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Allow STM32 pins to specify timers (MarlinFirmware#17805)
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Co-authored-by: Scott Lahteine <[email protected]>
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2 people authored and Emmanuel Viala committed Aug 21, 2020
1 parent 5b495be commit 79a4396
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Showing 4 changed files with 42 additions and 86 deletions.
44 changes: 42 additions & 2 deletions Marlin/src/HAL/STM32/timers.cpp
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Expand Up @@ -21,21 +21,61 @@
*/
#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)

#include "HAL.h"

#include "timers.h"

#include "../../inc/MarlinConfig.h"

// ------------------------
// Local defines
// ------------------------

#define NUM_HARDWARE_TIMERS 2

#ifndef SWSERIAL_TIMER_IRQ_PRIO
#define SWSERIAL_TIMER_IRQ_PRIO 1
#endif
#ifndef STEP_TIMER_IRQ_PRIO
#define STEP_TIMER_IRQ_PRIO 2
#endif
#ifndef TEMP_TIMER_IRQ_PRIO
#define TEMP_TIMER_IRQ_PRIO 14 // 14 = after hardware ISRs
#endif

#ifdef STM32F0xx
#define HAL_TIMER_RATE (F_CPU) // Frequency of timer peripherals
#define MCU_STEP_TIMER 16
#define MCU_TEMP_TIMER 17
#elif defined(STM32F1xx)
#define HAL_TIMER_RATE (F_CPU)
#define MCU_STEP_TIMER 4
#define MCU_TEMP_TIMER 2
#elif defined(STM32F401xC) || defined(STM32F401xE)
#define HAL_TIMER_RATE (F_CPU / 2)
#define MCU_STEP_TIMER 9
#define MCU_TEMP_TIMER 10
#elif defined(STM32F4xx) || defined(STM32F7xx)
#define HAL_TIMER_RATE (F_CPU / 2)
#define MCU_STEP_TIMER 6 // STM32F401 has no TIM6, TIM7, or TIM8
#define MCU_TEMP_TIMER 14 // TIM7 is consumed by Software Serial if used.
#endif

#ifndef STEP_TIMER
#define STEP_TIMER MCU_STEP_TIMER
#endif
#ifndef TEMP_TIMER
#define TEMP_TIMER MCU_TEMP_TIMER
#endif

#define __TIMER_DEV(X) TIM##X
#define _TIMER_DEV(X) __TIMER_DEV(X)
#define STEP_TIMER_DEV _TIMER_DEV(STEP_TIMER)
#define TEMP_TIMER_DEV _TIMER_DEV(TEMP_TIMER)

#define __TIMER_IRQ_NAME(X) TIM##X##_IRQn
#define _TIMER_IRQ_NAME(X) __TIMER_IRQ_NAME(X)
#define STEP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(STEP_TIMER)
#define TEMP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(TEMP_TIMER)

// ------------------------
// Private Variables
// ------------------------
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80 changes: 0 additions & 80 deletions Marlin/src/HAL/STM32/timers.h
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Expand Up @@ -33,80 +33,6 @@
#define hal_timer_t uint32_t
#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF // Timers can be 16 or 32 bit

#ifdef STM32F0xx

#define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals

#ifndef STEP_TIMER
#define STEP_TIMER 16
#endif

#ifndef TEMP_TIMER
#define TEMP_TIMER 17
#endif

#elif defined(STM32F1xx)

#define HAL_TIMER_RATE (F_CPU) // frequency of timer peripherals

#ifndef STEP_TIMER
#define STEP_TIMER 4
#endif

#ifndef TEMP_TIMER
#define TEMP_TIMER 2
#endif

#elif defined(STM32F401xC) || defined(STM32F401xE)

#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals

#ifndef STEP_TIMER
#define STEP_TIMER 9
#endif

#ifndef TEMP_TIMER
#define TEMP_TIMER 10
#endif

#elif defined(STM32F4xx)

#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals

#ifndef STEP_TIMER
#define STEP_TIMER 6 // STM32F401 has no TIM6, TIM7, or TIM8
#endif

#ifndef TEMP_TIMER
#define TEMP_TIMER 14 // TIM7 is consumed by Software Serial if used.
#endif

#elif defined(STM32F7xx)

#define HAL_TIMER_RATE (F_CPU / 2) // frequency of timer peripherals

#ifndef STEP_TIMER
#define STEP_TIMER 6 // the RIGHT timer!
#endif

#ifndef TEMP_TIMER
#define TEMP_TIMER 14
#endif

#endif

#ifndef SWSERIAL_TIMER_IRQ_PRIO
#define SWSERIAL_TIMER_IRQ_PRIO 1
#endif

#ifndef STEP_TIMER_IRQ_PRIO
#define STEP_TIMER_IRQ_PRIO 2
#endif

#ifndef TEMP_TIMER_IRQ_PRIO
#define TEMP_TIMER_IRQ_PRIO 14 // 14 = after hardware ISRs
#endif

#define STEP_TIMER_NUM 0 // index of timer to use for stepper
#define TEMP_TIMER_NUM 1 // index of timer to use for temperature
#define PULSE_TIMER_NUM STEP_TIMER_NUM
Expand All @@ -122,12 +48,6 @@
#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US

#define __TIMER_IRQ_NAME(X) TIM##X##_IRQn
#define _TIMER_IRQ_NAME(X) __TIMER_IRQ_NAME(X)

#define STEP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(STEP_TIMER)
#define TEMP_TIMER_IRQ_NAME _TIMER_IRQ_NAME(TEMP_TIMER)

#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)
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2 changes: 0 additions & 2 deletions Marlin/src/pins/stm32f0/pins_MALYAN_M300.h
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Expand Up @@ -43,8 +43,6 @@
//
// Timers
//
#undef STEP_TIMER
#undef TEMP_TIMER
#define STEP_TIMER 6
#define TEMP_TIMER 7

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2 changes: 0 additions & 2 deletions Marlin/src/pins/stm32f1/pins_MALYAN_M200.h
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Expand Up @@ -42,8 +42,6 @@
// On STM32F103:
// PB3, PB6, PB7, and PB8 can be used with pwm, which rules out TIM2 and TIM4.
// On STM32F070, 16 and 17 are in use, but 1 and 3 are available.
#undef STEP_TIMER
#undef TEMP_TIMER
#define STEP_TIMER 1
#define TEMP_TIMER 3

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