在使用RT-Thread系统时，出现错误号：-2,是什么原因

发布于 2010-08-19 10:22:47 浏览：3684 订阅该版

硬件平台：LM3S9B92
嵌入式系统：RT-Thread
当我在初始化时，把LM3S9b92的以240K为起址地址当做用户数据区使用（即可擦可写），结果出现以下错误：

```  | /
- RT - Thread Operating System
 / |  0.3.0 build Aug 19 2010
 2006 - 2009 Copyright by rt-thread team
竷finsh>>lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN
TCP/IP initialized!

TCPServer  Waiting  for  client  on  port  80...
LED show task runing...

| /
- RT - Thread Operating System
 / |  0.3.0 build Aug 19 2010
 2006 - 2009 Copyright by rt-thread team
Hello, world

finsh>>lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN
TCP/IP initialized!
psr: 0x61000000
 pc: 0x000011ce
 lr: 0x000011cd
r12: 0x00014dbe
r03: 0x200005d8
r02: 0x200040bc
r01: 0xffffffff
r00: 0x00000000
hard fault on thread: http
 thread  pri  status      sp     stack size max used   left tick  error
-------- ---- ------- ---------- ---------- ---------- ---------- ---
ledshow  0x1e ready   0x00000040 0x00000400 0x00000040 0x00000014 000
http     0x16 ready   0x00000128 0x00000400 0x0000016c 0x00000014 -02
tcpip    0x16 ready   0x000000c8 0x00000400 0x000000c8 0x00000014 000
tidle    0x1f ready   0x00000040 0x00000100 0x00000040 0x00000020 000
tshell   0x14 suspend 0x00000230 0x00000800 0x00000230 0x00000064 000
init     0x15 init    0x00000068 0x00000400 0x00000104 0x00000013 000
etx      0xc7 0x00000a05 0x00000e41 0x00000e41 0x00000001 100
erx      0x17 ready   0x00000040 0x00000200 0x00000040 0x00000010 000```
如果不把240K当做用户数据区，就可以正常运行，我想问这是什么原因呢