59 lines
1.2 KiB
Rust
59 lines
1.2 KiB
Rust
//! Using a device crate
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//!
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//! Crates generated using [`svd2rust`] are referred to as device crates. These
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//! crates provides an API to access the peripherals of a device. When you
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//! depend on one of these crates and the "rt" feature is enabled you don't need
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//! link to the cortex-m-rt crate.
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//!
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//! [`svd2rust`]: https://crates.io/crates/svd2rust
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//!
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//! Device crates also provide an `interrupt!` macro to register interrupt
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//! handlers.
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//!
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//! This example depends on the [`stm32f103xx`] crate so you'll have to add it
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//! to your Cargo.toml.
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//!
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//! [`stm32f103xx`]: https://crates.io/crates/stm32f103xx
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//!
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//! ```
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//! $ edit Cargo.toml && cat $_
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//! [dependencies.stm32f103xx]
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//! features = ["rt"]
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//! version = "0.7.0"
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//! ```
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//!
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//! ---
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#![no_std]
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extern crate cortex_m;
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#[macro_use(exception, interrupt)]
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extern crate stm32f103xx;
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use cortex_m::interrupt;
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fn main() {
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interrupt::free(|cs| {
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let _gpioa = stm32f103xx::GPIOA.borrow(cs);
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// do something with GPIOA
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});
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}
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exception!(SYS_TICK, tick, locals: {
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ticks: u32 = 0;
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});
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fn tick(l: &mut SYS_TICK::Locals) {
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l.ticks += 1;
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// ..
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}
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interrupt!(TIM2, tock, locals: {
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tocks: u32 = 0;
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});
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fn tock(l: &mut TIM2::Locals) {
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l.tocks += 1;
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// ..
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}
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