* Add Per Key functionality for AutoShift (#11536)
* LED Matrix: Reactive effect buffers & advanced indicators (#12588)
* [Keyboard] kint36: switch to sym_eager_pk debouncing (#12626)
* [Keyboard] kint2pp: reduce input latency by ≈10ms (#12625)
* LED Matrix: Split (#12633)
* [CI] Format code according to conventions (#12650)
* feat: infinite timeout for leader key (#6580)
* feat: implement leader_no_timeout logic
* docs(leader_key): infinite leader timeout docs
* Format code according to conventions (#12680)
* Update ADC driver for STM32F1xx, STM32F3xx, STM32F4xx (#12403)
* Fix default ADC_RESOLUTION for ADCv3 (and ADCv4)
Recent ChibiOS update removed ADC_CFGR1_RES_10BIT from the ADCv3 headers
(that macro should not have been there, because ADCv3 has CFGR instead of
CFGR1). Fix the default value for ADC_RESOLUTION to use ADC_CFGR_RES_10BITS
if it is defined (that name is used for ADCv3 and ADCv4).
* Update ADC docs to match the actually used resolution
ADC driver for ChibiOS actually uses the 10-bit resolution by default
(probably to match AVR); fix the documentation accordingly. Also add
both ADC_CFGR_RES_10BITS and ADC_CFGR1_RES_10BIT constants (these names
differ according to the ADC implementation in the particular MCU).
* Fix pinToMux() for B12 and B13 on STM32F3xx
Testing on STM32F303CCT6 revealed that the ADC mux values for B12 and
B13 pins were wrong.
* Add support for all possible analog pins on STM32F1xx
Added ADC mux values for pins A0...A7, B0, B1, C0...C5 on STM32F1xx
(they are the same at least for STM32F103x8 and larger F103 devices, and
also F102, F105, F107 families). Actually tested on STM32F103C8T6
(therefore pins C0...C5 were not tested).
Pins F6...F10, which are present on STM32F103x[C-G] in 144-pin packages,
cannot be supported at the moment, because those pins are connected only
to ADC3, but the ChibiOS ADC driver for STM32F1xx supports only ADC1.
* Add support for all possible analog pins on STM32F4xx
Added ADC mux values for pins A0...A7, B0, B1, C0...C5 and optionally
F3...F10 (if STM32_ADC_USE_ADC3 is enabled). These mux values are
apparently the same for all F4xx devices, except some smaller devices may
not have ADC3.
Actually tested on STM32F401CCU6, STM32F401CEU6, STM32F411CEU6 (using
various WeAct “Blackpill” boards); only pins A0...A7, B0, B1 were tested.
Pins F3...F10 are inside `#if STM32_ADC_USE_ADC3` because some devices
which don't have ADC3 also don't have the GPIOF port, therefore the code
which refers to Fx pins does not compile.
* Fix STM32F3xx ADC mux table in documentation
The ADC driver documentation had some errors in the mux table for STM32F3xx.
Fix this table to match the datasheet and the actual code (mux settings for
B12 and B13 were also tested on a real STM32F303CCT6 chip).
* Add STM32F1xx ADC pins to the documentation
* Add STM32F4xx ADC pins to the documentation
* Add initial support for tinyuf2 bootloader (when hosted on F411 blackpill) (#12600)
* Add support for jumping to tinyuf2 bootloader. Adds blackpill UF2 example.
* Update flashing.md
* Update chconf.h
* Update config.h
* Update halconf.h
* Update mcuconf.h
* eeprom driver: Refactor where eeprom driver initialisation (and EEPROM emulation initialisation) occurs to make it non-target-specific. (#12671)
* Add support for MCU = STM32F446 (#12619)
* Add support for MCU = STM32F446
* Update platforms/chibios/GENERIC_STM32_F446XE/configs/config.h
* Restore mcuconf.h to the one used by RT-STM32F446RE-NUCLEO64
* stm32f446: update mcuconf.h and board.h for 16MHz operation, with USB enabled, and other peripherals disabled.
