Added adc and uart
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4 changed files with 193 additions and 0 deletions
27
driver-algu/inc/UART.h
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27
driver-algu/inc/UART.h
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#ifndef UART_H
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#define UART_H
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#include "stm32f10x.h"
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typedef struct {
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USART_TypeDef * UART;
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unsigned int BaudRate;
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unsigned char Wlengh;
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unsigned char Wparity;
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unsigned char Wstop;
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}MyUART_Struct_Typedef;
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#define parity_none 0x0
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#define parity_even 0x1
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#define parity_odd 0x2
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#define Wlengh8 0x0
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#define Wlengh9 0X1
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#define stop1b 0x0
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#define stop2b 0x2
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void MyUART_Init(MyUART_Struct_Typedef * UARTStructPtr);
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void USART1_IRQHandler(void);
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void USART2_IRQHandler(void);
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void USART3_IRQHandler(void);
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char MyUART_Read(MyUART_Struct_Typedef * UARTStructPtr);
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#endif
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91
driver-algu/src/UART.c
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driver-algu/src/UART.c
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#include "UART.h"
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#include "gpio.h"
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//faire GPIO
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char data1 = 0x00;
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char data2 = 0x00;
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char data3 = 0x00;
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void MyUART_Init(MyUART_Struct_Typedef * UARTStructPtr){
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if (UARTStructPtr->UART == USART1)
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RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
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if (UARTStructPtr->UART == USART2)
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RCC->APB2ENR |= RCC_APB1ENR_USART2EN;
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if (UARTStructPtr->UART == USART3)
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RCC->APB2ENR |= RCC_APB1ENR_USART3EN;
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UARTStructPtr->UART->BRR = 72000000/(UARTStructPtr->BaudRate);
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UARTStructPtr->UART->CR1 |= ((UARTStructPtr->Wlengh)<<12);
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UARTStructPtr->UART->CR1 |= (0x1<<10);
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if(UARTStructPtr->Wparity == parity_none)
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UARTStructPtr->UART->CR1 &= ~(0x1<<10);
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if(UARTStructPtr->Wparity == parity_odd)
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UARTStructPtr->UART->CR1 |= (0x1<<9);
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if(UARTStructPtr->Wparity == parity_even)
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UARTStructPtr->UART->CR1 &= ~(0x1<<9);
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if(UARTStructPtr->Wstop == stop1b)
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UARTStructPtr->UART->CR2 &= ~(0x3<<12);
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if(UARTStructPtr->Wstop == stop2b){
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UARTStructPtr->UART->CR2 &= ~(0x3<<12);
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UARTStructPtr->UART->CR2 |= (0x1<<13);
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}
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UARTStructPtr->UART->CR1 |= (USART_CR1_TE | USART_CR1_RE | USART_CR1_UE | USART_CR1_RXNEIE);
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NVIC_EnableIRQ(USART1_IRQn);
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}
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void USART1_IRQHandler(void)
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{
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// Check if receive data register not empty
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if(USART1->SR & USART_SR_RXNE)
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{
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data1 = USART1->DR; // read received data
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// do something with received data
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}
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}
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void USART2_IRQHandler(void)
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{
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// Check if receive data register not empty
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if(USART2->SR & USART_SR_RXNE)
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{
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data2 = USART2->DR; // read received data
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// do something with received data
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}
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}
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void USART3_IRQHandler(void)
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{
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// Check if receive data register not empty
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if(USART3->SR & USART_SR_RXNE)
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{
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data3 = USART3->DR; // read received data
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// do something with received data
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}
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}
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char MyUART_Read(MyUART_Struct_Typedef * UARTStructPtr)
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{
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if(UARTStructPtr->UART == USART1)
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return data1;
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else if(UARTStructPtr->UART == USART2)
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return data2;
