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Use common_hal_rp2pio_statemachine_construct for PulseIn

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This commit is contained in:
Michael Wisslead 2022-05-03 04:00:58 +00:00
parent 6f4f7e089e
commit 893fc66d16
1 changed files with 18 additions and 24 deletions
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42
ports/raspberrypi/common-hal/pulseio/PulseIn.c
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@ -40,7 +40,7 @@
#define MAX_PULSE 65535
#define MIN_PULSE 10
uint16_t pulsein_program[] = {
static const uint16_t pulsein_program[] = {
0x4001, // 1: in pins, 1
};
@ -57,29 +57,23 @@ void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t *self,
self->start = 0;
self->len = 0;
bool ok = rp2pio_statemachine_construct(&self->state_machine,
pulsein_program, sizeof(pulsein_program) / sizeof(pulsein_program[0]),
1000000,
NULL, 0,
NULL, 0,
pin, 1,
0,0,
NULL, 0,
NULL, 0,
1, 0,
NULL, // jump pin
1 << self->pin, false, true,
false, 8, false, // TX, unused
false,
true, 32, true, // RX auto-push every 32 bits
false, // claim pins
false, // Not user-interruptible.
false, // No sideset enable
0, -1); // wrap settings
if (!ok) {
mp_raise_RuntimeError(translate("All state machines in use"));
}
common_hal_rp2pio_statemachine_construct(&self->state_machine,
pulsein_program, MP_ARRAY_SIZE(pulsein_program),
1000000, // frequency
NULL, 0, // init, init_len
NULL, 0, 0, 0, // first out pin, # out pins, initial_out_pin_state
pin, 1, 0, 0, // first in pin, # in pins
NULL, 0, 0, 0, // first set pin
NULL, 0, 0, 0, // first sideset pin
false, // No sideset enable
NULL, PULL_NONE, // jump pin, jmp_pull
0, // wait gpio pins
true, // exclusive pin usage
false, 8, false, // TX, setting we don't use
false, // wait for TX stall
true, 32, true, // RX auto pull every 32 bits. shift left to output msb first
false, // Not user-interruptible.
0, -1); // wrap settings
pio_sm_set_enabled(self->state_machine.pio,self->state_machine.state_machine, false);
pio_sm_clear_fifos(self->state_machine.pio,self->state_machine.state_machine);