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菜鸟
2014-12-24 14:35:09     打赏
31楼
灰常荣幸,谢谢老师哈

菜鸟
2014-12-24 14:46:15     打赏
32楼

                 时钟滴答读出18b20地址

刚开始赋值ID地址的时候没用用for   ID[i] = Read18B20()

 然后灯也不亮,串口只输出了  event 1 oc...... 然后就没有然后了, 

之后加了之后输出正常了,但是输出的ID值出错



然后才想起字符不能直接输出的,所以又加了for,之后才完成了








/**
  ******************************************************************************
  * @file    EXTI/EXTI_Config/main.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  *

	© COPYRIGHT 2011 STMicroelectronics

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

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include "delay.h"
#include 
volatile int flag;
#define Set_B20()	 GPIO_SetBits(GPIOC, GPIO_Pin_12)      //上拉关闭PC12
#define Reset_B20()	 GPIO_ResetBits(GPIOC, GPIO_Pin_12)  //下拉打开PC12
#define Read_B20()	 GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)  //读PC12状态
unsigned char Error_Flag=0;
unsigned char zf=0;
void SysTick_Configuration(void)
{
  /* Setup SysTick Timer for 10 msec interrupts  */
  if (SysTick_Config(48000))                //SysTick配置
  { 
    /* Capture error */ 
    while (1);
  }  
 /* Configure the SysTick handler priority */
  NVIC_SetPriority(SysTick_IRQn, 0x0);                       //SysTick中断优先级
}


/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */

/** @addtogroup EXTI_Config
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef   GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;

void RCC_Configuration(void)
{
  RCC_DeInit();                 //将外设RCC重新设为缺省值  
    
  RCC_HSICmd(ENABLE);            //使能内部高速晶振  
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);      //当SHI晶振就绪则重新设定 
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);      //设置系统时钟,选择SHI时钟为系统时钟
  
  RCC_HSEConfig(RCC_HSE_OFF);     //设置外部高速晶振,HSE晶振OFF 
  RCC_LSEConfig(RCC_LSE_OFF);      //设置外部低速晶振,LSE晶振OFF  
	
	//******配置PLL时钟频率为48MHZ*******//
	
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_8);    //RCC_PLLMul_x 即设置PLL时钟频率为 6*x MHz
	
  //************************************//	
	
  RCC_PLLCmd(ENABLE);             ////*******************使能PLL 
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);        //PLL就绪  
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);                     //  ADC时钟=PCLK/2  
  RCC_PCLK2Config(RCC_HCLK_Div1);                       //  APB2时钟=HCLK 
  RCC_PCLK1Config(RCC_HCLK_Div2);            /// APB1时钟=HCLK/2  
  RCC_HCLKConfig(RCC_SYSCLK_Div1);         //  AHB时钟=系统时钟 
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);       // 选择PLL为系统时钟  
  while(RCC_GetSYSCLKSource() != 0x08);        //当PLL不是系统时钟 

	
//	SystemInit();
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); //使能APB2外设时钟/****GPIOD时钟和功能复用IO时钟***/  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    SW_DP使能  
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;         // //选择设置GPIO管脚 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  ////设置管脚速率  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     ////设置管脚工作状态,此为推挽输出  
  GPIO_Init(GPIOD, &GPIO_InitStructure);    //初始化GPIOD 
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);     //上拉关闭蜂鸣器  
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;//LED
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
	  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //使能TIM2时钟
} 

void USART_int(long BaudRate)
{
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//使能GPIOA、USART1外设时钟
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//设置USART传输波特率  BaudRate = 9600 可以直接写9600
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//一帧传输或者接收的数据位数为8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//在帧结尾传输一个停止位
  USART_InitStructure.USART_Parity = USART_Parity_No;//奇偶模式失能
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//硬件流控制失能
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//使能接收发模式
	USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;    //时钟低电平活动
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      //引脚时钟输出低电平时钟
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;     //第二个时钟边沿开始捕获数据
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//最后一位数据的时钟脉冲不从SCLK输出
    USART_ClockInit(USART1, &USART_ClockInitStructure);
  USART_Init(USART1, &USART_InitStructure);//USART1初始化
  USART_Cmd(USART1, ENABLE);//使能USART1时钟外设
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//使能接受中断
 USART_Cmd(USART1, ENABLE);
}

