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-rw-r--r--src/cyccnt.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cyccnt.rs b/src/cyccnt.rs
index 338bbbe..6bc2ef0 100644
--- a/src/cyccnt.rs
+++ b/src/cyccnt.rs
@@ -30,6 +30,10 @@ pub struct Instant {
impl Instant {
/// Returns an instant corresponding to "now"
+ ///
+ /// *HEADS UP* this function can, and will, return nonsensical values if called within `init`.
+ /// Only use it in `idle` and tasks. In `init`, use the `init::Context.start` field, or the
+ /// `CYCCNT::zero` function, instead of this function
pub fn now() -> Self {
Instant {
inner: DWT::get_cycle_count() as i32,