* Format code according to conventions (#12682)
* Format code according to conventions (#12687)
* Add STM32L433 and L443 support (#12063)
* initial L433 commit
* change to XC
* fix L433
* disable all peripherals
* update system and peripheral clocks
* 433 change
* use its own board files
* revert its own board files
* l433 specific change
* fix stm32l432xx define
* remove duplicate #define
* fix bootloader jump
* move to L443xx and add i2c2, spi2, usart3 to mcuconf.h
* move to L443
* move to L443
* fix sdmmc in mcuconf.h
* include STM32L443
* add L443
* Include L443 in compatible microcontrollers
* Include L443 in compatible microcontrollers
* Update config bootloader jump description
* Update ChibiOS define reasoning
* Update quantum/mcu_selection.mk
* fix git conflict
* Updated Function96 with V2 files and removed chconf.h and halconf.h (#12613)
* Fix bad PR merge for #6580. (#12721)
* Change RGB/LED Matrix to use a simple define for USB suspend (#12697)
* [CI] Format code according to conventions (#12731)
* Fixing transport's led/rgb matrix suspend state logic (#12770)
* [CI] Format code according to conventions (#12772)
* Fix comment parsing (#12750)
* Added OLED fade out support (#12086)
* fix some references to bin/qmk that slipped in (#12832)
* Resolve a number of warnings in `qmk generate-api` (#12833)
* New command: qmk console (#12828)
* stash poc
* stash
* tidy up implementation
* Tidy up slightly for review
* Tidy up slightly for review
* Bodge environment to make tests pass
* Refactor away from asyncio due to windows issues
* Filter devices
* align vid/pid printing
* Add hidapi to the installers
* start preparing for multiple hid_listeners
* udev rules for hid_listen
* refactor to move closer to end state
* very basic implementation of the threaded model
* refactor how vid/pid/index are supplied and parsed
* windows improvements
* read the report directly when usage page isn't available
* add per-device colors, the choice to show names or numbers, and refactor
* add timestamps
* Add support for showing bootloaders
* tweak the color for bootloaders
* Align bootloader disconnect with connect color
* add support for showing all bootloaders
* fix the pyusb check
* tweaks
* fix exception
* hide a stack trace behind -v
* add --no-bootloaders option
* add documentation for qmk console
* Apply suggestions from code review
* pyformat
* clean up and flesh out KNOWN_BOOTLOADERS
* Remove pointless SERIAL_LINK_ENABLE rules (#12846)
* Make Swap Hands use PROGMEM (#12284)
This converts the array that the Swap Hands feature uses to use PROGMEM,
and to read from that array, as such. Since this array never changes at
runtime, there is no reason to keep it in memory. Especially for AVR
boards, as memory is a precious resource.
* Fix another bin/qmk reference (#12856)
* [Keymap] Turn OLED off on suspend in soundmonster keymap (#10419)
* Fixup build errors on `develop` branch. (#12723)
* LED Matrix: Effects! (#12651)
* Fix syntax error when compiling for ARM (#12866)
* Remove KEYMAP and LAYOUT_kc (#12160)
* alias KEYMAP to LAYOUT
* remove KEYMAP and LAYOUT_kc
* Add setup, clone, and env to the list of commands we allow even with broken modules (#12868)
* Rename `point_t` -> `led_point_t` (#12864)
* [Keyboard] updated a vendor name / fixed minor keymap issues (#12881)
* Add missing LED Matrix suspend code to suspend.c (#12878)
* LED Matrix: Documentation (#12685)
* Deprecate `send_unicode_hex_string()` (#12602)
* Fix spelling mistake regarding LED Matrix in split_common. (#12888)
* [Keymap] Fix QWERTY/DVORAK status output for kzar keymap (#12895)
* Use milc.subcommand.config instead of qmk.cli.config (#12915)
* Use milc.subcommand.config instead
* pyformat
* remove the config test
* Add function to allow repeated blinking of one layer (#12237)
* Implement function rgblight_blink_layer_repeat to allow repeated blinking of one layer at a time
* Update doc
* Rework rgblight blinking according to requested change
* optimize storage
* Fixup housekeeping from being invoked twice per loop. (#12933)
* matrix: wait for row signal to go HIGH for every row (#12945)
I noticed this discrepancy (last row of the matrix treated differently than the
others) when optimizing the input latency of my keyboard controller, see also
https://michael.stapelberg.ch/posts/2021-05-08-keyboard-input-latency-qmk-kinesis/
Before this commit, when tuning the delays I noticed ghost key presses when
pressing the F2 key, which is on the last row of the keyboard matrix: the
dead_grave key, which is on the first row of the keyboard matrix, would be
incorrectly detected as pressed.
