stm32f103c8t6驱动ds1302显示时间
时间: 2023-06-07 22:02:36 浏览: 124
要驱动DS1302显示时间,需要使用STM32F103C8T6单片机和DS1302实时时钟模块。
首先,在STM32F103C8T6单片机上设置接口,即GPIO口,用于连接DS1302。然后,在代码中设置相关寄存器,通过I²C总线与DS1302进行通信,以获取和设置时间和日期数据。
接下来,在程序中定义DS1302读写函数,即读取和写入时钟数据的函数。在主函数中调用上述函数,读取当前时间和日期,将其转换为可读形式,并输出到LCD屏幕上显示出来。
此外,需要设置实时中断和定时器中断,以确保时钟使用的准确性。
最后,调试程序并连接STM32F103C8T6单片机和DS1302实时时钟模块,即可实现DS1302时间的驱动。
总而言之,为了驱动DS1302显示时间,您需要合理布局硬件接口、设置程序寄存器、定义读写函数以及设置实时中断和定时器中断等,以确保时钟使用的准确性。
相关问题
stm32f103c8t6驱动ds1302
为了驱动DS1302时钟芯片,需要使用STM32F103C8T6的GPIO和SPI接口。以下是驱动DS1302的步骤:
1.包含DS1302.h头文件并定义DS1302ClassStruct结构体。
2.在DS1302ClassStruct结构体中定义初始化函数Init()、设置时间函数SetTime()和获取时间函数GetTime()。
3.在Init()函数中,初始化GPIO和SPI接口,并将DS1302芯片的CE引脚、IO引脚和SCLK引脚连接到STM32F103C8T6的GPIO引脚上。
4.在SetTime()函数中,将要设置的时间数据写入DS1302芯片的寄存器中。
5.在GetTime()函数中,从DS1302芯片的寄存器中读取时间数据。
以下是一个简单的DS1302驱动程序示例:
```c
#include "DS1302.h"
#include "stm32f1xx_hal.h"
#define DS1302_CE_GPIO_Port GPIOA
#define DS1302_CE_Pin GPIO_PIN_0
#define DS1302_IO_GPIO_Port GPIOA
#define DS1302_IO_Pin GPIO_PIN_1
#define DS1302_SCLK_GPIO_Port GPIOA
#define DS1302_SCLK_Pin GPIO_PIN_2
SPI_HandleTypeDef hspi1;
void DS1302_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(DS1302_SCLK_GPIO_Port, DS1302_SCLK_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : DS1302_CE_Pin */
GPIO_InitStruct.Pin = DS1302_CE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(DS1302_CE_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : DS1302_SCLK_Pin */
GPIO_InitStruct.Pin = DS1302_SCLK_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(DS1302_SCLK_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : DS1302_IO_Pin */
GPIO_InitStruct.Pin = DS1302_IO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(DS1302_IO_GPIO_Port, &GPIO_InitStruct);
/* SPI1 init */
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
Error_Handler();
}
}
void DS1302_WriteByte(uint8_t data)
{
uint8_t i;
for (i = 0; i < 8; i++)
{
HAL_GPIO_WritePin(DS1302_SCLK_GPIO_Port, DS1302_SCLK_Pin, GPIO_PIN_RESET);
if (data & 0x01)
{
HAL_GPIO_WritePin(DS1302_IO_GPIO_Port, DS1302_IO_Pin, GPIO_PIN_SET);
}
else
{
HAL_GPIO_WritePin(DS1302_IO_GPIO_Port, DS1302_IO_Pin, GPIO_PIN_RESET);
}
HAL_GPIO_WritePin(DS1302_SCLK_GPIO_Port, DS1302_SCLK_Pin, GPIO_PIN_SET);
data >>= 1;
}
}
uint8_t DS1302_ReadByte(void)
{
uint8_t i, data = 0;
for (i = 0; i < 8; i++)
{
HAL_GPIO_WritePin(DS1302_SCLK_GPIO_Port, DS1302_SCLK_Pin, GPIO_PIN_RESET);
data >>= 1;
if (HAL_GPIO_ReadPin(DS1302_IO_GPIO_Port, DS1302_IO_Pin))
{
data |= 0x80;
}
HAL_GPIO_WritePin(DS1302_SCLK_GPIO_Port, DS1302_SCLK_Pin, GPIO_PIN_SET);
}
return data;
}
void DS1302_WriteReg(uint8_t reg, uint8_t data)
{
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_RESET);
DS1302_WriteByte(reg);
DS1302_WriteByte(data);
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_SET);
}
uint8_t DS1302_ReadReg(uint8_t reg)
{
uint8_t data;
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_RESET);
DS1302_WriteByte(reg | 0x01);
data = DS1302_ReadByte();
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_SET);
return data;
}
void DS1302_SetTime(uint8_t *writeTime)
{
uint8_t i;
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_RESET);
DS1302_WriteByte(0xBE);
for (i = 0; i < 8; i++)
{
DS1302_WriteByte(writeTime[i]);
}
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_SET);
}
void DS1302_GetTime(DS1302TimeStruct *timeData)
{
uint8_t i;
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_RESET);
