diff options
| author |  bors[bot] <26634292+bors[bot]@users.noreply.github.com>
| 2020-05-25 00:25:56 +0000 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2020-05-25 00:25:56 +0000 |
| commit | 3136e01e708413774d7be2868705e1782c910027 (patch) | |
| tree | 6283febb39959b153502e95f5dbba327875c52b9 /src/peripheral/mod.rs | |
| parent | fc19f3e1588e7486716667dbd0db37c6dc41d0ed (diff) | |
| parent | 97141b951b044bd4a06478454a179d633f28d148 (diff) | |
| download | cortex-m-3136e01e708413774d7be2868705e1782c910027.tar.gz cortex-m-3136e01e708413774d7be2868705e1782c910027.tar.zst cortex-m-3136e01e708413774d7be2868705e1782c910027.zip | |
Merge #219
219: ITM: don't test reserved bits in is_fifo_ready r=adamgreig a=cbiffle
On ARMv7-M, bits 31:1 of the value read from STIMx are reserved, so
comparing them against zero is a bad idea.
On ARMv8-M, bit 1 has been repurposed to indicate DISABLED. This means
that the is_fifo_ready impl hangs forever when ITM is disabled on a
Cortex-M33 (for example).
Changed to test only the FIFOREADY bit.
@bcantrill
Co-authored-by: Cliff L. Biffle <cliff@oxide.computer>
Diffstat (limited to 'src/peripheral/mod.rs')
0 files changed, 0 insertions, 0 deletions