cant connect with ARM-USB-TINY

Development Boards MicroMod
1

I’m using Olimex ARM-USB-TINY with an Olimex LPC-2138 board. Fresh install, no other instances of eclipse on the computer.

The first time I try to run the sample project i’m getting this errors:

Open On-Chip Debugger 1.0 (2008-10-04-10:00) svn:exported
$URL: http://svn.berlios.de/svnroot/repos/openocd/trunk/src/openocd.c $
Info:    options.c:50 configuration_output_handler(): jtag_speed: 3, 3
Info:    options.c:50 configuration_output_handler(): Open On-Chip Debugger 1.0 (2008-10-04-10:00) svn:exported
Error:   jtag.c:1351 jtag_examine_chain(): JTAG communication failure, check connection, JTAG interface, target power etc.
Error:   jtag.c:1556 jtag_init_inner(): trying to validate configured JTAG chain anyway...
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1565 jtag_init_inner(): Could not validate JTAG chain, exit
Error:   jtag.c:1351 jtag_examine_chain(): JTAG communication failure, check connection, JTAG interface, target power etc.
Error:   jtag.c:1556 jtag_init_inner(): trying to validate configured JTAG chain anyway...
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1565 jtag_init_inner(): Could not validate JTAG chain, exit
Error:   jtag.c:1351 jtag_examine_chain(): JTAG communication failure, check connection, JTAG interface, target power etc.
Error:   jtag.c:1556 jtag_init_inner(): trying to validate configured JTAG chain anyway...
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1444 jtag_validate_chain(): Error validating JTAG scan chain, IR mismatch, scan returned 0x3f
Error:   jtag.c:1565 jtag_init_inner(): Could not validate JTAG chain, exit

second try:

Open On-Chip Debugger 1.0 (2008-10-04-10:00) svn:exported
$URL: http://svn.berlios.de/svnroot/repos/openocd/trunk/src/openocd.c $
Info:    options.c:50 configuration_output_handler(): jtag_speed: 3, 3
Info:    options.c:50 configuration_output_handler(): Open On-Chip Debugger 1.0 (2008-10-04-10:00) svn:exported
Error:   ft2232.c:1419 ft2232_init_ftd2xx(): unable to open ftdi device: 2
Error:   ft2232.c:1434 ft2232_init_ftd2xx(): ListDevices: 2

Error:   ft2232.c:1436 ft2232_init_ftd2xx(): 0: Olimex OpenOCD JTAG TINY B
Error:   ft2232.c:1436 ft2232_init_ftd2xx(): 1: x¤

this is my config file:

#daemon configuration
telnet_port 4444
gdb_port 3333

#interface
interface ft2232
ft2232_device_desc "Olimex OpenOCD JTAG TINY A"
ft2232_layout "olimex-jtag"
ft2232_vid_pid 0x15BA 0x0004
jtag_speed 3

#use combined on interfaces or targets that can't set TRST/SRST separately
reset_config trst_and_srst separate

#jtag scan chain
#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
jtag_device 4 0x1 0xf 0xe

#target configuration
daemon_startup reset

#target <type> <startup mode>
#target arm7tdmi <reset mode> <chainpos> <endianness> <variant>
target arm7tdmi little run_and_halt 0 arm7tdmi-s_r4
run_and_halt_time 0 30

#target_script 0 reset oocd_flash2138.script
working_area 0 0x40000000 0x40000 nobackup

#flash configuration
flash bank lpc2000 0x0 0x40000 0 0 0 lpc2000_v2 12000 calc_checksum

# For more information about the configuration files, take a look at:
# http://openfacts.berlios.de/index-en.phtml?title=Open+On-Chip+Debugger

Can anyone help? I did a google search after these errors and all i got was a page in German :cry:

LE: i did another fresh install on my laptop and i get the same errors

2

Seems like my power source is acting funny. It was set at 6v but it was providing only 5v (power led on board was on). Providing 6v to the board fixed both problems.