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🏗️ Fix Maple HAL/STM32F1 PWM (#23211)

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This commit is contained in:
Mike La Spina 2021-12-03 12:48:48 -06:00 committed by Scott Lahteine
parent d7abb891cd
commit 48358d6a5c
13 changed files with 48 additions and 27 deletions
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4
Marlin/src/HAL/AVR/timers.h
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@ -109,8 +109,8 @@ FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
* (otherwise, characters will be lost due to UART overflow).
* Then: Stepper, Endstops, Temperature, and -finally- all others.
*/
#define HAL_timer_isr_prologue(TIMER_NUM)
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_prologue(T)
#define HAL_timer_isr_epilogue(T)
/* 18 cycles maximum latency */
#ifndef HAL_STEP_TIMER_ISR

2
Marlin/src/HAL/DUE/timers.h
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@ -125,4 +125,4 @@ FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_SR;
}
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_epilogue(T)

4
Marlin/src/HAL/ESP32/timers.h
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@ -136,5 +136,5 @@ 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);
#define HAL_timer_isr_prologue(TIMER_NUM)
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_prologue(T)
#define HAL_timer_isr_epilogue(T)

4
Marlin/src/HAL/LINUX/timers.h
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@ -92,5 +92,5 @@ 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);
#define HAL_timer_isr_prologue(TIMER_NUM)
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_prologue(T)
#define HAL_timer_isr_epilogue(T)

2
Marlin/src/HAL/LPC1768/timers.h
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@ -170,4 +170,4 @@ FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
}
}
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_epilogue(T)

4
Marlin/src/HAL/NATIVE_SIM/timers.h
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@ -87,5 +87,5 @@ 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);
#define HAL_timer_isr_prologue(TIMER_NUM)
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_prologue(T)
#define HAL_timer_isr_epilogue(T)

10
Marlin/src/HAL/STM32/timers.cpp
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@ -97,9 +97,15 @@
#define STEP_TIMER_DEV _TIMER_DEV(STEP_TIMER)
#define TEMP_TIMER_DEV _TIMER_DEV(TEMP_TIMER)
// ------------------------
// --------------------------------------------------------------------------
// Local defines
// --------------------------------------------------------------------------
#define NUM_HARDWARE_TIMERS 2
// --------------------------------------------------------------------------
// Private Variables
// ------------------------
// --------------------------------------------------------------------------
HardwareTimer *timer_instance[NUM_HARDWARE_TIMERS] = { nullptr };

5
Marlin/src/HAL/STM32/timers.h
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@ -41,7 +41,6 @@
#define HAL_TIMER_TYPE_MAX UINT16_MAX
// Marlin timer_instance[] content (unrelated to timer selection)
#define NUM_HARDWARE_TIMERS 2
#define MF_TIMER_STEP 0 // Timer Index for Stepper
#define MF_TIMER_TEMP 1 // Timer Index for Temperature
#define MF_TIMER_PULSE MF_TIMER_STEP
@ -117,5 +116,5 @@ FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const ha
}
}
#define HAL_timer_isr_prologue(TIMER_NUM)
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_prologue(T)
#define HAL_timer_isr_epilogue(T)

32
Marlin/src/HAL/STM32F1/fast_pwm.cpp
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@ -27,21 +27,35 @@
#include "HAL.h"
#include "timers.h"
#define NR_TIMERS TERN(STM32_XL_DENSITY, 14, 8) // Maple timers, 14 for STM32_XL_DENSITY (F/G chips), 8 for HIGH density (C D E)
static uint16_t timer_freq[NR_TIMERS];
inline uint8_t timer_and_index_for_pin(const pin_t pin, timer_dev **timer_ptr) {
*timer_ptr = PIN_MAP[pin].timer_device;
for (uint8_t i = 0; i < NR_TIMERS; i++) if (*timer_ptr == HAL_get_timer_dev(i))
return i;
return 0;
}
void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
if (!PWM_PIN(pin)) return;
timer_dev *timer = PIN_MAP[pin].timer_device;
if (!(timer->regs.bas->SR & TIMER_CR1_CEN)) // Ensure the timer is enabled
timer_dev *timer; UNUSED(timer);
if (timer_freq[timer_and_index_for_pin(pin, &timer)] == 0)
set_pwm_frequency(pin, PWM_FREQUENCY);
uint16_t max_val = timer->regs.bas->ARR * v / v_size;
if (invert) max_val = v_size - max_val;
pwmWrite(pin, max_val);
const uint8_t channel = PIN_MAP[pin].timer_channel;
const uint16_t duty = invert ? v_size - v : v;
timer_set_compare(timer, channel, duty);
timer_set_mode(timer, channel, TIMER_PWM); // PWM Output Mode
}
void set_pwm_frequency(const pin_t pin, int f_desired) {
if (!PWM_PIN(pin)) return; // Don't proceed if no hardware timer
timer_dev *timer = PIN_MAP[pin].timer_device;
uint8_t channel = PIN_MAP[pin].timer_channel;
timer_dev *timer; UNUSED(timer);
timer_freq[timer_and_index_for_pin(pin, &timer)] = f_desired;
// Protect used timers
if (timer == HAL_get_timer_dev(MF_TIMER_TEMP)) return;
@ -53,8 +67,10 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
if (!(timer->regs.bas->SR & TIMER_CR1_CEN)) // Ensure the timer is enabled
timer_init(timer);
const uint8_t channel = PIN_MAP[pin].timer_channel;
timer_set_mode(timer, channel, TIMER_PWM);
uint16_t preload = 255; // Lock 255 PWM resolution for high frequencies
// Preload (resolution) cannot be equal to duty of 255 otherwise it may not result in digital off or on.
uint16_t preload = 254;
int32_t prescaler = (HAL_TIMER_RATE) / (preload + 1) / f_desired - 1;
if (prescaler > 65535) { // For low frequencies increase prescaler
prescaler = 65535;

2
Marlin/src/HAL/STM32F1/timers.h
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@ -188,7 +188,7 @@ FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
}
}
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_epilogue(T)
// No command is available in framework to turn off ARPE bit, which is turned on by default in libmaple.
// Needed here to reset ARPE=0 for stepper timer

2
Marlin/src/HAL/TEENSY31_32/timers.h
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@ -110,4 +110,4 @@ 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)
#define HAL_timer_isr_epilogue(T)

2
Marlin/src/HAL/TEENSY35_36/timers.h
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@ -109,4 +109,4 @@ 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)
#define HAL_timer_isr_epilogue(T)

2
Marlin/src/HAL/TEENSY40_41/timers.h
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@ -114,4 +114,4 @@ bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
void HAL_timer_isr_prologue(const uint8_t timer_num);
//void HAL_timer_isr_epilogue(const uint8_t timer_num) {}
#define HAL_timer_isr_epilogue(TIMER_NUM)
#define HAL_timer_isr_epilogue(T)