take_exception!() { /* proc-macro */ }
Expand description
Return an instance of an unnameable struct that implements ExceptionRegistration
, which
is bound to the exception specified by exception
.
exception
may be any of the variants of Exception
(from cortex_m
), except
for Exception::HardFault
The returned struct has the following features:
- Calling
register
more than once for the sameException
panics.
§Usage
ⓘ
use cortex_m_interrupt::take_exception;
// The value returned by `take_exception` will
// always `impl cortex_m_interrupt::ExceptionRegistration`.
let registration = take_exception!(exception);
// For example:
let registration = cortex_m_interrupt::take_exception!(SysTick);