From 5151c839ed2f0b3d193c686e71888b9d9759c1a7 Mon Sep 17 00:00:00 2001 From: Tobias Arndt Date: Sat, 30 Mar 2024 18:24:11 -0700 Subject: [PATCH] fix(docs): Fix and note GPIO flags for charlieplex config --- docs/docs/config/kscan.md | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/docs/docs/config/kscan.md b/docs/docs/config/kscan.md index b49529d9..84a42e05 100644 --- a/docs/docs/config/kscan.md +++ b/docs/docs/config/kscan.md @@ -182,6 +182,8 @@ Define the transform with a [matrix transform](#matrix-transform). The row is al For example, in `RC(5,0)` power flows from the 6th pin in `gpios` to the 1st pin in `gpios`. Exclude all positions where the row and column are the same as these pairs will never be triggered, since no pin can be both input and output at the same time. +The [GPIO flags](https://docs.zephyrproject.org/3.5.0/hardware/peripherals/gpio.html#api-reference) for the elements in `gpios` should be `GPIO_ACTIVE_HIGH`, and interrupt pins set in `interrupt-gpios` should have the flags `(GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)`. + ## Composite Driver Keyboard scan driver which combines multiple other keyboard scan drivers. @@ -454,11 +456,11 @@ Note that the entire addressable space does not need to be mapped. interrupt-gpios = <&pro_micro 21 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) >; gpios - = <&pro_micro 16 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) > - , <&pro_micro 17 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) > - , <&pro_micro 18 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) > - , <&pro_micro 19 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) > - , <&pro_micro 20 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN) > + = <&pro_micro 16 GPIO_ACTIVE_HIGH> + , <&pro_micro 17 GPIO_ACTIVE_HIGH> + , <&pro_micro 18 GPIO_ACTIVE_HIGH> + , <&pro_micro 19 GPIO_ACTIVE_HIGH> + , <&pro_micro 20 GPIO_ACTIVE_HIGH> ; // addressable space is 5x5, (minus paired values) };