diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/core.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/jtag/core.c b/src/jtag/core.c index 415d1e82..7c85839b 100644 --- a/src/jtag/core.c +++ b/src/jtag/core.c @@ -567,12 +567,14 @@ int jtag_add_statemove(tap_state_t goal_state) tap_state_name(goal_state)); - if (goal_state == cur_state) - ; /* nothing to do */ - else if (goal_state == TAP_RESET) - { + /* If goal is RESET, be paranoid and force that that transition + * (e.g. five TCK cycles, TMS high). Else trust "cur_state". + */ + if (goal_state == TAP_RESET) jtag_add_tlr(); - } + else if (goal_state == cur_state) + /* nothing to do */ ; + else if (tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state)) { unsigned tms_bits = tap_get_tms_path(cur_state, goal_state); |