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117 lines
3.9 KiB
117 lines
3.9 KiB
/**
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* Marlin 3D Printer Firmware
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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) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
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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 <https://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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* HAL Timers for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
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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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typedef uint32_t hal_timer_t;
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#define HAL_TIMER_TYPE_MAX 0xFFFFFFFE
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#define GPT_TIMER_RATE F_BUS_ACTUAL // 150MHz
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#define GPT1_TIMER_PRESCALE 2
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#define GPT2_TIMER_PRESCALE 10
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#define GPT1_TIMER_RATE (GPT_TIMER_RATE / GPT1_TIMER_PRESCALE) // 75MHz
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#define GPT2_TIMER_RATE (GPT_TIMER_RATE / GPT2_TIMER_PRESCALE) // 15MHz
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#ifndef MF_TIMER_STEP
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#define MF_TIMER_STEP 0 // Timer Index for Stepper
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#endif
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#ifndef MF_TIMER_PULSE
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#define MF_TIMER_PULSE MF_TIMER_STEP
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#endif
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#ifndef MF_TIMER_TEMP
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#define MF_TIMER_TEMP 1 // Timer Index for Temperature
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#endif
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#define TEMP_TIMER_RATE 1000000
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#define TEMP_TIMER_FREQUENCY 1000
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#define STEPPER_TIMER_RATE GPT1_TIMER_RATE
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#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)
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#define STEPPER_TIMER_PRESCALE ((GPT_TIMER_RATE / 1000000) / STEPPER_TIMER_TICKS_PER_US)
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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 ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
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#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
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#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
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#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
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#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
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#ifndef HAL_STEP_TIMER_ISR
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#define HAL_STEP_TIMER_ISR() extern "C" void stepTC_Handler() // GPT1_Handler()
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#endif
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#ifndef HAL_TEMP_TIMER_ISR
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#define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler() // GPT2_Handler()
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#endif
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extern "C" {
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void stepTC_Handler();
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void tempTC_Handler();
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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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FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
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switch (timer_num) {
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case MF_TIMER_STEP: GPT1_OCR1 = compare - 1; break;
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case MF_TIMER_TEMP: GPT2_OCR1 = compare - 1; break;
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}
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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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switch (timer_num) {
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case MF_TIMER_STEP: return GPT1_OCR1;
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case MF_TIMER_TEMP: return GPT2_OCR1;
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}
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return 0;
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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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switch (timer_num) {
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case MF_TIMER_STEP: return GPT1_CNT;
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case MF_TIMER_TEMP: return GPT2_CNT;
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}
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return 0;
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}
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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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void HAL_timer_isr_prologue(const uint8_t timer_num);
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//void HAL_timer_isr_epilogue(const uint8_t timer_num) {}
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#define HAL_timer_isr_epilogue(T)
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