diff options
| -rw-r--r-- | src/target/cortex_m3.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c index 5789870f..53ecd0a9 100644 --- a/src/target/cortex_m3.c +++ b/src/target/cortex_m3.c @@ -512,16 +512,19 @@ int cortex_m3_poll(target_t *target) } } - /* - if (cortex_m3->dcb_dhcsr & S_SLEEP) - target->state = TARGET_SLEEP; - */ + /* REVISIT when S_SLEEP is set, it's in a Sleep or DeepSleep state. + * How best to model low power modes? + */ -#if 0 - /* Read Debug Fault Status Register, added to figure out the lockup when running flashtest.script */ - mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr); - LOG_DEBUG("dcb_dhcsr 0x%x, nvic_dfsr 0x%x, target->state: %s", cortex_m3->dcb_dhcsr, cortex_m3->nvic_dfsr, target_state_name(target)); -#endif + if (target->state == TARGET_UNKNOWN) + { + /* check if processor is retiring instructions */ + if (cortex_m3->dcb_dhcsr & S_RETIRE_ST) + { + target->state = TARGET_RUNNING; + return ERROR_OK; + } + } return ERROR_OK; } |