Hi,
I have a beagle bone white board, a olimex arm-usb-ocd-h jtag emulator.
I have connected this emulator to beagle bone white (not the in built
usb-to-serial jtag connection on beagle bone).
For this as the link:
http://elinux.org/Beagleboard:BeagleBone#Optional_JTAG_Header
suggests to remove some of the resistors and add some, I did it.
All connections seem to be done OK.
Then on the software side I have openocd.
for accessing the device from openocd I'm using the following command.
==========>
sudo ./openocd -f interface/olimex-arm-usb-ocd-h.cfg -f board/bone.cfg -c
init -c "reset init"
==========>
but I'm getting error, saying UNEXPECTED IDCODE.
the error log is:
------------------------------------------------------------------->
user@ubuntu:~/anie/openocd/openocd-0.7.0/src$ sudo ./openocd -f
../tcl/interface/olimex-arm-usb-ocd-h.cfg -f ../tcl/board/bone.cfg -c init
-c "reset init"
Open On-Chip Debugger 0.7.0 (2014-01-20-12:23)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
adapter speed: 16000 kHz
trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain
connect_deassert_srst
Info : max TCK change to: 30000 kHz
Info : clock speed 15000 kHz
Info : JTAG tap: am335x.jrc tap/device found: 0x07ffffff (mfg: 0x7ff, part:
0x7fff, ver: 0x0)
Warn : JTAG tap: am335x.jrc UNEXPECTED: 0x07ffffff (mfg: 0x7ff, part:
0x7fff, ver: 0x0)
Error: JTAG tap: am335x.jrc expected 1 of 1: 0x0b94402f (mfg: 0x017, part:
0xb944, ver: 0x0)
Warn : Unexpected idcode after end of chain: 32 0x00000000
Warn : Unexpected idcode after end of chain: 64 0x00000000
Warn : Unexpected idcode after end of chain: 96 0x00000000
Warn : Unexpected idcode after end of chain: 128 0x00000000
Warn : Unexpected idcode after end of chain: 160 0x00000000
Warn : Unexpected idcode after end of chain: 192 0x00000000
Warn : Unexpected idcode after end of chain: 224 0x00000000
Warn : Unexpected idcode after end of chain: 256 0x00000000
Warn : Unexpected idcode after end of chain: 288 0x00000000
Warn : Unexpected idcode after end of chain: 320 0x00000000
Warn : Unexpected idcode after end of chain: 352 0x00000000
Warn : Unexpected idcode after end of chain: 384 0x00000000
Warn : Unexpected idcode after end of chain: 416 0x00000000
Warn : Unexpected idcode after end of chain: 448 0x00000000
Warn : Unexpected idcode after end of chain: 480 0x00000000
Warn : Unexpected idcode after end of chain: 512 0x00000000
Warn : Unexpected idcode after end of chain: 544 0x00000000
Warn : Unexpected idcode after end of chain: 576 0x00000000
Warn : Unexpected idcode after end of chain: 608 0x00000000
Error: double-check your JTAG setup (interface, speed, missing TAPs, ...)
Error: Trying to use configured scan chain anyway...
Error: am335x.jrc: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
Info : JTAG tap: am335x.jrc tap/device found: 0x02ffffff (mfg: 0x7ff, part:
0x2fff, ver: 0x0)
Warn : JTAG tap: am335x.jrc UNEXPECTED: 0x02ffffff (mfg: 0x7ff, part:
0x2fff, ver: 0x0)
Error: JTAG tap: am335x.jrc expected 1 of 1: 0x0b94402f (mfg: 0x017, part:
0xb944, ver: 0x0)
Warn : Unexpected idcode after end of chain: 32 0x00000000
Warn : Unexpected idcode after end of chain: 64 0x00000000
Warn : Unexpected idcode after end of chain: 96 0x00000000
Warn : Unexpected idcode after end of chain: 128 0x00000000
Warn : Unexpected idcode after end of chain: 160 0x00000000
Warn : Unexpected idcode after end of chain: 192 0x00000000
Warn : Unexpected idcode after end of chain: 224 0x00000000
Warn : Unexpected idcode after end of chain: 256 0x00000000
Warn : Unexpected idcode after end of chain: 288 0x00000000
Warn : Unexpected idcode after end of chain: 320 0x00000000
Warn : Unexpected idcode after end of chain: 352 0x00000000
Warn : Unexpected idcode after end of chain: 384 0x00000000
Warn : Unexpected idcode after end of chain: 416 0x00000000
Warn : Unexpected idcode after end of chain: 448 0x00000000
Warn : Unexpected idcode after end of chain: 480 0x00000000
Warn : Unexpected idcode after end of chain: 512 0x00000000
Warn : Unexpected idcode after end of chain: 544 0x00000000
Warn : Unexpected idcode after end of chain: 576 0x00000000
Warn : Unexpected idcode after end of chain: 608 0x00000000
Error: double-check your JTAG setup (interface, speed, missing TAPs, ...)
