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| -rw-r--r-- | Keymap-examples.md | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/Keymap-examples.md b/Keymap-examples.md index 27c8a07928..0940119317 100644 --- a/Keymap-examples.md +++ b/Keymap-examples.md @@ -13,4 +13,25 @@ Keymap code on Alps64 https://github.com/thisisshi/tmk_keyboard/blob/15fe63e8d181a8a95988dcc71929f0024df55caa/keyboard/alps64/keymap_pure.c and guide. -https://github.com/thisisshi/tmk_keyboard/blob/77ac0805ade565fb23657e3644c920ada71edccf/keyboard/alps64/Guide.md
\ No newline at end of file +https://github.com/thisisshi/tmk_keyboard/blob/77ac0805ade565fb23657e3644c920ada71edccf/keyboard/alps64/Guide.md + +## Prevent stuck modifiers + +Consider the following scenario: + +1. Layer 0 has a key defined as Shift. +2. The same key is defined on layer 1 as the letter A. +3. User presses Shift. +4. User switches to layer 1 for whatever reason. +5. User releases Shift, or rather the letter A. +6. User switches back to layer 0. + +Shift was actually never released and is still considered pressed. + +If such situation bothers you add this to your `config.h`: + + #define PREVENT_STUCK_MODIFIERS + +This option uses 5 bytes of memory per every 8 keys on the keyboard +rounded up (5 bits per key). For example on Planck (48 keys) it uses +(48/8)\*5 = 30 bytes. |