Embedded Ethernet Essential Training with CubeMX

HTTPd webserver keep alive

  • Ethernet
  • LWIP
  • HTTPd
  • Webserver
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Henry Okoro
  • Post By Henry Okoro
  • 1 year ago

I am using the STM32F767ZI microcontroller and was able to implement a webserver with an HTML/CSS/Javascript formatted webpage that can perform GCI commands and use SSI as well. The issue is that the webpage doesn't stay alive after roughly 30 seconds and after issuing a few CGI commands, the webpage fails to load and the server ultimately stops responding. I tried enabling the LWIP_HTTPD_SUPPORT_11_KEEPALIVE macro in my lwipopts.h file, but no behavioral change. I also tried to up the MEM_ALIGNMENT, MEM_SIZE and PBUF_POOL_SIZE, but still seeing the webpage lose connection over wireshark (see attached). What options do I have and what can l look into to solve the issue? Thanks!

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1 comments

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TeachingAssistant
11 months ago

Hi,
in debug session, see if the system is crashing or not.
If yes, try to increase the stack and heap in the linker script file.