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Better STM32 Tone timer int priority (#18385)

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Jason Smith 2020-06-22 13:30:45 -07:00 committed by GitHub
parent 819e48972d
commit e52afa8b19
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2 changed files with 10 additions and 0 deletions
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9
Marlin/src/HAL/STM32/timers.cpp
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@ -36,6 +36,15 @@
#define TEMP_TIMER_IRQ_PRIO 14 // 14 = after hardware ISRs #define TEMP_TIMER_IRQ_PRIO 14 // 14 = after hardware ISRs
#endif #endif
// Ensure the default timer priority is somewhere between the STEP and TEMP priorities.
// The STM32 framework defaults to interrupt 14 for all timers. This should be increased so that
// timing-sensitive operations such as speaker output are note impacted by the long-running
// temperature ISR. This must be defined in the platformio.ini file or the board's variant.h,
// so that it will be consumed by framework code.
#if !(TIM_IRQ_PRIO > STEP_TIMER_IRQ_PRIO && TIM_IRQ_PRIO < TEMP_TIMER_IRQ_PRIO)
#error "Default timer interrupt priority is unspecified or set to a value which may degrade performance."
#endif
#if HAS_TMC_SW_SERIAL #if HAS_TMC_SW_SERIAL
#include <SoftwareSerial.h> #include <SoftwareSerial.h>
#ifndef SWSERIAL_TIMER_IRQ_PRIO #ifndef SWSERIAL_TIMER_IRQ_PRIO

1
platformio.ini
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@ -329,6 +329,7 @@ build_flags = ${common.build_flags}
-IMarlin/src/HAL/STM32 -std=gnu++14 -IMarlin/src/HAL/STM32 -std=gnu++14
-DUSBCON -DUSBD_USE_CDC -DUSBCON -DUSBD_USE_CDC
-DUSBD_VID=0x0483 -DUSBD_VID=0x0483
-DTIM_IRQ_PRIO=13
build_unflags = -std=gnu++11 build_unflags = -std=gnu++11
src_filter = ${common.default_src_filter} +<src/HAL/STM32> src_filter = ${common.default_src_filter} +<src/HAL/STM32>