Add simple PWM, add PWM pin definitions also accessible from low-level API.
This commit is contained in:
Matous Hybl
parent
a1f7a94c69
commit
16d09f074a
@ -1,22 +1,18 @@
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use crate::gpio;
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#[cfg(feature = "unstable-pac")]
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use crate::rcc::RccPeripheral;
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#[macro_use]
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use crate::time::Hertz;
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pub mod pins;
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use core::marker::PhantomData;
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use embassy::util::Unborrow;
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use embassy_hal_common::unborrow;
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use stm32_metapac::timer::vals::Ocm;
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pub struct Pwm<'d, T: Instance> {
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#[cfg(not(feature = "unstable-pac"))]
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phantom: PhantomData<&'d mut T>,
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#[macro_use]
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pub(crate) mod pins;
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pub mod simple_pwm;
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#[cfg(feature = "unstable-pac")]
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pub mod low_level {
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pub use super::sealed::*;
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}
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}
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// TIM2
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pub struct Ch1 {}
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pub struct Ch2 {}
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pub struct Ch3 {}
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pub struct Ch4 {}
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#[derive(Clone, Copy)]
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#[derive(Clone, Copy)]
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pub enum Channel {
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pub enum Channel {
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Ch1,
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Ch1,
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@ -25,171 +21,241 @@ pub enum Channel {
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Ch4,
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Ch4,
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}
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}
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impl<'d, T: Instance> Pwm<'d, T> {
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impl Channel {
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pub fn new<F: Into<Hertz>>(
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pub fn raw(&self) -> usize {
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_tim: impl Unborrow<Target = T> + 'd,
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match self {
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ch1: impl Unborrow<Target = impl PwmPin<T, Ch1>> + 'd,
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Channel::Ch1 => 0,
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ch2: impl Unborrow<Target = impl PwmPin<T, Ch2>> + 'd,
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Channel::Ch2 => 1,
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ch3: impl Unborrow<Target = impl PwmPin<T, Ch3>> + 'd,
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Channel::Ch3 => 2,
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ch4: impl Unborrow<Target = impl PwmPin<T, Ch4>> + 'd,
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Channel::Ch4 => 3,
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freq: F,
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}
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) -> Self {
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}
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unborrow!(ch1, ch2, ch3, ch4);
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}
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T::enable();
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#[derive(Clone, Copy)]
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T::reset();
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pub enum OutputCompareMode {
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let r = T::regs();
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Frozen,
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ActiveOnMatch,
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InactiveOnMatch,
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Toggle,
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ForceInactive,
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ForceActive,
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PwmMode1,
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PwmMode2,
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}
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let mut this = Pwm {
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impl From<OutputCompareMode> for stm32_metapac::timer::vals::Ocm {
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phantom: PhantomData,
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fn from(mode: OutputCompareMode) -> Self {
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};
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match mode {
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unsafe {
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OutputCompareMode::Frozen => stm32_metapac::timer::vals::Ocm::FROZEN,
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ch1.configure();
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OutputCompareMode::ActiveOnMatch => stm32_metapac::timer::vals::Ocm::ACTIVEONMATCH,
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ch2.configure();
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OutputCompareMode::InactiveOnMatch => stm32_metapac::timer::vals::Ocm::INACTIVEONMATCH,
