diff options
Diffstat (limited to '')
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/.cargo/config.toml | 14 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/Cargo.lock | 689 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/Cargo.toml | 29 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/README.md | 12 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/build.rs | 31 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/memory.x | 6 | ||||
| -rw-r--r-- | examples/stm32f411_rtc_interrupt/src/main.rs | 155 |
7 files changed, 936 insertions, 0 deletions
diff --git a/examples/stm32f411_rtc_interrupt/.cargo/config.toml b/examples/stm32f411_rtc_interrupt/.cargo/config.toml new file mode 100644 index 00000000..806f2ee9 --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/.cargo/config.toml @@ -0,0 +1,14 @@ +[target.thumbv7em-none-eabihf] + +runner = "probe-rs run --chip STM32F411CEUx" + +rustflags = [ + "-C", "link-arg=-Tlink.x", + "-C", "link-arg=-Tdefmt.x", +] + +[build] +target = "thumbv7em-none-eabihf" + +[env] +DEFMT_LOG = "debug"
\ No newline at end of file diff --git a/examples/stm32f411_rtc_interrupt/Cargo.lock b/examples/stm32f411_rtc_interrupt/Cargo.lock new file mode 100644 index 00000000..8401900a --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/Cargo.lock @@ -0,0 +1,689 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "atomic-polyfill" +version = "0.1.11" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e3ff7eb3f316534d83a8a2c3d1674ace8a5a71198eba31e2e2b597833f699b28" +dependencies = [ + "critical-section", +] + +[[package]] +name = "atomic-polyfill" +version = "1.0.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4" +dependencies = [ + "critical-section", +] + +[[package]] +name = "autocfg" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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"0.4.0"} +rtic-sync = "1.0.2" + +[dependencies.stm32f4xx-hal] +version = "0.18.0" +features = ["rt", "stm32f411"] # replace the model of your microcontroller here + +# this lets you use `cargo fix`! +[[bin]] +name = "rtc_wakeup_interrupt" +test = false +bench = false + diff --git a/examples/stm32f411_rtc_interrupt/README.md b/examples/stm32f411_rtc_interrupt/README.md new file mode 100644 index 00000000..55b7a7d6 --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/README.md @@ -0,0 +1,12 @@ +# STM32F411CEU6 RTC interrup example + +Working example to configure the internal RTC of the STM32F411CEU6 present on the Blackpill board. +After configured, it will listen to periodic wake-up interrupts happening every 10 seconds until the button on GPIO PA0 is pressed. + +## How-to + +### Build +Run `cargo +nightly build` to compile the code. If you run it for the first time, it will take some time to download and compile dependencies. + +### Run +Install `probe-rs` and configure it using the [debugging extension for VScode](https://probe.rs/docs/tools/debugger/). diff --git a/examples/stm32f411_rtc_interrupt/build.rs b/examples/stm32f411_rtc_interrupt/build.rs new file mode 100644 index 00000000..d534cc3d --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/build.rs @@ -0,0 +1,31 @@ +//! This build script copies the `memory.x` file from the crate root into +//! a directory where the linker can always find it at build time. +//! For many projects this is optional, as the linker always searches the +//! project root directory -- wherever `Cargo.toml` is. However, if you +//! are using a workspace or have a more complicated build setup, this +//! build script becomes required. Additionally, by requesting that +//! Cargo re-run the build script whenever `memory.x` is changed, +//! updating `memory.x` ensures a rebuild of the application with the +//! new memory settings. + +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + // Put `memory.x` in our output directory and ensure it's + // on the linker search path. + let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap()); + File::create(out.join("memory.x")) + .unwrap() + .write_all(include_bytes!("memory.x")) + .unwrap(); + println!("cargo:rustc-link-search={}", out.display()); + + // By default, Cargo will re-run a build script whenever + // any file in the project changes. By specifying `memory.x` + // here, we ensure the build script is only re-run when + // `memory.x` is changed. + println!("cargo:rerun-if-changed=memory.x"); +} diff --git a/examples/stm32f411_rtc_interrupt/memory.x b/examples/stm32f411_rtc_interrupt/memory.x new file mode 100644 index 00000000..f77e9f2c --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/memory.x @@ -0,0 +1,6 @@ +MEMORY +{ + /* NOTE 1 K = 1 KiBi = 1024 bytes */ + FLASH : ORIGIN = 0x08000000, LENGTH = 512K + RAM : ORIGIN = 0x20000000, LENGTH = 96K +}
