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Joakim Tufvegren 0ae20e7457
Make solo half of split keyboards (more) usable. (#13523) 
* Make solo half of split keyboards (more) usable.

Using only one half of a split keyboard (that's using the split_common
framework to communicate) is not a great experience, since several read
timeouts per scan cycle cause an unusably slow scan rate.

This change blocks all split communication attempts for 500 ms
(configurable) after an error occurs, causing the scan rate to become at
least _more_ usable, but might need some tweaking to work fully on most
keyboards. One read timeout still needs to occur after the 500 ms has
passed, and if that timeout isn't low enough, some scan cycles may still
be too slow.

* Fix lint complaint.

* Require 25 consecutive comm errors to see comms as disconnected.

The number of max errors can be overridden by defining
`SPLIT_MAX_CONNECTION_ERRORS`.

* Add comments to new defines, and ability to disable disconnection check.

Also increase `SPLIT_MAX_CONNECTION_ERRORS` to 40, since it's divisible
by most relevant numbers for the description.

* Make lint happy ...again

* Only update `connection_check_timer` when needed.

* Add new defines to split keyboard documentation.

* Move connection timeout logic to transport.c, add `is_transport_connected`.

* Use split_common disconnection logic in matrix.c.

Instead of doing more or less the same thing twice.

* Move disconnection logic to `transport_master`.

Is a cleaner implementation, and causes the scan rate while disconnected
to increase instead of decrease.

* Lint fixes.

* Lower default `SERIAL_USART_TIMEOUT` to 20 ms.

The read timeout must be low enough to not cause exessively long scan
cycles when using a solo split half. 10 ms was determined from testing
to work fine even with the slowest defined baudrate of 19200 (5 ms was
too low for that case), so 20 ms should be fine for most cases.

* Remove `SERIAL_USART_TIMEOUT` from ergodox_infinity/config.h

Was somewhat mistakenly included in an earlier PR.

* Fix building with `USE_I2C`.

* Reduce built firmware size.

Not really sure why this works, the idea was taken from tzarc's work on
split disconnection.

* Tweak and improve opt-out for split disconnection logic.

There are now two ways to opt out from this feature:
* Set `SPLIT_MAX_CONNECTION_ERRORS` to 0. This will completely disable
  the connection status checks (also affects the slave matrix reset logic in
  matrix.c, though).
* Set `SPLIT_CONNECTION_CHECK_TIMEOUT` to 0. This will only disable the
  communication throttling while disconnected. Will make the firmware
  smaller.

* Make split disconnection logic work with custom transports.

Includes a fallback implementation for keyboards using a custom
split_util.c but not a custom matrix.c (currently no such keyboard seems
to be merged, though).

