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Simon Arlott b829a1d264
Avoid 8-bit timer overflows in debounce algorithms (#12240)
* Add fast_timer_t that is 16-bit or 32-bit based on architecture

A 16-bit timer will overflow sooner but be faster to compare on AVR.

* Avoid 8-bit timer overflows in debounce algorithms

Count down remaining elapsed time instead of trying to do 8-bit timer
comparisons.

Add a "none" implementation that is automatically used if DEBOUNCE is
0 otherwise it will break the _pk/_pr count down.

* Avoid unnecessary polling of the entire matrix in sym_eager_pk

The matrix only needs to be updated when a debounce timer expires.

* Avoid unnecessary polling of the entire matrix in sym_eager_pr

The matrix only needs to be updated when a debounce timer expires.

The use of the "needed_update" variable is trying to do what
"matrix_need_update" was added to fix but didn't work because it only
applied when all keys finished debouncing.

* Fix sym_defer_g timing inconsistency compared to other debounce algorithms

DEBOUNCE=5 should process the key after 5ms, not 6ms

* Add debounce tests
2021-06-09 17:23:21 +10:00
.github 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
.vscode
api_data
bin 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
data 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
docs Use single memcmp to determine if matrix changed. (#13064) 2021-06-09 17:19:42 +10:00
drivers spi_master Kinetis support (#13098) 2021-06-08 19:54:33 +10:00
keyboards Use single memcmp to determine if matrix changed. (#13064) 2021-06-09 17:19:42 +10:00
layouts Add default ortho_1x1 layout (#13118) 2021-06-07 20:46:22 +10:00
lib Merge remote-tracking branch 'origin/master' into develop 2021-06-03 15:53:38 +00:00
nix [nix] Use niv and poetry2nix to more easily manage dependencies (#11181) 2021-04-03 08:05:46 -07:00
platforms/chibios Set BOOTLOADER = stm32-dfu for all applicable STM32 boards (#12956) 2021-06-08 19:48:46 +10:00
quantum Avoid 8-bit timer overflows in debounce algorithms (#12240) 2021-06-09 17:23:21 +10:00
tests
tmk_core Avoid 8-bit timer overflows in debounce algorithms (#12240) 2021-06-09 17:23:21 +10:00
users Update noroadsleft userspace and keymaps (2021-06-02) (#13086) 2021-06-02 23:06:30 -07:00
util 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
.clang-format
.editorconfig
.gitattributes [nix] Use niv and poetry2nix to more easily manage dependencies (#11181) 2021-04-03 08:05:46 -07:00
.gitignore 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
.gitmodules
.travis.yml
book.json
bootloader.mk 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
build_full_test.mk
build_json.mk 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
build_keyboard.mk 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
build_layout.mk
build_test.mk Avoid 8-bit timer overflows in debounce algorithms (#12240) 2021-06-09 17:23:21 +10:00
CODE_OF_CONDUCT.md
common.mk
common_features.mk 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
disable_features.mk Add a <FEATURE>_SUPPORTED flag (#9058) 2021-01-30 13:08:58 -08:00
Dockerfile
Doxyfile
doxygen-todo
LICENSE
license_GPLv2.md
license_GPLv3.md
license_Modified_BSD.md
Makefile 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
message.mk 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
nose2.cfg
readme.md 2021 February 27 Breaking Changes Changelog (#11975) 2021-02-27 12:10:23 -08:00
requirements-dev.txt Move hid and pyusb to requirements.txt (#13134) 2021-06-07 16:30:55 -07:00
requirements.txt Update requirements.txt (#13135) 2021-06-08 00:37:58 +01:00
secrets.tar.enc
setup.cfg Use the schema to eliminate custom code (#11108) 2021-01-09 13:34:14 -08:00
shell.nix [nix] Use niv and poetry2nix to more easily manage dependencies (#11181) 2021-04-03 08:05:46 -07:00
show_options.mk add OLED_DRIVER_ENABLE into show_options.mk (#12121) 2021-03-05 20:26:26 +00:00
testlist.mk Avoid 8-bit timer overflows in debounce algorithms (#12240) 2021-06-09 17:23:21 +10:00
Vagrantfile

Quantum Mechanical Keyboard Firmware

Current Version Build Status Discord Docs Status GitHub contributors GitHub forks

This is a keyboard firmware based on the tmk_keyboard firmware with some useful features for Atmel AVR and ARM controllers, and more specifically, the OLKB product line, the ErgoDox EZ keyboard, and the Clueboard product line.

Documentation

The docs are powered by Docsify and hosted on GitHub. They are also viewable offline; see Previewing the Documentation for more details.

You can request changes by making a fork and opening a pull request, or by clicking the "Edit this page" link at the bottom of any page.

Supported Keyboards

The project also includes community support for lots of other keyboards.

Maintainers

QMK is developed and maintained by Jack Humbert of OLKB with contributions from the community, and of course, Hasu. The OLKB product firmwares are maintained by Jack Humbert, the Ergodox EZ by ZSA Technology Labs, the Clueboard by Zach White, and the Atreus by Phil Hagelberg.

Official Website

qmk.fm is the official website of QMK, where you can find links to this page, the documentation, and the keyboards supported by QMK.