diff options
Diffstat (limited to 'watch-library/watch/watch_buzzer.c')
-rw-r--r-- | watch-library/watch/watch_buzzer.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/watch-library/watch/watch_buzzer.c b/watch-library/watch/watch_buzzer.c new file mode 100644 index 00000000..04746416 --- /dev/null +++ b/watch-library/watch/watch_buzzer.c @@ -0,0 +1,52 @@ +/* + * 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. + */ + + inline void watch_enable_buzzer() { + PWM_1_init(); +} + +inline void watch_set_buzzer_period(uint32_t period) { + pwm_set_parameters(&PWM_1, period, period / 2); +} + +inline void watch_set_buzzer_on() { + pwm_enable(&PWM_1); +} + +inline void watch_set_buzzer_off() { + pwm_disable(&PWM_1); +} + +const uint16_t NotePeriods[108] = {31047, 29301, 27649, 26079, 24617, 23224, 21923, 20683, 19515, 18418, 17377, 16399, 15477, 14603, 13780, 13004, 12272, 11580, 10926, 10311, 9730, 9181, 8664, 8175, 7714, 7280, 6869, 6483, 6117, 5772, 5447, 5140, 4850, 4577, 4319, 4076, 3846, 3629, 3425, 3232, 3050, 2878, 2715, 2562, 2418, 2282, 2153, 2032, 1917, 1809, 1707, 1611, 1520, 1435, 1354, 1277, 1205, 1137, 1073, 1013, 956, 902, 851, 803, 758, 715, 675, 637, 601, 567, 535, 505, 476, 450, 424, 400, 378, 357, 336, 317, 300, 283, 267, 252, 238, 224, 212, 200, 188, 178, 168, 158, 149, 141, 133, 125, 118, 112, 105, 99, 94, 89, 84, 79, 74, 70, 66, 63}; + +void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) { + if (note == BUZZER_NOTE_REST) { + watch_set_buzzer_off(); + } else { + pwm_set_parameters(&PWM_1, NotePeriods[note], NotePeriods[note] / 2); + watch_set_buzzer_on(); + } + delay_ms(duration_ms); + watch_set_buzzer_off(); +} |