I'm using Akos Vandra's lpc17xx scripts with a recent git checkout of
OpenOCD with an lpc1766 board. Flashing seems to partially work but the
image doesn't verify. This makes me think that I have something wrong with
my clock but no value of adapter_khz seems to make it flash correctly.
Here's what I'm seeing when I try to flash. I disabled all PLL manipulation
in order to be relatively sure that the board is waking up a 4MHz. I think
this means that I'd be safe using adapter_khz of 333 or so. The adapter is
an Olimex ARM-USB-OCD.
(gdb) flash
JTAG tap: lpc1766.cpu tap/device found: 0x4ba00477 (mfg: 0x23b, part:
0xba00, ver: 0x4)
Only resetting the Cortex-M3 core, use a reset-init event handler to reset
any peripherals
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x80000684 msp: 0x10007ff0
wrote 2508 bytes from file app.bin in 4.439107s (0.552 KiB/s)
checksum mismatch - attempting binary compare
diff 0 address 0x00000004. Was 0x85 instead of 0xc5
diff 1 address 0x00000007. Was 0x80 instead of 0x00
diff 2 address 0x00000008. Was 0xc9 instead of 0xd9
diff 3 address 0x0000000c. Was 0xc9 instead of 0xe9
diff 4 address 0x00000010. Was 0xe9 instead of 0xf9
diff 5 address 0x00000015. Was 0x06 instead of 0x07
[clipped]
Here is .gdbinit.
target remote localhost:3333
symbol-file app.elf
monitor poll on
define syms
symbol-file app.elf
end
define flash
#monitor soft_reset_halt
monitor reset halt
#monitor flash write_image app.elf
monitor flash write_image app.bin 0x0 bin
monitor verify_image app.bin 0x0 bin
symbol-file app.elf
monitor reset init
end
define reboot
monitor reset init
continue
end
EOF
And here is openocd.cfg.
#set CCLK 96000
source [find interface/olimex-arm-usb-ocd.cfg]
source [find target/lpc1766.cfg]
puts [format "_TARGETNAME = %s" $_TARGETNAME]
adapter_khz 50
gdb_breakpoint_override hard
lpc1766.cpu configure -event reset-init {
puts [format "reset init = %d" 1]
mww 0x400FC040 0x01
mdw 0x400FC040
}
lpc1766.cpu configure -event gdb-attach {
mww 0x400FC040 0x01
mdw 0x400FC040
}
EOF
Any help appreciated.
ks
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