SAM TC: Implement capture mode, configurable counter width#200
Open
msarehn wants to merge 2 commits intorenode:masterfrom
Open
SAM TC: Implement capture mode, configurable counter width#200msarehn wants to merge 2 commits intorenode:masterfrom
msarehn wants to merge 2 commits intorenode:masterfrom
Conversation
In capture mode (WAVE=0), the timer now runs as a free-running counter with overflow interrupts, matching real hardware behavior. Previously, capture mode logged "Unimplemented" and left the timer unconfigured. Also enables RC compare (cTimer) in capture mode. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The SAM4E has 32-bit TC counters while the SAM4S has 16-bit. Add a counterWidth constructor parameter (default 16) to support both variants. With 16-bit counters, firmware using 32-bit overflow counting saw wildly incorrect time values. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
msarehn
force-pushed
the
upstream/sam4e-tc-fixes
branch
from
6809274 to
31f0c51
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Capture mode
In capture mode (WAVE=0), the timer now runs as a free-running
counter with overflow interrupts, matching real hardware behavior.
Previously, capture mode logged "Unimplemented" and left the timer
unconfigured. Also enables RC compare (cTimer) in capture mode.
Counter width
The SAM4E has 32-bit TC counters while the SAM4S has 16-bit.
Add a counterWidth constructor parameter (default 16) to support
both variants. With 16-bit counters, firmware using 32-bit overflow
counting saw wildly incorrect time values.