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|
//! Working with resources in a generic fashion
//!
//! ```
//! #![deny(unsafe_code)]
//! #![deny(warnings)]
//! #![feature(proc_macro)]
//! #![no_std]
//!
//! extern crate cortex_m_rtfm as rtfm;
//! extern crate stm32f103xx;
//!
//! use rtfm::{app, Resource, Threshold};
//! use stm32f103xx::{SPI1, GPIOA};
//!
//! app! {
//! device: stm32f103xx,
//!
//! resources: {
//! static GPIOA: GPIOA;
//! static SPI1: SPI1;
//! },
//!
//! tasks: {
//! EXTI0: {
//! path: exti0,
//! priority: 1,
//! resources: [GPIOA, SPI1],
//! },
//!
//! EXTI1: {
//! path: exti1,
//! priority: 2,
//! resources: [GPIOA, SPI1],
//! },
//! },
//! }
//!
//! fn init(p: init::Peripherals) -> init::LateResources {
//! init::LateResources {
//! GPIOA: p.device.GPIOA,
//! SPI1: p.device.SPI1,
//! }
//! }
//!
//! fn idle() -> ! {
//! loop {
//! rtfm::wfi();
//! }
//! }
//!
//! // A generic function that uses some resources
//! fn work<G, S>(t: &mut Threshold, gpioa: &G, spi1: &S)
//! where
//! G: Resource<Data = GPIOA>,
//! S: Resource<Data = SPI1>,
//! {
//! gpioa.claim(t, |_gpioa, t| {
//! // drive NSS low
//!
//! spi1.claim(t, |_spi1, _| {
//! // transfer data
//! });
//!
//! // drive NSS high
//! });
//! }
//!
//! // This task needs critical sections to access the resources
//! fn exti0(t: &mut Threshold, r: EXTI0::Resources) {
//! work(t, &r.GPIOA, &r.SPI1);
//! }
//!
//! // This task has direct access to the resources
//! fn exti1(t: &mut Threshold, r: EXTI1::Resources) {
//! work(t, &r.GPIOA, &r.SPI1);
//! }
//! ```
// Auto-generated. Do not modify.
|