After this commit, all keyboard matrix rows are interpreted correctly.
I suspect that my setup is more susceptible to this nuance than others because I
use GPIO_INPUT_PIN_DELAY=0 and hence don’t have another delay that might mask
the problem.
* ensure we do not conflict with existing keymap aliases (#12976)
* Add support for up to 4 IS31FL3733 drivers (#12342)
* Convert Encoder callbacks to be boolean functions (#12805)
* [Keyboard] Fix Terrazzo build failure (#12977)
* Do not hard set config in CPTC files (#11864)
* [Keyboard] Corne - Remove legacy revision support (#12226)
* [Keymap] Update to Drashna keymap and user code (based on develop) (#12936)
* Add Full-duplex serial driver for ARM boards (#9842)
* Document LED_MATRIX_FRAMEBUFFER_EFFECTS (#12987)
* Backlight: add defines for default level and breathing state (#12560)
* Add dire message about LUFA mass storage bootloader (#13014)
* [Keyboard] Remove redundant legacy and common headers for crkbd (#13023)
Was causing compiler errors on some systems.
* Fix keyboards/keymaps for boolean encoder callback changes (#12985)
* `backlight.c`: include `eeprom.h` (#13024)
* Add changelog for 2021-05-29 Breaking Changes merge (#12939)
* Add ChangeLog for 2021-05-29 Breaking Changes Merge: initial version
* Add recent develop changes
* Sort recent develop changes
* Remove sections for ChibiOS changes per tzarc
No ChibiOS changes this round.
* Add and sort recent develop changes
* add notes about keyboard moves/deletions
* import changelog for PR 12172
Documents the change to BOOTMAGIC_ENABLE.
* update section headings
* re-sort changelog
* add additional note regarding Bootmagic changes
* remove changelog timestamp
* update dates in main Breaking Changes docs
* fix broken section anchors in previous changelogs
* add link to backlight/eeprom patch to changelog
* highlight some more changes
* link PRs from section headers
* Restore standard readme
* run: qmk cformat --core-only
* Fix USER_PRINT on avr/atsam
* Update tmk_core/common/arm_atsam/_print.h
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
* Remove GCC check from debug
* Remove platform logic from common.mk
* Refactor platform logic within print.h
* restore debug.c format
* headers
* Rename function pointer type
* review comments
* Update tmk_core/common/printf.c
Co-authored-by: Nick Brassel <nick@tzarc.org>
* Format
Co-authored-by: Nick Brassel <nick@tzarc.org>
* resolve race condition between suspend and wake in LUFA
* avoid multiple calls to suspend_power_down() / suspend_wakeup_init()
* Remove duplicate suspend_power_down_kb() call
* pause on wakeup to wait for USB state to settle
* need the repeated suspend_power_down() (that's where the sleep is)
* more efficient implementation
* fine tune the pause after sending wakeup
* speculative chibios version of pause-after-wake
* make wakeup delay configurable, and adjust value
* better location for wakeup delay
* Port over some AVR backlight logic to SLEEP_LED
* Port over some AVR backlight logic to SLEEP_LED - add timer 3
* Port over some AVR backlight logic to SLEEP_LED - clang format
* Enable SLEEP_LED within vusb protocol
* Moved contents of rgblight_reconfig.h to rgblight_post_config.h.
In #3582, rgblight_reconfig.h had to be newly created. Now, the build system of qmk_firmware has a post_cofig feature, so that what was done in rgblight_reconfig.h can now be realized in rgblight_post_config.h.
