Module software 

Available on crate feature unstable only.

Software Interrupts

SoftwareInterrupt raises or resets software interrupts with raise() and reset(). The HAL reserves FROM_CPU_INTR0 and FROM_CPU_INTR1 for inter-processor call (IPC).

Examples

// Take the interrupt you want to use.
let mut int0 = SoftwareInterrupt::new(peripherals.FROM_CPU_INTR2);

// Set up the interrupt handler. Do this in a critical section so the global
// contains the interrupt object before the interrupt is triggered.
critical_section::with(|cs| {
    int0.set_interrupt_handler(swint0_handler);
    SWINT0.borrow_ref_mut(cs).replace(int0);
});

// ... somewhere outside of your main function

// Define a shared handle to the software interrupt.
static SWINT0: Mutex<RefCell<Option<SoftwareInterrupt<2>>>> = Mutex::new(RefCell::new(None));

#[esp_hal::handler]
fn swint0_handler() {
    println!("SW interrupt0 handled");

    // Clear the interrupt request.
    critical_section::with(|cs| {
        if let Some(swint) = SWINT0.borrow_ref(cs).as_ref() {
            swint.reset();
        }
    });
}

Structs

SoftwareInterrupt

A software interrupt can be triggered by software.

Traits

Instance

A software interrupt instance.