void delay_18b20(u32 nus)    //18b20按照严格的时序工作,这是专属延时
{
	u16 i;
	while(nus--)
		for(i=12;i>0;i--);
}


	
void Init18B20(void)  //18B20初始化
{
   u8 aa=0;
   u8 count =0;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//使能PC时钟
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出
  GPIO_Init(GPIOC, &GPIO_InitStructure);
   Set_B20() ;   // GPIO_SetBits(GPIOC, GPIO_Pin_12) 
   delay_18b20(1);
   Reset_B20();

   delay_18b20(480);
   Set_B20();
//	delay_18b20(500);
   delay_18b20(480);

	count=0;
	aa=Read_B20();         //温度读取
	/****个人认为限制温度不超过99度,作为一个保护*/
    while(!aa && count<100)	 
   {
   	aa=Read_B20();
	count++;          //相当一个for()和while结合
   }
   if(count>=99)
   		Error_Flag=1;
	else
		Error_Flag=0;
   
}
  
unsigned char Read18B20(void)//按位读取数据
{  
unsigned char i=0;
unsigned char date=0;
u8 tempp;
   for(i=8;i>0;i--)
   {

   Reset_B20();   //打开PC12
   date>>=1;    //标志右移一位
   delay_18b20(1);
   Set_B20();    //关闭
    delay_18b20(1);
   tempp=Read_B20();   //读取温度

   if(tempp)
   		date|=0x80;     // 1000 0000   将最高位填1 ,然后右移,每次最高位由0变1,使8位全部传递完毕 0xff = 1111 1111
	delay_18b20(60);
	}
	return(date);
}
void Write18B20(unsigned char date)//写数据
{
	unsigned char i=0;

	for (i=8; i>0; i--)
	{
		Reset_B20(); 
		delay_18b20(1); 		
		if(date & 0x01)			
		{	
			Set_B20();
		}
		else
		{	Reset_B20();}
		delay_18b20(60);
		date>>=1; 	 
		 Set_B20();
		 delay_18b20(1);
			
	}
	delay_18b20(15);
}

 float Read_T()//读温度
{	
		unsigned char TUp,TDown;
	unsigned char fTemp;
	u8 TT=0;

	 float Temp = 0;
	Init18B20();
	Write18B20(0xcc); 	  
	Write18B20(0x44); 	 
	Init18B20();
	Write18B20(0xcc); 	
	Write18B20(0xbe); 	
	TDown = Read18B20();   	
	TUp = Read18B20();   	
	
	if(TUp>0x7f)      
	{
		TDown=~TDown;  
		TUp=~TUp+1; 
		TUp/=8;		     
		zf=1;         
 	}
	else
		zf=0;	  

	fTemp=TDown&0x0f;		
	TUp<<=4;
	TDown>>=4;
	TT=TUp|TDown;
	Temp=TT+(float)fTemp/16;		
	return(Temp);
}
                                 
int main(void)
{
		
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     
       
  /* System Clocks Configuration */
	char ID[8];
	int i;
  RCC_Configuration();
  USART_int(115200);
	SysTick_Configuration();
	printf(" config done...\r\n");
  delay_ms(1000);
	
	Init18B20();     //初始化
	Write18B20(0x33);  //写入读取地址的命令
	delay_18b20(20);
	for(i=0;i<8;i++)   //这里必须用for不然 只会输出printf("event 1 oc......\r\n")这句,不会继续运行
	{
		ID[i] = Read18B20();//读取地址
	}
	
	while(1)
	{
		if(flag == 300)
		{
			printf("At the moment of ID is:")	; 
			for(i=0;i<8;i++)     //字符不能直接输出,要按位输出
	    {
		  printf("%u",ID[i]);//输出地址
	    }
			printf("\r\n")	;
		}
		if(flag == 500)
		{			
			printf("The Temperature is:%f\r\n",Read_T());//读取温度并输出
			printf("===================================================\r\n");
    }
	}
}



#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 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) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/**
  * @}
  */ 

