Am 14.12.2018 um 10:59 schrieb Amena El Homsi:
Hi,
Most embedded systems have a power save mode in which memory is shut
down and the state is saved in a non-volatile memory.
Does LwIP have a list of variables that should be saved and restored to
resume proper functionality?
No.
I guess for a network stack, it's not *that* easy to just save some
variables and resume. You need to save state, not variables. And that
requires thinking: what state do you need to preserve; how long have you
been powered down, etc. For example, it doesn't make sense to try and
let TCP connections survive such a RAM power-down.
lwIP should provide all APIs to resume (if not, add them!), but you'll
have to add your own code to use them.
Simon
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