diff options
| -rw-r--r-- | stm/systick.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/stm/systick.c b/stm/systick.c index fb872ac9d5..40ae532793 100644 --- a/stm/systick.c +++ b/stm/systick.c @@ -33,10 +33,12 @@ void sys_tick_wait_at_least(uint32_t stc, uint32_t delay_ms) { if (stc_wait < stc) { // stc_wait wrapped around while (stc <= sys_tick_counter || sys_tick_counter < stc_wait) { + __WFI(); // enter sleep mode, waiting for interrupt } } else { // stc_wait did not wrap around while (stc <= sys_tick_counter && sys_tick_counter < stc_wait) { + __WFI(); // enter sleep mode, waiting for interrupt } } } |