DS3231 STM32F1 Hal Kütüphanesi

ds3231.c dosyası

#include "ds3231.h"

//--------------------------------------
char str[100];
uint8_t data[256];
uint16_t size;
uint8_t readBuf[7];

char * days[] = {
    "Sun",
    "Mon",
    "Tue",
    "Wed",
    "Thr",
    "Fri",
    "Sat"
};

struct Calendar {
    uint8_t sec, min, hour, day, date, month, year;
}
calendar;

uint8_t BCD2DEC(uint8_t c) {
    uint8_t ch = ((c >> 4) * 10 + (0x0F & c));
    return ch;
}

uint8_t DEC2BCD(uint8_t c) {
    uint8_t ch = ((c / 10) << 4) | (c % 10);
    return ch;
}

//--------------------------------------
void DS3231_sendData(I2C_HandleTypeDef hi, uint8_t DEV_ADDR) {
    uint8_t writeBuf[1];
    writeBuf[0] = 0;
    while (HAL_I2C_Master_Transmit( & hi, (uint16_t) DEV_ADDR,
            (uint8_t * ) & writeBuf, sizeof(writeBuf), (uint32_t) 1000) != HAL_OK) {
        if (HAL_I2C_GetError( & hi) != HAL_I2C_ERROR_AF) {
            size = sprintf((char * ) data, "DS3231 write failed\n");
        }
    }
}
//--------------------------------------
void DS3231_setDate(I2C_HandleTypeDef hi, uint8_t DEV_ADDR) {
    uint8_t data[8];

    data[DS3231_CONTROL] = 0; // should be zero REGISTER SELECT from that will start
    data[DS3231_SECONDS] = calendar.sec; //sec
    data[DS3231_MINUTES] = calendar.min; //min
    data[DS3231_HOURS] = calendar.hour; //hour
    data[DS3231_DAY] = calendar.day; //day
    data[DS3231_YEAR] = calendar.year; //year
    data[DS3231_MONTH] = calendar.month; //month
    data[DS3231_DATE] = calendar.date; //date

    while (HAL_I2C_Master_Transmit( & hi, (uint16_t) DEV_ADDR, (uint8_t * ) & data,
            8, (uint32_t) 1000) != HAL_OK) {
        if (HAL_I2C_GetError( & hi) != HAL_I2C_ERROR_AF) {
            size = sprintf((char * ) data, "DS3231 write failed\n");

        }
    }
}
//--------------------------------------
uint8_t * I2C_ReadRawData(I2C_HandleTypeDef hi, uint8_t DEV_ADDR) {
    while (HAL_I2C_Master_Receive( & hi, (uint16_t) DEV_ADDR, (uint8_t * ) & readBuf,
            (uint16_t) 7, (uint32_t) 1000) != HAL_OK) {
        if (HAL_I2C_GetError( & hi) != HAL_I2C_ERROR_AF) {
            size = sprintf((char * ) data, "DS3231 read failed\n");
        }
    }
    return readBuf;
}

void I2C_ReadCalendarData(I2C_HandleTypeDef hi, uint8_t DEV_ADDR) {
    while (HAL_I2C_Master_Receive( & hi, (uint16_t) DEV_ADDR, (uint8_t * ) & readBuf,
            (uint16_t) 7, (uint32_t) 1000) != HAL_OK) {
        if (HAL_I2C_GetError( & hi) != HAL_I2C_ERROR_AF) {
            size = sprintf((char * ) data, "DS3231 read failed\n");
        }
    }
    calendar.sec = readBuf[0];
    calendar.min = readBuf[1];
    calendar.hour = readBuf[2];
    calendar.day = readBuf[3];
    calendar.date = readBuf[4];
    calendar.month = readBuf[5];
    calendar.year = readBuf[6];
}

char * retrnAsString(uint8_t data) {
    static char res[2];
    uint8_t tempVal = BCD2DEC(data);
    sprintf(res, "%c%c", ((tempVal / 10) % 10) + 0x30, (tempVal % 10) + 0x30);
    return res;
}
uint8_t readIntSeconds() {
    return calendar.sec;
}

char * readSeconds() {
    return retrnAsString(calendar.sec);
}

char * readMinutes() {
    return retrnAsString(calendar.min);
}

char * readHours() {
    return retrnAsString(calendar.hour);
}

// Day Pazartesi ->Pazar
char * readDay() {
    static char res[2];
    uint8_t tempVal = BCD2DEC(calendar.day);
    sprintf(res, "%c", (tempVal % 10) + 0x30);
    return res;
}

char * readDate() {
    return retrnAsString(calendar.date);
}

char * readMonth() {
    return retrnAsString(calendar.month);
}

char * readYear() {
    return retrnAsString(calendar.year);
}

void setSeconds(uint8_t sec) {

    calendar.sec = DEC2BCD(sec);
}

void setMinutes(uint8_t min) {
    calendar.min = DEC2BCD(min);
}

void setHour(uint8_t hour) {
    calendar.hour = DEC2BCD(hour);
}

void setDay(uint8_t day) {
    calendar.day = DEC2BCD(day);
}

void setDate(uint8_t date) {
    calendar.date = DEC2BCD(date);
}

void setMonth(uint8_t month) {
    calendar.month = DEC2BCD(month);
}

void setYear(uint8_t year) {
    calendar.year = DEC2BCD(year);
}

ds3231.h dosyası

#ifndef ds3231_H_
#define ds3231_H_

#include "stm32f1xx_hal.h"

