I tried to create a new socket using FreeRTOSsocket(FREERTOSAFINET, FREERTOSSOCKDGRAM, FREERTOSIPPROTO_UDP ); but it is entering the vAssertCalled() function and continuously looping over there. When i tried to debug it is being called from the function FreeRTOSSocket() { … … configASSERT( listLISTIS_INITIALISED( &xBoundSocketsList ) ); … } Can anyone help me with this socket creation..?

Have you called FreeRTOSIPInit()? http://www.freertos.org/FreeRTOS-Plus/FreeRTOSPlusTCP/TCPNetworkingTutorialInitialising_TCP.html

Hi, On the page referred to by Richard you will also see this important user-provided function: ~~~~~ void vApplicationIPNetworkEventHook( eIPCallbackEventt eNetworkEvent ) { static BaseTypet xTasksAlreadyCreated = pdFALSE;

/* Both eNetworkUp and eNetworkDown events can be processed here. */
if( eNetworkEvent == eNetworkUp )
{
    /* Create the tasks that use the TCP/IP stack if they have not already
    been created. */
    if( xTasksAlreadyCreated == pdFALSE )
    {
        /*
         * For convenience, tasks that use FreeRTOS+TCP can be created here
         * to ensure they are not created before the network is usable.
         */
        xTasksAlreadyCreated = pdTRUE;
    }
}

} ~~~~~ Only after xTasksAlreadyCreated has become true, you can start create and use sockets. Of course, you can also make this a global variable and call it something like:

BaseType_t xIPNetworkIsReady = pdFALSE;

Regards.