Error: Trying to use configured scan chain anyway...
Error: am335x.jrc: IR capture error; saw 0x3f not 0x01
Warn : Bypassing JTAG setup events due to errors
----------------------------------------------------------------------->
what's going wrong?
and if I try to set the telnet connection with:
telnet localhost 4444
is getting connected.
there if I use scan_chain command this is the log:
***********************************************************------>
user@ubuntu:~/anie/openocd/openocd-0.7.0/src$ telnet localhost 4444
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Open On-Chip Debugger
> targets
TargetName Type Endian TapName State
-- ------------------ ---------- ------ ------------------ ------------
0* am335x.cpu cortex_a8 little am335x.dap tap-disabled
> scan_chain
TapName Enabled IdCode Expected IrLen IrCap IrMask
-- ------------------- -------- ---------- ---------- ----- ----- ------
0 am335x.m3_dap n 0x00000000 0x4b6b902f 4 0x01 0x0f
1 am335x.dap n 0x00000000 0x4b6b902f 4 0x01 0x0f
2 am335x.jrc Y 0x02ffffff 0x*b94402f 6 0x01 0x3f
******************************************************************------>
but I'm not able to give other commands like halt, it says target not yet
examined.
As I mentioned, I'm using two config files:
1. olimex-arm-usb-ocd-h.cfg
which is a standard config file provided, contains:
---------->
interface ft2232
ft2232_device_desc "Olimex OpenOCD JTAG ARM-USB-OCD-H"
ft2232_layout olimex-jtag
ft2232_vid_pid 0x15ba 0x002b
---------->
2. the bone config file
this is the file I was successfully using with in built usb-to-serial jtag
connection on beagle bone white.
Now for this case(olimex arm-sub-ocd-h jtag emulator) with Beagle bone
white, I have just removed these four lines from this config file bone.cfg:
=============>
interface ft2232
ft2232_device_desc "BeagleBone A"
ft2232_layout xds100v2
ft2232_vid_pid 0x0403 0xa6d0 0x0403 0x6010
=============>
the reamining file is the same: see the attachment.
what is the issue??
Any help will be appreciated.
thanks,
aniket s jesu
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adapter_khz 16000
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME am335x
}
# This chip contains an IcePick-D JTAG router. The IcePick-C configuration is
almost
# compatible, but it doesn't work. For now, we will just embed the IcePick-D
# routines here.
proc icepick_d_tapenable {jrc port} {
# select router
irscan $jrc 7 -endstate IRPAUSE
drscan $jrc 8 0x89 -endstate DRPAUSE
# set ip control
irscan $jrc 2 -endstate IRPAUSE
drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE
# for icepick_D
irscan $jrc 2 -endstate IRPAUSE
drscan $jrc 32 0xe0002008 -endstate DRPAUSE
irscan $jrc 0x3F -endstate RUN/IDLE
runtest 10
}
#
# M3 DAP
#
if { [info exists M3_DAP_TAPID] } {
set _M3_DAP_TAPID $M3_DAP_TAPID
} else {
set _M3_DAP_TAPID 0x4b6b902f
}
jtag newtap $_CHIPNAME m3_dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id
$_M3_DAP_TAPID -disable
jtag configure $_CHIPNAME.m3_dap -event tap-enable "icepick_d_tapenable
$_CHIPNAME.jrc 11"
#
# Main DAP
#
if { [info exists DAP_TAPID] } {
set _DAP_TAPID $DAP_TAPID
} else {
set _DAP_TAPID 0x4b6b902f
}
jtag newtap $_CHIPNAME dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id
$_DAP_TAPID -disable
jtag configure $_CHIPNAME.dap -event tap-enable "icepick_d_tapenable
$_CHIPNAME.jrc 12"
#
# ICEpick-D (JTAG route controller)
#
if { [info exists JRC_TAPID] } {
set _JRC_TAPID $JRC_TAPID
} else {
set _JRC_TAPID 0x0b94402f
}
jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id
$_JRC_TAPID -ignore-version
jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.dap"
# some TCK tycles are required to activate the DEBUG power domain
jtag configure $_CHIPNAME.jrc -event post-reset "runtest 100"
#
# Cortex A8 target
#
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.dap -dbgbase
0x80001000
# SRAM: 64K at 0x4030.0000; use the first 16K
$_TARGETNAME configure -work-area-phys 0x40300000 -work-area-size 0x4000
$_TARGETNAME configure -event gdb-attach {
cortex_a dbginit
halt
}
reset_config trst_and_srst
