[lwip-users] LWIP 1.4.1 uploading problem

[Vass Szabolcs]

Hi all,

    My name is Szabolcs Vass and I'm new in this forum. I develop a 
microchip based webserver application with STM32F407 controller. My code 
uses Your lwip 1.4.1 stack (raw api) generated from STM32CUBE MX. In the 
recent day I got a bug which I coludn't resolve. So I want to upload a 
large binary file to the server from the computer through browser. (The 
client side application is a flash based application)
    The file size is 264KB and when uploading reachs to 8 KB, it stops 
and the web apllication crashes in the browser. I use POST method to 
upload this MME type file.   Since a couple of days I try to debug my 
code but didn't get where crashes the program.
    I think that this problem come form a size limiting of stack or a 
timeout problem. I tried to modify the pbuf sizes in lwippools.h and 
modified the TCP_TMR_INTERVAL, IP_TMR_INTERVAL, ARP_TMR_INTERVAL but 
nothing helped.
    If I upload files that sizes is smallaer than 8KB working 
correctly. I didn't see any post with same problem and therfore writing 
for You.
    Can You help me?

Kind regards,
Szabolcs Vass