**This commit does not change the build result.**
Testing script
```shell
# build on master
git checkout master
echo master > /tmp/master_md5.txt
# RGBLIGHT_ENABLE = no
make HELIX=verbose helix/rev2:default:clean
make HELIX=verbose helix/rev2:default
md5 helix_rev2_default.hex >> /tmp/master_md5.txt
# RGBLIGHT_ENABLE = yes, with animations
make HELIX=verbose helix/rev2/back:default:clean
make HELIX=verbose helix/rev2/back:default
md5 helix_rev2_back_default.hex >> /tmp/master_md5.txt
# RGBLIGHT_ENABLE = yes, without animations
make HELIX=verbose,no_ani helix/rev2/back:default:clean
make HELIX=verbose,no_ani helix/rev2/back:default
md5 helix_rev2_back_default.hex >> /tmp/master_md5.txt
# build on refactor_rgblight_reconfig.h
git checkout refactor_rgblight_reconfig.h
echo refactor_rgblight_reconfig.h > /tmp/branch_md5.txt
# RGBLIGHT_ENABLE = no
make HELIX=verbose helix/rev2:default:clean
make HELIX=verbose helix/rev2:default
md5 helix_rev2_default.hex >> /tmp/branch_md5.txt
# RGBLIGHT_ENABLE = yes, with animations
make HELIX=verbose helix/rev2/back:default:clean
make HELIX=verbose helix/rev2/back:default
md5 helix_rev2_back_default.hex >> /tmp/branch_md5.txt
# RGBLIGHT_ENABLE = yes, without animations
make HELIX=verbose,no_ani helix/rev2/back:default:clean
make HELIX=verbose,no_ani helix/rev2/back:default
md5 helix_rev2_back_default.hex >> /tmp/branch_md5.txt
diff -u /tmp/master_md5.txt /tmp/branch_md5.txt
```
Test result:
```
--- /tmp/master_md5.txt 2020-01-03 15:42:22.000000000 +0900
+++ /tmp/branch_md5.txt 2020-01-03 15:42:42.000000000 +0900
@@ -1,4 +1,4 @@
-master
+refactor_rgblight_reconfig.h
MD5 (helix_rev2_default.hex) = f360032edd522448366d471d8f4f8181
MD5 (helix_rev2_back_default.hex) = 0c663acc6cccc44476b3b969ad22a48f
MD5 (helix_rev2_back_default.hex) = e66b1195ff6d38e6e22c975b8ae42fd3
```
* Expressions that are too long are difficult to read, so wrap them.
* Edit the expression again
* remove `defined(RGBLIGHT_ANIMATIONS)` in `tmk_core/common/*/suspend.c`, `tmk_core/protocol/*/main.c`
move contents of rgblight_reconfig.h to rgblight.h.
The following changes were made to rgblight.h.
```diff
+#ifdef RGBLIGHT_USE_TIMER
void rgblight_task(void);
void rgblight_timer_init(void);
void rgblight_timer_enable(void);
void rgblight_timer_disable(void);
void rgblight_timer_toggle(void);
+#else
+#define rgblight_task()
+#define rgblight_timer_init()
+#define rgblight_timer_enable()
+#define rgblight_timer_disable()
+#define rgblight_timer_toggle()
+#endif
```
The following changes were made to tmk_core/common/avr/suspend.c, tmk_core/common/chibios/suspend.c, tmk_core/protocol/chibios/main.c, tmk_core/protocol/lufa/lufa.c, tmk_core/protocol/vusb/main.c.
```diff
-# ifdef RGBLIGHT_ANIMATIONS
rgblight_timer_enable();
-# endif
```
```diff
-#if defined(RGBLIGHT_ANIMATIONS) && defined(RGBLIGHT_ENABLE)
+#if defined(RGBLIGHT_ENABLE)
rgblight_task();
#endif
```
* remove 'defined(RGBLIGHT_ANIMATIONS)' in tmk_core/common/keyboard.c
Co-authored-by: Joel Challis <git@zvecr.com>
* Move tmk_core/common/backlight to quantum/backlight
* Add guards to backlight inclusion
* Add guards to backlight inclusion
* Update backlight guards on clueboard/60
* Use full paths to avoid vpath issues
Patch from https://github.com/qmk/qmk_firmware/issues/3657#issuecomment-415147411
Long story short, in avr-gcc pre-8.2, reset_key was assigned to a memory area that was in a normal range, but when 8.2 came out, that memory got moved to an out of range area, causing errors like 0x800293 out of range. Apparently, this was fixed up in avr-gcc, but we haven't seen a release with the fix yet (we expected it in 8.3, but that didn't happen for some reason).
What this commit does is move the reset_key back to the original memory location it was in before.
