Diff: INIT_HW/INIT_HW.cpp

Revision:

11:82d8768d7351

Parent:

2:a1c0a37df760

Child:

15:bd0d12728506

--- a/INIT_HW/INIT_HW.cpp	Fri Aug 23 01:02:32 2019 +0000
+++ b/INIT_HW/INIT_HW.cpp	Fri Aug 23 12:28:08 2019 +0000
@@ -52,3 +52,25 @@
     TIM4->CR1 |= TIM_CR1_CEN;                                   // enable TIM4
     
 }
+
+void Init_TMR3(){
+    RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;                         // enable TIM3 clock
+    
+     //ISR Setup     
+    
+    NVIC_EnableIRQ(TIM3_IRQn);                         //Enable TIM3 IRQ
+
+    TIM3->DIER |= TIM_DIER_UIE;                                 // enable update interrupt
+    TIM3->CR1 = 0x40;                                           // CMS = 10, interrupt only when counting up // Center-aligned mode
+    TIM3->CR1 |= TIM_CR1_UDIS;
+    TIM3->CR1 |= TIM_CR1_ARPE;                                  // autoreload on, 
+    TIM3->RCR |= 0x001;                                         // update event once per up/down count of TIM3 
+    TIM3->EGR |= TIM_EGR_UG;
+ 
+    //PWM Setup
+
+    TIM3->PSC = 0x0;                                            // no prescaler, timer counts up in sync with the peripheral clock
+    TIM3->ARR = TMR3_COUNT;                                          // set auto reload, 40 khz
+    TIM3->CCER |= ~(TIM_CCER_CC1NP);                            // Interupt when low side is on.
+    TIM3->CR1 |= TIM_CR1_CEN;                                   // enable TIM4
+}
\ No newline at end of file