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ch3.configure();
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OutputCompareMode::Toggle => stm32_metapac::timer::vals::Ocm::TOGGLE,
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ch4.configure();
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OutputCompareMode::ForceInactive => stm32_metapac::timer::vals::Ocm::FORCEINACTIVE,
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}
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OutputCompareMode::ForceActive => stm32_metapac::timer::vals::Ocm::FORCEACTIVE,
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OutputCompareMode::PwmMode1 => stm32_metapac::timer::vals::Ocm::PWMMODE1,
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unsafe {
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OutputCompareMode::PwmMode2 => stm32_metapac::timer::vals::Ocm::PWMMODE2,
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use stm32_metapac::timer::vals::Dir;
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this.set_freq(freq);
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r.cr1().write(|w| {
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w.set_cen(true);
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w.set_dir(Dir::UP)
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});
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this.set_ocm(Channel::Ch1, Ocm::PWMMODE1);
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this.set_ocm(Channel::Ch2, Ocm::PWMMODE1);
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this.set_ocm(Channel::Ch3, Ocm::PWMMODE1);
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this.set_ocm(Channel::Ch4, Ocm::PWMMODE1);
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}
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this
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}
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unsafe fn set_ocm(&mut self, channel: Channel, mode: Ocm) {
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let r = T::regs();
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match channel {
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Channel::Ch1 => r.ccmr_output(0).modify(|w| w.set_ocm(0, mode)),
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Channel::Ch2 => r.ccmr_output(0).modify(|w| w.set_ocm(1, mode)),
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Channel::Ch3 => r.ccmr_output(1).modify(|w| w.set_ocm(0, mode)),
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Channel::Ch4 => r.ccmr_output(1).modify(|w| w.set_ocm(1, mode)),
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}
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}
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unsafe fn set_enable(&mut self, channel: Channel, enable: bool) {
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let r = T::regs();
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match channel {
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Channel::Ch1 => r.ccer().modify(|w| w.set_cce(0, enable)),
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Channel::Ch2 => r.ccer().modify(|w| w.set_cce(1, enable)),
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Channel::Ch3 => r.ccer().modify(|w| w.set_cce(2, enable)),
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Channel::Ch4 => r.ccer().modify(|w| w.set_cce(3, enable)),
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}
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}
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pub fn enable(&mut self, channel: Channel) {
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unsafe { self.set_enable(channel, true) }
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}
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pub fn disable(&mut self, channel: Channel) {
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unsafe { self.set_enable(channel, false) }
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}
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pub fn set_freq<F: Into<Hertz>>(&mut self, freq: F) {
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use core::convert::TryInto;
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let clk = T::frequency();
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let r = T::regs();
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let freq: Hertz = freq.into();
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let ticks: u32 = clk.0 / freq.0;
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let psc: u16 = (ticks / (1 << 16)).try_into().unwrap();
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let arr: u16 = (ticks / (u32::from(psc) + 1)).try_into().unwrap();
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unsafe {
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r.psc().write(|w| w.set_psc(psc));
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r.arr().write(|w| w.set_arr(arr));
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}
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}
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pub fn get_max_duty(&self) -> u32 {
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let r = T::regs();
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unsafe { r.arr().read().arr() as u32 }
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}
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pub fn set_duty(&mut self, channel: Channel, duty: u32) {
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use core::convert::TryInto;
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assert!(duty < self.get_max_duty());
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let duty: u16 = duty.try_into().unwrap();
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let r = T::regs();
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unsafe {
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match channel {
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Channel::Ch1 => r.ccr(0).modify(|w| w.set_ccr(duty)),
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Channel::Ch2 => r.ccr(1).modify(|w| w.set_ccr(duty)),
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Channel::Ch3 => r.ccr(2).modify(|w| w.set_ccr(duty)),
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Channel::Ch4 => r.ccr(3).modify(|w| w.set_ccr(duty)),
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}
