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ESP32 Tone Generator (#20704)

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This commit is contained in:
EvilGremlin
2021-01-14 11:33:50 +03:00
committed by GitHub
parent ecf5f5d21d
commit 8049db20ff
5 changed files with 79 additions and 3 deletions
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9
Marlin/src/HAL/ESP32/timers.h
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@@ -44,6 +44,9 @@ typedef uint64_t hal_timer_t;
#ifndef PWM_TIMER_NUM
#define PWM_TIMER_NUM 2 // index of timer to use for PWM outputs
#endif
#ifndef TONE_TIMER_NUM
#define TONE_TIMER_NUM 3 // index of timer for beeper tones
#endif
#define HAL_TIMER_RATE APB_CLK_FREQ // frequency of timer peripherals
@@ -59,6 +62,8 @@ typedef uint64_t hal_timer_t;
#define STEP_TIMER_MIN_INTERVAL 8 // minimum time in µs between stepper interrupts
#define TONE_TIMER_PRESCALE 1000 // Arbitrary value, no idea what i'm doing here
#define TEMP_TIMER_PRESCALE 1000 // prescaler for setting Temp timer, 72Khz
#define TEMP_TIMER_FREQUENCY 1000 // temperature interrupt frequency
@@ -90,11 +95,15 @@ typedef uint64_t hal_timer_t;
#ifndef HAL_PWM_TIMER_ISR
#define HAL_PWM_TIMER_ISR() extern "C" void pwmTC_Handler()
#endif
#ifndef HAL_TONE_TIMER_ISR
#define HAL_TONE_TIMER_ISR() extern "C" void toneTC_Handler()
#endif
extern "C" {
void tempTC_Handler();
void stepTC_Handler();
void pwmTC_Handler();
void toneTC_Handler();
}
// ------------------------