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author | Alexsander Akers <me@a2.io> | 2022-01-25 15:03:22 -0500 |
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committer | GitHub <noreply@github.com> | 2022-01-25 15:03:22 -0500 |
commit | b8de35658ffd78ad8b22f91ccbbd3d63663afda9 (patch) | |
tree | 1f265ddfcc8e5abf0316b81b15f80bf5c70fa7b7 /watch-library/hardware/watch/watch_buzzer.c | |
parent | 9e24f6c336773c7404139ab4db0eaab2f99504e2 (diff) | |
download | Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.tar.gz Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.tar.bz2 Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.zip |
Sensor Watch Simulator (#35)
* Put something on screen
* Use the 32bit watch_date_time repr to pass from JS
* Implement periodic callbacks
* Clear display on enabling
* Hook up watch_set_led_color() to SVG (green-only)
* Make debug output full-width
* Remove default Emscripten canvas
* Implement sleep and button clicks
* Fix time zone conversion bug in beats-time app
* Clean up warnings
* Fix pin levels
* Set time zone to browser value (if available)
* Add basic backup data saving
* Silence format specifier warnings in both targets
* Remove unnecessary, copied files
* Use RTC pointer to clear callbacks (if available)
* Use preprocessor define to avoid hardcoding MOVEMENT_NUM_FACES
* Change each face to const preprocessor definition
* Remove Intl.DateTimeFormat usage
* Update shell.html title, header
* Add touch start/end event handlers on SVG buttons
* Update shell.html
* Update folder structure (shared, simulator, hardware under watch-library)
* Tease out shared components from watch_slcd
* Clean up simulator watch_slcd.c inline JS calls
* Fix missing newlines at end of file
* Add simulator warnings (except format, unused-paremter)
* Implement remaining watch_rtc functions
* Fix button bug on mouse down then drag out
* Implement remaining watch_slcd functions
* Link keyboard events to buttons (for keys A, L, M)
* Rewrite event handling (mouse, touch, keyboard) in C
* Set explicit text UTF-8 charset in shell.html
* Address PR comments
* Remove unused directories from include paths
Diffstat (limited to 'watch-library/hardware/watch/watch_buzzer.c')
-rw-r--r-- | watch-library/hardware/watch/watch_buzzer.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/watch-library/hardware/watch/watch_buzzer.c b/watch-library/hardware/watch/watch_buzzer.c new file mode 100644 index 00000000..a275b00d --- /dev/null +++ b/watch-library/hardware/watch/watch_buzzer.c @@ -0,0 +1,64 @@ +/* + * MIT License + * + * Copyright (c) 2020 Joey Castillo + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "watch_buzzer.h" + + inline void watch_enable_buzzer(void) { + if (!hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) { + _watch_enable_tcc(); + } +} +inline void watch_set_buzzer_period(uint32_t period) { + hri_tcc_write_PERBUF_reg(TCC0, period); +} + +void watch_disable_buzzer(void) { + _watch_disable_tcc(); +} + +inline void watch_set_buzzer_on(void) { + gpio_set_pin_direction(BUZZER, GPIO_DIRECTION_OUT); + gpio_set_pin_function(BUZZER, WATCH_BUZZER_TCC_PINMUX); +} + +inline void watch_set_buzzer_off(void) { + gpio_set_pin_direction(BUZZER, GPIO_DIRECTION_OFF); + gpio_set_pin_function(BUZZER, GPIO_PIN_FUNCTION_OFF); +} + +// note: the buzzer uses a 1 MHz clock. these values were determined by dividing 1,000,000 by the target frequency. +// i.e. for a 440 Hz tone (A4 on the piano), 1MHz/440Hz = 2273 +const uint16_t NotePeriods[108] = {18182,17161,16197,15288,14430,13620,12857,12134,11453,10811,10204,9631,9091,8581,8099,7645,7216,6811,6428,6068,5727,5405,5102,4816,4545,4290,4050,3822,3608,3405,3214,3034,2863,2703,2551,2408,2273,2145,2025,1911,1804,1703,1607,1517,1432,1351,1276,1204,1136,1073,1012,956,902,851,804,758,716,676,638,602,568,536,506,478,451,426,402,379,358,338,319,301,284,268,253,239,225,213,201,190,179,169,159,150,142,134,127}; + +void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) { + if (note == BUZZER_NOTE_REST) { + watch_set_buzzer_off(); + } else { + hri_tcc_write_PERBUF_reg(TCC0, NotePeriods[note]); + hri_tcc_write_CCBUF_reg(TCC0, WATCH_BUZZER_TCC_CHANNEL, NotePeriods[note] / 2); + watch_set_buzzer_on(); + } + delay_ms(duration_ms); + watch_set_buzzer_off(); +} |