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// # Pointers (old)
//
// ~40~ 32 bytes .bss
//
// # Indices (new)
//
// 12 bytes .bss
#![deny(unsafe_code)]
#![deny(warnings)]
#![feature(proc_macro)]
#![feature(proc_macro_gen)]
#![no_main]
#![no_std]
extern crate cortex_m;
#[macro_use]
extern crate cortex_m_rt as rt;
extern crate cortex_m_rtfm as rtfm;
extern crate panic_semihosting;
extern crate stm32f103xx;
use cortex_m::asm;
use rt::ExceptionFrame;
use rtfm::app;
app! {
device: stm32f103xx,
init: {
schedule_now: [a],
},
free_interrupts: [EXTI1],
tasks: {
exti0: {
interrupt: EXTI0,
schedule_now: [a],
},
a: {},
},
}
#[inline(always)]
fn init(mut ctxt: init::Context) -> init::LateResources {
ctxt.tasks.a.schedule_now(&mut ctxt.priority).unwrap();
init::LateResources {}
}
fn exti0(mut ctxt: exti0::Context) {
ctxt.tasks.a.schedule_now(&mut ctxt.priority).unwrap();
}
fn a(_ctxt: a::Context) {
asm::bkpt();
}
exception!(HardFault, hard_fault);
fn hard_fault(ef: &ExceptionFrame) -> ! {
panic!("HardFault at {:#?}", ef);
}
exception!(*, default_handler);
fn default_handler(irqn: i16) {
panic!("Unhandled exception (IRQn = {})", irqn);
}
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