/**
  * @}
  */ 

#ifdef __GNUC__
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
     set to 'Yes') calls __io_putchar() */
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
  


/**
  * @brief  Retargets the C library printf function to the USART.
  * @param  None
  * @retval None
  */
PUTCHAR_PROTOTYPE
{
  /* Place your implementation of fputc here */
  /* e.g. write a character to the USART */
  USART_SendData(EVAL_COM1, (uint8_t) ch);

  /* Loop until the end of transmission */
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
  {}

  return ch;
}

#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 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) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/




菜鸟
2014-12-25 22:55:14     打赏
33楼

          SPI--读写ADC值

搞了老久才弄到这程度也是醉了,整型转化都找了好久,自己是不会写的,渣到家了,找个时间再研究下SPI总线这东西。。。。。。




/** 
  ****************************************************************************** 
  * @file    EXTI/EXTI_Config/main.c  
  * @author  MCD Application Team 
  * @version V3.5.0 
  * @date    08-April-2011 
  * @brief   Main program body 
  ****************************************************************************** 
  * @attention 
  * 
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS 
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE 
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY 
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING 
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE 
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. 
  * 
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2> 
  ****************************************************************************** 
  */   
  
/* Includes ------------------------------------------------------------------*/  
#include "stm32f10x.h"
#include "stm32_eval.h"
#include "delay.h"
#include <stdio.h>
#include <stdlib.h>
#include "spi_flash.h"
#define VREF 3.3 
  /* ???????? */
#define TxBufferSize1   (countof(TxBuffer1) - 1)  
#define RxBufferSize1   (countof(TxBuffer1) - 1)  
#define countof(a)      (sizeof(a) / sizeof(*(a)))  
#define  BufferSize (countof(Tx_Buffer)-1)  
typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus;  
#define  FLASH_WriteAddress     0x00000  
#define  FLASH_ReadAddress      FLASH_WriteAddress  
#define  FLASH_SectorToErase    FLASH_WriteAddress  
#define  sFLASH_ID              0xEF3015     //W25X16  
//#define  sFLASH_ID              0xEF4015   //W25Q16  
#define buff_size  16;       
char rx_buff[],rx_buff_count=0;  
/* ???????? */  
uint8_t Tx_Buffer[4096] ;  
uint8_t Rx_Buffer[BufferSize];  
__IO uint32_t DeviceID = 0;  
__IO uint32_t FlashID = 0;  
__IO TestStatus TransferStatus1 = FAILED;  
  
// ??????  
void Delay(__IO uint32_t nCount);  
TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);  
  
/** @addtogroup STM32F10x_StdPeriph_Examples 
  * @{ 
  */  
  
/** @addtogroup EXTI_Config 
  * @{ 
  */   
  
/* Private typedef -----------------------------------------------------------*/  
/* Private define ------------------------------------------------------------*/  
/* Private macro -------------------------------------------------------------*/  
/* Private variables ---------------------------------------------------------*/  
GPIO_InitTypeDef   GPIO_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
USART_ClockInitTypeDef USART_ClockInitStructure;  
  
void RCC_Configuration(void)
{
  RCC_DeInit();                 //将外设RCC重新设为缺省值  
    
  RCC_HSICmd(ENABLE);            //使能内部高速晶振  
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);      //当SHI晶振就绪则重新设定 
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);      //设置系统时钟,选择SHI时钟为系统时钟
  
  RCC_HSEConfig(RCC_HSE_OFF);     //设置外部高速晶振,HSE晶振OFF 
  RCC_LSEConfig(RCC_LSE_OFF);      //设置外部低速晶振,LSE晶振OFF  
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9);    //72MHz ,RCC_PLLMul_x 即设置PLL时钟频率为 6*x MHz
  RCC_PLLCmd(ENABLE);             ////*******************使能PLL 
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);        //PLL就绪  
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);                     //  ADC时钟=PCLK/2  
  RCC_PCLK2Config(RCC_HCLK_Div1);                       //  APB2时钟=HCLK 
  RCC_PCLK1Config(RCC_HCLK_Div2);            /// APB1时钟=HCLK/2  
  RCC_HCLKConfig(RCC_SYSCLK_Div1);         //  AHB时钟=系统时钟 
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);       // 选择PLL为系统时钟  
  while(RCC_GetSYSCLKSource() != 0x08);        //当PLL不是系统时钟 

