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author | David Brownell <dbrownell@users.sourceforge.net> | 2009-12-14 15:55:51 -0800 |
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committer | David Brownell <dbrownell@users.sourceforge.net> | 2009-12-14 15:55:51 -0800 |
commit | af79925eb1937044977f969a53ea3b7635f576b1 (patch) | |
tree | 6b7a97dda6a67ba1f3fe4d711edd4aae0d58b148 /doc | |
parent | 6f929dbd93e1b2c0373f389060bf64e60e8194ab (diff) | |
download | riscv-openocd-af79925eb1937044977f969a53ea3b7635f576b1.zip riscv-openocd-af79925eb1937044977f969a53ea3b7635f576b1.tar.gz riscv-openocd-af79925eb1937044977f969a53ea3b7635f576b1.tar.bz2 |
jtag: add '-ignore-version' option
Add a "-ignore-version" to "jtag newtap" which makes the IDCODE
comparison logic optionally ignore version differences.
Update the "scan_chain" command to illustrate this by showing
the "*" character instead of the (ignored) version nibble.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Diffstat (limited to 'doc')
-rw-r--r-- | doc/openocd.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index a83c966..01dfa76 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -2763,6 +2763,12 @@ are provided in vendors' chip documentation, usually a technical reference manual. Sometimes you may need to probe the JTAG hardware to find these values. @xref{Autoprobing}. +@item @code{-ignore-version} +@*Specify this to ignore the JTAG version field in the @code{-expected-id} +option. When vendors put out multiple versions of a chip, or use the same +JTAG-level ID for several largely-compatible chips, it may be more practical +to ignore the version field than to update config files to handle all of +the various chip IDs. @item @code{-ircapture} @var{NUMBER} @*The bit pattern loaded by the TAP into the JTAG shift register on entry to the @sc{ircapture} state, such as 0x01. |