* Remove unnecessary include of timer.h

Co-authored-by: Joel Challis <git@zvecr.com>

Co-authored-by: Joel Challis <git@zvecr.com>
 		2021-08-22 10:51:17 +10:00
..
ChangeLog Update 20210529.md (#13170) 2021-08-13 06:14:57 +10:00
de Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
es Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
fr-fr Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
gitbook/images RGB improvements (#1684) 2017-09-06 14:49:19 -07:00
he-il [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
ja Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
ko-kr [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
pt-br [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
ru-ru [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
zh-cn Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
.nojekyll Use docsfy to replace gitbook 2018-05-07 22:46:26 -07:00
CNAME Create CNAME 2018-05-21 16:29:37 -04:00
README.md Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
_langs.md [Docs] add README translation in portuguese (#7016) 2019-12-10 10:19:12 -08:00
_summary.md Digitizer HID interface : absolute coordinates for mouse cursor (#12851) 2021-08-18 04:52:44 +10:00
adc_driver.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
api_development_environment.md Add API documentation 2020-03-05 16:00:10 -08:00
api_development_overview.md Add API documentation 2020-03-05 16:00:10 -08:00
api_docs.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
api_overview.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
arm_debugging.md [Docs] fix docs (#7642) 2019-12-21 11:00:22 +00:00
audio_driver.md Audio system overhaul (#11820) 2021-02-15 09:40:38 +11:00
breaking_changes.md Merge remote-tracking branch 'origin/master' into develop 2021-08-20 22:32:01 +00:00
breaking_changes_history.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
breaking_changes_instructions.md 2020 May 30 Breaking Changes Update (#9215) 2020-05-30 13:14:59 -07:00
chibios_upgrade_instructions.md Update ChibiOS, ChibiOS-Contrib. (#13056) 2021-06-01 08:11:50 +10:00
cli.md Streamline the macos install process 2020-05-18 22:46:33 -07:00
cli_commands.md `--parallel` improvements (#13800) 2021-08-18 08:46:59 +10:00
cli_configuration.md Fix capitalisation of "GitHub" (#9184) 2020-05-25 19:43:14 -07:00
cli_development.md CLI/Docs: Fix the format commands' name (#13668) 2021-07-23 21:41:33 +01:00
cli_tab_complete.md Add support for tab completion (#12411) 2021-04-14 19:00:22 -07:00
coding_conventions_c.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
coding_conventions_python.md Move everything to Python 3.6 (#8835) 2020-04-18 22:00:56 +02:00
compatible_microcontrollers.md Add support for STM32F407x MCUs. (#13718) 2021-08-09 06:52:13 +10:00
config_options.md Enable sync of OLED/ST7565 display on/off state on Splits (#13542) 2021-08-15 15:39:08 +10:00
configurator_architecture.md Architecture documentation for Configurator and API (#13935) 2021-08-10 07:47:53 -07:00
configurator_default_keymaps.md [Docs] add "Adding Default Keymaps to QMK Configurator" doc (#10049) 2020-10-18 03:50:32 +11:00
configurator_diagram.drawio Architecture documentation for Configurator and API (#13935) 2021-08-10 07:47:53 -07:00
configurator_diagram.svg Architecture documentation for Configurator and API (#13935) 2021-08-10 07:47:53 -07:00
configurator_step_by_step.md Fix capitalisation of "GitHub" (#9184) 2020-05-25 19:43:14 -07:00
configurator_troubleshooting.md Polish Configurator section 2020-03-05 16:00:10 -08:00
contributing.md [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
custom_matrix.md Add docs for 'CUSTOM_MATRIX = lite' (#7906) 2020-01-18 12:56:33 +11:00
custom_quantum_functions.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
data_driven_config.md Create a system to map between info.json and config.h/rules.mk (#11548) 2021-01-31 12:46:00 -08:00
documentation_best_practices.md [Docs] fix file path (#9540) 2020-06-25 15:58:36 +10:00
documentation_templates.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
driver_installation_zadig.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
easy_maker.md [Keyboard] ez_maker/directpins for easy one-offs in qmk_configurator (#13321) 2021-08-14 08:42:59 -07:00
