added char concat function

added fatfs

RTC/Core/Src/main.c

@@ -19,6 +19,7 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
+#include "fatfs.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
@@ -26,6 +27,8 @@
 #include "stdbool.h"
 #include "string.h"
 #include <stdio.h>
+#include "fatfs_sd.h"
+#include <stdarg.h>
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -44,6 +47,8 @@
 /* USER CODE END PM */
 
 /* Private variables ---------------------------------------------------------*/
+SPI_HandleTypeDef hspi1;
+ADC_HandleTypeDef hadc;
 RTC_HandleTypeDef hrtc;
 UART_HandleTypeDef huart2;
 
@@ -53,7 +58,6 @@ RTC_DateTypeDef sDate;
 RTC_AlarmTypeDef sAlarmA, sAlarmB;
 static volatile uint16_t gLastError;
 static volatile bool gButtonPressed = FALSE;
-static volatile float sunWindow;
 
 //Nuremberg coordinates
 int latitude_nbg = 49;
@@ -92,6 +96,20 @@ typedef struct {
 
 timeStamp time;
 
+// SD CARD Variables
+FATFS fs;
+FATFS *pfs;
+FIL fil;
+FRESULT fres;
+DWORD fre_clust;
+uint32_t totalSpace, freeSpace;
+char buffer[100];
+uint16_t AD_RES;
+int num;
+
+//Variable name for txt file
+char txtVar[19];
+
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -99,6 +117,8 @@ void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
 static void MX_USART2_UART_Init(void);
 static void MX_RTC_Init(void);
+static void MX_SPI1_Init(void);
+static void MX_ADC_Init(void);
 static void MyFlagInterruptHandler(void);
 void ButtonHandler(void);
 /* USER CODE BEGIN PFP */
@@ -443,17 +463,6 @@ void set_time_and_date(timeAndDate *timeanddate){
 	}
 }
 
-/*void setDate(timeAndDate *date){
-
-	if (HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN) == HAL_OK)
-	{
-		date->weekDay = sDate.WeekDay;
-		date->month = sDate.Month;
-		date->day = sDate.Date;
-		date->year = 2000 + sDate.Year;
-	}
-}*/
-
 int calc_interval_duration(timeAndDate *sunrise, timeAndDate *sunset){
 	int duration_h=0;
 	int duration_m=0;
@@ -469,6 +478,20 @@ int calc_interval_duration(timeAndDate *sunrise, timeAndDate *sunset){
 	return (duration_h * 60 + duration_m) / leapsFor180Deg;
 }
 
+char int_to_char_and_concat(int amount, char* separator, ...){
+	va_list argumentlist;
+	va_start(argumentlist, separator);
+	char str[200] = "";
+
+	while (amount--){
+		char arg = va_arg(argumentlist, char);
+		strcat(str, arg);
+		strcat(str, separator);
+	}
+
+	return str;
+}
+
 /* USER CODE END 0 */
 
 /**
@@ -501,9 +524,13 @@ int main(void)
   MX_GPIO_Init();
   MX_USART2_UART_Init();
   MX_RTC_Init();
+  MX_SPI1_Init();
+  MX_FATFS_Init();
+  MX_ADC_Init();
   /* USER CODE BEGIN 2 */
 
- //----- Init of the Motor control library
+  //######### Inits of the Motor control library #########
+
   /* Set the L6208 library to use 1 device */
   BSP_MotorControl_SetNbDevices(BSP_MOTOR_CONTROL_BOARD_ID_L6208, 1);
   BSP_MotorControl_Init(BSP_MOTOR_CONTROL_BOARD_ID_L6208, NULL);
@@ -523,6 +550,17 @@ int main(void)
   /* Disable the power bridges after initialization */
   BSP_MotorControl_CmdDisable(0);
 
+  //######### Mount SD-Card #########
+
+  fres = f_mount(&fs, "", 0);
+  if (fres == FR_OK) {
+    transmit_uart("SD card is mounted successfully!\r\n");
+  } else if (fres != FR_OK) {
+    transmit_uart("SD card is not mounted!\r\n");
+  }
+
+  //######### Variable inits #########
+
   timeAndDate sunrise, sunset, wakeUpTimeForStep, tomorrowsDate, initialDate;
   sunrise = sunset = wakeUpTimeForStep = tomorrowsDate = initialDate = (timeAndDate) {\
 	  0,
@@ -549,6 +587,8 @@ int main(void)
   while (1)
   {
 
+	  	//######### Motor settings and motor test #########
+
 		HAL_Delay(2000);
 
 		transmit_uart("Resetting motor position and calculating new dates and times.\r\n");