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74
Drivers/Driver_GPIO.c
Normal file
74
Drivers/Driver_GPIO.c
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#include "Driver_GPIO.h"
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void MyGPIO_Activate(int nb_GPIO) {
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//activer la clock du GPIO donné
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RCC->APB2ENR |= (0x01 << (nb_GPIO +1)) ;
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//RCC->APB2ENR |= (0x01 << 2 | 0x01 << 3 | 0x01 << 4) ;
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}
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/*
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void MyGPIO_Desactivate(int nb_GPIO) {
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//désactiver le GPIO donné
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RCC->APB2ENR &= ~(0x01 << (nb_GPIO +1)) ;
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}*/
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//la structure est déjà remplie
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void MyGPIO_Init(MyGPIO_Struct_TypeDef * GPIOStructPtr) {
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//màj crl si on veut un pull up ou pull down
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//on reset la conf
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if(GPIOStructPtr->GPIO_Pin > 7){
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GPIOStructPtr->GPIO->CRH &= ~(0xF << ((GPIOStructPtr->GPIO_Pin*4) - (8*4)));
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//on met la bonne conf
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if (GPIOStructPtr->GPIO_Conf == In_PullUp) {
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//on est en pull up -> on met à 1 par défaut
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GPIOStructPtr->GPIO->CRH |= (In_PullDown << ((GPIOStructPtr->GPIO_Pin*4) - (8*4)));
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MyGPIO_Set(GPIOStructPtr->GPIO, GPIOStructPtr->GPIO_Pin);
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}
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else {
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GPIOStructPtr->GPIO->CRH |= (GPIOStructPtr->GPIO_Conf << ((GPIOStructPtr->GPIO_Pin*4) - (8*4)));
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}
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}
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else {
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GPIOStructPtr->GPIO->CRL &= ~(0xF << (GPIOStructPtr->GPIO_Pin*4));
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//on met la bonne conf
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if (GPIOStructPtr->GPIO_Conf == In_PullUp) {
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//on est en pull up -> on met à 1 par défaut
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GPIOStructPtr->GPIO->CRL |= (In_PullDown << (GPIOStructPtr->GPIO_Pin*4));
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MyGPIO_Set(GPIOStructPtr->GPIO, GPIOStructPtr->GPIO_Pin);
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}
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else {
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GPIOStructPtr->GPIO->CRL |= (GPIOStructPtr->GPIO_Conf << (GPIOStructPtr->GPIO_Pin * 4));
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}
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}
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}
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int MyGPIO_Read(GPIO_TypeDef * GPIO, char GPIO_Pin) {
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return (GPIO->IDR & (1 << GPIO_Pin)) ;
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}
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void MyGPIO_Set(GPIO_TypeDef * GPIO, char GPIO_Pin){
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//GPIO->ODR |= (1 << GPIO_Pin);
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GPIO->BSRR = (1 << GPIO_Pin) ;
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}
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void MyGPIO_Reset(GPIO_TypeDef * GPIO, char GPIO_Pin) {
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//GPIO->ODR &= ~(1 << GPIO_Pin);
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//d'après la data sheet, il faut écrire dans la partie des bits compris entre 16 et 31
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GPIO->BSRR = (1 << (GPIO_Pin + 16)) ;
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}
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void MyGPIO_Toggle(GPIO_TypeDef * GPIO, char GPIO_Pin){
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//voir si il y a une meilleur manière
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if (GPIO->ODR & (1 << GPIO_Pin)) {
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//dans ce cas c'est activé donc on le désactive
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MyGPIO_Reset(GPIO, GPIO_Pin);
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}
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else {
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//c'était désactivé donc on l'active
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MyGPIO_Set(GPIO, GPIO_Pin);
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}
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}
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29
Drivers/Driver_GPIO.h
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29
Drivers/Driver_GPIO.h
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#ifndef MYGPIO_H
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#define MYGPIO_H
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#include "stm32f10x.h"
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typedef struct {
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GPIO_TypeDef * GPIO ;
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char GPIO_Pin ;
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char GPIO_Conf ;
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} MyGPIO_Struct_TypeDef ;
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#define In_Floating 0x4
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#define In_PullDown 0x8
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#define In_PullUp 0x9 // on le définit nous même
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#define In_Analog 0x0
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#define Out_Ppull 0x2
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#define Out_OD 0x6
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#define AltOut_Ppull 0xA
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#define AltOut_OD 0xE
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void MyGPIO_Init(MyGPIO_Struct_TypeDef * GPIOStructPtr);
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//renvoie 0 ou autre chose différent de 0
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int MyGPIO_Read(GPIO_TypeDef * GPIO, char GPIO_Pin) ;
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void MyGPIO_Set(GPIO_TypeDef * GPIO, char GPIO_Pin);
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void MyGPIO_Reset(GPIO_TypeDef * GPIO, char GPIO_Pin);
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void MyGPIO_Toggle(GPIO_TypeDef * GPIO, char GPIO_Pin);
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void MyGPIO_Activate(int nb_GPIO) ;
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//void MyGPIO_Desactivate(int nb_GPIO) ;
