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| 1 | Debounce algorithms belong in this folder. | ||
| 2 | Here are a few ideas | ||
| 3 | |||
| 4 | 1) Global vs Per-Key vs Per-Row | ||
| 5 | * Global - one timer for all keys. Any key change state affects global timer | ||
| 6 | * Per key - one timer per key | ||
| 7 | * Per row - one timer per row | ||
| 8 | |||
| 9 | 2) Eager vs symmetric vs asymmetric | ||
| 10 | * Eager - any key change is reported immediately. All further inputs for DEBOUNCE ms are ignored. | ||
| 11 | * Symmetric - wait for no changes for DEBOUNCE ms before reporting change | ||
| 12 | * Asymmetric - wait for different times depending on key-down/key-up. E.g. Eager key-down, DEBOUNCE ms key up. | ||
| 13 | |||
| 14 | 3) Timestamp vs cycles | ||
| 15 | * old old old code waits n cycles, decreasing count by one each matrix_scan | ||
| 16 | * newer code stores the millisecond the change occurred, and does subraction to figure out time elapsed. | ||
| 17 | * Timestamps are superior, i don't think cycles will ever be used again once upgraded. | ||
| 18 | |||
| 19 | The default algorithm is symmetric and global. | ||
| 20 | Here are a few that could be implemented: | ||
| 21 | |||
| 22 | sym_g.c | ||
| 23 | sym_pk.c | ||
| 24 | sym_pr.c | ||
| 25 | sym_pr_cycles.c | ||
| 26 | eager_g.c | ||
| 27 | eager_pk.c | ||
| 28 | eager_pr.c //could be used in ergo-dox! | ||
