STM32&DS18b20程序已调试通过

只看该作者 · 2017-5-15 22:35

/****************************************Copyright (c)****************************************************
**
**
**
**--------------File Info---------------------------------------------------------------------------------
** File name:
** Last modified Date:
** Last Version:
** Descriptions:
**--------------------------------------------------------------------------------------------------------
** Created by:                      FiYu
** Created date:             2015-12-12
** Version:                         1.0
** Descriptions:             DS18B20温度传感器实验
**--------------------------------------------------------------------------------------------------------
** Modified by:                      FiYu
** Modified date:
** Version:
** Descriptions:
** Rechecked by:
**********************************************************************************************************/
/****-----请阅读ReadMe.txt进行实验-----***********/

#include "stm32f10x.h"
#include "delay.h"
#include "ds18b20.h"
#include "usart.h"

/**************************************************************************************
* 描  述 : GPIO/USART1初始化配置
* 入  参 : 无
* 返回值 : 无
**************************************************************************************/
void GPIO_Configuration(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;

      /* Enable the GPIO_LED Clock */
      RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO , ENABLE);

  GPIO_DeInit(GPIOB);       //将外设GPIOA寄存器重设为缺省值
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
      GPIO_Init(GPIOB, &GPIO_InitStructure);

      GPIO_DeInit(GPIOA);       //将外设GPIOA寄存器重设为缺省值
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推挽输出
      GPIO_Init(GPIOA, &GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空输入
      GPIO_Init(GPIOA, &GPIO_InitStructure);

      GPIO_SetBits(GPIOB , GPIO_Pin_9); //初始状态，熄灭指示灯LED1
}

/**************************************************************************************
* 描  述 : MAIN函数
* 入  参 : 无
* 返回值 : 无
**************************************************************************************/
int main(void)
{
      SystemInit();                      //设置系统时钟72MHZ
      GPIO_Configuration();
      USART1_Init(); //初始化配置TIM
      GPIO_ResetBits(GPIOB , GPIO_Pin_9);
      delay_ms(500);

      while( DS18B20_Init())
      {
            printf("\r\n no ds18b20 exit \r\n");
            GPIO_SetBits(GPIOB , GPIO_Pin_9);
      }
      printf("\r\n ds18b20 exit \r\n");
      GPIO_SetBits(GPIOB , GPIO_Pin_9);

      for(;;)
      {
            printf("\r\n temperature %.1f\r\n",DS18B20_Get_Temp());
            delay_ms(1500);                   // 1.5s 读取一次温度值
      }

}

/*********************************END FILE********************************************/