手机网站建设与制作,湖南seo优化公司,网站做下cdn,陕西省建设厅三类人员报名网站STM32基于STM32CubeMX DMA EXTI读取DS1307数据✨申明#xff1a;本文章仅发表在CSDN网站#xff0c;任何其他网站#xff0c;未注明来源#xff0c;见此内容均为盗链和爬取#xff0c;请多多尊重和支持原创!#x1f341;对于文中所提供的相关资源链接将作不定期更换。 EXTI读取DS1307数据 ✨申明本文章仅发表在CSDN网站任何其他网站未注明来源见此内容均为盗链和爬取请多多尊重和支持原创!对于文中所提供的相关资源链接将作不定期更换。说明本人没有开通打赏功能谨防上当受骗DS1307 HAL外设驱动文件 https://github.com/lamik/DS1307_RTC_STM32_HAL 基于STM32CubeMX配置工程当然不局限与STM32其他型号的芯片的使用只要是stm32芯片都可以使用该源文件在任意一款STM32型号的单片机上进行驱动移植使用方便项目移植减少不必要的重复开发工作。 DS1307时钟模块 串口打印信息
功能说明 由于工程默认配置的外部中断引脚没有配置上下拉中断引脚输出浮空状态浮空状态认为是处于高电平一直处于触发状态个人使用的话可以配置为上下拉状态以及通过外部上下拉电阻将中断引脚至于一个确定电平状态然后通过上升沿或下降沿触发中断调用 I2C DMA数据接收这种用于主动方式来获取时间。 STM32CubeMX配置
使能I2C接口 开启DMA传输功能 具体参数配置
GPIO引脚EXTI 配置
引脚可以根据个人需求任意指定。
✅串口配置用于调试信息输出非必须项
✨如果只是读取DS1307数据作为其他时基来源可以不配置串口这里是用来查看读取ds1307数据所以启用串口功能。 以上配置可以根据个人需求进行引脚切换以及外设选择。 KEIL工程配置
usart.c文件中添加printf重映射并在Keil设置中勾选MicroLib选项。
#include stdio.h
/*可调用printf*/
int fputc(int ch,FILE *f)
{/*huart1指的是串口1如果用别的串口就修改数字*/HAL_UART_Transmit(huart1 , (uint8_t *)ch , 1 , 1000);return ch;
}
DS1307驱动文件
DS1307.c文件
/** DS1307.c** The MIT License.* Created on: 4.09.2019* Author: Mateusz Salamon* Contact: mateuszmsalamon.pl** Website: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/* GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL*/#include DS1307.hI2C_HandleTypeDef *hi2c_ds1307;uint8_t Ds1307Buffer[7];void DS1307_SetControlRegister(uint8_t Value)
{Value 0x93;// Put zeros where zero is needed 0b10010011HAL_I2C_Mem_Write(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_CONTROL, 1, Value, 1, DS1307_I2C_TIMEOUT);
}void DS1307_GetControlRegister(uint8_t *Value)
{HAL_I2C_Mem_Read(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_CONTROL, 1, Value, 1, DS1307_I2C_TIMEOUT);
}void WriteBitToControlRegister(uint8_t BitNumber, uint8_t Value)
{uint8_t tmp;if(Value1) Value 1;DS1307_GetControlRegister(tmp);tmp ~(1BitNumber);tmp | (ValueBitNumber);DS1307_SetControlRegister(tmp);
}
void DS1307_SQWEnable(uint8_t Enable)
{WriteBitToControlRegister(DS1307_CONTROL_SQUARE_WAVE_ENABLE, Enable);
}void DS1307_SQWRateSelect(uint8_t Rate)
{uint8_t tmp;if(Rate3) Rate 3;DS1307_GetControlRegister(tmp);tmp ~(3DS1307_CONTROL_RATE_SELECT_0);tmp | (RateDS1307_CONTROL_RATE_SELECT_0);DS1307_SetControlRegister(tmp);
}void DS1307_OutputControl(uint8_t Enable)
{WriteBitToControlRegister(DS1307_CONTROL_OUTPUT_CONTROL, Enable);
}void DS1307_ClockHalt(uint8_t Enable)
{uint8_t tmp;if(Enable1) Enable 1;HAL_I2C_Mem_Read(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_SECONDS, 1, tmp, 1, DS1307_I2C_TIMEOUT);tmp ~(17);tmp | (Enable7);HAL_I2C_Mem_Write(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_SECONDS, 1, tmp, 1, DS1307_I2C_TIMEOUT);
}uint8_t bcd2dec(uint8_t BCD)
{return (((BCD 0xF0)4) *10) (BCD 0xF);
}uint8_t dec2bcd(uint8_t DEC)
{return ((DEC / 10)4) (DEC % 10);
}int dayofweek(int Day, int Month, int Year)
{int Y, C, M, N, D;M 1 (9 Month) % 12;Y Year - (M 10);C Y / 100;D Y % 100;N ((13 * M - 1) / 5 D D / 4 6 * C Day 5) % 7;return (7 N) % 7;
}void DS1307_SetDateTime(RTCDateTime *DateTime)
{uint8_t tmp[7];if(DateTime-Second 59) DateTime-Second 59;if(DateTime-Minute 59) DateTime-Minute 59;if(DateTime-Hour 23) DateTime-Hour 23;if(DateTime-Day 31) DateTime-Day 31;if(DateTime-Month 12) DateTime-Month 12;if(DateTime-Year 2099) DateTime-Year 2099;tmp[0] dec2bcd(DateTime-Second);tmp[1] dec2bcd(DateTime-Minute);tmp[2] dec2bcd(DateTime-Hour);tmp[3] dayofweek(DateTime-Day, DateTime-Month, DateTime-Year) 1;tmp[4] dec2bcd(DateTime-Day);tmp[5] dec2bcd(DateTime-Month);tmp[6] dec2bcd(DateTime-Year - 2000);HAL_I2C_Mem_Write(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_TIME, 1, tmp, 7, DS1307_I2C_TIMEOUT);
