181 lines
5.8 KiB
C
181 lines
5.8 KiB
C
/**
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* Marlin 3D Printer Firmware
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*
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
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* Copyright (c) 2017 Victor Perez
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <stdint.h>
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#include "../../inc/MarlinConfig.h"
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// ------------------------
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// Defines
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// ------------------------
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#define FORCE_INLINE __attribute__((always_inline)) inline
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#define hal_timer_t uint32_t
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#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF // Timers can be 16 or 32 bit
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#ifdef STM32F0xx
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#define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals
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#ifndef STEP_TIMER
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#define STEP_TIMER 16
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#endif
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#ifndef TEMP_TIMER
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#define TEMP_TIMER 17
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#endif
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#elif defined(STM32F1xx)
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#define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals
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#ifndef STEP_TIMER
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#define STEP_TIMER 4
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#endif
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#ifndef TEMP_TIMER
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#define TEMP_TIMER 2
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#endif
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#elif defined(STM32F401xC) || defined(STM32F401xE)
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#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals
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#ifndef STEP_TIMER
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#define STEP_TIMER 9
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#endif
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#ifndef TEMP_TIMER
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#define TEMP_TIMER 10
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#endif
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#elif defined(STM32F4xx)
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#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals
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#ifndef STEP_TIMER
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#define STEP_TIMER 6 // STM32F401 has no TIM6, TIM7, or TIM8
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#endif
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#ifndef TEMP_TIMER
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#define TEMP_TIMER 14 // TIM7 is consumed by Software Serial if used.
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#endif
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#elif defined(STM32F7xx)
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#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals
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#ifndef STEP_TIMER
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#define STEP_TIMER 6 // the RIGHT timer!
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#endif
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#ifndef TEMP_TIMER
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#define TEMP_TIMER 14
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#endif
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#endif
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#ifndef SWSERIAL_TIMER_IRQ_PRIO
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#define SWSERIAL_TIMER_IRQ_PRIO 1
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#endif
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#ifndef STEP_TIMER_IRQ_PRIO
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#define STEP_TIMER_IRQ_PRIO 2
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#endif
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#ifndef TEMP_TIMER_IRQ_PRIO
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#define TEMP_TIMER_IRQ_PRIO 14 // 14 = after hardware ISRs
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#endif
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#define STEP_TIMER_NUM 0 // index of timer to use for stepper
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#define TEMP_TIMER_NUM 1 // index of timer to use for temperature
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#define PULSE_TIMER_NUM STEP_TIMER_NUM
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#define TEMP_TIMER_FREQUENCY 1000 // Temperature::isr() is expected to be called at around 1kHz
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// TODO: get rid of manual rate/prescale/ticks/cycles taken for procedures in stepper.cpp
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#define STEPPER_TIMER_RATE 2000000 // 2 Mhz
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#define STEPPER_TIMER_PRESCALE ((HAL_TIMER_RATE)/(STEPPER_TIMER_RATE))
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#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
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#define PULSE_TIMER_RATE STEPPER_TIMER_RATE
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#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
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#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
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#define __TIMER_IRQ_NAME(X) TIM##X##_IRQn
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#define _TIMER_IRQ_NAME(X) __TIMER_IRQ_NAME(X)
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#define STEP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(STEP_TIMER)
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#define TEMP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(TEMP_TIMER)
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#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
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#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM)
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#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
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#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
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#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
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extern void Step_Handler(HardwareTimer *htim);
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extern void Temp_Handler(HardwareTimer *htim);
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#define HAL_STEP_TIMER_ISR() void Step_Handler(HardwareTimer *htim)
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#define HAL_TEMP_TIMER_ISR() void Temp_Handler(HardwareTimer *htim)
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// ------------------------
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// Public Variables
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// ------------------------
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extern HardwareTimer *timer_instance[];
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// ------------------------
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// Public functions
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// ------------------------
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void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
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void HAL_timer_enable_interrupt(const uint8_t timer_num);
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void HAL_timer_disable_interrupt(const uint8_t timer_num);
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bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
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//TIM_TypeDef* HAL_timer_device(const uint8_t timer_num); no need to be public for now. not public = not used externally
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// FORCE_INLINE because these are used in performance-critical situations
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FORCE_INLINE bool HAL_timer_initialized(const uint8_t timer_num) {
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return timer_instance[timer_num] != NULL;
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}
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FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
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return HAL_timer_initialized(timer_num) ? timer_instance[timer_num]->getCount() : 0;
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}
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// NOTE: Method name may be misleading.
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// STM32 has an Auto-Reload Register (ARR) as opposed to a "compare" register
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FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t overflow) {
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if (HAL_timer_initialized(timer_num)) {
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timer_instance[timer_num]->setOverflow(overflow + 1, TICK_FORMAT); // Value decremented by setOverflow()
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// wiki: "force all registers (Autoreload, prescaler, compare) to be taken into account"
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// So, if the new overflow value is less than the count it will trigger a rollover interrupt.
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if (overflow < timer_instance[timer_num]->getCount()) // Added 'if' here because reports say it won't boot without it
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timer_instance[timer_num]->refresh();
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}
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}
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#define HAL_timer_isr_prologue(TIMER_NUM)
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#define HAL_timer_isr_epilogue(TIMER_NUM)
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