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Let laser/spindle use free AVR servo timers (#19011)

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This commit is contained in:
Giuliano Zaro
2020-08-14 15:41:44 +02:00
committed by GitHub
parent 1b097d0467
commit 6cfc4b5711
2 changed files with 7 additions and 4 deletions
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8
Marlin/src/HAL/AVR/ServoTimers.h
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@@ -60,9 +60,11 @@
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
//#define _useTimer1
#define _useTimer3
#define _useTimer4
#if !HAS_MOTOR_CURRENT_PWM
#define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
#if NUM_SERVOS > SERVOS_PER_TIMER
#define _useTimer4
#if !HAS_MOTOR_CURRENT_PWM && SERVOS > 2 * SERVOS_PER_TIMER
#define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
#endif
#endif
#elif defined(__AVR_ATmega32U4__)
#define _useTimer3

3
Marlin/src/HAL/AVR/inc/SanityCheck.h
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@@ -36,9 +36,10 @@
* Sanity checks for Spindle / Laser PWM
*/
#if ENABLED(SPINDLE_LASER_PWM)
#include "../ServoTimers.h" // Needed to check timer availability (_useTimer3)
#if SPINDLE_LASER_PWM_PIN == 4 || WITHIN(SPINDLE_LASER_PWM_PIN, 11, 13)
#error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by a system interrupt."
#elif NUM_SERVOS > 0 && (WITHIN(SPINDLE_LASER_PWM_PIN, 2, 3) || SPINDLE_LASER_PWM_PIN == 5)
#elif NUM_SERVOS > 0 && defined(_useTimer3) && (WITHIN(SPINDLE_LASER_PWM_PIN, 2, 3) || SPINDLE_LASER_PWM_PIN == 5)
#error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by the servo system."
#endif
#elif defined(SPINDLE_LASER_FREQUENCY)