diff options
| -rw-r--r-- | ports/esp32s2/common-hal/pulseio/PulseIn.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/ports/esp32s2/common-hal/pulseio/PulseIn.c b/ports/esp32s2/common-hal/pulseio/PulseIn.c index f7429ec12..9feeea147 100644 --- a/ports/esp32s2/common-hal/pulseio/PulseIn.c +++ b/ports/esp32s2/common-hal/pulseio/PulseIn.c @@ -77,7 +77,9 @@ void pulsein_reset(void) { for (size_t i = 0; i < RMT_CHANNEL_MAX; i++) { handles[i] = NULL; } - supervisor_disable_tick(); + if (refcount != 0) { + supervisor_disable_tick(); + } refcount = 0; } @@ -122,8 +124,10 @@ void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self, const mcu // start RMT RX, and enable ticks so the core doesn't turn off. rmt_rx_start(channel, true); - supervisor_enable_tick(); refcount++; + if (refcount == 1) { + supervisor_enable_tick(); + } } bool common_hal_pulseio_pulsein_deinited(pulseio_pulsein_obj_t* self) { |