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| author | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-10-14 22:19:45 +0300 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-10-14 22:19:45 +0300 |
| commit | 36f97f19b44471f2ed1a3bd37e096ce32a852a1f (patch) | |
| tree | 5b8800126f46ecfa3b0bab7b30e9f9c80a0abfda | |
| parent | f059563507502d996c1d7dae3db6dc5a6b83d97b (diff) | |
| download | micropython-36f97f19b44471f2ed1a3bd37e096ce32a852a1f.tar.gz micropython-36f97f19b44471f2ed1a3bd37e096ce32a852a1f.zip | |
extmod/utime_mphal: sleep_us/ms(): Don't wait on negative argument.
| -rw-r--r-- | extmod/utime_mphal.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/extmod/utime_mphal.c b/extmod/utime_mphal.c index 9471ad5252..3ecdc94469 100644 --- a/extmod/utime_mphal.c +++ b/extmod/utime_mphal.c @@ -46,13 +46,19 @@ STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) { MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_obj, time_sleep); STATIC mp_obj_t time_sleep_ms(mp_obj_t arg) { - mp_hal_delay_ms(mp_obj_get_int(arg)); + mp_int_t ms = mp_obj_get_int(arg); + if (ms > 0) { + mp_hal_delay_ms(ms); + } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_ms_obj, time_sleep_ms); STATIC mp_obj_t time_sleep_us(mp_obj_t arg) { - mp_hal_delay_us(mp_obj_get_int(arg)); + mp_int_t us = mp_obj_get_int(arg); + if (us > 0) { + mp_hal_delay_us(us); + } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_us_obj, time_sleep_us); |