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| author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-04-09 05:50:34 +0000 |
|---|---|---|
| committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-04-09 05:50:34 +0000 |
| commit | a0647227439434c4a71470e336ec8715d43d0501 (patch) | |
| tree | c32efbf7f71bf620ea2c1c72ed9e7f30b036727e /src/jtag/jtag.h | |
| parent | 94320a1dc3394e90560fd4f0cddc3362a4337275 (diff) | |
| download | openocd_libswd-a0647227439434c4a71470e336ec8715d43d0501.tar.gz openocd_libswd-a0647227439434c4a71470e336ec8715d43d0501.tar.bz2 openocd_libswd-a0647227439434c4a71470e336ec8715d43d0501.tar.xz openocd_libswd-a0647227439434c4a71470e336ec8715d43d0501.zip | |
- added "init" command. "init" and "reset" at end of startup script is equivalent
to daemon_startup(still supported).
- print warning if srst and trst change state at the same time when srst_and_trst
is seperate
- reset now performs a trst, examines and validates the jtag chain before targets
assert reset
- if startup fails to examine and validate the jtag chain, try a reset before
trying again
git-svn-id: svn://svn.berlios.de/openocd/trunk@552 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag/jtag.h')
| -rw-r--r-- | src/jtag/jtag.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 19329447..b7ce094d 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -241,8 +241,12 @@ enum reset_types extern enum reset_types jtag_reset_config; -/* JTAG subsystem */ +/* initialize JTAG chain using only a TLR reset. If init fails, + * try reset + init. + */ extern int jtag_init(struct command_context_s *cmd_ctx); +/* reset, then initialize JTAG chain */ +extern int jtag_init_reset(struct command_context_s *cmd_ctx); extern int jtag_register_commands(struct command_context_s *cmd_ctx); /* JTAG interface, can be implemented with a software or hardware fifo @@ -325,6 +329,10 @@ extern int interface_jtag_add_runtest(int num_cycles, enum tap_state endstate); * This is why combinations such as "reset_config srst_only srst_pulls_trst" * are supported. * + * only req_tlr_or_trst and srst can have a transition for a + * call as the effects of transitioning both at the "same time" + * are undefined, but when srst_pulls_trst or vice versa, + * then trst & srst *must* be asserted together. */ extern void jtag_add_reset(int req_tlr_or_trst, int srst); /* this drives the actual srst and trst pins. srst will always be 0 |