diff options
Diffstat (limited to 'Marlin/src/HAL/TEENSY35_36/timers.h')
| -rw-r--r-- | Marlin/src/HAL/TEENSY35_36/timers.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/Marlin/src/HAL/TEENSY35_36/timers.h b/Marlin/src/HAL/TEENSY35_36/timers.h new file mode 100644 index 0000000..99269ac --- /dev/null +++ b/Marlin/src/HAL/TEENSY35_36/timers.h @@ -0,0 +1,112 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com + * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com + * + * 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 <https://www.gnu.org/licenses/>. + * + */ +#pragma once + +/** + * HAL Timers for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0) + */ + +#include <stdint.h> + +// ------------------------ +// Defines +// ------------------------ + +#define FORCE_INLINE __attribute__((always_inline)) inline + +typedef uint32_t hal_timer_t; +#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF + +#define FTM0_TIMER_PRESCALE 8 +#define FTM1_TIMER_PRESCALE 4 +#define FTM0_TIMER_PRESCALE_BITS 0b011 +#define FTM1_TIMER_PRESCALE_BITS 0b010 + +#define FTM0_TIMER_RATE (F_BUS / FTM0_TIMER_PRESCALE) // 60MHz / 8 = 7500kHz +#define FTM1_TIMER_RATE (F_BUS / FTM1_TIMER_PRESCALE) // 60MHz / 4 = 15MHz + +#define HAL_TIMER_RATE (FTM0_TIMER_RATE) + +#ifndef STEP_TIMER_NUM + #define STEP_TIMER_NUM 0 // Timer Index for Stepper +#endif +#ifndef PULSE_TIMER_NUM + #define PULSE_TIMER_NUM STEP_TIMER_NUM +#endif +#ifndef TEMP_TIMER_NUM + #define TEMP_TIMER_NUM 1 // Timer Index for Temperature +#endif + +#define TEMP_TIMER_FREQUENCY 1000 + +#define STEPPER_TIMER_RATE HAL_TIMER_RATE +#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) +#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US) + +#define PULSE_TIMER_RATE STEPPER_TIMER_RATE // frequency of pulse timer +#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE +#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US + +#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM) +#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM) +#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM) + +#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM) +#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM) + +#ifndef HAL_STEP_TIMER_ISR + #define HAL_STEP_TIMER_ISR() extern "C" void ftm0_isr() //void TC3_Handler() +#endif +#ifndef HAL_TEMP_TIMER_ISR + #define HAL_TEMP_TIMER_ISR() extern "C" void ftm1_isr() //void TC4_Handler() +#endif + +void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency); + +FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) { + switch (timer_num) { + case 0: FTM0_C0V = compare; break; + case 1: FTM1_C0V = compare; break; + } +} + +FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) { + switch (timer_num) { + case 0: return FTM0_C0V; + case 1: return FTM1_C0V; + } + return 0; +} + +FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) { + switch (timer_num) { + case 0: return FTM0_CNT; + case 1: return FTM1_CNT; + } + return 0; +} + +void HAL_timer_enable_interrupt(const uint8_t timer_num); +void HAL_timer_disable_interrupt(const uint8_t timer_num); +bool HAL_timer_interrupt_enabled(const uint8_t timer_num); + +void HAL_timer_isr_prologue(const uint8_t timer_num); +#define HAL_timer_isr_epilogue(TIMER_NUM) |