169 lines
6.5 KiB
C
169 lines
6.5 KiB
C
/**
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* Marlin 3D Printer Firmware
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*
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* Copyright (C) 2016 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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// --------------------------------------------------------------------------
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// Includes
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// --------------------------------------------------------------------------
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#include <stdint.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 // TODO: One is 16-bit, one 32-bit - does this need to be checked?
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#define HAL_TIMER_TYPE_MAX 0xFFFF
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#ifdef STM32F0xx
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#define HAL_TIMER_RATE (HAL_RCC_GetSysClockFreq()) // frequency of timer peripherals
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#define TEMP_TIMER_PRESCALE 666 // prescaler for setting temperature timer, 72Khz
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#define STEPPER_TIMER_PRESCALE 24 // prescaler for setting stepper timer, 2Mhz
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#define STEP_TIMER 16
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#define TEMP_TIMER 17
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#elif defined STM32F1xx
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#define HAL_TIMER_RATE (HAL_RCC_GetPCLK2Freq()) // frequency of timer peripherals
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#define TEMP_TIMER_PRESCALE 1000 // prescaler for setting temperature timer, 72Khz
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#define STEPPER_TIMER_PRESCALE 36 // prescaler for setting stepper timer, 2Mhz.
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#define STEP_TIMER 4
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#define TEMP_TIMER 2
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#elif defined STM32F4xx
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#define HAL_TIMER_RATE (HAL_RCC_GetPCLK2Freq()) // frequency of timer peripherals
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#define TEMP_TIMER_PRESCALE 2333 // prescaler for setting temperature timer, 72Khz
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#define STEPPER_TIMER_PRESCALE 84 // prescaler for setting stepper timer, 2Mhz
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#define STEP_TIMER 4
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#define TEMP_TIMER 5
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#elif defined STM32F7xx
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#define HAL_TIMER_RATE (HAL_RCC_GetSysClockFreq()/2) // frequency of timer peripherals
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#define TEMP_TIMER_PRESCALE 1500 // prescaler for setting temperature timer, 72Khz
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#define STEPPER_TIMER_PRESCALE 54 // prescaler for setting stepper timer, 2Mhz.
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#define STEP_TIMER 5
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#define TEMP_TIMER 7
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#if MB(REMRAM_V1)
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#define STEP_TIMER 2
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#endif
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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 STEPPER_TIMER_RATE (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE) // frequency of stepper timer
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#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
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#define TEMP_TIMER_FREQUENCY 1000 // temperature interrupt frequency
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#define PULSE_TIMER_RATE STEPPER_TIMER_RATE // frequency of pulse timer
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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_DEV(X) TIM##X
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#define _TIMER_DEV(X) __TIMER_DEV(X)
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#define STEP_TIMER_DEV _TIMER_DEV(STEP_TIMER)
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#define TEMP_TIMER_DEV _TIMER_DEV(TEMP_TIMER)
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#define __TIMER_CALLBACK(X) TIM##X##_IRQHandler
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#define _TIMER_CALLBACK(X) __TIMER_CALLBACK(X)
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#define STEP_TIMER_CALLBACK _TIMER_CALLBACK(STEP_TIMER)
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#define TEMP_TIMER_CALLBACK _TIMER_CALLBACK(TEMP_TIMER)
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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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#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
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#define TEMP_ISR_ENABLED() HAL_timer_interrupt_enabled(TEMP_TIMER_NUM)
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extern void Step_Handler(stimer_t *htim);
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extern void Temp_Handler(stimer_t *htim);
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#define HAL_STEP_TIMER_ISR void Step_Handler(stimer_t *htim)
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#define HAL_TEMP_TIMER_ISR void Temp_Handler(stimer_t *htim)
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// --------------------------------------------------------------------------
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// Types
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// --------------------------------------------------------------------------
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typedef stimer_t stm32f4_timer_t;
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// --------------------------------------------------------------------------
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// Public Variables
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// --------------------------------------------------------------------------
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extern stm32f4_timer_t TimerHandle[];
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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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FORCE_INLINE static uint32_t HAL_timer_get_count(const uint8_t timer_num) {
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return __HAL_TIM_GET_COUNTER(&TimerHandle[timer_num].handle);
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}
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FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const uint32_t compare) {
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__HAL_TIM_SET_AUTORELOAD(&TimerHandle[timer_num].handle, compare);
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if (HAL_timer_get_count(timer_num) >= compare)
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TimerHandle[timer_num].handle.Instance->EGR |= TIM_EGR_UG; // Generate an immediate update interrupt
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}
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FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
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return __HAL_TIM_GET_AUTORELOAD(&TimerHandle[timer_num].handle);
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}
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FORCE_INLINE static void HAL_timer_restrain(const uint8_t timer_num, const uint16_t interval_ticks) {
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const hal_timer_t mincmp = HAL_timer_get_count(timer_num) + interval_ticks;
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if (HAL_timer_get_compare(timer_num) < mincmp)
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HAL_timer_set_compare(timer_num, mincmp);
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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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