilter(addressTable, 1, 2);

Now the receiver will receive both packets sent with address 0xAA and address 0xCC.

Which address was received can be seen in dstAddr in rxPacket

Assume you want to use a 4 byte long address instead, and want the receiver to receive packets with the following addresses.

0xAABBCCDD and 0x11223344

the following needs to be added added in the RX code:

EasyLink_setCtrl(EasyLink_Ctrl_AddSize, 4); // Addresses are 4 bytes long

uint32_t addressTable[] = {0xDDCCBBAA,
                           0x44332211};

EasyLink_enableRxAddrFilter(addressTable, 4, 2); // 2 addresses of 4 bytes each

On the TX side, you will do the following:

EasyLink_setCtrl(EasyLink_Ctrl_AddSize, 4);

txPacket.dstAddr[0] = 0xAA;
txPacket.dstAddr[1] = 0xBB;
txPacket.dstAddr[2] = 0xCC;
txPacket.dstAddr[3] = 0xDD;

Please note how the bytes are swapped in the address table (in RX) compared to the order they are written in the txPacket.

BR

Siri