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Turn off interrupts while in handler

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root 2020-08-03 11:31:12 -05:00
parent 45dee6e77b
commit 9203a77804
1 changed files with 4 additions and 0 deletions
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4
ports/atmel-samd/common-hal/pulseio/PulseIn.c
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@ -77,6 +77,8 @@ static void pulsein_set_config(pulseio_pulsein_obj_t* self, bool first_edge) {
}
void pulsein_interrupt_handler(uint8_t channel) {
// turn off interrupts while in the handler
common_hal_mcu_disable_interrupts();
// Grab the current time first.
uint32_t current_overflow = overflow_count;
Tc* tc = tc_insts[pulsein_tc_index];
@ -89,6 +91,7 @@ void pulsein_interrupt_handler(uint8_t channel) {
pulseio_pulsein_obj_t* self = get_eic_channel_data(channel);
if (!supervisor_background_tasks_ok() ) {
common_hal_mcu_enable_interrupts();
mp_raise_RuntimeError(translate("Input taking too long"));
return;
}
@ -122,6 +125,7 @@ void pulsein_interrupt_handler(uint8_t channel) {
}
self->last_overflow = current_overflow;
self->last_count = current_count;
common_hal_mcu_enable_interrupts();
}
void pulsein_reset() {