Hi,
After all in my GSM init function I was overflowing
a buffer! This resulted to corrupted data afterwards. Very happy the problem is
solved I started to worry! 
Regards,
Nick
From: N.Karakotas
Sent: Wednesday, March 07, 2012 8:13 PM
Subject: Re: [lwip-users] 2 Interfaces , PPP over Serial and
Ethernet
Hi,
I thought it might be that the heap was getting
smaller so I set the heap of FreeRTOS to the upper unused USB space on the
lpc1769. Things run a lot smoother with this setup so I enable again the the PPP
thread. Again I was having problems. I am not sure what could be at
fault.
Could it be that you have two threads (or interrupts, or
timers, or whatever) running and accessing lwIP at the same
time?
I setup lwip in main and then I call a thread to setup
netif etc, and turn on the modem and dial, I then do vTaskDelete to delete the
thread. Afterwards another new
thread runds pppAuth and connect to the net.
I had 2 lwipopt.h files lying around and different
source files (at different
locations)..
I actually have one lwipopt.h
oh well in this project I should check if the project is referencing another
one.
Regards,
Nick
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