* Add suspend functions
* Disable RGB code if it's disabled
* Add keyboard_init functions
* Change where references so it will compile
* Wrong command chained in wake up kb function
* Fix non-feature file changes
* Add documentation
* Re-add matrix init docs
* add rgblight code to example
* Remove suspend code
* Clean up docs
* Fix docs
* Fix suspend code
* more doc fixes
* change function to startup_* rather than keyboard_init_
* fix spelling error
* fix up docs to finish removing keyboard_init
* Use Pre and Post init functions
* Update Documenation
* Remove changes to my keymap and userspace code
* Cleanup
* Revert changes to extra files
* Forgot a semicolon
* Make sure all protocols call keyboard_setup
* Cleanup functions
* Unset startup_user
* Remove changes from division keyboard
* Readd startup_user function
* Remove all to startup_user
* Update docs/custom_quantum_functions.md
Co-Authored-By: drashna <drashna@live.com>
* Update docs/custom_quantum_functions.md
Co-Authored-By: drashna <drashna@live.com>
* Add suggestion line
* Rebase fixes
* Update documentation to be more useful/accurate
* Cleanup of documentation
* Fix spacing inconsistency
* Revert unexpected change to keymap
* [BACKLIGHT_CAPS_LOCK_INDICATOR] Use backlight toggling as Caps Lock LED
I've implemented this feature because S65-X doesn't have LED indicators
and the existing led_set_kb(usb_led) function try to use backlight as
indicator but that creates an inconsistency with backlight_config state.
- define `BACKLIGHT_CAPS_LOCK_INDICATOR` to enable Caps Lock indicator
using backlight (for keyboards without dedicated LED)
- Don't turn off LED indicators when suspend because backlight is
already turned off. Else led_set(0) will turn back on backlight.
- Documentation has been updated
* [BACKLIGHT_CAPS_LOCK_INDICATOR] Turn off all LED indicators except Caps Lock if BACKLIGHT_CAPS_LOCK_INDICATOR
* [BACKLIGHT_CAPS_LOCK] Rename BACKLIGHT_CAPS_LOCK_INDICATOR
* [BACKLIGHT_CAPS_LOCK] Use new IS_LED_ON method
* Only re-enable RGBLIGHT if it was on when going to sleep
* Reformat file to follow QMK Standards
* Fix check, since this is a loop, whoops
Much thanks to @Rockman18 for catching this and posting the additional code!
* Initial version of zeal60
* WIP
* Fixes issue #900
* Adding RGB underglow functionality.
Fixed a compile-time conflict caused by enabling RGB underglow functionality.
* Refactor RPC protocol
* Fix last merge
* README for RGB underglow updated.
* Additional README changes.
* Adding RGBW strip software-based current-limiting functionality.
* RGBW current-limiting functionality should be handled by RGBSTRIP_MAX_CURRENT_PER_LIGHT instead.
* Updated README to reflect implementation of built-in current limiting.
* Keymap readability improvements.
* Minor keymap improvements.
* Fixed LED driver init sequence, formatting
* Dimming implementation tested, working.
* Stab LEDs synced with spacebar hits in effects.
* RGB underglow tested and functional. Simplified README for RGB underglow.
* Undid accidental file deletion from previous merge conflict. Safer values for RGB underglow.
* Improved arrow key positions in keymap.
* Added functionality to correct uneven RGB underglow. Refactored related code.
* Reverted to safer values for underglow.
* Changes for v0.3
* Custom LED brightness scaling will take place after current adjustment in order to avoid being overridden.
* Create keymap.c
Added split backspace and split shift to ISO layout
* Create config.h
Turned on LEDs for new layout
* Fixed bug where left spacebar stabilizer LED (LC06) would adopt color of row above.
* Added hhkb_wilba keymap
* Update keymap.c
* Update keymap.c
* Update keymap.c
* Added indicators, full param setting via host
* Added "mousekey" layout
* Added Zeal65 support, factory test mode
* Keycode safe range changed, caused bugs
* Bumped EEPROM version due to change in QMK keycodes
* Disable HHKB "blocked" LEDs if KC_NO in keymap
* Added "disable_hhkb_blocker_leds"
* Required overridden function for keymaps in EEPROM
* Added polar coordinate mapping, effect speed
* Force Raw HID interface number to 1 always
* Fixed last merge from master
* Added effect speed to default keymaps
* add BACKLIGHT_ prefix to vars
* add BACKLIGHT_ prefix to vars
* Keymap speed effect; keymap improvements/fixes
Readme updated to match changes
* Refactored to use common IS31FL3731/I2C drivers
* Fixed make rules, backlight disabled feature
* Make split rightshift default for Zeal65
* Added M60-A as a "version" of Zeal60.
