Fix Enable multiple (#13)

* Fix Start/stop multiple timers and start timers in examples

* Fix examples not compiling

* fmt

Author: usbalbin

examples/stm32g4/.cargo/config.toml

@@ -1,7 +1,6 @@
 [target.thumbv7em-none-eabihf]
 runner = 'probe-rs run --connect-under-reset'
 rustflags = [
-  "-C", "link-arg=-Tlink.x",
   "-C", "link-arg=-Tdefmt.x",
 ]
 

examples/stm32g4/src/bin/hrtim.rs

@@ -90,6 +90,8 @@ fn main() -> ! {
     out1.enable();
     out2.enable();
 
+    timer.start(&mut hr_control.control);
+
     loop {
         // Step frequency from 14.6kHz to about 146kHz(half of that when only looking at one pin)
         for i in 1..=10 {

examples/stm32g4/src/bin/master.rs

@@ -106,6 +106,10 @@ fn main() -> ! {
     out1.enable();
     out2.enable();
 
+    hr_control
+        .control
+        .start_stop_timers(|w| w.start(&mut mtimer).start(&mut timer));
+
     defmt::info!("Running");
 
     loop {

src/control.rs

@@ -6,7 +6,7 @@ use crate::fault::{
     FltMonitor1, FltMonitor2, FltMonitor3, FltMonitor4, FltMonitor5, FltMonitorSys,
 };
 
-use crate::timer;
+use crate::timer::{self, HrTimer};
 use crate::{pac, pac::HRTIM_COMMON};
 
 use super::{external_event::EevInputs, fault::FaultInputs};
@@ -272,16 +272,20 @@ pub struct HrPwmCtrl;
 pub struct Foo<'a>(&'a mut pac::hrtim_master::cr::W);
 
 impl<'a> Foo<'a> {
-    pub fn start<TIM: timer::Instance>(self, _t: &mut TIM) -> Self {
+    pub fn start<T: HrTimer>(self, _t: &mut T) -> Self {
+        use crate::timer::Instance;
+
         let w = self.0;
-        Foo(match TIM::TIMX {
+        Foo(match T::Timer::TIMX {
             timer::Timer::Master => w.mcen().set_bit(),
             timer::Timer::Tim(v) => w.tcen(v as _).set_bit(),
         })
     }
-    pub fn stop<TIM: timer::Instance>(self, _t: &mut TIM) -> Self {
+    pub fn stop<T: HrTimer>(self, _t: &mut T) -> Self {
+        use crate::timer::Instance;
+
         let w = self.0;
-        Foo(match TIM::TIMX {
+        Foo(match T::Timer::TIMX {
             timer::Timer::Master => w.mcen().clear_bit(),
             timer::Timer::Tim(v) => w.tcen(v as _).clear_bit(),
         })

src/timer.rs

@@ -115,7 +115,7 @@ pub struct DmaChannel<TIM> {
 }
 
 pub trait HrTimer {
-    type Timer;
+    type Timer: Instance;
     type Prescaler: HrtimPrescaler;
     type DacResetTrigger: DacResetTrigger;