Error: JTAG scan chain interrogation failed: all ones

Development Boards MicroMod
1

I have been trying to run openocd using a parallel port. So far I had small success.

First, I am using the version 0.4.0 of OpenOCD.

I downloaded and configured using:

./configure --enable-parport
make
make install

Next, I used the following configuration files:

paralela.cfg

#daemon configuration
telnet_port 4444
gdb_port 3333

#interface
interface parport
parport_port 0x378
parport_cable wiggler

and then, Lm3s811.cfg which came with OpenOCD v0.2.0

# Script for luminary lm3s811

if { [info exists CHIPNAME] } {	
   set  _CHIPNAME $CHIPNAME    
} else {	 
   set  _CHIPNAME lm3s811
}

if { [info exists ENDIAN] } {	
   set  _ENDIAN $ENDIAN    
} else {	 
  # this defaults to a little endian
   set  _ENDIAN little
}

if { [info exists CPUTAPID ] } {
   set _CPUTAPID $CPUTAPID
} else {
  # force an error till we get a good number
   set _CPUTAPID 0x3ba00477
}

# jtag speed
jtag_khz 1

jtag_nsrst_delay 100
jtag_ntrst_delay 100

#LM3S811 Evaluation Board has only srst
reset_config srst_only

#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0xf -expected-id $_CPUTAPID

# the luminary variant causes a software reset rather than asserting SRST
# this stops the debug registers from being cleared
# this will be fixed in later revisions of silicon
set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME -variant lm3s

# 8k working area at base of ram
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x20000000 -work-area-size 0x2000 -work-area-backup 0

Then, following error comes when I use

openocd -f paralela.cfg -f lm3s811.cfg

Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.

Can someone please help me!

Thanks!

2

Were you able to figure out this problem? I’m having the same issue…

3

I tested OK on LM3S201, you can try the latest version.