On Sat, Feb 11, 2012 at 2:11 PM, Ken Smith <[email protected]> wrote:
[clip]
> Flashing and debugging with the same
> firmware worked earlier today and mysteriously stopped working.
[clip]
Here's an update. I guess soft_reset_halt doesn't reset the device
properly enough to enable debugging. Also, I added polling. The
combination of things seems to have resolved the problem. Here are
updated files. The files contain some changes which don't pertain to
the fix like flashing the elf file instead of the bin.
openocd.cfg
#interface jlink
source [find interface/olimex-arm-usb-ocd.cfg]
source [find target/at91sam7x256.cfg]
adapter_khz 6000
arm7_9 dcc_downloads enable
gdb_memory_map disable
sam7x256.cpu configure -event gdb-attach {
echo "resetting the sam7x256"
reset init
gdb_breakpoint_override hard
}
EOF
.gdbinit
target remote localhost:3333
symbol-file rtosdemo.elf
monitor poll on
define flash
#monitor soft_reset_halt
monitor reset halt
monitor flash write_image rtosdemo.elf
symbol-file rtosdemo.elf
end
define reset
monitor reset halt
end
define flashboot
monitor at91sam7 gpnvm 2 set
end
document flash
flash: write rtosdemo.elf and reset the processor
end
EOF
Kindly,
ks
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