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Fix SKR E3 board BLTOUCH + SPEAKER timer conflict (#15781)

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This commit is contained in:
Miroslav Šustek
2019-11-07 00:34:29 +01:00
committed by Scott Lahteine
parent 814a2eaf8f
commit 9201197878
3 changed files with 21 additions and 3 deletions
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20
Marlin/src/HAL/HAL_STM32F1/timers.h
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@@ -47,6 +47,20 @@ typedef uint16_t hal_timer_t;
#define STEP_TIMER_CHAN 1 // Channel of the timer to use for compare and interrupts
#define TEMP_TIMER_CHAN 1 // Channel of the timer to use for compare and interrupts
/**
* Note: Timers may be used by platforms and libraries
*
* FAN PWMs:
* With FAN_SOFT_PWM disabled the Temperature class uses
* FANx_PIN timers to generate FAN PWM signals.
*
* Speaker:
* When SPEAKER is enabled, one timer is allocated by maple/tone.cpp.
* - If BEEPER_PIN has a timer channel (and USE_PIN_TIMER is
* defined in tone.cpp) it uses the pin's own timer.
* - Otherwise it uses Timer 8 on boards with STM32_HIGH_DENSITY
* or Timer 4 on other boards.
*/
#if defined(MCU_STM32F103CB) || defined(MCU_STM32F103C8)
#define STEP_TIMER_NUM 4 // For C8/CB boards, use timer 4
#else
@@ -58,7 +72,11 @@ typedef uint16_t hal_timer_t;
#if MB(BIGTREE_SKR_MINI_E3, BIGTREE_SKR_E3_DIP, BTT_SKR_MINI_E3_V1_2, MKS_ROBIN_LITE)
// SKR Mini E3 boards use PA8 as FAN_PIN, so TIMER 1 is used for Fan PWM.
#define SERVO0_TIMER_NUM 8
#ifdef STM32_HIGH_DENSITY
#define SERVO0_TIMER_NUM 8 // tone.cpp uses Timer 4
#else
#define SERVO0_TIMER_NUM 3 // tone.cpp uses Timer 8
#endif
#else
#define SERVO0_TIMER_NUM 1 // SERVO0 or BLTOUCH
#endif