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authorQMK Bot <hello@qmk.fm>2021-03-02 05:29:53 +0000
committerQMK Bot <hello@qmk.fm>2021-03-02 05:29:53 +0000
commit27d2fb88ca8c2bc3564bd0915c8681be707813e6 (patch)
tree22aa60c26654722dcb84dfd07a0b89c6487298d9
parentde585e31090bc580856d99efb4282a37edce0b96 (diff)
parentd0108869ee1431182574184ba11f064916369139 (diff)
Merge remote-tracking branch 'origin/master' into develop
-rw-r--r--docs/feature_split_keyboard.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/feature_split_keyboard.md b/docs/feature_split_keyboard.md
index 90af3930f9..dc081ff3ae 100644
--- a/docs/feature_split_keyboard.md
+++ b/docs/feature_split_keyboard.md
@@ -109,6 +109,10 @@ Normally, when a diode is connected to an intersection, it is judged to be left.
#define SPLIT_HAND_MATRIX_GRID_LOW_IS_RIGHT
```
+Note that adding a diode at a previously unused intersection will effectively tell the firmware that there is a key held down at that point. You can instruct qmk to ignore that intersection by defining `MATRIX_MASKED` and then defining a `matrix_row_t matrix_mask[MATRIX_ROWS]` array in your keyboard config. Each bit of a single value (starting form the least-significant bit) is used to tell qmk whether or not to pay attention to key presses at that intersection.
+
+While `MATRIX_MASKED` isn't necessary to use `SPLIT_HAND_MATRIX_GRID` successfully, without it you may experience issues trying to suspend your computer with your keyboard attached as the matrix will always report at least one key-press.
+
#### Handedness by EEPROM
This method sets the keyboard's handedness by setting a flag in the persistent storage (`EEPROM`). This is checked when the controller first starts up, and determines what half the keyboard is, and how to orient the keyboard layout.