bissen21/Marlin_Firmware
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Apply fixes for DUE

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Alternative to #7882. If F_CPU is greater than 1000 it can be evenly divided by 8. Over 10000, 16; over 100000, 32; over 1 million, 64; etc.
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Scott Lahteine
2017-10-07 13:34:25 -05:00
parent 4b36a542e0
commit 8315a8a716
8 changed files with 20 additions and 21 deletions
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8
Marlin/src/HAL/HAL_LPC1768/HAL_timers.cpp
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@ -33,22 +33,22 @@
void HAL_timer_init(void) {
SBI(LPC_SC->PCONP, 1); // power on timer0
LPC_TIM0->PR = ((HAL_TIMER_RATE / HAL_STEPPER_TIMER_RATE) - 1); // Use prescaler to set frequency if needed
LPC_TIM0->PR = (HAL_TIMER_RATE) / (HAL_STEPPER_TIMER_RATE) - 1; // Use prescaler to set frequency if needed
SBI(LPC_SC->PCONP, 2); // power on timer1
LPC_TIM1->PR = ((HAL_TIMER_RATE / 1000000) - 1);
LPC_TIM1->PR = (HAL_TIMER_RATE) / 1000000 - 1;
}
void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
switch (timer_num) {
case 0:
LPC_TIM0->MCR = 3; // Match on MR0, reset on MR0
LPC_TIM0->MR0 = (uint32_t)(HAL_STEPPER_TIMER_RATE / frequency); // Match value (period) to set frequency
LPC_TIM0->MR0 = uint32_t(HAL_STEPPER_TIMER_RATE) / frequency; // Match value (period) to set frequency
LPC_TIM0->TCR = _BV(0); // enable
break;
case 1:
LPC_TIM1->MCR = 3;
LPC_TIM1->MR0 = (uint32_t)(HAL_TEMP_TIMER_RATE / frequency);;
LPC_TIM1->MR0 = uint32_t(HAL_TEMP_TIMER_RATE) / frequency;
LPC_TIM1->TCR = _BV(0);
break;
default: break;