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Added check for maxlen

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root 2021-03-08 23:23:51 -06:00
parent 95b7a59156
commit 576da73a17
1 changed files with 2 additions and 2 deletions
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4
ports/raspberrypi/common-hal/pulseio/PulseIn.c
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@ -1,4 +1,4 @@
b/*
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
@ -163,7 +163,7 @@ void common_hal_pulseio_pulsein_interrupt() {
irq_clear(self->pio_interrupt);
hw_clear_bits(&self->state_machine.pio->inte0, 1u << self->state_machine.state_machine);
self->state_machine.pio->irq = 1u << self->state_machine.state_machine;
// check for a pulse thats too long (2000 us) or maxlen reached, and reset
// check for a pulse thats too long (4000 us) or maxlen reached, and reset
if (( level_count > 4000 ) || (buf_index >= self->maxlen)) {
pio_sm_set_enabled(self->state_machine.pio, self->state_machine.state_machine, false);
pio_sm_init(self->state_machine.pio, self->state_machine.state_machine, self->state_machine.offset, &self->state_machine.sm_config);