}void DS1307_CalculateDateTime(RTCDateTime *DateTime)
{DateTime-Second bcd2dec(Ds1307Buffer[0]);DateTime-Minute bcd2dec(Ds1307Buffer[1]);DateTime-Hour bcd2dec(Ds1307Buffer[2] 0x3F);DateTime-DayOfWeek Ds1307Buffer[3];DateTime-Day bcd2dec(Ds1307Buffer[4]);DateTime-Month bcd2dec(Ds1307Buffer[5] 0x1F);DateTime-Year 2000 bcd2dec(Ds1307Buffer[6]);
}#ifdef DS1307_USE_DMA
void DS1307_ReceiveDateTimeDMA(void)
{HAL_I2C_Mem_Read_DMA(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_TIME, 1, Ds1307Buffer, 7);
}
#else
void DS1307_GetDateTime(RTCDateTime *DateTime)
{HAL_I2C_Mem_Read(hi2c_ds1307, DS1307_ADDRESS, DS1307_REG_TIME, 1, Ds1307Buffer, 7, DS1307_I2C_TIMEOUT);DS1307_CalculateDateTime(DateTime);
}
#endifvoid DS1307_ReadRAM(uint8_t Address, uint8_t *Value, uint8_t Length)
{if((Address DS1307_REG_RAM_START) || (Address DS1307_REG_RAM_END)) return;if((Address Length DS1307_REG_RAM_START) DS1307_REG_RAM_END) return;HAL_I2C_Mem_Read(hi2c_ds1307, DS1307_ADDRESS, Address, 1, Value, Length, DS1307_I2C_TIMEOUT);
}void DS1307_WriteRAM(uint8_t Address, uint8_t *Value, uint8_t Length)
{if((Address DS1307_REG_RAM_START) || (Address DS1307_REG_RAM_END)) return;if((Address Length DS1307_REG_RAM_START) DS1307_REG_RAM_END) return;HAL_I2C_Mem_Write(hi2c_ds1307, DS1307_ADDRESS, Address, 1, Value, Length, DS1307_I2C_TIMEOUT);
}void DS1307_Init(I2C_HandleTypeDef *hi2c)
{hi2c_ds1307 hi2c;DS1307_SQWRateSelect(SQW_RATE_1HZ);DS1307_SQWEnable(1);DS1307_ClockHalt(0);
// Ds1307Buffer[0] 0x00; // 初始化为写入ds1307的起始地址
// Ds1307Buffer[1] 0x80; // 控制寄存器启用时钟输出
// HAL_I2C_Master_Transmit_DMA(hi2c_ds1307, DS1307_ADDRESS, Ds1307Buffer, 2);
// HAL_Delay(10); // 等待数据传输完成
}
void DS1307_ReadTime(I2C_HandleTypeDef *hi2c,uint8_t *time_data)
{hi2c_ds1307 hi2c;Ds1307Buffer[0] 0x00; // 读取ds1307的起始地址HAL_I2C_Master_Transmit_DMA(hi2c_ds1307, DS1307_ADDRESS, Ds1307Buffer, 1);HAL_I2C_Master_Receive_DMA(hi2c_ds1307, DS1307_ADDRESS, time_data, 7);HAL_Delay(10); // 等待数据传输完成
}
DS1307.h文件
/** DS1307.h** The MIT License.* Created on: 4.09.2019* Author: Mateusz Salamon* Contact: mateuszmsalamon.pl** Website: https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/* GitHub: https://github.com/lamik/DS1307_RTC_STM32_HAL*/
#ifndef __DS1307_H__
#define __DS1307_H__// Uncomment when you are using DMA reading
#include main.h#define DS1307_USE_DMA #define DS1307_ADDRESS (0x681) //ds1307设备地址
#define DS1307_I2C_TIMEOUT 100#define DS1307_REG_TIME 0x00#define DS1307_REG_SECONDS 0x00
#define DS1307_REG_MINUTES 0x01
#define DS1307_REG_HOURS 0x02
#define DS1307_REG_DAY 0x03
#define DS1307_REG_DATE 0x04
#define DS1307_REG_MONTH 0x05
#define DS1307_REG_YEAR 0x06
#define DS1307_REG_CONTROL 0x07
#define DS1307_REG_RAM_START 0x08
#define DS1307_REG_RAM_END 0x3F//
// Controll register 0x07
//
#define DS1307_CONTROL_OUTPUT_CONTROL 7
#define DS1307_CONTROL_SQUARE_WAVE_ENABLE 4
#define DS1307_CONTROL_RATE_SELECT_1 1
#define DS1307_CONTROL_RATE_SELECT_0 0typedef enum
{SQW_RATE_1HZ 0,SQW_RATE_4096HZ 1,SQW_RATE_8192HZ 2,SQW_RATE_32768HZ 3
}SQW_Rate;typedef struct
{uint16_t Year;uint8_t Month;uint8_t Day;uint8_t Hour;uint8_t Minute;uint8_t Second;uint8_t DayOfWeek;
}RTCDateTime;void DS1307_SQWEnable(uint8_t Enable);
void DS1307_SQWRateSelect(uint8_t Rate);
