EXTI读取DS1307数据

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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

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

✨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。

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

{/*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

https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/*

GitHub:

https://github.com/lamik/DS1307_RTC_STM32_HAL*/#include

*hi2c_ds1307;uint8_t

DS1307_SetControlRegister(uint8_t

Value)

0b10010011HAL_I2C_Mem_Write(hi2c_ds1307,

DS1307_ADDRESS,

DS1307_GetControlRegister(uint8_t

*Value)

WriteBitToControlRegister(uint8_t

BitNumber,

1;DS1307_GetControlRegister(tmp);tmp

~(1BitNumber);tmp

(ValueBitNumber);DS1307_SetControlRegister(tmp);

void

{WriteBitToControlRegister(DS1307_CONTROL_SQUARE_WAVE_ENABLE,

Enable);

3;DS1307_GetControlRegister(tmp);tmp

~(3DS1307_CONTROL_RATE_SELECT_0);tmp

(RateDS1307_CONTROL_RATE_SELECT_0);DS1307_SetControlRegister(tmp);

}void

{WriteBitToControlRegister(DS1307_CONTROL_OUTPUT_CONTROL,

Enable);

1;HAL_I2C_Mem_Read(hi2c_ds1307,

DS1307_ADDRESS,

(Enable7);HAL_I2C_Mem_Write(hi2c_ds1307,

DS1307_ADDRESS,

dec2bcd(DateTime-Second);tmp[1]

dec2bcd(DateTime-Minute);tmp[2]

DateTime-Month,

2000);HAL_I2C_Mem_Write(hi2c_ds1307,

DS1307_ADDRESS,

DS1307_CalculateDateTime(RTCDateTime

*DateTime)

bcd2dec(Ds1307Buffer[0]);DateTime-Minute

bcd2dec(Ds1307Buffer[1]);DateTime-Hour

bcd2dec(Ds1307Buffer[4]);DateTime-Month

0x1F);DateTime-Year

DS1307_ReceiveDateTimeDMA(void)

{HAL_I2C_Mem_Read_DMA(hi2c_ds1307,

DS1307_ADDRESS,

DS1307_I2C_TIMEOUT);DS1307_CalculateDateTime(DateTime);

#endifvoid

return;HAL_I2C_Mem_Read(hi2c_ds1307,

DS1307_ADDRESS,

return;HAL_I2C_Mem_Write(hi2c_ds1307,

DS1307_ADDRESS,

hi2c;DS1307_SQWRateSelect(SQW_RATE_1HZ);DS1307_SQWEnable(1);DS1307_ClockHalt(0);

Ds1307Buffer[0]

HAL_I2C_Master_Transmit_DMA(hi2c_ds1307,

DS1307_ADDRESS,

DS1307_ReadTime(I2C_HandleTypeDef

*hi2c,uint8_t

读取ds1307的起始地址HAL_I2C_Master_Transmit_DMA(hi2c_ds1307,

DS1307_ADDRESS,

1);HAL_I2C_Master_Receive_DMA(hi2c_ds1307,

DS1307_ADDRESS,

https://msalamon.pl/dalsze-zmagania-z-rtc-ds1307-i-pcf8563-na-stm32/*

GitHub:

https://github.com/lamik/DS1307_RTC_STM32_HAL*/

#ifndef

DS1307_CONTROL_SQUARE_WAVE_ENABLE

#define

DS1307_ReceiveDateTimeDMA(void);

Use

DS1307_CalculateDateTime(RTCDateTime

*DateTime);

/*********************************************************************************

file

body*******************************************************************************

attention**

AS-IS.********************************************************************************/

USER

------------------------------------------------------------------*/

#include

----------------------------------------------------------*/

USER

-----------------------------------------------------------*/

USER

------------------------------------------------------------*/

USER

-------------------------------------------------------------*/

USER

---------------------------------------------------------*//*

USER

-----------------------------------------------*/

void

---------------------------------------------------------*/

USER

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

Reset

*/MX_GPIO_Init();MX_DMA_Init();MX_USART1_UART_Init();MX_I2C1_Init();/*

USER

tm-Second);HAL_UART_Transmit(huart1,

Message,

HAL_GetTick();HAL_GPIO_TogglePin(GPIOE,

LED_Pin);}}/*

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)

Initializes

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_GPIO_EXTI_Callback(uint16_t

GPIO_Pin)

DS1307_INT_Pin){DS1307_ReceiveDateTimeDMA();}

}void

HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef

*hi2c)

HAL_GPIO_EXTI_Callback(uint16_t

GPIO_Pin)

DS1307_INT_Pin){DS1307_GetDateTime(r);printf(EXTI

trigger!

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。

链接:

https://pan.baidu.com/s/192KP5ozCzGFGhtzUAyuUhQ

提取码: