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55
embedded-examples/stm32h7-nucleo-rtic/src/bin/blinky.rs
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embedded-examples/stm32h7-nucleo-rtic/src/bin/blinky.rs
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//! Blinks an LED
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//!
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//! This assumes that LD2 (blue) is connected to pb7 and LD3 (red) is connected
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//! to pb14. This assumption is true for the nucleo-h743zi board.
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#![no_std]
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#![no_main]
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use satrs_stm32h7_nucleo_rtic as _;
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use stm32h7xx_hal::{block, prelude::*, timer::Timer};
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use cortex_m_rt::entry;
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#[entry]
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fn main() -> ! {
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defmt::println!("starting stm32h7 blinky example");
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// Get access to the device specific peripherals from the peripheral access crate
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let dp = stm32h7xx_hal::stm32::Peripherals::take().unwrap();
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// Take ownership over the RCC devices and convert them into the corresponding HAL structs
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let rcc = dp.RCC.constrain();
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let pwr = dp.PWR.constrain();
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let pwrcfg = pwr.freeze();
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// Freeze the configuration of all the clocks in the system and
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// retrieve the Core Clock Distribution and Reset (CCDR) object
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let rcc = rcc.use_hse(8.MHz()).bypass_hse();
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let ccdr = rcc.freeze(pwrcfg, &dp.SYSCFG);
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// Acquire the GPIOB peripheral
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let gpiob = dp.GPIOB.split(ccdr.peripheral.GPIOB);
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// Configure gpio B pin 0 as a push-pull output.
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let mut ld1 = gpiob.pb0.into_push_pull_output();
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// Configure gpio B pin 7 as a push-pull output.
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let mut ld2 = gpiob.pb7.into_push_pull_output();
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// Configure gpio B pin 14 as a push-pull output.
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let mut ld3 = gpiob.pb14.into_push_pull_output();
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// Configure the timer to trigger an update every second
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let mut timer = Timer::tim1(dp.TIM1, ccdr.peripheral.TIM1, &ccdr.clocks);
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timer.start(1.Hz());
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// Wait for the timer to trigger an update and change the state of the LED
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loop {
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ld1.toggle();
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ld2.toggle();
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ld3.toggle();
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block!(timer.wait()).unwrap();
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}
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}
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embedded-examples/stm32h7-nucleo-rtic/src/bin/hello.rs
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embedded-examples/stm32h7-nucleo-rtic/src/bin/hello.rs
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#![no_main]
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#![no_std]
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use satrs_stm32h7_nucleo_rtic as _; // global logger + panicking-behavior + memory layout
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#[cortex_m_rt::entry]
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fn main() -> ! {
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defmt::println!("Hello, world!");
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satrs_stm32h7_nucleo_rtic::exit()
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}
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