	
//	SystemInit();
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); //使能APB2外设时钟/****GPIOD时钟和功能复用IO时钟***/  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    SW_DP使能  
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;         // //选择设置GPIO管脚 
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  ////设置管脚速率  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     ////设置管脚工作状态,此为推挽输出  
  GPIO_Init(GPIOD, &GPIO_InitStructure);    //初始化GPIOD 
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);     //上拉关闭蜂鸣器  
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;//LED
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
	  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //使能TIM2时钟
} 


void USART_int(long BaudRate)
{
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//使能GPIOA、USART1外设时钟
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//设置USART传输波特率  BaudRate = 9600 可以直接写9600
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//一帧传输或者接收的数据位数为8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//在帧结尾传输一个停止位
  USART_InitStructure.USART_Parity = USART_Parity_No;//奇偶模式失能
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//硬件流控制失能
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//使能接收发模式
	USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;    //时钟低电平活动
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      //引脚时钟输出低电平时钟
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;     //第二个时钟边沿开始捕获数据
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//最后一位数据的时钟脉冲不从SCLK输出
    USART_ClockInit(USART1, &USART_ClockInitStructure);
  USART_Init(USART1, &USART_InitStructure);//USART1初始化
  USART_Cmd(USART1, ENABLE);//使能USART1时钟外设
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//使能接受中断
 USART_Cmd(USART1, ENABLE);
}  
 
void ADC_CONFIG(){
	ADC_InitTypeDef ADC_InitStructure;//定义结构体
	#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL)
  /* ADCCLK = PCLK2/2 */
  RCC_ADCCLKConfig(RCC_PCLK2_Div2); //设置ADC时钟 = PCLK/2
#else
  /* ADCCLK = PCLK2/4 */
  RCC_ADCCLKConfig(RCC_PCLK2_Div4); //设置ADC时钟 = PCLK/4
#endif
ADC_DeInit(ADC1);       //将外设ADC1的全部寄存器重设为缺省值
  /* Enable ADC1 and GPIOC clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOB, ENABLE);//使能APB2外设时钟
	
	/* Configure PB0 (ADC Channel14) as analog input -------------------------*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;//模拟输入
  GPIO_Init(GPIOB, &GPIO_InitStructure);//初始化

  
  /* ADC1 configuration ------------------------------------------------------*/
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;//ADC1和ADC2工作在独立状态
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;  //规定模数转换在多通道还是单通道
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;//转化是连续还是单次模式
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;   //转换是由软件而不是外部触发启动
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  //ADC数据右对齐
  ADC_InitStructure.ADC_NbrOfChannel = 1;  //通道数目1个
  ADC_Init(ADC1, &ADC_InitStructure);


  /* Enable ADC1 DMA */
  ADC_DMACmd(ADC1, ENABLE);//使能ADC1的DMA请求
  
  /* Enable ADC1 */
  ADC_Cmd(ADC1, ENABLE);//使能ADC1

}
/***==============================***/
/***========整型转化为字符型======***/
char *int_to_string(int number,char *strnum)
{
int j=0,i=0,n=0;
char temp;
while(number>0)
{
*(strnum+j)=number%10+48;
j++;
number=number/10;
n++;
}

         /*翻转*/
for(i=0;i<n/2;i++)
{
temp=*(strnum+j+i-n);
*(strnum+j+i-n)=*(strnum+j-i-1);
*(strnum+j-i-1)=temp;
}
strnum[n]='\0';
return strnum;
}

/***==============================***/
/***==============================***/

TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)  
{  
  while(BufferLength--)  
  {  
    if(*pBuffer1 != *pBuffer2)  
    {  
      return FAILED;  
    }  
  
    pBuffer1++;  
    pBuffer2++;  
  }  
  return PASSED;  
}  
  
void Delay(__IO uint32_t nCount)  
{  
  for(; nCount != 0; nCount--);  
}  
  

  
int Get_ADC(){  
     /* ADC1 regular channel configuration */   
  ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_55Cycles5);  
    /* Enable ADC1 reset calibration register */     
  ADC_ResetCalibration(ADC1);  
  /* Check the end of ADC1 reset calibration register */  
  while(ADC_GetResetCalibrationStatus(ADC1));  
  