* Renamed IS31FL3731 driver functions
* Fix suspend_wakeup_init_kb() being defined twice
* First pass refactor dynamic keymaps
* Updated to changed I2C and ISSI drivers
* Refactor zeal_color.* usage to quantum/color.*
* Updated Zeal65, fixed dynamic_keymap
* Major refactoring of Zeal60 backlight and API
* Lots of little cleanups
* Added readme.md
* Added readme.md
* Added LAYOUT_60*() macros, refactored and cleaned up default keymaps
* Fix compile error in suspend.c
* Added Zeal65 LAYOUT macros, info.json
* Added rama/m60_a, deleted zeal60/keymaps/m60_a
* Fixed rama/m60_a/keymaps/proto
* Fixed compilation error for suspend.c
* Requested changes for PR
* Fixed readme.md images
* Another readme.md fix
* Added drashna's requested changes
* add temporary test code rgblight-macro-test1.[ch]
* rgblight.h : mode auto numberring and auto generate mode name symbol
No change in build result.
* rgblight.c use RGBLIGHT_MODE_xxx symbols
No change in build result.
* quantum.c use RGBLIGHT_MODE_xxx symbols
No change in build result.
* fix build break. when RGB_MATRIX_ENABLE defined
* add temporary test code rgblight-macro-test2.[ch]
* modify rgblight_mode_eeprom_helper() and rgblight_sethsv_eeprom_helper()
* modify rgblight_task()
* configurable each effect compile on/off in config.h
* update docs/feature_rgblight.md
* fix conflict. docs/feature_rgblight.md
* remove temporary test code rgblight-macro-test*.[ch]
* fix comment typo.
* remove old mode number from comment
* update docs/feature_rgblight.md about effect mode
* Revert "update docs/feature_rgblight.md about effect mode"
This reverts commit 43890663fcc9dda1899df7a37d382fc38b1a6d6d.
* some change docs/feature_rgblight.md
* fix typo
* docs/feature_rgblight.md update: revise mode number table
Appearenly, teensy controllers have some issues with waking up. If the rgblight is called "too soon", it will cause the controller to lock up, intermittently. Adding a 10 ms
delay seems to fix this issue, as it lets it have enough time to handle things properly.
This has been tested extensively on my Ergodox EZ, and can be seen in the @drashna userspace, under the "suspend_wakeup_init_user" function.
* Add suspend functions
* Disable RGB code if it's disabled
* Add suspend code to ChibiOS for future compatibility
* Add keyboard_init functions
* Change where references so it will compile
* Wrong command chained in wake up kb function
* Fix non-feature file changes
* Add documentation
* Re-add matrix init docs
* add rgblight code to example
* Remove keyboard init stuff for separate PR
* And and fix _noeeprom functions to many of the RGB Underglow functions
* Many functions are unnecessarily calling the eeprom write code. The toggle/enable is command is especially guilty of this, as it writes to EEPROM 3 times. But rgb mode writes twice, every time it's called. And init resets the rgb eeprom range and then writes back to it twice!
* Fixed the rgblight_sethsv_noeeprom to work as expected, by moving a lot of the code to a helper function.
* Added a noeeprom function for mode, enable, disable, and toggle functions. (didn't bother for increase/decrease stuff, and didn't add new keycodes)
* Add to predefined colors list
* Add new functions to manual/docs
* Update RGB Sleep feature to use _noeeprom
Because that's exactly what it should be doing, actually!
* Generate api docs from source code
* Add a bunch of doxygen comments
* more doxygen comments
* Add the in-progress api docs
* script to generate docs from travis
* Add doc generation to the travis job
* make travis_docs.sh commit the work it does
* make sure the docs script exits cleanly
* pull fuse settings for bootloader jump
* fix 32a chips
* make automatic bootloader selection optional
* quantify bootloaders
* fixs #164, speeds up dfu reset
* fix for chips w/o usb
* missing an n
* fix bootloader sizes, use words for addresses
* fix bmini, pearl, and [[ issue, make things quiet
* ignore avr errors on arm for now
* update settings for the light
* document bootloader stuff
* add bootloader title
Adopt the macros for saving/restoring the interrupt state
that are provided by the avr gcc environment.
Removing intialization of the timer value; this shaves off
a few bytes because globals are default initialized to zero.
