Hard Fault in TCP Echo Server (Ethernet)

[Gokul_Sarvanakumar_60]

Hi all , 

Im facing a issue in TCP/IP - Ethernet using LWIP on STM32H723ZGT6 [NUCLEO - H723ZG] , that i gave completed ethernet configuration , ping is good , wrote a tcp_echoserver and modified with my desired outputs , everything was a woking upto a certain level, and i cant RX and Tx and fall into hard fault (Added a Video of the output). I'll add the code file as a zip. 

Kindly help me to resolve ii.

Thank You!!!.....

[Uwe Bonnes]

Hopefully you developped und revison control, e.g. with GIT. Then you can bisect to find the bad commit...

[Andrew Neil]

Debugging Cortex-M Hard Faults

LwIP debug & diagnostic options.

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@Gokul_Sarvanakumar_60 wrote:

everything was a woking upto a certain level, and i cant RX and Tx and fall into hard fault...

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As @Uwe Bonnes said, go back to the last working version; examine carefully what you changed.

Use the above-mentioned LwIP debug & diagnostic options to compare & contrast what happens in the working & non-working cases ...

[Gokul_Sarvanakumar_60 · Accepted solution]

Thank you for all your reply, 

I have resolved it , 2hrs ago forgot to mention in the community, the issue was i have mapped my LWIP Rx pool at 0x30000400 at 16KB (approximately ends at 0x30004400) and set my lwip heap at 0x30004000 so both of them are overlapped , so only i got hardfault , finnally found and resolved it by placing the heap  @ 0x30005000.