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#endif
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144
Drivers/Driver_TIMER.c
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144
Drivers/Driver_TIMER.c
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#include "Driver_TIMER.h"
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//réservation d'un espace mémoire pour un pointeur de fonction associé à chacun des timers
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void (* IT_function_TIM1) (void) = 0x0;
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void (* IT_function_TIM2) (void) = 0x0;
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void (* IT_function_TIM3) (void) = 0x0;
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void (* IT_function_TIM4) (void) = 0x0;
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void MyTimer_Base_Init(MyTimer_Struct_TypeDef * Timer) {
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Timer -> Timer -> ARR = Timer -> ARR -1;
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Timer -> Timer -> PSC = Timer -> PSC -1;
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}
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void Activate_TIM(int i) {
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if (i==1) {
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//le timer1 est sur apb2enr
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RCC-> APB2ENR |= 0x01 << 11 ;
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}
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else {
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//les autres timers sont sur apb1enr
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RCC-> APB1ENR |= 0x01 << (i-2) ;
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}
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}
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//////////////////////////////////////////////////////////
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//-----------------Partie interruptions-----------------//
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//////////////////////////////////////////////////////////
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void MyTimer_Active_IT ( TIM_TypeDef * Timer , char Prio , void (* IT_function) (void)) {
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//active l'interruption sur timer et pointe vers la fonction IT_function avec la priorité prio
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//"Trigger DMA request enabled"
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Timer -> DIER |= 1;
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if (Timer == TIM1) {
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NVIC_EnableIRQ(TIM1_TRG_COM_IRQn);
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NVIC_SetPriority(TIM1_TRG_COM_IRQn, Prio);
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IT_function_TIM1 = IT_function ;
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}
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else if (Timer == TIM2) {
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NVIC_EnableIRQ(TIM2_IRQn);
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NVIC_SetPriority(TIM2_IRQn, Prio);
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IT_function_TIM2 = IT_function ;
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}
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else if (Timer == TIM3) {
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NVIC_EnableIRQ(TIM3_IRQn);
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NVIC_SetPriority(TIM3_IRQn, Prio);
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IT_function_TIM3 = IT_function ;
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}
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else if (Timer == TIM4) {
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NVIC_EnableIRQ(TIM4_IRQn);
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NVIC_SetPriority(TIM4_IRQn, Prio);
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IT_function_TIM4 = IT_function ;
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}
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}
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void TIM1_TRG_COM_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM1->SR &= ~1;
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if (IT_function_TIM1)
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(* IT_function_TIM1) ();
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}
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void TIM2_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM2->SR &= ~1;
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if(IT_function_TIM2)
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(* IT_function_TIM2) ();
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}
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void TIM3_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM3->SR &= ~1;
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if(IT_function_TIM3)
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(* IT_function_TIM3) ();
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}
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void TIM4_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM4->SR &= ~1;
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if(IT_function_TIM4)
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(* IT_function_TIM4) ();
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}
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//////////////////////////////////////////////////////////
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//----------------------Partie PWM----------------------//
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//////////////////////////////////////////////////////////
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void MyTimer_PWM(TIM_TypeDef * Timer, char Channel) {
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if (Timer == TIM1) {
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TIM1 -> BDTR |= 1 << 15 ;
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}
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switch (Channel) {
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case 1 :
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//On choisit le mode 1
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//on écrit donc '110' dans le registre OC1M de TIM1_CCMR1
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Timer->CCMR1 &= ~TIM_CCMR1_OC1M_0;
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Timer->CCMR1 |= TIM_CCMR1_OC1M_1| TIM_CCMR1_OC1M_2;
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//On autorise le registre de preload correspondant en écrivant 1 dans OC1PE
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Timer->CCMR1 |= TIM_CCMR1_OC1PE ;
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//On autorise la sortie OCx en mettant à 1 le registre CCxE
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Timer->CCER |= TIM_CCER_CC1E;
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break ;
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case 2 :
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Timer->CCMR1 &= ~TIM_CCMR1_OC2M_0;
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Timer->CCMR1 |= TIM_CCMR1_OC2M_1| TIM_CCMR1_OC2M_2;
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Timer->CCMR1 |= TIM_CCMR1_OC2PE ;
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Timer->CCER |= TIM_CCER_CC2E;
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break ;
