|
|
@ -0,0 +1,51 @@ |
|
|
|
# Debounce algorithm |
|
|
|
|
|
|
|
QMK supports multiple debounce algorithms through its debounce API. |
|
|
|
|
|
|
|
The underlying debounce algorithm is determined by which matrix.c file you are using. |
|
|
|
|
|
|
|
The logic for which debounce method called is below. It checks various defines that you have set in rules.mk |
|
|
|
|
|
|
|
``` |
|
|
|
ifeq ($(strip $(SPLIT_KEYBOARD)), yes) |
|
|
|
# Do nothing, debouncing is inside matrix.c inside split_common |
|
|
|
else ifeq ($(strip $(DEBOUNCE_ALGO)), manual) |
|
|
|
# Do nothing. do your debouncing in matrix.c |
|
|
|
else ifeq ($(strip $(DEBOUNCE_ALGO)), sym_g) |
|
|
|
TMK_COMMON_SRC += $(DEBOUNCE)/debounce_sym_g.c |
|
|
|
else ifeq ($(strip $(DEBOUNCE_ALGO)), eager_pk) |
|
|
|
TMK_COMMON_SRC += $(DEBOUNCE)/debounce_eager_pk.c |
|
|
|
else ifeq ($(strip $(CUSTOM_MATRIX)), yes) |
|
|
|
# Do nothing. Custom matrix code. |
|
|
|
else # default algorithm |
|
|
|
TMK_COMMON_SRC += $(DEBOUNCE)/debounce_sym_g.c |
|
|
|
endif |
|
|
|
``` |
|
|
|
# Debounce selection |
|
|
|
The following is for keyboards where ```SPLIT_KEYBOARD``` is not defined as ```YES``` |
|
|
|
| DEBOUNCE_ALGO | CUSTOM_MATRIX | Description | What to do | |
|
|
|
| ------------- | -------------| --------------------------------------------------- | ----------------------------- | |
|
|
|
| Not defined | Not defined | You are using the included matrix.c and debounce.c | Nothing. Debounce_sym_g used. | |
|
|
|
| manual | Not defined | You are using the included matrix.c but your own debounce.c | ```SRC += debounce.c``` add your own debounce.c and implement necessary functions | |
|
|
|
| sym_g / eager_pk | Not defined | You are using the included matrix.c and debounce.c | Nothing. Chosen debounce method used. | |
|
|
|
| Not defined | YES | You have your own matrix.c, and your own debounce | Write the fully debounced matrix into matrix.c's matrix | |
|
|
|
| manual | YES | Same as above | same as above | |
|
|
|
| sym_g/ eager_pk | YES | You are using your own matrix.c, but included debounce | Write the raw matrix values into matrix.c's matrix | |
|
|
|
|
|
|
|
Note: |
|
|
|
If ```SPLIT_KEYBOARD = YES``` is defined, the algorithm inside split_common will be used. |
|
|
|
A future pull request will fix this to use the debounce.c code. |
|
|
|
|
|
|
|
# Use your own debouncing code |
|
|
|
* Set ```DEBOUNCE_ALGO = manual```. |
|
|
|
* Add ```SRC += debounce.c``` |
|
|
|
* Add your own ```debounce.c```. Look at included debounce.c's for sample implementations. |
|
|
|
* Debouncing occurs after every raw matrix scan. |
|
|
|
|
|
|
|
# Changing between included debouncing methods |
|
|
|
You can either use your own code, by including your own debounce.c, or switch to another included one. |
|
|
|
Included debounce methods are: |
|
|
|
* debounce_eager_pk - debouncing per key. On any state change, response is immediate, followed by ```DEBOUNCE_DELAY``` millseconds of no further input for that key |
|
|
|
* debounce_sym_g - debouncing per keyboard. On any state change, a global timer is set. When ```DEBOUNCE_DELAY``` milliseconds of no changes has occured, all input changes are pushed. |
|
|
|
|
|
|
|
|