# LPC 2129

**URL:** <https://community.sparkfun.com/t/lpc-2129/8418>\
**Category:** MicroMod\
**Tags:** arm-lpc\
**Created:** [September 8, 2008, 6:56am UTC](https://community.sparkfun.com/t/lpc-2129/8418 "2008-09-08T06:56:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![krsihna](https://avatars.discourse-cdn.com/v4/letter/k/ba9def/32.png) [@krsihna](https://community.sparkfun.com/u/krsihna)\
**Post date:** [September 8, 2008, 6:56am UTC](https://community.sparkfun.com/t/lpc-2129/8418/1 "2008-09-08T06:56:42Z")

</div>

hai iam new to LPC 2129 and openocd.

i have installed openocd\_0.0+r211-1\_i386 deb for ubuntu.

when i run my openocd with config file iam getting the following errors

root@shrey-desktop:/usr/bin# openocd -f openocd1.cfg

Info: openocd.c:93 main(): Open On-Chip Debugger (2007-09-05 09:00 CEST)

Error: jtag.c:1253 jtag\_examine\_chain(): JTAG communication failure, check connection, JTAG interface, target power etc.

Error: jtag.c:1440 jtag\_init(): trying to validate configured JTAG chain anyway…

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1346 jtag\_validate\_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f

Error: jtag.c:1448 jtag\_init(): Could not validate JTAG chain, exit

root@shrey-desktop:/usr/bin#

my opeocd1.cfg file is as follows:

#daemon configuration

telnet\_port 4444

gdb\_port 3333

#interface

interface parport

parport\_port 0x378

parport\_cable wiggler

jtag\_speed 0

#use combined on interfaces or targets that can’t set TRST/SRST separately

reset\_config trst\_and\_srst srst\_pulls\_trst

#jtag scan chain

#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)

jtag\_device 4 0x1 0xf 0xe

jtag\_nsrst\_delay 333

jtag\_ntrst\_delay 333

#target configuration

daemon\_startup reset

#target

#target arm7tdmi

target arm7tdmi little run\_and\_halt 0 arm7tdmi-s\_r4

run\_and\_halt\_time 0 30

working\_area 0 0x00000000 0x400000 nobackup

#flash bank \<chip\_width\> \<bus\_width\>

flash bank lpc2000 0x0 0x40000 0 0 0 lpc2000\_v1 0 14765 calc\_checksum

please help me reagrding this issue.