Robin Mueller
935ee9dbb1
Changed: - Move most library components to new [`vorago-shared-periphs`](https://egit.irs.uni-stuttgart.de/rust/vorago-shared-periphs) which is mostly re-exported in this crate. - Overhaul and simplification of several HAL APIs. The system configuration and IRQ router peripheral instance generally does not need to be passed to HAL API anymore. - All HAL drivers are now type erased. The constructors will still expect and consume the PAC singleton component for resource management purposes, but are not cached anymore. - Refactoring of GPIO library to be more inline with embassy GPIO API. Added: - I2C clock timeout feature support.
78 lines
2.5 KiB
Rust
78 lines
2.5 KiB
Rust
//! Simple PWM example
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//!
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//! Outputs a PWM waveform on pin PG2.
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#![no_main]
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#![no_std]
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use cortex_m_rt::entry;
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use embedded_hal::{delay::DelayNs, pwm::SetDutyCycle};
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// Import panic provider.
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use panic_probe as _;
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// Import logger.
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use defmt_rtt as _;
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use simple_examples::peb1;
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use va416xx_hal::{
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clock::ClockConfigurator,
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pac,
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pins::PinsG,
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prelude::*,
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pwm::{get_duty_from_percent, PwmA, PwmB, PwmPin},
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timer::CountdownTimer,
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};
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#[entry]
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fn main() -> ! {
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defmt::println!("-- VA108xx PWM example application--");
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let dp = pac::Peripherals::take().unwrap();
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// Use the external clock connected to XTAL_N.
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let clocks = ClockConfigurator::new(dp.clkgen)
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.xtal_n_clk_with_src_freq(peb1::EXTCLK_FREQ)
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.freeze()
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.unwrap();
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let pinsg = PinsG::new(dp.portg);
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let mut pwm = PwmPin::new(pinsg.pg2, dp.tim9, &clocks, 10.Hz()).unwrap();
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let mut delay_timer = CountdownTimer::new(dp.tim0, &clocks);
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let mut current_duty_cycle = 0.0;
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pwm.set_duty_cycle(get_duty_from_percent(current_duty_cycle))
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.unwrap();
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pwm.enable();
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// Delete type information, increased code readibility for the rest of the code
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loop {
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let mut counter = 0;
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// Increase duty cycle continuously
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while current_duty_cycle < 1.0 {
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delay_timer.delay_ms(400);
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current_duty_cycle += 0.02;
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counter += 1;
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if counter % 10 == 0 {
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defmt::info!("current duty cycle: {}", current_duty_cycle);
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}
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pwm.set_duty_cycle(get_duty_from_percent(current_duty_cycle))
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.unwrap();
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}
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// Switch to PWMB and decrease the window with a high signal from 100 % to 0 %
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// continously
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current_duty_cycle = 0.0;
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let mut upper_limit = 1.0;
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let mut lower_limit = 0.0;
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let mut pwmb: PwmPin<PwmB> = PwmPin::from(pwm);
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pwmb.set_pwmb_lower_limit(get_duty_from_percent(lower_limit));
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pwmb.set_pwmb_upper_limit(get_duty_from_percent(upper_limit));
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while lower_limit < 0.5 {
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delay_timer.delay_ms(400);
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lower_limit += 0.01;
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upper_limit -= 0.01;
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pwmb.set_pwmb_lower_limit(get_duty_from_percent(lower_limit));
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pwmb.set_pwmb_upper_limit(get_duty_from_percent(upper_limit));
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defmt::info!("Lower limit: {}", pwmb.pwmb_lower_limit());
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defmt::info!("Upper limit: {}", pwmb.pwmb_upper_limit());
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}
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pwm = PwmPin::<PwmA>::from(pwmb);
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}
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}
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