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}
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}
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}
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}
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}
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}
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pub(crate) mod sealed {
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pub(crate) mod sealed {
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pub trait Instance {
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use super::*;
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fn regs() -> crate::pac::timer::TimGp16;
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pub trait CaptureCompareCapable16bitInstance:
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crate::timer::sealed::GeneralPurpose16bitInstance
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{
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unsafe fn set_output_compare_mode(&mut self, channel: Channel, mode: OutputCompareMode);
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unsafe fn enable_channel(&mut self, channel: Channel, enable: bool);
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unsafe fn set_compare_value(&mut self, channel: Channel, value: u16);
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unsafe fn get_max_compare_value(&self) -> u16;
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}
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pub trait CaptureCompareCapable32bitInstance:
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crate::timer::sealed::GeneralPurpose32bitInstance
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{
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unsafe fn set_output_compare_mode(&mut self, channel: Channel, mode: OutputCompareMode);
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unsafe fn enable_channel(&mut self, channel: Channel, enable: bool);
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unsafe fn set_compare_value(&mut self, channel: Channel, value: u32);
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unsafe fn get_max_compare_value(&self) -> u32;
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}
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}
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}
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}
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pub trait Instance: sealed::Instance + Sized + RccPeripheral + 'static {}
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pub trait CaptureCompareCapable16bitInstance:
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sealed::CaptureCompareCapable16bitInstance + crate::timer::GeneralPurpose16bitInstance + 'static
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{
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}
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pub trait CaptureCompareCapable32bitInstance:
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sealed::CaptureCompareCapable32bitInstance + crate::timer::GeneralPurpose32bitInstance + 'static
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{
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}
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#[allow(unused)]
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#[allow(unused)]
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macro_rules! impl_timer {
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macro_rules! impl_compare_capable_16bit {
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($inst:ident) => {
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($inst:ident) => {
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impl crate::pwm::sealed::Instance for crate::peripherals::$inst {
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impl crate::pwm::sealed::CaptureCompareCapable16bitInstance for crate::peripherals::$inst {
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fn regs() -> crate::pac::timer::TimGp16 {
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unsafe fn set_output_compare_mode(
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crate::pac::timer::TimGp16(crate::pac::$inst.0)
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&mut self,
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}
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channel: crate::pwm::Channel,
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mode: OutputCompareMode,
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) {
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use crate::timer::sealed::GeneralPurpose16bitInstance;
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let r = self.regs_gp16();
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let raw_channel: usize = channel.raw();
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r.ccmr_output(raw_channel / 2)
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.modify(|w| w.set_ocm(raw_channel % 2, mode.into()));
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}
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}
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impl crate::pwm::Instance for crate::peripherals::$inst {}
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unsafe fn enable_channel(&mut self, channel: Channel, enable: bool) {
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use crate::timer::sealed::GeneralPurpose16bitInstance;
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self.regs_gp16()
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.ccer()
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.modify(|w| w.set_cce(channel.raw(), enable));
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}
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unsafe fn set_compare_value(&mut self, channel: Channel, value: u16) {
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use crate::timer::sealed::GeneralPurpose16bitInstance;
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self.regs_gp16()
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.ccr(channel.raw())
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.modify(|w| w.set_ccr(value));
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}
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unsafe fn get_max_compare_value(&self) -> u16 {
