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Problem with running example described in the AN3966

Question asked by Krzysztof on Feb 5, 2014
Latest reply on Jun 24, 2014 by Krzysztof
I’m trying to run example project described in application note AN3966. According to the release note FreeRTOS project of web server using sockets contains:
     Cortex-M CMSIS V3.01 
     STM32F4xx CMSIS V1.1.0 
     STM32F4xx_StdPeriph_Driver V1.1.0 
     STM32F4x7 Ethernet Driver V1.1.0 
     STM32_EVAL Common drivers V5.0.2 
     STM3240_41_G_EVAL board drivers V1.1.1 
     LwIP TCP/IP V1.4.1 
     FreeRTOS V7.3.0 
     FatFs VR0.09 

Project was compiled and run under IAR development chain without any problems (maybe there were few warnings from LwIP source files). But the problem starts after board is running for couple of minutes. Board stop respond to the ping either http requests.
I have ported this example to ARM GCC compiler and problem is exactly the same. After investigation I found out that all semaphores and queues are returning timeout status. What is more the DMA interrupt is not occurring at all… I check with scope Rx lines from PHY and its seems that valid data are coming to uP’s MAC.

Does anybody have similar issue? Any tips?

Best Regards