void DS1307_OutputControl(uint8_t Enable);
void DS1307_ClockHalt(uint8_t Enable);void DS1307_ReadRAM(uint8_t Address, uint8_t *Value, uint8_t Length);
void DS1307_WriteRAM(uint8_t Address, uint8_t *Value, uint8_t Length);void DS1307_SetDateTime(RTCDateTime *DateTime);
#ifdef DS1307_USE_DMA
void DS1307_ReceiveDateTimeDMA(void); // Use in DS1307 Interrupt handler
void DS1307_CalculateDateTime(RTCDateTime *DateTime); // Use in DMA Complete Receive interrupt
#else
void DS1307_GetDateTime(RTCDateTime *DateTime); // Use in blocking/interrupt mode in DS1307_INT EXTI handler
#endif
void DS1307_Init(I2C_HandleTypeDef *hi2c);#endif
主程序代码
/* USER CODE BEGIN Header */
/********************************************************************************* file : main.c* brief : Main program body******************************************************************************* attention** Copyright (c) 2023 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include main.h
#include dma.h
#include i2c.h
#include usart.h
#include gpio.h/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include DS1307.h
#include stdio.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 ---------------------------------------------------------*//* USER CODE BEGIN PV */
RTCDateTime r; // Date and Time variable
uint8_t Message[32]; // UART message
uint8_t MessageSize;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(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 */
// RTCDateTime *tm;/* 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_DMA_Init();MX_USART1_UART_Init();MX_I2C1_Init();/* USER CODE BEGIN 2 */DS1307_Init(hi2c1);uint32_t TimerUART HAL_GetTick();/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */if ((HAL_GetTick() - TimerUART) 1000){MessageSize sprintf(Message, %02d:%02d:%02d\n\r, r.Hour, r.Minute, r.Second);
// MessageSize sprintf(Message, %02d:%02d:%02d\n\r, tm-Hour, tm-Minute, tm-Second);HAL_UART_Transmit(huart1, Message, MessageSize, 1000);
// printf(Time:%s \r\n,time_data);TimerUART HAL_GetTick();HAL_GPIO_TogglePin(GPIOE, LED_Pin);}}/* 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 RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/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_MUL9;if (HAL_RCC_OscConfig(RCC_OscInitStruct) ! HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses 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_DIV2;RCC_ClkInitStruct.APB2CLKDivider RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(RCC_ClkInitStruct, FLASH_LATENCY_2) ! HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 */
#ifdef DS1307_USE_DMA
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{if(GPIO_Pin DS1307_INT_Pin){DS1307_ReceiveDateTimeDMA();}
}void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c)
{DS1307_CalculateDateTime(r);
}
#else
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{if(GPIO_Pin DS1307_INT_Pin){DS1307_GetDateTime(r);printf(EXTI trigger! \r\n);}
}
#endif
/* 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 */__disable_irq();while (1){}/* 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,ex: printf(Wrong parameters value: file %s on line %d\r\n, file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
程序源码
工程基于STM32F103VE可以根据个人适配到stm32任意一款型号的单片机上使用。✨申明本文章仅发表在CSDN网站任何其他网站未注明来源见此内容均为盗链和爬取请多多尊重和支持原创!对于文中所提供的相关资源链接将作不定期更换。 说明本人没有开通打赏功能也没有接受任何第三方自助谨防上当受骗
链接: https://pan.baidu.com/s/192KP5ozCzGFGhtzUAyuUhQ
提取码: p7j7
