17e7762de7
* Implemented Eager Per Row debouncing algorithm. Good for when fingers can only press one row at a time (e.g. when keyboard is wired so that "rows" are vertical) * Added documentation for eager_pr * Ported ergodox_ez to eager_pr debouncing. * Removed check for changes in matrix_scan. * Added further clarification in docs. * Accidental merge with ergodox_ez * Small cleanup in eager_pr * Forgot to debounce_init - this would probably cause seg-faults.
28 lines
1 KiB
Markdown
28 lines
1 KiB
Markdown
Debounce algorithms belong in this folder.
|
|
Here are a few ideas
|
|
|
|
1) Global vs Per-Key vs Per-Row
|
|
* Global - one timer for all keys. Any key change state affects global timer
|
|
* Per key - one timer per key
|
|
* Per row - one timer per row
|
|
|
|
2) Eager vs symmetric vs asymmetric
|
|
* Eager - any key change is reported immediately. All further inputs for DEBOUNCE ms are ignored.
|
|
* Symmetric - wait for no changes for DEBOUNCE ms before reporting change
|
|
* Asymmetric - wait for different times depending on key-down/key-up. E.g. Eager key-down, DEBOUNCE ms key up.
|
|
|
|
3) Timestamp vs cycles
|
|
* old old old code waits n cycles, decreasing count by one each matrix_scan
|
|
* newer code stores the millisecond the change occurred, and does subraction to figure out time elapsed.
|
|
* Timestamps are superior, i don't think cycles will ever be used again once upgraded.
|
|
|
|
The default algorithm is symmetric and global.
|
|
Here are a few that could be implemented:
|
|
|
|
sym_g.c
|
|
sym_pk.c
|
|
sym_pr.c
|
|
sym_pr_cycles.c
|
|
eager_g.c
|
|
eager_pk.c
|
|
eager_pr.c //could be used in ergo-dox!
|