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case 3 :
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Timer->CCMR2 &= ~TIM_CCMR2_OC3M_0;
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Timer->CCMR2 |= TIM_CCMR2_OC3M_1| TIM_CCMR2_OC3M_2;
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Timer->CCMR2 |= TIM_CCMR2_OC3PE ;
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Timer->CCER |= TIM_CCER_CC3E;
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break ;
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case 4 :
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Timer->CCMR2 &= ~TIM_CCMR2_OC4M_0;
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Timer->CCMR2 |= TIM_CCMR2_OC4M_1| TIM_CCMR2_OC4M_2;
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Timer->CCMR2 |= TIM_CCMR2_OC4PE ;
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Timer->CCER |= TIM_CCER_CC4E;
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break ;
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}
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//on autorise le registre de auto-reload preload en écrivant 1 dans le registre ARPE de CR1
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Timer -> CR1 |= TIM_CR1_ARPE ;
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}
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void MyTimer_PWM_set_cycle(TIM_TypeDef * Timer, float rapport, char channel) {
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switch (channel) {
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case 1 :
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Timer->CCR1 = (int) (Timer -> ARR * rapport) ;
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break ;
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case 2 :
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Timer->CCR2 = (int) (Timer -> ARR * rapport) ;
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break ;
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case 3 :
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Timer->CCR3 = (int) (Timer -> ARR * rapport) ;
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break ;
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case 4 :
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Timer->CCR4 = (int) (Timer -> ARR * rapport) ;
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break ;
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}
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}
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64
Drivers/Driver_TIMER.h
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64
Drivers/Driver_TIMER.h
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#ifndef MYTIMER_H
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#define MYTIMER_H
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#include "stm32f10x.h"
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typedef struct {
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TIM_TypeDef * Timer ;
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uint16_t ARR ;
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uint16_t PSC ;
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} MyTimer_Struct_TypeDef ;
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/*
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*****************************************************************************************
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* @brief
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* @param -> Paramètre sous forme d’une structure (son adresse) contenant les informations de base
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* @Note -> Fonction à lancer systématiquement avant d’aller plus en détail dans les conf plus fines
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***********************************************************************************************
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*/
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void MyTimer_Base_Init(MyTimer_Struct_TypeDef * Timer) ;
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void Activate_TIM(int) ;
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/*
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**************************************************************************************************
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* @brief
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* @param : - TIM_TypeDef * Timer : Timer concerné
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- char Prio : de 0 a 15
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* @Note : La fonction MyTimer_Base_Init doit avoir été lancée au préalable
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**************************************************************************************************
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*/
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void MyTimer_Active_IT ( TIM_TypeDef * , char , void (*) (void)) ;
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void TIM1_TRG_COM_IRQHandler(void) ;
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void TIM2_IRQHandler(void) ;
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void TIM3_IRQHandler(void) ;
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void TIM4_IRQHandler(void) ;
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/*
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**************************************************************************************************
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* @brief
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* @param : - TIM_TypeDef * Timer : Timer concerné
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* - char Channel : canal concerné, de 1 a 4
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* @Note : Active le channel spécifié sur le timer spécifié, la gestion de la configuration I/O n’est
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* pas faite dans cette fonction ni le réglage de la période de la PWM (ARR, PSC)
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**************************************************************************************************
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*/
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void MyTimer_PWM( TIM_TypeDef *, char) ;
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/*
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**************************************************************************************************
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* @brief
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* @param : - TIM_TypeDef * Timer : Timer concerné
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* - float rapport : rapport cyclique, de 0 à 1
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* - char Channel : canal concerné, de 1 a 4
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**************************************************************************************************
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*/
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void MyTimer_PWM_set_cycle(TIM_TypeDef *, float, char) ;
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#define MyTimer_Base_Start(Timer) (Timer->CR1 |= 0x1)
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#define MyTimer_Base_Stop(Timer) (Timer->CR1 &= ~0x1)
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#endif
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