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| author | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2020-09-22 17:20:48 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-09-22 17:20:48 +0000 |
| commit | 9a33457c82ddc5a7c1243dfc784d818e60e34023 (patch) | |
| tree | 091072e4b93d53486125ca6a447ec1ca7149495c /book/en/src/by-example/app.md | |
| parent | 7ebdc376839dbed9f47860bac44a806d28c1f39b (diff) | |
| parent | e487b235eb26b3f9254e21df15907039156670b3 (diff) | |
Merge #360
360: Improved loop example docs to highlight that one cannot have empty lo… r=AfoHT a=korken89
…ops in idle
Co-authored-by: Emil Fresk <emil.fresk@gmail.com>
Diffstat (limited to 'book/en/src/by-example/app.md')
| -rw-r--r-- | book/en/src/by-example/app.md | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/book/en/src/by-example/app.md b/book/en/src/by-example/app.md index e0f4f94..9a073ac 100644 --- a/book/en/src/by-example/app.md +++ b/book/en/src/by-example/app.md @@ -77,6 +77,9 @@ references that are safe to access. The example below shows that `idle` runs after `init`. +**Note:** The `loop {}` in idle cannot be empty as this will crash the microcontroller due to a bug +in LLVM which miss-optimizes empty loops to a `UDF` instruction in release mode. + ``` rust {{#include ../../../../examples/idle.rs}} ``` |