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LWIP TCP echo cause hard_fault

Question asked by Dawei You Employee on Oct 10, 2016
Latest reply on Oct 11, 2016 by Dawei You

Hi Guys:

 

here is one question for LWIP, could you help me check.

I test SDK_2.0_TWR-K65F180M\boards\twrk65f180m\demo_apps\lwip\lwip_tcpecho\freertos using echotool with big package, exceed 500+ bytes, the MCU will enter into Hard_fault interrupt, if use <=500Bytes, all package are echoed.

 

I think it should occur memory conflict for TCP buffer, but have no ideas since Freertos have no debug tool to trace this issue.

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