diff options
| -rw-r--r-- | ports/rp2/cyw43_configport.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/ports/rp2/cyw43_configport.h b/ports/rp2/cyw43_configport.h index b69cfbc26..7b1a1ae3d 100644 --- a/ports/rp2/cyw43_configport.h +++ b/ports/rp2/cyw43_configport.h @@ -117,7 +117,12 @@ static inline void cyw43_delay_us(uint32_t us) { } static inline void cyw43_delay_ms(uint32_t ms) { - mp_hal_delay_ms(ms); + // PendSV may be disabled via CYW43_THREAD_ENTER, so this delay is a busy loop. + uint32_t us = ms * 1000; + uint32_t start = mp_hal_ticks_us(); + while (mp_hal_ticks_us() - start < us) { + mp_event_handle_nowait(); + } } #define CYW43_EVENT_POLL_HOOK mp_event_handle_nowait() |