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pick best clock for prescaler

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This commit is contained in:
Scott Lahteine
2022-06-10 22:22:40 -05:00
parent 701ab0db8e
commit ad4cf3e332
2 changed files with 8 additions and 4 deletions
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Marlin/src/HAL/DUE/Servo.cpp
+4 -2
View File
@@ -99,8 +99,10 @@ static void _initISR(Tc *tc, uint32_t channel, uint32_t id, IRQn_Type irqn) {
TC_Configure(tc, channel,
TC_CMR_WAVE // Waveform mode
| TC_CMR_WAVSEL_UP_RC // Counter running up and reset when equal to RC
| (SERVO_TIMER_PRESCALER == 2 ? TC_CMR_TCCLKS_TIMER_CLOCK1 : 0) // MCK/2
| (SERVO_TIMER_PRESCALER == 32 ? TC_CMR_TCCLKS_TIMER_CLOCK3 : 0) // MCK/32
| (SERVO_TIMER_PRESCALER == 2 ? TC_CMR_TCCLKS_TIMER_CLOCK1 : 0) // MCK/2
| (SERVO_TIMER_PRESCALER == 8 ? TC_CMR_TCCLKS_TIMER_CLOCK2 : 0) // MCK/8
| (SERVO_TIMER_PRESCALER == 32 ? TC_CMR_TCCLKS_TIMER_CLOCK3 : 0) // MCK/32
| (SERVO_TIMER_PRESCALER == 128 ? TC_CMR_TCCLKS_TIMER_CLOCK4 : 0) // MCK/128
);
// Wait 1ms before the first ISR
Marlin/src/HAL/DUE/timers.cpp
+4 -2
View File
@@ -92,8 +92,10 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
TC_Configure(tc, channel,
TC_CMR_WAVE
| TC_CMR_WAVSEL_UP_RC
| (HAL_TIMER_PRESCALER == 2 ? TC_CMR_TCCLKS_TIMER_CLOCK1 : 0)
| (HAL_TIMER_PRESCALER == 32 ? TC_CMR_TCCLKS_TIMER_CLOCK3 : 0)
| (HAL_TIMER_PRESCALER == 2 ? TC_CMR_TCCLKS_TIMER_CLOCK1 : 0)
| (HAL_TIMER_PRESCALER == 8 ? TC_CMR_TCCLKS_TIMER_CLOCK2 : 0)
| (HAL_TIMER_PRESCALER == 32 ? TC_CMR_TCCLKS_TIMER_CLOCK3 : 0)
| (HAL_TIMER_PRESCALER == 128 ? TC_CMR_TCCLKS_TIMER_CLOCK4 : 0)
);
// Set compare value