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Added code to reset SM program counter during a restart

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root 2021-07-12 14:09:11 -05:00
parent 9d5fbea7a3
commit 490f263a41
1 changed files with 3 additions and 1 deletions
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4
ports/raspberrypi/common-hal/rp2pio/StateMachine.c
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@ -498,7 +498,9 @@ void common_hal_rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
void common_hal_rp2pio_statemachine_restart(rp2pio_statemachine_obj_t *self) {
pio_sm_restart(self->pio, self->state_machine);
// Reset program counter to the original offset. A JMP is 0x0000 plus
// the desired offset, so we can just use self->offset.
pio_sm_exec(self->pio, self->state_machine,self->offset);
uint8_t pio_index = pio_get_index(self->pio);
common_hal_rp2pio_statemachine_stop(self);
uint32_t pins_we_use = _current_sm_pins[pio_index][self->state_machine];