eeprom_driver.md eeprom_i2c driver: added EXTERNAL_EEPROM_WP_PIN configuration option. (#12617) 2021-06-21 19:34:28 -07:00
faq_build.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
faq_debug.md Allow output of logging when running unit tests (#13556) 2021-07-25 17:18:09 +01:00
faq_general.md Fix typos and reword some sentences in FAQs (#11546) 2021-01-23 13:41:29 -08:00
faq_keymap.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
faq_misc.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
feature_advanced_keycodes.md Additional documentation for GUI mod combo (#13266) 2021-06-22 12:41:57 +10:00
feature_audio.md Fixup Audio startup and add to documents (#13606) 2021-08-15 21:51:50 +01:00
feature_auto_shift.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
feature_backlight.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
feature_bluetooth.md Add description in Bluetooth docs for requiring NKRO to be disabled (#10359) 2020-09-22 22:31:37 +10:00
feature_bootmagic.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
feature_combo.md Process combos earlier & overlapping combos (#8591) 2021-08-06 09:44:57 +10:00
feature_command.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
feature_debounce_type.md Remove backwards compatibility of debounce names (#13877) 2021-08-09 19:46:18 +01:00
feature_digitizer.md Digitizer HID interface : absolute coordinates for mouse cursor (#12851) 2021-08-18 04:52:44 +10:00
feature_dip_switch.md Added right vs left specific pin assignments for dip switch (#13074) 2021-08-19 18:39:15 +01:00
feature_dynamic_macros.md Fix typo in docs/feature_dynamic_macros (#10085) 2020-08-19 22:59:59 +01:00
feature_encoders.md Allow for removal of hysteresis on 4x encoders (#13698) 2021-08-18 09:40:00 +10:00
feature_grave_esc.md Document an annoyance with Grave Escape and macOS Terminal (#5483) 2019-03-24 17:11:26 -07:00
feature_haptic_feedback.md Add Per Key exclusions for Haptic Feedback (#12386) 2021-06-19 19:28:54 -07:00
feature_hd44780.md fixed typo for clear lcd screen function in hd44780 docs (#9086) 2020-05-13 19:06:41 +01:00
feature_joystick.md 2020 November 28 Breaking Changes Update (#11053) 2020-11-28 12:02:18 -08:00
feature_key_lock.md Add explicit id tags to externally linked headers 2020-03-05 16:00:10 -08:00
feature_key_overrides.md [Feature] Key Overrides (#11422) 2021-07-13 10:13:51 -07:00
feature_layers.md Improve upon the 'Caveats' section of the Layers and Mod-Tap documentation (#12306) 2021-03-25 22:44:28 +11:00
feature_layouts.md Add a mechanism for force building a particular community layout (#5027) 2019-02-14 20:14:26 -08:00
feature_leader_key.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
feature_led_indicators.md [Docs] Added note about no split support (#12512) 2021-07-20 10:11:49 -07:00
feature_led_matrix.md Rgb matrix/enable modes explicitly (#13758) 2021-08-18 04:19:00 +10:00
feature_macros.md [Docs] New section to modifier docs: Checking Modifier State (#10550) 2021-02-28 16:42:17 +11:00
feature_midi.md [Docs] added basic midi documention of common features (#13113) 2021-06-06 23:53:20 -07:00
feature_mouse_keys.md Add support for 8 buttons to mouse report (#10807) 2021-01-28 04:38:34 +11:00
feature_oled_driver.md Add oled_invert (#13172) 2021-06-19 01:08:22 +10:00
feature_pointing_device.md Merge remote-tracking branch 'origin/master' into develop 2021-02-04 01:25:39 +00:00
feature_ps2_mouse.md [Feature] Swap buttons on PS2 Mouse/Trackball (#9205) 2021-08-06 09:09:58 +10:00
feature_rawhid.md Updated Raw HID docs to clarify packet/report length (#11211) 2020-12-23 08:04:55 +11:00
feature_rgb_matrix.md Rgb matrix/enable modes explicitly (#13758) 2021-08-18 04:19:00 +10:00
feature_rgblight.md Retain brightness with lighting layers (#13025) 2021-07-21 23:46:12 -07:00
feature_sequencer.md Ensure single newline at EOF for core files (#11310) 2020-12-28 04:36:32 +11:00
feature_space_cadet.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
feature_split_keyboard.md Make solo half of split keyboards (more) usable. (#13523) 2021-08-22 10:51:17 +10:00
feature_st7565.md ST7565 invert (#13237) 2021-06-19 18:51:35 +10:00
