SparkFun Forums

[qchen10]

Hi:
use the openocd in the windows xp.
start up with openocd-pp -f arm7_wig.cfg in the firist window.

start gdb in the cygwin shell as below in the second shell:
arm-elf-gdb
target remote:3333
load main.elf
symbol-file main.elf
b main

up to this step it's ok.

then type "c"
the error was occured, the gdb can,t stop at main entry. the openocd window(the first window) display as below:
info: arm7_9_common.c:274 arm7_9_add_breakpoint(): sw breakspoint requested, but software breakpoints not
enabled.

I debug the same codes with the ocdremote in macraigor, its ok. so i doubt the error come from the openocd.
could you hlep to provide infomation to solve it.

by a way , how to send the attachments in the forum, as if it can't send attachments.

[Dominic]

You have to use the "monitor arm7_9 sw_bkpts_enable" command, at some point after connecting to the OpenOCD (after the target remote... line). This tells the OpenOCD to enable the use of software breakpoints, which are disabled by default on ARM7, as they take away one of the two hardware breakpoints.

Regards,

Dominic

[qchen10]

sorry, type the command monitor arm7_9 sw_bkpts_enable after the line of target remote: 3333, the gdb info the command not found.

[Dominic]

D'oh, sorry, it's "arm7_9 sw_bkpts enable" - there was an additional underscore.

Regards,

Dominic

[qchen10]

its ok

thank Dominic