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| From: | 凯成自动化 |
| Subject: | [lwip-users] Lwip + ucosII porting problem, help me! |
| Date: | Mon, 26 Jun 2006 14:31:26 +0800 |
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hi,
I ported lwip + ucosII to STR710FZ2(ARM7TDMI)，ucosII
works fine, but Lwip has a problem I can not figure out.
When packets received, The NIC interrupt call
tcpip_input() to creat a message. then tcpip_input() need to call
memp_malloc() to create a new message, memp_malloc() need to call OSSemPend() to
wait for a semaphore.
The problem is OSSemPend() can not be called in a
interrupt. Is there anyone has the same question? How can I get through
it?
Thanks!
Simon.
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