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LWIP: MEMP_SYS_TIMEOUT could not be resolved

JCOrtiz
Associate II

Hi,

I'm trying to compile my project that uses Ethernet interface. I have a PCB with STM32F407VGT6.

When I compile, I get 3 errors that say: MEMP_SYS_TIMEOUT could not be resolved. The error is located at timeouts.c file, in lwip library.

These are:

timeout = (struct sys_timeo *)memp_malloc(MEMP_SYS_TIMEOUT);

memp_free(MEMP_SYS_TIMEOUT, t);

memp_free(MEMP_SYS_TIMEOUT, tmptimeout);

If I comment those lines, the code works.

Why is this happening? What's this variable?

Thanks!

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