106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
#include "stm32f10x.h"
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#include <stdlib.h>
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#include "../Include/GPIO.h"
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int ChercherEtat(GPIO_TypeDef * GPIO, int pin){ // Trouvons la valeur d'un broche sur un certain GPIO
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return((GPIO -> IDR & (0x01 << pin)));
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}
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void ResetBroche(uint32_t GPIO, int Broche){ // Mettre à zero d'un certain broche d'un certain GPIO
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GPIO -> BSRR |= BS Broche;
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}
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void SetBroche(uint32_t GPIO, int Broche){ // Mettre à zero d'un certain broche d'un certain GPIO
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GPIO -> BSRR |= BSBroche << 16;
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}
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void TogglePin(GPIO_TypeDef*GPIO, int Broche){ // Inverser la valueur de broche sur GPIO
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GPIO -> ODR = GPIO -> ODR ^ (0x1 << Broche);
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}
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void ConfigureGPIO(uint32_t GPIO, int Broche, int IO, char * Mode){ // Mettre un broche d'un GPIO sur un mode
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// Possble de améliorer avec des int à la place de string
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//Start clock pour les GPIO concernés
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if(GPIO == GPIOA){
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RCC -> APB2ENR |= RCC_APB2ENR_IOPAEN;
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}
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else if(GPIO == GPIOB){
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RCC -> APB2ENR |= RCC_APB2ENR_IOPBEN;
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}
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else if(GPIO == GPIOC){
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RCC -> APB2ENR |= RCC_APB2ENR_IOPCEN;
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}
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else if(GPIO == GPIOD){
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RCC -> APB2ENR |= RCC_APB2ENR_IOPDEN;
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}
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// Cas d'u CRL, broche 0 à 7
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if (Broche < 8) {
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GPIO -> CRL &= ~(0x1 << Broche *4) & ~(0x1 << Broche *4 +1) & ~(0x1 << Broche *4 + 2) & ~(0x1 << Broche *4 + 3); // Clean bits
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if (IO == 0){ //Input
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if (strcmp(Mode,"Floating")) {
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GPIO -> CRL |= (0x1 << Broche *4) | (0x1 << Broche * 4 + 1);
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}
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else if (strcmp(Mode,"Pull-Up") || strcmp(Mode,"Pull-Down")){
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GPIO -> CRL |= (0x1 << 6*4 + 1);
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}
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else {
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return; // Mode invalid
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}
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}
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else if ( IO < 5) { // Output
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GPIO -> CRL |= (0xIO << Broche * 4 + 2); // Frequency mode
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if (strcmp(Mode, "Open-Drain")){
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GPIO -> CRL |= (0x1 << Broche *4);
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}
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else if (strcmp(Mode, "Push-Pull Alterne")){
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GPIO -> CRL |= (0x1 << Broche *4 + 1);
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RCC->APB2ENR |= RCC_APB2ENR_AFIOEN; // Alternate Function I/O clock enable GPIOA
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}
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else if (strcmp(Mode, "Open-Drain Alterne")){
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GPIO -> CRL |= (0x1 << Broche * 4) | (0x1 << Broche * 4 + 1);
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}
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else {
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return; // Mode invalid
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}
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}
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else{
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return;
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}
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}
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else if (Broche < 16) {
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GPIO -> CRH &= ~(0x1 << Broche *4) & ~(0x1 << Broche *4 +1) & ~(0x1 << Broche *4 + 2) & ~(0x1 << Broche *4 + 3); // Clean bits
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if (IO == 0){ //Input
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if (strcmp(Mode,"Floating")) {
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GPIO -> CRH |= (0x1 << Broche *4) | (0x1 << Broche * 4 + 1);
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}
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else if (strcmp(Mode,"Pull-Up") || strcmp(Mode,"Pull-Down")){
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GPIO -> CRH |= (0x1 << 6*4 + 1);
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}
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else {
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return; // Mode invalid or doesn't exist
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}
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}
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else if ( IO < 5) { // Output
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GPIO -> CRH |= (0xIO << Broche * 4 + 2); // Frequency mode
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if (strcmp(Mode, "Open-Drain")){
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GPIO -> CRH |= (0x1 << Broche *4);
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}
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else if (strcmp(Mode, "Push-Pull Alterne")){
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GPIO -> CRH |= (0x1 << Broche *4 + 1);
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}
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else if (strcmp(Mode, "Open-Drain Alterne")){
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GPIO -> CRH |= (0x1 << Broche * 4) | (0x1 << Broche * 4 + 1);
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}
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else {
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return; // Mode invalid or doesn't exits
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}
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}
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else{
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return; // IO invalid
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}
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}
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else{
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return; // Pin number invalid
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}
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}
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