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nrf/modules/machine/soft_pwm: Ensure duty_width is always valid.

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Signed-off-by: Andrew Leech <andrew@alelec.net>
This commit is contained in:
Andrew Leech 2024-06-05 12:22:03 +10:00 committed by Damien George
parent 62e0fa04a7
commit 5e80416e6d
1 changed files with 2 additions and 0 deletions
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2
ports/nrf/modules/machine/soft_pwm.c
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@ -199,6 +199,8 @@ static void machine_soft_pwm_start(machine_pwm_obj_t *self) {
duty_width = self->duty * DUTY_FULL_SCALE / 65536;
} else if (self->duty_mode == DUTY_NS) {
duty_width = (uint64_t)self->duty * self->freq * DUTY_FULL_SCALE / 1000000000ULL;
} else {
mp_raise_ValueError(MP_ERROR_TEXT("invalid duty mode"));
}
pwm_set_duty_cycle(self->pwm_pin, duty_width);
}