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else if(UARTStructPtr->UART == USART3)
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return data3;
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else
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return 0xFF;
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}
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/* exemple utilisation fonction :
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UART1.UART = USART1; // choix UART (USART1, USART2, USART3)
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UART1.BaudRate = 9600; // Vitesse de communication MAX 118200
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UART1.Wlengh = Wlengh8; // longeur du mot (Wlengh8 ,Wlengh9)
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UART1.Wparity = parity_even; // parité (parity_even, parity_odd, parity_none)
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UART1.Wstop = stop1b; // nombre bit de stop (stop1b, stop2b)
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MyUART_Init(&UART1); // initialisation
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*/
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44
driver-siyo/adcdriver.c
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44
driver-siyo/adcdriver.c
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#include "adcdriver.h"
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void (* pFncADC) (void); /* déclaration d’un pointeur de fonction */
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void MyADC_Init_Periph (void (* ptrFonction)(void))
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{
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pFncADC = ptrFonction; /* affectation du pointeur */
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}
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void MyADC_Init(MyADC_Struct_TypeDef * ADCStructPtr)
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{
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RCC->CFGR |= RCC_CFGR_ADCPRE_1; // ADC Prescaler : divided by 6 -> 72MHz to 12MHz
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RCC->APB2ENR |= RCC_APB2ENR_ADC1EN; //We activate the clock first
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if(ADCStructPtr->channel < 10) //Cycle and channel selection -> permet de regler en fonction de la résistance donnée
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{
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ADCStructPtr->ADC->SMPR2 |= (ADCStructPtr->cycle<<(ADCStructPtr->channel*3)); //Channel < 10
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}
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else {
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ADCStructPtr->ADC->SMPR1 |= (ADCStructPtr->cycle<<((ADCStructPtr->channel-10)*3)); //Channel > 10
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}
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ADCStructPtr->ADC->SQR1 &= ADC_SQR1_L; //Channel sequence length -> 1 conversion (0000)
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ADCStructPtr->ADC->SQR3 |= ADCStructPtr->channel; //Sequence Reader, seulement le SQ1 est lu dans notre cas, nous associons un channel à ce dernier.
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ADCStructPtr->ADC->CR2 |= ADC_CR2_EXTTRIG; //Activation du trigger externe
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ADCStructPtr->ADC->CR2 |= ADC_CR2_EXTSEL; //Event externe choisie : SWSTART
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MyADC_ActiveIT(ADCStructPtr->ADC,0);
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ADCStructPtr->ADC->CR2 |= ADC_CR2_ADON; //Init l'ADC
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MyADC_Base_Start(ADCStructPtr->ADC); //Debut du premier ADC
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}
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void MyADC_ActiveIT(ADC_TypeDef * ADC, uint8_t Prio)
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{
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ADC->CR1 |= ADC_CR1_EOCIE; //Interruption active
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NVIC->IP[ADC1_2_IRQn] |= (Prio << 0x4); //Prio de l'interruption (p.197 manuel reference RM0008 pour ADC1_IRQn)
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NVIC->ISER[0] |= (0x1<<ADC1_2_IRQn); //Active l'interruption au niveau NVIC (p.119 manuel programming pour ISER[0])
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}
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void ADC1_2_IRQHandler(void)
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{
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if (pFncADC != 0)
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(*pFncADC) (); /* appel indirect de la fonction */
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MyADC_Base_Start(ADC1);
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ADC1->SR &= ~ADC_SR_EOC; //Prochaine lecture pouvant être effectuée.
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}
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31
driver-siyo/adcdriver.h
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31
driver-siyo/adcdriver.h
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#ifndef ADCDRIVER_H
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#define ADCDRIVER_H
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#include "stm32f10x.h"
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#include "gpiodriver.h"
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typedef enum{
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cycles1d5 = 0b000,
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cycles7d5 = 0b001,
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cycles13d5 = 0b010,
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cycles28d5 = 0b011,
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cycles41d5 = 0b100,
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cycles55d5 = 0b101,
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cycles71d5 = 0b110,
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cycles239d5 = 0b111
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} MyADC_Cycle_t;
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typedef struct
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{
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ADC_TypeDef * ADC; //ADC 1 or 2
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uint8_t channel; //channel 0 -> 17
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MyADC_Cycle_t cycle; //channel cycle
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} MyADC_Struct_TypeDef;
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void MyADC_Init(MyADC_Struct_TypeDef * ADCStructPtr);
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void MyADC_ActiveIT(ADC_TypeDef * ADC, uint8_t Prio);
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void MyADC_Init_Periph (void (* ptrFonction)(void));
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MyGPIO_Struct_TypeDef GPIOFromADC(MyADC_Struct_TypeDef ADC);
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#define MyADC_Base_Start(ADC) (ADC->CR2 |= ADC_CR2_SWSTART)
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#endif
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