Add tone support for Due (#9807)

This commit is contained in:
Scott Lahteine 2018-02-25 10:48:14 -06:00 committed by GitHub
parent 0557ab5780
commit f2c0ed193d
Signed by: GitHub
GPG key ID: 4AEE18F83AFDEB23
5 changed files with 75 additions and 3 deletions

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@ -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

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@ -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
};

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@ -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

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@ -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 <http://www.gnu.org/licenses/>.
*
*/
/**
* 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

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@ -254,8 +254,10 @@ bool usb_task_other_requests(void) {
return true;
}
void HAL_init(void) {
toneInit();
uint16_t *ptr;
udd_disable();