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Add pre-requisites for enabling the cycle counter to docs #346

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Jul 25, 2021
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7 changes: 7 additions & 0 deletions src/peripheral/dwt.rs
Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,13 @@ pub struct Comparator {

impl DWT {
/// Enables the cycle counter
///
/// The global trace enable ([`DCB::enable_trace`]) should be set before
/// enabling the cycle counter, the processor may ignore writes to the
/// cycle counter enable if the global trace is disabled
/// (implementation defined behaviour).
///
/// [`DCB::enable_trace`]: crate::peripheral::DCB::enable_trace
#[cfg(not(armv6m))]
#[inline]
pub fn enable_cycle_counter(&mut self) {
Expand Down