Hi all,

I am facing a strange problem: the JTAG tap is reading the right value
from my device but the value I defined on config file appear changed
during detection.

This is the config file:

# The bs tap
if { [info exists BSTAPID ] } {
   set _BSTAPID $BSTAPID
} else {
   set _BSTAPID 0x1b900f0f
}
jtag newtap $_CHIPNAME bs  -irlen 4 -ircapture 0x1 -irmask 0xf
-expected-id $_BSTAPID

# The CPU tap
if { [info exists CPUTAPID ] } {
   set _CPUTAPID $CPUTAPID
} else {
   set _CPUTAPID 0x07926041
}
jtag newtap $_CHIPNAME cpu  -irlen 4 -ircapture 0x1 -irmask 0xf
-expected-id $_CPUTAPID

# The SDMA tap
if { [info exists SDMATAPID ] } {
   set _SDMATAPID $SDMATAPID
} else {
   set _SDMATAPID 0
}
jtag newtap $_CHIPNAME sdma  -irlen 4 -ircapture 0x0 -irmask 0xf
-expected-id $_SDMATAPID

# The SJC tap
if { [info exists SJCTAPID ] } {
   set _SJCTAPID $SJCTAPID
} else {
   set _SJCTAPID 0x088231d
}
jtag newtap $_CHIPNAME sjc  -irlen 5 -ircapture 0x1 -irmask 0x1f
-expected-id $_SJCTAPID


Notice I defined SJC IDCODE = 0x088231d, but during detection the
openocd is looking for 0x0088231d


See:

Open On-Chip Debugger 1.0 (2009-01-16-08:27) svn:1324


BUGS? Read http://svn.berlios.de/svnroot/repos/openocd/trunk/BUGS


$URL: http://svn.berlios.de/svnroot/repos/openocd/trunk/src/openocd.c $
jtag_speed: 10
dcc downloads are enabled
Info : JTAG tap: imx.bs tap/device found: 0x1b900f0f (Manufacturer:
0x787, Part: 0xb900, Version: 0x1)
Info : JTAG Tap/device matched
Info : JTAG tap: imx.cpu tap/device found: 0x07926041 (Manufacturer:
0x020, Part: 0x7926, Version: 0x0)
Info : JTAG Tap/device matched
Warn : Tap/Device does not have IDCODE
Info : JTAG Tap/device matched
Info : JTAG tap: imx.sjc tap/device found: 0x0882301d (Manufacturer:
0x00e, Part: 0x8823, Version: 0x0)
Error: JTAG tap: imx.sjc             got: 0x0882301d (mfg: 0x00e,
part: 0x8823, ver: 0x0)
Error: JTAG tap: imx.sjc expected 1 of 1: 0x0088231d (mfg: 0x18e,
part: 0x0882, ver: 0x0)
Error: trying to validate configured JTAG chain anyway...
Error: Could not validate JTAG scan chain, IR mismatch, scan returned
0x061011. tap=imx.sdma pos=8 expected 0x1 got 0
Warn : Could not validate JTAG chain, continuing anyway...
Warn : TAP imx.cpu:
Warn : value captured during scan didn't pass the requested check:
Warn : captured: 0x0f check_value: 0x01 check_mask: 0x0f
Warn : in_handler: w/o "in_value", mismatch in SIR
Warn : no tcl port specified, using default port 6666


I think this is not just a shift problem because the 0 between 3 and 1 go away.

Someone here know about this problem?

Best Regards,

Alan
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