feature_stenography.md Steno combinedkeys (#12538) 2021-08-18 04:48:00 +10:00
feature_swap_hands.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
feature_tap_dance.md matrix_scan_x -> x_task (#13748) 2021-07-28 12:01:23 +01:00
feature_terminal.md Remove build option firmware size impacts (#6947) 2019-10-18 18:14:49 -07:00
feature_thermal_printer.md Format keycode tables 2017-12-09 10:46:11 -05:00
feature_unicode.md 2021 May 29 Breaking Changes Update (#13034) 2021-05-29 14:38:50 -07:00
feature_userspace.md Normalise include statements in core code (#11153) 2020-12-11 13:45:24 +11:00
feature_velocikey.md Velocikey: Match RGB animation speed to typing speed (#3754) 2019-02-21 07:22:46 -08:00
feature_wpm.md Update feature_wpm.md (#13936) 2021-08-10 10:14:14 +01:00
flashing.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
flashing_bootloadhid.md Install bootloadHid as part of qmk_install (#7463) 2019-11-28 15:29:11 +00:00
fuse.txt Ensure single newline at EOF for core files (#11310) 2020-12-28 04:36:32 +11:00
getting_started_docker.md Add support for using podman to util/docker_build.sh (#10819) 2021-02-28 15:59:42 +11:00
getting_started_github.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
getting_started_introduction.md [Docs] update git command and directory name of documents (#7619) 2019-12-12 20:59:00 -08:00
getting_started_make_guide.md Documentation update (#12484) 2021-04-11 12:49:12 +02:00
getting_started_vagrant.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
hand_wire.md [Docs] Added information on soldering diodes in parallel (#13117) 2021-07-29 22:56:27 -07:00
hardware_avr.md Port new_keyboard.sh to CLI (#13706) 2021-07-30 21:57:40 +01:00
hardware_drivers.md Add customisable EEPROM driver selection (#7274) 2020-01-24 12:45:58 +11:00
hardware_keyboard_guidelines.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
how_a_matrix_works.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
how_keyboards_work.md Update URL for `60-keyboard.hwdb` (#7185) 2019-10-28 02:41:22 +00:00
i2c_driver.md Rework I2C driver docs (#11658) 2021-02-08 07:45:59 +11:00
index.html Simplify the visual flow of the getting started page (#11316) 2020-12-27 16:56:10 +00:00
internals_defines.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_gpio_control.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
internals_input_callback_reg.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_midi_device.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_midi_device_setup_process.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_midi_util.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_send_functions.md rename api docs to internals 2018-03-26 11:43:37 -07:00
internals_sysex_tools.md rename api docs to internals 2018-03-26 11:43:37 -07:00
isp_flashing_guide.md [Docs] Update isp_flashing_guide.md (#11777) 2021-02-07 10:48:34 -08:00
keycodes.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
keycodes_basic.md Update keycode docs (#11343) 2020-12-30 07:51:36 +11:00
keycodes_magic.md Add a toggle key for GUI On/Off in Magic feature (#13830) 2021-08-18 08:47:50 +10:00
keycodes_us_ansi_shifted.md Backslash-escape pipe character in keycode lists (#7157) 2019-10-26 06:10:03 +01:00
keymap.md [Docs] Clarify layer transparency keymap.md (#9081) 2020-05-16 00:35:19 -07:00
mod_tap.md Add Mac centric Shift and Alt + GUI Macros (#13107) 2021-06-19 19:14:19 -07:00
newbs.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
newbs_building_firmware.md Add explicit id tags to externally linked headers 2020-03-05 16:00:10 -08:00
newbs_building_firmware_configurator.md Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
newbs_flashing.md A few small typo fixes in docs (#12524) 2021-04-11 12:50:45 +02:00
newbs_getting_started.md Update FreeBSD install method (#12815) 2021-05-07 19:22:05 +02:00
newbs_git_best_practices.md [Docs] Restructure of Git Best Practices doc (#7231) 2019-12-02 18:47:02 -08:00
newbs_git_resolving_merge_conflicts.md [Docs] Restructure of Git Best Practices doc (#7231) 2019-12-02 18:47:02 -08:00
newbs_git_resynchronize_a_branch.md [Docs] Fix minor differences in docs/newbs_git_resynchronize_a_branch.md (#7728) 2019-12-27 14:31:23 -08:00
