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author | David Brownell <dbrownell@users.sourceforge.net> | 2009-10-26 00:36:03 -0700 |
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committer | David Brownell <dbrownell@users.sourceforge.net> | 2009-10-26 00:36:03 -0700 |
commit | 6cb1d10cdad509939e3decf089e08c289d85d5cf (patch) | |
tree | ad1b0c30d9b95c0ee34594a0f538bd68133efe2e /testing/examples/STR710Test/test_ram.hex | |
parent | 0cac8b67be5c6f6f5b2bc3a86f78d4d02e364792 (diff) | |
download | openocd_libswd-6cb1d10cdad509939e3decf089e08c289d85d5cf.tar.gz openocd_libswd-6cb1d10cdad509939e3decf089e08c289d85d5cf.tar.bz2 openocd_libswd-6cb1d10cdad509939e3decf089e08c289d85d5cf.tar.xz openocd_libswd-6cb1d10cdad509939e3decf089e08c289d85d5cf.zip |
JTAG: simple autoprobing
This patch adds basic autoprobing support for the JTAG scan chains
which cooperate. To use, you can invoke OpenOCD with just:
- interface spec: "-f interface/...cfg"
- possibly with "-c 'reset_config ...'" for SRST/TRST
- possibly with "-c 'jtag_khz ...'" for the JTAG clock
Then set up config files matching the reported TAPs. It doesn't
declare targets ... just TAPs. So facilities above the JTAG and
SVF/XSVF levels won't be available without a real config; this is
almost purely a way to generate diagnostics.
Autoprobe was successful with most boards I tested, except ones
incorporating C55x DSPs (which don't cooperate with this scheme
for IR length autodetection). Here's what one multi-TAP chip
reported, with the "Warn:" prefixes removed:
clock speed 500 kHz
There are no enabled taps. AUTO PROBING MIGHT NOT WORK!!
AUTO auto0.tap - use "jtag newtap auto0 tap -expected-id 0x2b900f0f ..."
AUTO auto1.tap - use "jtag newtap auto1 tap -expected-id 0x07926001 ..."
AUTO auto2.tap - use "jtag newtap auto2 tap -expected-id 0x0b73b02f ..."
AUTO auto0.tap - use "... -irlen 4"
AUTO auto1.tap - use "... -irlen 4"
AUTO auto2.tap - use "... -irlen 6"
no gdb ports allocated as no target has been specified
The patch tweaks IR setup a bit, so we can represent TAPs with
undeclared IR length.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Diffstat (limited to 'testing/examples/STR710Test/test_ram.hex')
0 files changed, 0 insertions, 0 deletions