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use crate::timer::sealed::GeneralPurpose16bitInstance;
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self.regs_gp16().arr().read().arr()
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}
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}
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};
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};
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}
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}
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pub trait PwmPin<Timer, Channel>: gpio::OptionalPin {
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crate::pac::interrupts! {
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unsafe fn configure(&mut self);
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($inst:ident, timer, TIM_GP16, UP, $irq:ident) => {
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}
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impl_compare_capable_16bit!($inst);
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impl<Timer, Channel> PwmPin<Timer, Channel> for gpio::NoPin {
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impl CaptureCompareCapable16bitInstance for crate::peripherals::$inst {
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unsafe fn configure(&mut self) {}
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}
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};
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($inst:ident, timer, TIM_GP32, UP, $irq:ident) => {
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impl_compare_capable_16bit!($inst);
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impl crate::pwm::sealed::CaptureCompareCapable32bitInstance for crate::peripherals::$inst {
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unsafe fn set_output_compare_mode(
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&mut self,
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channel: crate::pwm::Channel,
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mode: OutputCompareMode,
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) {
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use crate::timer::sealed::GeneralPurpose32bitInstance;
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let raw_channel = channel.raw();
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self.regs_gp32().ccmr_output(raw_channel / 2).modify(|w| w.set_ocm(raw_channel % 2, mode.into()));
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}
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unsafe fn enable_channel(&mut self, channel: Channel, enable: bool) {
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use crate::timer::sealed::GeneralPurpose32bitInstance;
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self.regs_gp32().ccer().modify(|w| w.set_cce(channel.raw(), enable));
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}
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unsafe fn set_compare_value(&mut self, channel: Channel, value: u32) {
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use crate::timer::sealed::GeneralPurpose32bitInstance;
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self.regs_gp32().ccr(channel.raw()).modify(|w| w.set_ccr(value));
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}
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unsafe fn get_max_compare_value(&self) -> u32 {
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use crate::timer::sealed::GeneralPurpose32bitInstance;
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self.regs_gp32().arr().read().arr() as u32
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}
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}
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impl CaptureCompareCapable16bitInstance for crate::peripherals::$inst {
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}
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impl CaptureCompareCapable32bitInstance for crate::peripherals::$inst {
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}
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};
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($inst:ident, timer, TIM_ADV, UP, $irq:ident) => {
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impl_compare_capable_16bit!($inst);
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impl CaptureCompareCapable16bitInstance for crate::peripherals::$inst {
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}
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};
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}
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}
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#[allow(unused)]
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#[allow(unused)]
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macro_rules! impl_pwm_pin {
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macro_rules! impl_pwm_nopin {
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($timer:ident, $channel:ident, $pin:ident, $af:expr) => {
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($inst:ident) => {
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impl crate::pwm::PwmPin<crate::peripherals::$timer, crate::pwm::$channel>
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impl_no_pin!($inst, Channel1Pin);
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for crate::peripherals::$pin
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impl_no_pin!($inst, Channel1ComplementaryPin);
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{
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impl_no_pin!($inst, Channel2Pin);
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unsafe fn configure(&mut self) {
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impl_no_pin!($inst, Channel2ComplementaryPin);
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use crate::gpio::sealed::{AFType, Pin};
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impl_no_pin!($inst, Channel3Pin);
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use crate::gpio::Speed;
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impl_no_pin!($inst, Channel3ComplementaryPin);
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self.set_low();
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impl_no_pin!($inst, Channel4Pin);
