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hello_pwm
for Raspberry Pi Pico™ 2 W, submitted by flashmypico

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/** * Copyright (c) 2020 Raspberry Pi (Trading) Ltd. * * SPDX-License-Identifier: BSD-3-Clause */ // Output PWM signals on pins 0 and 1 #include "pico/stdlib.h" #include "hardware/pwm.h" int main() { /// \tag::setup_pwm[] // Tell GPIO 0 and 1 they are allocated to the PWM gpio_set_function(0, GPIO_FUNC_PWM); gpio_set_function(1, GPIO_FUNC_PWM); // Find out which PWM slice is connected to GPIO 0 (it's slice 0) uint slice_num = pwm_gpio_to_slice_num(0); // Set period of 4 cycles (0 to 3 inclusive) pwm_set_wrap(slice_num, 3); // Set channel A output high for one cycle before dropping pwm_set_chan_level(slice_num, PWM_CHAN_A, 1); // Set initial B output high for three cycles before dropping pwm_set_chan_level(slice_num, PWM_CHAN_B, 3); // Set the PWM running pwm_set_enabled(slice_num, true); /// \end::setup_pwm[] // Note we could also use pwm_set_gpio_level(gpio, x) which looks up the // correct slice and channel for a given GPIO. }

This firmware image was imported from the pico-examples repository.

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Homepage: https://github.com/raspberrypi/pico-examples

Repository: https://github.com/raspberrypi/pico-examples/tree/master/pwm/hello_pwm

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