Hello,
I’m a really new with LWIP, and I cannot find any relevant answer on my question on forum, may be you can help me.
I’m using LWIP in a project based on a STM32-L777+ FREERTOS.
We are using a websocket to answer to small request send from a PC.
I noticed that the time needed to receive answer on PC side is very long +- 250ms, seems to be linked to TCP_TMR_INTERVAL.
If I reduce TCP_TMR_INTERVAL to 1ms, response time goes down to 5ms (sometimes 20ms) but the processor load increase to 40%, where it’s was 0.46% before.
I use http_write to send the answer (always less than TCP_MSS(536) in general 200bytes), is it the best way to proceed? How can I improve this part without impacting CPU load so much?
Thank-you
André