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self.set_speed(Speed::VeryHigh);
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impl_no_pin!($inst, Channel4ComplementaryPin);
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self.set_as_af($af, AFType::OutputPushPull);
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impl_no_pin!($inst, ExternalTriggerPin);
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}
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impl_no_pin!($inst, BreakInputPin);
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}
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impl_no_pin!($inst, BreakInputComparator1Pin);
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impl_no_pin!($inst, BreakInputComparator2Pin);
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impl_no_pin!($inst, BreakInput2Pin);
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impl_no_pin!($inst, BreakInput2Comparator1Pin);
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impl_no_pin!($inst, BreakInput2Comparator2Pin);
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};
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};
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}
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}
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crate::pac::peripherals!(
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crate::pac::peripherals!(
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(timer, $inst:ident) => { impl_timer!($inst); };
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(timer, $inst:ident) => { impl_pwm_nopin!($inst); };
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);
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);
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crate::pac::peripheral_pins!(
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crate::pac::peripheral_pins!(
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($inst:ident, timer,TIM_GP16, $pin:ident, CH1, $af:expr) => {
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($inst:ident, timer, $block:ident, $pin:ident, CH1, $af:expr) => {
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impl_pwm_pin!($inst, Ch1, $pin, $af);
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impl_pin!($inst, Channel1Pin, $pin, $af);
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};
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};
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($inst:ident, timer,TIM_GP16, $pin:ident, CH2, $af:expr) => {
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($inst:ident, timer, $block:ident, $pin:ident, CH1N, $af:expr) => {
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impl_pwm_pin!($inst, Ch2, $pin, $af);
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impl_pin!($inst, Channel1ComplementaryPin, $pin, $af);
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};
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};
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($inst:ident, timer,TIM_GP16, $pin:ident, CH3, $af:expr) => {
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($inst:ident, timer, $block:ident, $pin:ident, CH2, $af:expr) => {
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impl_pwm_pin!($inst, Ch3, $pin, $af);
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impl_pin!($inst, Channel2Pin, $pin, $af);
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};
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};
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($inst:ident, timer,TIM_GP16, $pin:ident, CH4, $af:expr) => {
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($inst:ident, timer, $block:ident, $pin:ident, CH2N, $af:expr) => {
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impl_pwm_pin!($inst, Ch4, $pin, $af);
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impl_pin!($inst, Channel2ComplementaryPin, $pin, $af);
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};
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($inst:ident, timer, $block:ident, $pin:ident, CH3, $af:expr) => {
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impl_pin!($inst, Channel3Pin, $pin, $af);
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};
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||||||
|
($inst:ident, timer, $block:ident, $pin:ident, CH3N, $af:expr) => {
|
||||||
|
impl_pin!($inst, Channel3ComplementaryPin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, CH4, $af:expr) => {
|
||||||
|
impl_pin!($inst, Channel4Pin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, CH4N, $af:expr) => {
|
||||||
|
impl_pin!($inst, Channel4ComplementaryPin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, ETR, $af:expr) => {
|
||||||
|
impl_pin!($inst, ExternalTriggerPin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInputPin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN_COMP1, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInputComparator1Pin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN_COMP2, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInputComparator2Pin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN2, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInput2Pin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN2_COMP1, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInput2Comparator1Pin, $pin, $af);
|
||||||
|
};
|
||||||
|
($inst:ident, timer, $block:ident, $pin:ident, BKIN2_COMP2, $af:expr) => {
|
||||||
|
impl_pin!($inst, BreakInput2Comparator2Pin, $pin, $af);
|
||||||
};
|
};
|
||||||
);
|
);
|
||||||
|
|||||||
138
embassy-stm32/src/pwm/pins.rs
Normal file
138
embassy-stm32/src/pwm/pins.rs
Normal file
@ -0,0 +1,138 @@
|
|||||||
|
use crate::gpio::OptionalPin;
|
||||||
|
|
||||||
|
#[cfg(feature = "unstable-pac")]
|
||||||
|
pub mod low_level {
|
||||||
|
pub use super::sealed::*;
|
||||||
|
}
|
||||||
|
|
||||||
|
pub(crate) mod sealed {
|
||||||
|
use crate::gpio::sealed::OptionalPin;
|
||||||
|
|
||||||
|
