Remove more commented out MCUs

[qmk_firmware.git] / docs / feature_debounce_type.md

diff --git a/docs/feature_debounce_type.md b/docs/feature_debounce_type.md
index 82b3d7de1237cce25b48e9aeebbb80df2aa8b17f..38eca3f37c8ccae6e8854565d751c443b946854d 100644 (file)
--- a/docs/feature_debounce_type.md
+++ b/docs/feature_debounce_type.md
@@ -2,45 +2,41 @@
 
 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
 
 ```
+DEBOUNCE_DIR:= $(QUANTUM_DIR)/debounce
 DEBOUNCE_TYPE?= sym_g
-VALID_DEBOUNCE_TYPES := sym_g eager_pk custom
-ifeq ($(filter $(DEBOUNCE_TYPE),$(VALID_DEBOUNCE_TYPES)),)
-    $(error DEBOUNCE_TYPE="$(DEBOUNCE_TYPE)" is not a valid debounce algorithm)
-endif
-ifeq ($(strip $(DEBOUNCE_TYPE)), sym_g)
-    QUANTUM_SRC += $(DEBOUNCE_DIR)/debounce_sym_g.c
-else ifeq ($(strip $(DEBOUNCE_TYPE)), eager_pk)
-    QUANTUM_SRC += $(DEBOUNCE_DIR)/debounce_eager_pk.c
+ifneq ($(strip $(DEBOUNCE_TYPE)), custom)
+    QUANTUM_SRC += $(DEBOUNCE_DIR)/$(strip $(DEBOUNCE_TYPE)).c
 endif
 ```
 
 # Debounce selection
 
-| DEBOUNCE_ALGO    | Description                                                 | What to do                    |
-| -------------    | ---------------------------------------------------         | ----------------------------- |
-| Not defined      | You are using the included matrix.c and debounce.c          | Nothing. Debounce_sym_g will be compiled, and used if necessary |
-| custom           | Use your own debounce.c                                     | ```SRC += debounce.c``` add your own debounce.c and implement necessary functions |
-| sym_g / eager_pk | You are using the included matrix.c and debounce.c          | Use an alternative debounce algorithm |
+| DEBOUNCE_TYPE    | Description                                          | What else is needed           |
+| -------------    | ---------------------------------------------------  | ----------------------------- |
+| Not defined      | Use the default algorithm, currently sym_g           | Nothing                       |
+| custom           | Use your own debounce.c                              | ```SRC += debounce.c``` add your own debounce.c and implement necessary functions |
+| anything_else    | Use another algorithm from quantum/debounce/*        | Nothing                       |
 
-**Regarding split keyboards**: 
+**Regarding split keyboards**:
 The debounce code is compatible with split keyboards.
 
 # Use your own debouncing code
 * Set ```DEBOUNCE_TYPE = custom ```.
 * Add ```SRC += debounce.c```
-* Add your own ```debounce.c```. Look at included ```debounce_sym_g.c```s for sample implementations.
+* Add your own ```debounce.c```. Look at current implementations in ```quantum/debounce``` for examples.
 * Debouncing occurs after every raw matrix scan.
 * Use num_rows rather than MATRIX_ROWS, so that split keyboards are supported correctly.
 
 # 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.
+* eager_pr - debouncing per row. On any state change, response is immediate, followed by locking the row ```DEBOUNCE_DELAY``` milliseconds of no further input for that row. 
+For use in keyboards where refreshing ```NUM_KEYS``` 8-bit counters is computationally expensive / low scan rate, and fingers usually only hit one row at a time. This could be
+appropriate for the ErgoDox models; the matrix is rotated 90°, and hence its "rows" are really columns, and each finger only hits a single "row" at a time in normal use.
+* eager_pk - debouncing per key. On any state change, response is immediate, followed by ```DEBOUNCE_DELAY``` milliseconds of no further input for that key
+* 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.