61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
#include "MyGirouette.h"
|
|
#include "Driver_GPIO.h"
|
|
#include "MyTimer.h"
|
|
|
|
int x = 0;
|
|
|
|
void EXTI0_IRQHandler(void) {
|
|
x++;
|
|
//EXTI->PR &= ~(1<<0) ;
|
|
TIM2 -> CNT = 0 ;
|
|
EXTI->PR |= (1<<0) ;
|
|
}
|
|
|
|
|
|
void Init_Girouette(void){
|
|
|
|
MyGPIO_Struct_TypeDef GPIOA0={
|
|
GPIOA,
|
|
0,
|
|
In_Floating
|
|
};
|
|
MyGPIO_Struct_TypeDef GPIOA1={
|
|
GPIOA,
|
|
1,
|
|
In_Floating
|
|
};
|
|
MyGPIO_Struct_TypeDef GPIOB0={
|
|
GPIOB,
|
|
0,
|
|
In_Floating
|
|
};
|
|
|
|
// Configuration du timer
|
|
MyTimer_Struct_TypeDef TIM;
|
|
TIM.Timer = TIM2;
|
|
TIM.ARR = 360*2;
|
|
TIM.PSC = 0;
|
|
|
|
MyTimer_Base_Init(&TIM);
|
|
|
|
TIM2->CCMR1 |= 0x1 << 0; //CH1
|
|
TIM2->CCMR1 |= 0x1 << 8; //CH2
|
|
|
|
TIM2->SMCR |= 0x1 << 0; // Capture Mode : 1 => seulement les fronts montants 2 => seulement les fronts descendants 3 => les 2
|
|
TIM2->CCMR1 |= 0x1 << 2;
|
|
// 0 Reset
|
|
NVIC->ISER[0] |= 1 << 6;
|
|
NVIC->IP[6] = 1<<4;
|
|
MyGPIO_Init(&GPIOB0);
|
|
RCC->APB2ENR |= RCC_APB2ENR_AFIOEN ;
|
|
AFIO->EXTICR[0] |= 0x0001; // PB0 AFIO
|
|
EXTI->RTSR |= 1 <<0 ; // rising
|
|
EXTI->IMR |= 1<<0 ; //mask
|
|
|
|
|
|
MyGPIO_Init(&GPIOA0);
|
|
MyGPIO_Init(&GPIOA1);
|
|
MyTimer_Base_Start(TIM2);
|
|
}
|
|
|
|
uint16_t Get_Angle(void){return (TIM2 -> CNT)/2;}
|