pub trait Channel1Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait Channel1ComplementaryPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel2Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait Channel2ComplementaryPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel3Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait Channel3ComplementaryPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel4Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait Channel4ComplementaryPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait ExternalTriggerPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait BreakInputPin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait BreakInputComparator1Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait BreakInputComparator2Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait BreakInput2Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait BreakInput2Comparator1Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
pub trait BreakInput2Comparator2Pin<Timer>: OptionalPin {
|
||||||
|
unsafe fn configure(&mut self);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
pub trait Channel1Pin<Timer>: sealed::Channel1Pin<Timer> + OptionalPin + 'static {}
|
||||||
|
pub trait Channel1ComplementaryPin<Timer>:
|
||||||
|
sealed::Channel1ComplementaryPin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel2Pin<Timer>: sealed::Channel2Pin<Timer> + 'static {}
|
||||||
|
pub trait Channel2ComplementaryPin<Timer>:
|
||||||
|
sealed::Channel2ComplementaryPin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel3Pin<Timer>: sealed::Channel3Pin<Timer> + 'static {}
|
||||||
|
pub trait Channel3ComplementaryPin<Timer>:
|
||||||
|
sealed::Channel3ComplementaryPin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait Channel4Pin<Timer>: sealed::Channel4Pin<Timer> + 'static {}
|
||||||
|
pub trait Channel4ComplementaryPin<Timer>:
|
||||||
|
sealed::Channel4ComplementaryPin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait ExternalTriggerPin<Timer>:
|
||||||
|
sealed::ExternalTriggerPin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait BreakInputPin<Timer>: sealed::BreakInputPin<Timer> + OptionalPin + 'static {}
|
||||||
|
pub trait BreakInputComparator1Pin<Timer>:
|
||||||
|
sealed::BreakInputComparator1Pin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
pub trait BreakInputComparator2Pin<Timer>:
|
||||||
|
sealed::BreakInputComparator2Pin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
pub trait BreakInput2Pin<Timer>: sealed::BreakInput2Pin<Timer> + OptionalPin + 'static {}
|
||||||
|
pub trait BreakInput2Comparator1Pin<Timer>:
|
||||||
|
sealed::BreakInput2Comparator1Pin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
pub trait BreakInput2Comparator2Pin<Timer>:
|
||||||
|
sealed::BreakInput2Comparator2Pin<Timer> + OptionalPin + 'static
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
macro_rules! impl_no_pin {
|
||||||
|
($timer:ident, $signal:ident) => {
|
||||||
|
impl crate::pwm::pins::sealed::$signal<crate::peripherals::$timer> for crate::gpio::NoPin {
|
||||||
|
unsafe fn configure(&mut self) {}
|
||||||
|
}
|
||||||
|
impl crate::pwm::pins::$signal<crate::peripherals::$timer> for crate::gpio::NoPin {}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
#[allow(unused)]
|
||||||
|
macro_rules! impl_pin {
|
||||||
|
($timer:ident, $signal:ident, $pin:ident, $af:expr) => {
|
||||||
|
impl crate::pwm::pins::sealed::$signal<crate::peripherals::$timer>
|
||||||
|
for crate::peripherals::$pin
|
||||||
|
{
|
||||||
|
unsafe fn configure(&mut self) {
|
||||||
|
use crate::gpio::sealed::{AFType, Pin};
|
||||||
|
use crate::gpio::Speed;
|
||||||
|
self.set_low();
|
||||||
|
self.set_speed(Speed::VeryHigh);
|
||||||
|
self.set_as_af($af, AFType::OutputPushPull);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl crate::pwm::pins::$signal<crate::peripherals::$timer> for crate::peripherals::$pin {}
|
||||||
|
};
|
||||||
|
}
|
||||||
80
embassy-stm32/src/pwm/simple_pwm.rs
Normal file
80
embassy-stm32/src/pwm/simple_pwm.rs
Normal file
@ -0,0 +1,80 @@
|
|||||||
|
use crate::{
|
||||||
|
pwm::{pins::*, CaptureCompareCapable16bitInstance, Channel, OutputCompareMode},
|
||||||
|
time::Hertz,
|
||||||
|
};
|
||||||
|
use core::marker::PhantomData;
|
||||||
|
use embassy::util::Unborrow;
|
||||||
|
use embassy_hal_common::unborrow;
|
||||||
|
|
||||||
|
pub struct SimplePwm<'d, T> {
|
||||||
|
phantom: PhantomData<&'d mut T>,
|
||||||
|
inner: T,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<'d, T: CaptureCompareCapable16bitInstance> SimplePwm<'d, T> {
|
||||||
|
pub fn new<F: Into<Hertz>>(
|
||||||
|
tim: impl Unborrow<Target = T> + 'd,
|
||||||
|
ch1: impl Unborrow<Target = impl Channel1Pin<T>> + 'd,
|
||||||
|
ch2: impl Unborrow<Target = impl Channel2Pin<T>> + 'd,
|
||||||
|
ch3: impl Unborrow<Target = impl Channel3Pin<T>> + 'd,
|
||||||
|
ch4: impl Unborrow<Target = impl Channel4Pin<T>> + 'd,
|
||||||
|
freq: F,
|
||||||
|
) -> Self {
|
||||||
|
unborrow!(tim, ch1, ch2, ch3, ch4);
|
||||||
|
|
||||||
|
T::enable();
|
||||||
|
<T as crate::rcc::sealed::RccPeripheral>::reset();
|
||||||
|
|
||||||
|
unsafe {
|
||||||
|
ch1.configure();
|
||||||
|
ch2.configure();
|
||||||
|
ch3.configure();
|
||||||
|
ch4.configure();
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut this = Self {
|
||||||
|
inner: tim,
|
||||||
|
phantom: PhantomData,
|
||||||
|
};
|
||||||
|
|
||||||
|
this.inner.set_frequency(freq);
|
||||||
|
this.inner.start();
|
||||||
|
|
||||||
|
unsafe {
|
||||||
|
this.inner
|
||||||
|
.set_output_compare_mode(Channel::Ch1, OutputCompareMode::PwmMode1);
|
||||||
|
this.inner
|
||||||
|
.set_output_compare_mode(Channel::Ch2, OutputCompareMode::PwmMode1);
|
||||||
|
this.inner
|
||||||
|
.set_output_compare_mode(Channel::Ch3, OutputCompareMode::PwmMode1);
|
||||||
|
this.inner
|
||||||
|
.set_output_compare_mode(Channel::Ch4, OutputCompareMode::PwmMode1);
|
||||||
|
}
|
||||||
|
this
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn enable(&mut self, channel: Channel) {
|
||||||
|
unsafe {
|
||||||
|
self.inner.enable_channel(channel, true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn disable(&mut self, channel: Channel) {
|
||||||
|
unsafe {
|
||||||
|
self.inner.enable_channel(channel, false);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn set_freq<F: Into<Hertz>>(&mut self, freq: F) {
|
||||||
|
self.inner.set_frequency(freq);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn get_max_duty(&self) -> u16 {
|
||||||
|
unsafe { self.inner.get_max_compare_value() }
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn set_duty(&mut self, channel: Channel, duty: u16) {
|
||||||
|
assert!(duty < self.get_max_duty());
|
||||||
|
unsafe { self.inner.set_compare_value(channel, duty) }
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user