TM4C129ENCPDT: Multiple TCP sockets (Telnet Client) Connection

Hi,

  Where did you get the enet_s2e code?

  I'm not an expert in the s2e code especially the FreeRTOS. The FreeRTOS is a open-source OS and we are promoting TI-RTOS instead for our customers. But I find some notes prior to the line you show that talks about how the execution will end up in that line. Below are the notes. Does you enet_s2e project have this note? I'm wondering if you have an older version. As the note said, it is likely you have a stack overflow. If this is the case then increase your stack size during the build of your project. If the questions are related to FreeRTOS configuration, I strongly suggest you post your questions to the freertos.org for best support.  

	else
	{
		/* *** NOTE ***********************************************************
		If you find your application is crashing here then likely causes are
		listed below.  In addition see www.freertos.org/FAQHelp.html for
		more tips, and ensure configASSERT() is defined!
		www.freertos.org/a00110.html

			1) Stack overflow -
			   see www.freertos.org/Stacks-and-stack-overflow-checking.html
			2) Incorrect interrupt priority assignment, especially on Cortex-M
			   parts where numerically high priority values denote low actual
			   interrupt priorities, which can seem counter intuitive.  See
			   www.freertos.org/RTOS-Cortex-M3-M4.html and the definition
			   of configMAX_SYSCALL_INTERRUPT_PRIORITY on
			   www.freertos.org/a00110.html
			3) Calling an API function from within a critical section or when
			   the scheduler is suspended, or calling an API function that does
			   not end in "FromISR" from an interrupt.
			4) Using a queue or semaphore before it has been initialised or
			   before the scheduler has been started (are interrupts firing
			   before vTaskStartScheduler() has been called?).
		**********************************************************************/

		for( pxIterator = ( ListItem_t * ) &( pxList->xListEnd ); pxIterator->pxNext->xItemValue <= xValueOfInsertion; pxIterator = pxIterator->pxNext ) /*lint !e826 !e740 The mini list structure is used as the list end to save RAM.  This is checked and valid. */
		{
			/* There is nothing to do here, just iterating to the wanted
			insertion position. */
		}

Here is the enet_s2e I have. Perhaps it is the same as yours. Please compare with what you have. 

0602.enet_s2e.zip

Thank you Charles.

I  have also read the reasons for crashing and tried by changing the stack size. But nothing worked. Additionally, If I send data to each socket with a interval of about 3 seconds, it is working well. When I try to send data to sockets with interval of 1/5 of a second, then the data is sending about 5 - 10 cycles (i.e.) working for about 10 - 20 seconds and then the code is crashing into the above said loop