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From: | Peter Graf |
Subject: | Re: [lwip-users] sys_timeout |
Date: | Wed, 08 Mar 2006 09:58:01 +0100 |
User-agent: | Mozilla Thunderbird 1.0 (Windows/20041206) |
Hi Curt,
I'm actually not using tcpip_thread() or any of the src/api, but rather the "raw" API (I'm precluded from using netconn since its message passing is based on shared memory). My O/S also does not have semaphores. It has nothing but timer interrupts, network interface interrupts, and bus interrupts. I define NO_SYS.
Just in case it's helpful: Are you sure you really don't have shared memory, in it's most trivial meaning? You seem to have a rudimentary O/S which makes it unlikely that memory protection is active.
The point may be if your O/S supports multiple threads. If it does, you might even implement semaphores yourself, and use the multitasking API of lwIP.
Peter
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