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Increase STM32F1 Servo Timer Interrupt Priority (#18637)

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This commit is contained in:
Jason Smith
2020-07-14 17:07:27 -07:00
committed by GitHub
parent c9718504c5
commit 95b76a65c3
3 changed files with 18 additions and 6 deletions
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16
Marlin/src/HAL/STM32F1/timers.cpp
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@@ -47,7 +47,10 @@
* TODO: Calculate Timer prescale value, so we get the 32bit to adjust
*/
void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
void timer_set_interrupt_priority(uint_fast8_t timer_num, uint_fast8_t priority) {
nvic_irq_num irq_num;
switch (timer_num) {
case 1: irq_num = NVIC_TIMER1_CC; break;
@@ -64,9 +67,14 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
* This should never happen. Add a Sanitycheck for timer number.
* Should be a general timer since basic timers have no CC channels.
*/
break;
return;
}
nvic_irq_set_priority(irq_num, priority);
}
void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
/**
* Give the Stepper ISR a higher priority (lower number)
* so it automatically preempts the Temperature ISR.
@@ -83,7 +91,7 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
timer_set_compare(STEP_TIMER_DEV, STEP_TIMER_CHAN, _MIN(hal_timer_t(HAL_TIMER_TYPE_MAX), (STEPPER_TIMER_RATE) / frequency));
timer_no_ARR_preload_ARPE(STEP_TIMER_DEV); // Need to be sure no preload on ARR register
timer_attach_interrupt(STEP_TIMER_DEV, STEP_TIMER_CHAN, stepTC_Handler);
nvic_irq_set_priority(irq_num, STEP_TIMER_IRQ_PRIO);
timer_set_interrupt_priority(STEP_TIMER_NUM, STEP_TIMER_IRQ_PRIO);
timer_generate_update(STEP_TIMER_DEV);
timer_resume(STEP_TIMER_DEV);
break;
@@ -95,7 +103,7 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
timer_set_reload(TEMP_TIMER_DEV, 0xFFFF);
timer_set_compare(TEMP_TIMER_DEV, TEMP_TIMER_CHAN, _MIN(hal_timer_t(HAL_TIMER_TYPE_MAX), (F_CPU) / (TEMP_TIMER_PRESCALE) / frequency));
timer_attach_interrupt(TEMP_TIMER_DEV, TEMP_TIMER_CHAN, tempTC_Handler);
nvic_irq_set_priority(irq_num, TEMP_TIMER_IRQ_PRIO);
timer_set_interrupt_priority(TEMP_TIMER_NUM, TEMP_TIMER_IRQ_PRIO);
timer_generate_update(TEMP_TIMER_DEV);
timer_resume(TEMP_TIMER_DEV);
break;