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author | Georgiy Bondarenko <69736697+nehilo@users.noreply.github.com> | 2021-03-04 20:54:23 +0300 |
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committer | Georgiy Bondarenko <69736697+nehilo@users.noreply.github.com> | 2021-03-04 20:54:23 +0300 |
commit | e8701195e66f2d27ffe17fb514eae8173795aaf7 (patch) | |
tree | 9f519c4abf6556b9ae7190a6210d87ead1dfadde /Marlin/src/HAL/DUE/Tone.cpp | |
download | kp3s-lgvl-e8701195e66f2d27ffe17fb514eae8173795aaf7.tar.xz kp3s-lgvl-e8701195e66f2d27ffe17fb514eae8173795aaf7.zip |
Initial commit
Diffstat (limited to 'Marlin/src/HAL/DUE/Tone.cpp')
-rw-r--r-- | Marlin/src/HAL/DUE/Tone.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Marlin/src/HAL/DUE/Tone.cpp b/Marlin/src/HAL/DUE/Tone.cpp new file mode 100644 index 0000000..9beb602 --- /dev/null +++ b/Marlin/src/HAL/DUE/Tone.cpp @@ -0,0 +1,60 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm + * + * SAMD51 HAL developed by Giuliano Zaro (AKA GMagician) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + */ + +/** + * Description: Tone function for Arduino Due and compatible (SAM3X8E) + * Derived from https://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012 + */ + +#ifdef ARDUINO_ARCH_SAM + +#include "../../inc/MarlinConfig.h" +#include "HAL.h" + +static pin_t tone_pin; +volatile static int32_t toggles; + +void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) { + tone_pin = _pin; + toggles = 2 * frequency * duration / 1000; + HAL_timer_start(TONE_TIMER_NUM, 2 * frequency); +} + +void noTone(const pin_t _pin) { + HAL_timer_disable_interrupt(TONE_TIMER_NUM); + extDigitalWrite(_pin, LOW); +} + +HAL_TONE_TIMER_ISR() { + static uint8_t pin_state = 0; + HAL_timer_isr_prologue(TONE_TIMER_NUM); + + if (toggles) { + toggles--; + extDigitalWrite(tone_pin, (pin_state ^= 1)); + } + else noTone(tone_pin); // turn off interrupt +} + +#endif // ARDUINO_ARCH_SAM |