  /* Start ADC1 calibration */  
  ADC_StartCalibration(ADC1);  
  /* Check the end of ADC1 calibration */  
  while(ADC_GetCalibrationStatus(ADC1));  
       
  /* Start ADC1 Software Conversion */   
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);  
      
    return ADC_GetConversionValue(ADC1);  
}  
  
  
void SPI_TEST()
{
	printf("\r\n这是一个2M SPI总线flash(W25X16)测试 \r\n");
	SPI_FLASH_Init();//初始化,在头文件中
	/* Get SPI Flash Device ID */
	DeviceID = SPI_FLASH_ReadDeviceID();
	Delay( 200 );
	/* Get SPI Flash ID */
	FlashID = SPI_FLASH_ReadID();
	printf("\r\n FlashID is 0x%X,  Manufacturer Device ID is 0x%X\r\n", FlashID, DeviceID);
	/* Check the SPI Flash ID */
	if (FlashID == sFLASH_ID)  /* #define  sFLASH_ID  0xEF3015 */
	{
		printf("\r\n 检测到华邦flash W25X16 !\r\n");
		/* Erase SPI FLASH Sector to write on */
		SPI_FLASH_SectorErase(FLASH_SectorToErase);	 	 
		
		/*写缓存并发送*/
		SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);
		printf("\r\n写入的数据是:%s \r\t", Tx_Buffer);
		
		/* 读出刚才写入的数据*/
		SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);
		printf("\r\n读出的数据是:%s \r\n", Rx_Buffer);
		
		/* ????????????????? */
		TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
		
		if( PASSED == TransferStatus1 )
		{    
			printf("\r\n 2M SPI总线flash(W25X16)测试成功!\n\r");
		}
		else
		{        
			printf("\r\n 2M SPI总线flash(W25X16)测试失败!\n\r");
		}
	}// if (FlashID == sFLASH_ID)
	else
	{    
		printf("\r\n 未检测到 W25X16 ID!\n\r");
	}
	
	SPI_Flash_PowerDown();  
	printf("\r\n=================================================\n\r");
}
/* Private functions ---------------------------------------------------------*/  
  
/** 
  * @brief  Main program. 
  * @param  None 
  * @retval None 
  */  
int main(void)  
{  
          
  /*!< At this stage the microcontroller clock setting is already configured,  
       this is done through SystemInit() function which is called from startup 
       file (startup_stm32f10x_xx.s) before to branch to application main. 
       To reconfigure the default setting of SystemInit() function, refer to 
       system_stm32f10x.c file 
     */       
         
  /* System Clocks Configuration */  
    int ADValue = 0,i=0;  
    char num[10];  
    RCC_Configuration();  
    USART_int(115200);  
    printf(" config done...\r\n");  
    ADC_CONFIG();  
    delay_ms(1000);  
    while(1)  
    {  
      for(i=0;i<5;i++)  
        {   
           ADValue = Get_ADC();  
           int_to_string(ADValue,num);  
           Tx_Buffer[i]=num[i];  
        }  
				printf("\r\n转化成功后的字符数:%s\r\n",num);
        SPI_TEST();  
        delay_ms(1000);  
    }  
}  
  
  
  
  
#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 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) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/** 
  * @} 
  */   
  
/** 
  * @} 
  */   
  
#ifdef __GNUC__  
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf 
     set to 'Yes') calls __io_putchar() */  
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)  
#else  
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)  
#endif /* __GNUC__ */  
    
  
  
/** 
  * @brief  Retargets the C library printf function to the USART. 
  * @param  None 
  * @retval None 
  */  
PUTCHAR_PROTOTYPE  
{  
  /* Place your implementation of fputc here */  
  /* e.g. write a character to the USART */  
  USART_SendData(EVAL_COM1, (uint8_t) ch);  
  
  /* Loop until the end of transmission */  
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)  
  {}  
  
  return ch;  
}  
  
#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 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) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/  

 



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