newbs_git_using_your_master_branch.md Add explicit id tags to externally linked headers 2020-03-05 16:00:10 -08:00
newbs_learn_more_resources.md Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
newbs_testing_debugging.md Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
one_shot_keys.md fix: Fix typo in documentation for one shot keys. ON_TOGG -> OS_TOGG (#13754) 2021-07-28 12:00:55 +01:00
other_eclipse.md eclipse: recommend changing the default project make target (#12447) 2021-04-19 02:20:17 -07:00
other_vscode.md [Core] [Docs] Remove travis-ci references (#13916) 2021-08-20 23:31:26 +01:00
platformdev_chibios_earlyinit.md Ensure single newline at EOF for core files (#11310) 2020-12-28 04:36:32 +11:00
platformdev_selecting_arm_mcu.md Add documentation for selecting an Arm MCU (#9046) 2020-06-10 23:32:58 +01:00
power.txt Trim trailing whitespace 2017-12-09 10:46:11 -05:00
pr_checklist.md Explicitly state that VIA should not be enabled in the default keymap. (#13803) 2021-07-31 09:21:45 +10:00
proton_c_conversion.md Add board specific to Proton-C, with usual defaults turned on. (#10976) 2020-12-03 13:04:28 +11:00
qmk.css Some more tweaks to make everything look nice 2018-05-07 23:42:41 -07:00
qmk_custom_dark.css Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
qmk_custom_light.css Small tweaks to docs to make them more user friendly (#11518) 2021-01-20 18:46:01 +00:00
quantum_keycodes.md Add explicit id tags to externally linked headers 2020-03-05 16:00:10 -08:00
redirects.json Configuration system for CLI (#6708) 2019-09-22 13:25:33 -07:00
ref_functions.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
reference_configurator_support.md Remove references to info.json `width` and `height` in CLI (#13728) 2021-07-29 22:37:18 -07:00
reference_glossary.md [Docs] Use HTTPS for images and links where possible (#11695) 2021-01-30 22:00:56 +11:00
reference_info_json.md Remove references to info.json `width` and `height` in CLI (#13728) 2021-07-29 22:37:18 -07:00
reference_keymap_extras.md Rework keymap_extras docs (#13949) 2021-08-15 00:18:20 +10:00
serial_driver.md Make solo half of split keyboards (more) usable. (#13523) 2021-08-22 10:51:17 +10:00
spi_driver.md Merge remote-tracking branch 'upstream/master' into develop 2021-02-08 07:57:09 +11:00
support.md Fix capitalisation of "GitHub" (#9184) 2020-05-25 19:43:14 -07:00
sw.js Fix up info boxes. 2018-05-07 22:46:26 -07:00
syllabus.md Remove Full Bootmagic (#13846) 2021-08-06 23:59:56 -07:00
tap_hold.md Add HOLD_ON_OTHER_KEY_PRESS option for dual-role keys (#9404) 2021-08-07 09:16:26 +10:00
translating.md Add yet another dictionary for the QMK Firmware docs sidebar heading (#7504) 2019-11-28 22:14:04 +00:00
uart_driver.md UART driver refactor (#11637) 2021-01-27 17:42:49 +11:00
understanding_qmk.md [Feature] Key Overrides (#11422) 2021-07-13 10:13:51 -07:00
unit_testing.md Allow output of logging when running unit tests (#13556) 2021-07-25 17:18:09 +01:00
usb_nkro.txt convert docs to lowercase and underscores 2017-06-10 14:58:55 -04:00
ws2812_driver.md Fix up WS2812 SPI driver on F072. (#13022) 2021-06-03 09:48:16 +10:00

README.md

Quantum Mechanical Keyboard Firmware

What is QMK Firmware?

QMK (Quantum Mechanical Keyboard) is an open source community centered around developing computer input devices. The community encompasses all sorts of input devices, such as keyboards, mice, and MIDI devices. A core group of collaborators maintains QMK Firmware, QMK Configurator, QMK Toolbox, qmk.fm, and this documentation with the help of community members like you.

Get Started

?> Basic QMK Configurator
User friendly graphical interfaces, no programming knowledge required.

?> Advanced Use The Source
More powerful, but harder to use.

Make It Yours

QMK has lots of features to explore, and a good deal of reference documentation to dig through. Most features are taken advantage of by modifying your keymap, and changing the keycodes.

Need help?

Check out the support page to see how you can get help using QMK.

Give Back

There are a lot of ways you can contribute to the QMK Community. The easiest way to get started is to use it and spread the word to your friends.