From f2c0ed193dbd6494e66755b3f9b7d75512d3dd06 Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Sun, 25 Feb 2018 10:48:14 -0600 Subject: [PATCH] Add tone support for Due (#9807) --- Marlin/src/HAL/HAL_DUE/HAL_Due.h | 8 ++- Marlin/src/HAL/HAL_DUE/HAL_timers_Due.cpp | 2 +- Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h | 2 + Marlin/src/HAL/HAL_DUE/Tone.cpp | 62 +++++++++++++++++++++++ Marlin/src/HAL/HAL_DUE/usb/usb_task.c | 4 +- 5 files changed, 75 insertions(+), 3 deletions(-) create mode 100644 Marlin/src/HAL/HAL_DUE/Tone.cpp diff --git a/Marlin/src/HAL/HAL_DUE/HAL_Due.h b/Marlin/src/HAL/HAL_DUE/HAL_Due.h index 014c59a7e..ab12a11e9 100644 --- a/Marlin/src/HAL/HAL_DUE/HAL_Due.h +++ b/Marlin/src/HAL/HAL_DUE/HAL_Due.h @@ -157,11 +157,17 @@ void HAL_enable_AdcFreerun(void); /** * Pin Map */ - #define GET_PIN_MAP_PIN(index) index #define GET_PIN_MAP_INDEX(pin) pin #define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval) +/** + * Tone + */ +void toneInit(); +void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration=0); +void noTone(const pin_t _pin); + // Enable hooks into idle and setup for USB stack #define HAL_IDLETASK 1 #define HAL_INIT 1 diff --git a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.cpp b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.cpp index cf6dc49bd..43e8a0691 100644 --- a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.cpp +++ b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.cpp @@ -67,7 +67,7 @@ const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = { { TC1, 0, TC3_IRQn, 2}, // 3 - stepper { TC1, 1, TC4_IRQn, 15}, // 4 - temperature { TC1, 2, TC5_IRQn, 0}, // 5 - [servo timer3] - { TC2, 0, TC6_IRQn, 0}, // 6 + { TC2, 0, TC6_IRQn, 0}, // 6 - tone { TC2, 1, TC7_IRQn, 0}, // 7 { TC2, 2, TC8_IRQn, 0}, // 8 }; diff --git a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h index 6abcab7cb..b25ec1697 100644 --- a/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h +++ b/Marlin/src/HAL/HAL_DUE/HAL_timers_Due.h @@ -45,6 +45,7 @@ typedef uint32_t hal_timer_t; #define STEP_TIMER_NUM 3 // index of timer to use for stepper #define TEMP_TIMER_NUM 4 // index of timer to use for temperature +#define TONE_TIMER_NUM 6 // index of timer to use for beeper tones #define HAL_TIMER_RATE ((F_CPU) / 2) // frequency of timers peripherals #define STEPPER_TIMER_PRESCALE 1.0 // prescaler for setting stepper frequency @@ -64,6 +65,7 @@ typedef uint32_t hal_timer_t; #define HAL_STEP_TIMER_ISR void TC3_Handler() #define HAL_TEMP_TIMER_ISR void TC4_Handler() +#define HAL_TONE_TIMER_ISR void TC6_Handler() #define PULSE_TIMER_NUM STEP_TIMER_NUM #define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE diff --git a/Marlin/src/HAL/HAL_DUE/Tone.cpp b/Marlin/src/HAL/HAL_DUE/Tone.cpp new file mode 100644 index 000000000..88f92243e --- /dev/null +++ b/Marlin/src/HAL/HAL_DUE/Tone.cpp @@ -0,0 +1,62 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm + * + * 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 . + * + */ + +/** + * Description: Tone function for Arduino Due and compatible (SAM3X8E) + * Derived from http://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012 + */ + +#ifdef ARDUINO_ARCH_SAM + +#include "HAL_Due.h" +#include "HAL_timers_Due.h" + +static pin_t tone_pin; +volatile static int32_t toggles; + +void toneInit() { + HAL_timer_start(TONE_TIMER_NUM, 1); // Lowest frequency possible +} + +void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) { + tone_pin = _pin; + toggles = 2 * frequency * duration / 1000; + HAL_timer_set_compare(TONE_TIMER_NUM, VARIANT_MCK / 2 / frequency); // 84MHz / 2 prescaler / Hz + HAL_timer_enable_interrupt(TONE_TIMER_NUM); +} + +void noTone(const pin_t _pin) { + HAL_timer_disable_interrupt(TONE_TIMER_NUM); + digitalWrite(_pin, LOW); +} + +HAL_TONE_TIMER_ISR { + static uint8_t pin_state = 0; + HAL_timer_isr_prologue(TONE_TIMER_NUM); + if (toggles) { + toggles--; + digitalWrite(tone_pin, (pin_state ^= 1)); + } + else noTone(tone_pin); // seems superfluous ? +} + +#endif // ARDUINO_ARCH_SAM diff --git a/Marlin/src/HAL/HAL_DUE/usb/usb_task.c b/Marlin/src/HAL/HAL_DUE/usb/usb_task.c index 58221aa05..f2b2b60ce 100644 --- a/Marlin/src/HAL/HAL_DUE/usb/usb_task.c +++ b/Marlin/src/HAL/HAL_DUE/usb/usb_task.c @@ -254,8 +254,10 @@ bool usb_task_other_requests(void) { return true; } - void HAL_init(void) { + + toneInit(); + uint16_t *ptr; udd_disable();