Skip to content
Snippets Groups Projects
Select Git revision
  • dw-cmsisdap-path
  • max32xxx default protected
2 results
Search by author
  • Any Author
  • 9R 9R
  • Administrator root
  • Andreas Schildbach pink
  • Daniel Hoffend griffon
  • Definitely Not A Robot Doloo1ai
  • Dirk Jäckel Dirk Jäckel biafra
  • G G
  • Hauke Mehrtens hauke
  • Jan Morawek RFguy
  • Julian hdsjulian
  • Lila Fisch lilafisch
  • Martin Ling martinling
  • Mateusz Zalega msgctl
  • Michael Huebler mh
  • Ole Dreessen ole
  • Phileas Phileas pl
  • Philip Brechler Philip Brechler plaetzchen
  • Renze renze
  • Sabine Wolf Bine
  • Sec 42 sec
20 authors
  1. Jun 21, 2009
  3. Jun 19, 2009
  5. Jun 18, 2009
  7. Jun 17, 2009
  9. Jun 16, 2009
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · c928fe0f
      zwelch authored 
      Fix a bug preventing ICEpick "enable that TAP" code from working:
the "runtest" command wrongly finished with a JTAG reset, discarding
the work the TAP enable handler just finished!  Instead, JTAG should
stay in RUN/IDLE state.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2252 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      c928fe0f
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · a0c10dd2
      zwelch authored 
      Extend the internal JTAG event handlers to cover enable/disable,
and use those events to make sure that targets get "examined" if
they were disabled when the scan chain was first set up:

 - Remove "enum jtag_tap_event", merge with "enum jtag_event",
   so C code can now listen for TAP enable/disable events.

 - Report those events so they can trigger callbacks.

 - During startup, make target_examine() register a handler to
   catch ENABLE events for any then-disabled targets.

This fixes bugs like "can't halt target after enabling its TAP".

One class of unresolved bugs:  if the target has an ETM hooked
up to an ETB, nothing activates the ETB.  But starting up the
ETM without access to the ETB registers fails...


git-svn-id: svn://svn.berlios.de/openocd/trunk@2251 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      a0c10dd2
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 491083a2
      zwelch authored 
      Tighten error handling on TAP enable/disable paths a bit:

 - Don't enable/disable unless it's necessary.  Those event
   handlers could have nasty side effects...

 - Don't *succeed* enables/disables if there was no code which
   could have implemented that action.  This prevents bugs like
   wrongly acting as if the scan chain changed.

 - Minor whitespace cleanup in enable/disable command code.

The big problem is still the lack of code to verify scan chains
were actually updated as requested; this adds a comment on that.
I suspect the best we can do near term will be to verify IDCODE.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2250 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      491083a2
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 0de47861
      zwelch authored 
      Fix bug in a warning.  It warned about "huge IRlength" for an
older JRC with a two bit instruction register ... wrong!


git-svn-id: svn://svn.berlios.de/openocd/trunk@2249 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      0de47861
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 14f88aca
      zwelch authored 
      Fix some polling issues:

 - Don't background-poll disabled TAPs ... this was just a bug
   waiting to happen.  (And then it happened!)

 - Don't fail command line polls of disabled taps; that's not any
   kind of error, it's just that you can't do much.  But do show
   that tap-disabled status.

 - Spell "continuous" correctly in the variable name.  ;)

Not resolved by this patch:  the need for an interlock whereby
other code (like the JTAG layer) can block all other access to
the JTAG layer, e.g. while enabling or disabling TAPs.  And
that interlock needs to be timer-safe...


git-svn-id: svn://svn.berlios.de/openocd/trunk@2247 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      14f88aca
    • zwelch's avatar
      David Brownell <david-b@pacbell.net>: · 5f9b74d0
      zwelch authored 
      Doc update:  say "jtag newtap ... -disable" records the
state after exiting the RESET state, matching the only
implementation we're working with so far (TI ICEpick-C).

Matching code updates.  Now we can be sure that the
"enabled" flag value is correct after JTAG resets.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2246 b42882b7-edfa-0310-969c-e2dbd0fdcd60
      5f9b74d0