end_state = state;
else
{
- ERROR("BUG: %i is not a valid end state", state);
+ LOG_ERROR("BUG: %i is not a valid end state", state);
exit(-1);
}
}
{
int num_states = cmd->num_states;
int state_count;
- int tms;
+ int tms = 0;
state_count = 0;
while (num_states)
}
else
{
- ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
exit(-1);
}
if (type != SCAN_OUT)
{
+ /*
+ TDO should be sampled on the rising edge, and will change
+ on the falling edge.
+
+ Because there is no way to read the signal exactly at the rising edge,
+ read after the rising edge.
+
+ This is plain IEEE 1149 JTAG - nothing specific to the OpenOCD or its JTAG
+ API.
+ */
if (bitbang_interface->read())
buffer[(bit_cnt)/8] |= 1 << ((bit_cnt) % 8);
else
}
}
- /* Exit1 -> Pause */
+ /* TAP_SD & TAP_SI are illegal end states, so we always transition to the pause
+ * state which is a legal stable state from which statemove will work.
+ *
+ * Exit1 -> Pause
+ */
bitbang_interface->write(0, 0, 0);
bitbang_interface->write(1, 0, 0);
bitbang_interface->write(0, 0, 0);
if (!bitbang_interface)
{
- ERROR("BUG: Bitbang interface called, but not yet initialized");
+ LOG_ERROR("BUG: Bitbang interface called, but not yet initialized");
exit(-1);
}
{
case JTAG_END_STATE:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("end_state: %i", cmd->cmd.end_state->end_state);
+ LOG_DEBUG("end_state: %i", cmd->cmd.end_state->end_state);
#endif
if (cmd->cmd.end_state->end_state != -1)
bitbang_end_state(cmd->cmd.end_state->end_state);
break;
case JTAG_RESET:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ LOG_DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
#endif
- if (cmd->cmd.reset->trst == 1)
+ if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_reset_config & RESET_SRST_PULLS_TRST)))
{
cur_state = TAP_TLR;
}
break;
case JTAG_RUNTEST:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
+ LOG_DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
#endif
if (cmd->cmd.runtest->end_state != -1)
bitbang_end_state(cmd->cmd.runtest->end_state);
break;
case JTAG_STATEMOVE:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
+ LOG_DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
#endif
if (cmd->cmd.statemove->end_state != -1)
bitbang_end_state(cmd->cmd.statemove->end_state);
break;
case JTAG_PATHMOVE:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+ LOG_DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
#endif
bitbang_path_move(cmd->cmd.pathmove);
break;
case JTAG_SCAN:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("%s scan end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", cmd->cmd.scan->end_state);
+ LOG_DEBUG("%s scan end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", cmd->cmd.scan->end_state);
#endif
if (cmd->cmd.scan->end_state != -1)
bitbang_end_state(cmd->cmd.scan->end_state);
break;
case JTAG_SLEEP:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("sleep %i", cmd->cmd.sleep->us);
+ LOG_DEBUG("sleep %i", cmd->cmd.sleep->us);
#endif
jtag_sleep(cmd->cmd.sleep->us);
break;
default:
- ERROR("BUG: unknown JTAG command type encountered");
+ LOG_ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
}
cmd = cmd->next;