/* Registers location */
#define DS3231_CONTROL    0
#define DS3231_SECONDS    1
#define DS3231_MINUTES    2
#define DS3231_HOURS     3
#define DS3231_DAY      4
#define DS3231_DATE      5
#define DS3231_MONTH     6
#define DS3231_YEAR      7

uint8_t BCD2DEC(uint8_t c);
uint8_t DEC2BCD(uint8_t c);
void DS3231_sendData(I2C_HandleTypeDef hi2, uint8_t DEV_ADDR);
void DS3231_setDate(I2C_HandleTypeDef hi2, uint8_t DEV_ADDR);
uint8_t * I2C_ReadRawData(I2C_HandleTypeDef hi2, uint8_t DEV_ADDR);
void I2C_ReadCalendarData(I2C_HandleTypeDef hi2, uint8_t DEV_ADDR);


char *readSeconds(void);
char *readMinutes(void);
char *readHours(void);
char *readDay(void);
char *readDate(void);
char *readMonth(void);
char *readYear(void);


void setSeconds(uint8_t sec);
void setMinutes(uint8_t min);
void setHour(uint8_t hour);
void setDay(uint8_t day);
void setDate(uint8_t date);
void setMonth(uint8_t month);
void setYear(uint8_t year);


/*
uint8_t readIntSeconds();
*/
#endif /* ds3231_H_ */

main.c

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file           : main.c
 * @brief          : Main program body
 ******************************************************************************
 ** This notice applies to any and all portions of this file
 * that are not between comment pairs USER CODE BEGIN and
 * USER CODE END. Other portions of this file, whether 
 * inserted by the user or by software development tools
 * are owned by their respective copyright owners.
 *
 * COPYRIGHT(c) 2019 STMicroelectronics
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *   1. Redistributions of source code must retain the above copyright notice,
 *      this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright notice,
 *      this list of conditions and the following disclaimer in the documentation
 *      and/or other materials provided with the distribution.
 *   3. Neither the name of STMicroelectronics nor the names of its contributors
 *      may be used to endorse or promote products derived from this software
 *      without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ******************************************************************************
 */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdlib.h"
#include "string.h"
#include "LCD.h"
#include "ds3231.h"


/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

    uint8_t ds3231Addr = (uint8_t) 0xD0;
    uint32_t saniye, dakika, saat;
 uint32_t gun, ay, yil;
    char line1[32],line2[32];

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
 SystemClock_Config();

  /* USER CODE BEGIN SysInit */
 

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_I2C1_Init();
  /* USER CODE BEGIN 2 */
 lcd_init(_LCD_4BIT, _LCD_FONT_5x8, _LCD_2LINE);
    lcd_print(1, 1, "  DS3231 RTC");
    HAL_Delay(500);

   // DS3231_sendData(hi2c1, ds3231Addr);
    
  //  I2C_ReadCalendarData(hi2c1, ds3231Addr);

    setSeconds(10);
    setMinutes(21);
    setHour(12);
 setDate(30);
 setMonth(7);
 setYear(19);
 
    DS3231_sendData(hi2c1, ds3231Addr);
 while (HAL_I2C_GetState( & hi2c1) != HAL_I2C_STATE_READY){}
    DS3231_setDate(hi2c1, ds3231Addr);

    lcd_clear();
    HAL_Delay(500);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
    while (1) {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
 DS3231_sendData(hi2c1, ds3231Addr);
 while (HAL_I2C_GetState( & hi2c1) != HAL_I2C_STATE_READY) {}
        //Read
    I2C_ReadCalendarData(hi2c1, ds3231Addr);        
        /*
    atoi komutu içerdigi string ifadeyi integera çevirir. 
    */
     
 saniye = atoi(readSeconds());
    dakika = atoi(readMinutes());
    saat = atoi(readHours());
     
        
 gun = atoi(readDate());
 ay  = atoi(readMonth());
 yil = atoi(readYear());
    
    sprintf(line1, "   %0.2u:%0.2u:%0.2u", saat, dakika, saniye);
 sprintf(line2, "   %0.2u/%0.2u/%0.2u", gun, ay, yil);
    lcd_print(1, 1, line1);
 lcd_print(2, 1, line2);
    HAL_Delay(250);

    }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /**Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C1_Init(void)
{

  /* USER CODE BEGIN I2C1_Init 0 */

  /* USER CODE END I2C1_Init 0 */

  /* USER CODE BEGIN I2C1_Init 1 */

  /* USER CODE END I2C1_Init 1 */
  hi2c1.Instance = I2C1;
  hi2c1.Init.ClockSpeed = 32768;
  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2C1_Init 2 */

  /* USER CODE END I2C1_Init 2 */

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, LCD_EN_Pin|LCD_RS_Pin|LCD_D4_Pin|LCD_D5_Pin 
                          |LCD_D6_Pin|LCD_D7_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pins : LCD_EN_Pin LCD_RS_Pin LCD_D4_Pin LCD_D5_Pin 
                           LCD_D6_Pin LCD_D7_Pin */
  GPIO_InitStruct.Pin = LCD_EN_Pin|LCD_RS_Pin|LCD_D4_Pin|LCD_D5_Pin 
                          |LCD_D6_Pin|LCD_D7_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
    /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/