DS1302_WriteByte(0xBF);
for (i = 0; i < 8; i++)
{
timeData->second = DS1302_ReadByte();
timeData->minute = DS1302_ReadByte();
timeData->hour = DS1302_ReadByte();
timeData->day = DS1302_ReadByte();
timeData->month = DS1302_ReadByte();
timeData->week = DS1302_ReadByte();
timeData->year = DS1302_ReadByte() + 2000;
}
HAL_GPIO_WritePin(DS1302_CE_GPIO_Port, DS1302_CE_Pin, GPIO_PIN_SET);
}
DS1302ClassStruct DS1302Class = {
DS1302_Init,
DS1302_SetTime,
DS1302_GetTime
};
```
STM32F103C8T6驱动DS1302代码
以下是STM32F103C8T6驱动DS1302的基本代码:
```c
#include "stm32f10x.h"
#include "ds1302.h"
void DS1302_GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void DS1302_Delay(uint16_t nCount)
{
uint16_t i;
for (i = 0; i < nCount; i++);
}
void DS1302_WriteByte(uint8_t addr, uint8_t dat)
{
uint8_t i;
GPIO_ResetBits(GPIOA, GPIO_Pin_6); //RST
DS1302_Delay(1);
GPIO_ResetBits(GPIOA, GPIO_Pin_7); //CE
for (i = 0; i < 8; i++)
{
GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(addr & 0x01)); //IO
addr >>= 1;
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_RESET); //SCLK
DS1302_Delay(1);
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_SET); //SCLK
}
for (i = 0; i < 8; i++)
{
GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(dat & 0x01)); //IO
dat >>= 1;
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_RESET); //SCLK
DS1302_Delay(1);
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_SET); //SCLK
}
GPIO_WriteBit(GPIOA, GPIO_Pin_7, Bit_SET); //CE
}
uint8_t DS1302_ReadByte(uint8_t addr)
{
uint8_t i, dat = 0;
GPIO_ResetBits(GPIOA, GPIO_Pin_6); //RST
DS1302_Delay(1);
GPIO_ResetBits(GPIOA, GPIO_Pin_7); //CE
for (i = 0; i < 8; i++)
{
GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(addr & 0x01)); //IO
addr >>= 1;
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_RESET); //SCLK
DS1302_Delay(1);
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_SET); //SCLK
}
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
for (i = 0; i < 8; i++)
{
dat >>= 1;
if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_5))
{
dat |= 0x80;
}
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_RESET); //SCLK
DS1302_Delay(1);
GPIO_WriteBit(GPIOA, GPIO_Pin_8, Bit_SET); //SCLK
}
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_WriteBit(GPIOA, GPIO_Pin_7, Bit_SET); //CE
return dat;
}
void DS1302_WriteTime(DS1302_TIME * time)
{
DS1302_WriteByte(0x8e, 0x00);
DS1302_WriteByte(0x80, time->sec);
DS1302_WriteByte(0x82, time->min);
DS1302_WriteByte(0x84, time->hour);
DS1302_WriteByte(0x86, time->date);
DS1302_WriteByte(0x88, time->month);
DS1302_WriteByte(0x8c, time->year);
}
void DS1302_ReadTime(DS1302_TIME * time)
{
time->sec = DS1302_ReadByte(0x81);
time->min = DS1302_ReadByte(0x83);
time->hour = DS1302_ReadByte(0x85);
time->date = DS1302_ReadByte(0x87);
time->month = DS1302_ReadByte(0x89);
time->year = DS1302_ReadByte(0x8d);
}
void DS1302_Init(void)
{
DS1302_TIME time = {0};
DS1302_GPIO_Configuration();
DS1302_WriteByte(0x8e, 0x00);
DS1302_WriteByte(0x80, 0x00); //秒
DS1302_WriteByte(0x82, 0x00); //分
DS1302_WriteByte(0x84, 0x12); //时
DS1302_WriteByte(0x86, 0x07); //日
DS1302_WriteByte(0x88, 0x08); //月
DS1302_WriteByte(0x8c, 0x20); //年
DS1302_ReadTime(&time);
}
```
此代码中,使用了DS1302_TIME结构体来表示时间,包括秒、分、时、日、月、年等信息。其中DS1302_GPIO_Configuration函数用于配置STM32的GPIO口,DS1302_Delay函数用于实现延时,DS1302_WriteByte函数用于向DS1302写入数据,DS1302_ReadByte函数用于从DS1302读取数据,DS1302_WriteTime函数用于设置时间,DS1302_ReadTime函数用于读取时间,DS1302_Init函数用于初始化DS1302。