eclipse + openOCD + openJTAG 调试mini2440 无法进入调试模式

各位,
      我的系统如下:
eclipse + openOCD + openJTAG
在命令行下面,我能用openOCD下载leds程序,并且调试成功了.后来,我就配置eclips来进行图形话调试.
我安装openJTG附带的小光盘的教程配置了系统.
但是eclipse始终 无法进入调试视图.
第一步,启动openOCD成功:
Open On-Chip Debugger (2008-06-19 19:00) svn: 717
URL: http://svn.berlios.de/svnroot/repos/openocd/trunk
Info:    options.c:50 configuration_output_handler(): jtag_speed: 0, 0
Info:    options.c:50 configuration_output_handler(): Open On-Chip Debugger (2008-06-19 19:00) svn: 717
Info:    options.c:50 configuration_output_handler(): fast memory access is enabled
Info:    jtag.c:1389 jtag_examine_chain(): JTAG device found: 0x0032409d (Manufacturer: 0x04e, Part: 0x0324, Version: 0x0)
Warning: arm7_9_common.c:700 arm7_9_poll(): DBGACK set while target was in unknown state. Reset or initialize target.
第二步,启动debug. 信息如下:
target remote localhost:3333
warning: while parsing target memory map (at line 2): Required element <memory> is missing
0x000003c0 in ?? ()
load
Loading section .text, size 0xbc lma 0x0
Start address 0x0, load size 188
Transfer rate: 1504 bits in <1 sec, 188 bytes/write.
break main
Breakpoint 1 at 0x5c
continue
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x5c: (undocumented errno -1).

No symbol table is loaded.  Use the "file" command.
请问,我下一步该怎么办,mini2440入手一个星期了,却无法展开工作.请各位帮忙.
谢谢.

我们基本没有使用过单步调试，对此就不了解了。