\ No newline at end of file diff --git a/examples/stm32f411_rtc_interrupt/src/main.rs b/examples/stm32f411_rtc_interrupt/src/main.rs new file mode 100644 index 00000000..71ce96f8 --- /dev/null +++ b/examples/stm32f411_rtc_interrupt/src/main.rs @@ -0,0 +1,155 @@ +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] +#![feature(type_alias_impl_trait)] + +use panic_halt as _; + +#[rtic::app(device = stm32f4xx_hal::pac, peripherals = true)] +mod app { + + use stm32f4xx_hal::{ + gpio::{self, Edge, Input, Output, PushPull}, + pac::TIM1, + prelude::*, + rtc::{Rtc, Event}, + timer, + }; + + use defmt_rtt as _; + + // Resources shared between tasks + #[shared] + struct Shared { + delayval: u32, + rtc: Rtc, + } + + // Local resources to specific tasks (cannot be shared) + #[local] + struct Local { + button: gpio::PA0<Input>, + led: gpio::PC13<Output<PushPull>>, + delay: timer::DelayMs<TIM1>, + } + + + #[init] + fn init(ctx: init::Context) -> (Shared, Local) { + + let mut dp = ctx.device; + + // Configure and obtain handle for delay abstraction + // 1) Promote RCC structure to HAL to be able to configure clocks + let rcc = dp.RCC.constrain(); + + // 2) Configure the system clocks + // 25 MHz must be used for HSE on the Blackpill-STM32F411CE board according to manual + let clocks = rcc.cfgr.use_hse(25.MHz()).freeze(); + + //Configure RTC + let mut rtc = Rtc::new(dp.RTC, &mut dp.PWR); + + //Set date and time + let _ = rtc.set_year(2023); + let _ = rtc.set_month(11); + let _ = rtc.set_day(25); + let _ = rtc.set_hours(22); + let _ = rtc.set_minutes(46); + let _ = rtc.set_seconds(00); + + //Start listening to WAKE UP INTERRUPTS + rtc.enable_wakeup(10.secs()); + rtc.listen(&mut dp.EXTI, Event::Wakeup); + + + // 3) Create delay handle + let delay = dp.TIM1.delay_ms(&clocks); + + // Configure the LED pin as a push pull ouput and obtain handle + // On the Blackpill STM32F411CEU6 there is an on-board LED connected to pin PC13 + // 1) Promote the GPIOC PAC struct + let gpioc = dp.GPIOC.split(); + + // 2) Configure PORTC OUTPUT Pins and Obtain Handle + let led = gpioc.pc13.into_push_pull_output(); + + // Configure the button pin as input and obtain handle + // On the Blackpill STM32F411CEU6 there is a button connected to pin PA0 + // 1) Promote the GPIOA PAC struct + let gpioa: gpio::gpioa::Parts = dp.GPIOA.split(); + // 2) Configure Pin and Obtain Handle + let mut button = gpioa.pa0.into_pull_up_input(); + + + // Configure Button Pin for Interrupts + // 1) Promote SYSCFG structure to HAL to be able to configure interrupts + let mut syscfg = dp.SYSCFG.constrain(); + // 2) Make button an interrupt source + button.make_interrupt_source(&mut syscfg); + // 3) Configure the interruption to be triggered on a rising edge + button.trigger_on_edge(&mut dp.EXTI, Edge::Rising); + // 4) Enable gpio interrupt for button + button.enable_interrupt(&mut dp.EXTI); + + + ( + // Initialization of shared resources + Shared { delayval: 2000_u32, rtc}, + // Initialization of task local resources + Local { button, led, delay}, + ) + + } + + // Background task, runs whenever no other tasks are running + #[idle(local = [led, delay], shared = [delayval])] + fn idle(mut ctx: idle::Context) -> ! { + let led = ctx.local.led; + let delay = ctx.local.delay; + loop { + // Turn On LED + led.set_high(); + // Obtain shared delay variable and delay + delay.delay_ms(ctx.shared.delayval.lock(|del| *del)); + // Turn off LED + led.set_low(); + // Obtain shared delay variable and delay + delay.delay_ms(ctx.shared.delayval.lock(|del| *del)); + } + } + + #[task(binds = EXTI0, local = [button], shared=[delayval, rtc])] + fn gpio_interrupt_handler(mut ctx: gpio_interrupt_handler::Context) { + + ctx.shared.delayval.lock(|del| { + *del = *del - 100_u32; + if *del < 200_u32 { + *del = 2000_u32; + } + *del + }); + + ctx.shared.rtc.lock(|rtc|{ + let current_time = rtc.get_datetime(); + + defmt::info!("CURRENT TIME {:?}", current_time.as_hms()); + rtc.disable_wakeup(); + }); + + ctx.local.button.clear_interrupt_pending_bit(); + + } + + #[task(binds = RTC_WKUP, shared = [rtc])] + fn rtc_wakeup(mut ctx: rtc_wakeup::Context) { + defmt::warn!("RTC INTERRUPT!!!!"); + ctx.shared.rtc.lock(|rtc|{ + let current_time = rtc.get_datetime(); + rtc.clear_interrupt(Event::Wakeup); + defmt::info!("Current time {:?}", current_time.as_hms() ); + }); + // Your RTC wakeup interrupt handling code here + } +} |