extended 64-bit monotonic timer

Author: burrbull

CHANGELOG.md

@@ -14,6 +14,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+ - Extended 64-bit monotonic timer
+
 ### Fixed
 
  - map `$SpiSlave` into `SpiSlave` struct in `spi!` macro [#635]

examples/blinky-timer-irq.rs

@@ -20,6 +20,7 @@ use crate::hal::{
 use core::cell::RefCell;
 use cortex_m::interrupt::Mutex;
 use cortex_m_rt::entry;
+use fugit::ExtU32;
 
 // NOTE You can uncomment 'hprintln' here and in the code below for a bit more
 // verbosity at runtime, at the cost of throwing off the timing of the blink

examples/delay-timer-blinky.rs

@@ -9,6 +9,7 @@
 use panic_halt as _; // panic handler
 
 use cortex_m_rt::entry;
+use fugit::ExtU32;
 use stm32f4xx_hal as hal;
 
 use crate::hal::{pac, prelude::*};

examples/dynamic-gpio.rs

@@ -8,6 +8,7 @@ use nb::block;
 
 use cortex_m_rt::entry;
 use cortex_m_semihosting::hprintln;
+use fugit::ExtU32;
 use stm32f4xx_hal::{gpio::PinState, pac, prelude::*, timer::Timer};
 
 #[entry]

examples/pwm-sinus.rs

@@ -7,6 +7,7 @@ use panic_halt as _;
 
 use core::f32::consts::FRAC_PI_2;
 use cortex_m_rt::entry;
+use fugit::ExtU32;
 use micromath::F32Ext;
 use stm32f4xx_hal::{
     pac,

examples/rtc.rs

@@ -9,6 +9,7 @@ use cortex_m_rt::entry;
 use panic_halt as _;
 use rtt_target::{rprintln, rtt_init_print};
 
+use fugit::ExtU32;
 use stm32f4xx_hal::{pac, prelude::*, rtc::Rtc};
 use time::{
     macros::{date, time},

examples/rtic-adc-dma.rs

@@ -7,6 +7,7 @@ use panic_probe as _;
 #[rtic::app(device = stm32f4xx_hal::pac, dispatchers = [EXTI0])]
 mod app {
     use dwt_systick_monotonic::DwtSystick;
+    use fugit::ExtU32;
 
     use stm32f4xx_hal::{
         adc::{

examples/rtic-tick.rs

@@ -1,15 +1,18 @@
 #![no_main]
 #![no_std]
 
+use defmt_rtt as _;
 use panic_halt as _;
 
 #[rtic::app(device = stm32f4xx_hal::pac, dispatchers = [USART1])]
 mod app {
+    use fugit::ExtU64;
     use stm32f4xx_hal::{
         gpio::{Output, PC13},
         pac,
         prelude::*,
-        timer::MonoTimerUs,
+        //timer::MonoTimerUs, // Easy monotonic timer for 32-bit TIMs only
+        timer::MonoTimer64Us, // Extended 64-bit timer for 16/32-bit TIMs
     };
 
     #[shared]
@@ -20,8 +23,10 @@ mod app {
         led: PC13<Output>,
     }
 
-    #[monotonic(binds = TIM2, default = true)]
-    type MicrosecMono = MonoTimerUs<pac::TIM2>;
+    //#[monotonic(binds = TIM2, default = true)]
+    //type MicrosecMono = MonoTimerUs<pac::TIM2>;
+    #[monotonic(binds = TIM3, default = true)]
+    type MicrosecMono = MonoTimer64Us<pac::TIM3>;
 
     #[init]
     fn init(ctx: init::Context) -> (Shared, Local, init::Monotonics) {
@@ -30,8 +35,10 @@ mod app {
 
         let gpioc = ctx.device.GPIOC.split();
         let led = gpioc.pc13.into_push_pull_output();
+        defmt::info!("Start");
 
-        let mono = ctx.device.TIM2.monotonic_us(&clocks);
+        //let mono = ctx.device.TIM2.monotonic_us(&clocks);
+        let mono = ctx.device.TIM3.monotonic64_us(&clocks);
         tick::spawn().ok();
         (Shared {}, Local { led }, init::Monotonics(mono))
     }
@@ -40,5 +47,6 @@ mod app {
     fn tick(ctx: tick::Context) {
         tick::spawn_after(1.secs()).ok();
         ctx.local.led.toggle();
+        defmt::info!("Tick");
     }
 }

examples/serial.rs

@@ -4,6 +4,7 @@
 use panic_halt as _;
 
 use cortex_m_rt::entry;
+use fugit::ExtU32;
 use stm32f4xx_hal as hal;
 
 use crate::hal::{pac, prelude::*};

examples/stopwatch-with-ssd1306-and-interrupts-and-dma-i2c.rs

@@ -48,6 +48,7 @@ use embedded_graphics::{
     prelude::*,
     text::Text,
 };
+use fugit::ExtU32;
 use heapless::String;
 use ssd1306::{prelude::*, Ssd1306};