这些小活动你都参加了吗?快来围观一下吧!>>
电子产品世界 » 论坛首页 » 高校专区 » 漓东e学堂 » 39作业

共16条 2/2 1 2 跳转至
高工
2014-12-08 21:14:24     打赏
11楼

WoW,用swtich上瘾啊

后补的在哪?


菜鸟
2014-12-25 22:58:31     打赏
12楼
#include "stm32f10x.h"     
27.#include "stm32_eval.h"     
28.#include "delay.h"     
29.#include      
30.volatile int flag;     
31.#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)           
32.#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)      
33.#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)       
34.unsigned char Error_Flag=0;     
35.unsigned char zf=0;     
36.void SysTick_Configuration(void)     
37.{     
38.  /* Setup SysTick Timer for 10 msec interrupts  */    
39.  if (SysTick_Config(48000))                //配置     
40.  {      
41.    /* Capture error */      
42.    while (1);     
43.  }       
44. /* Configure the SysTick handler priority */    
45.  NVIC_SetPriority(SysTick_IRQn, 0x0);                            
46.}         
49./** @addtogroup STM32F10x_StdPeriph_Examples   
50.  * @{   
51.  */    
52.    
53./** @addtogroup EXTI_Config   
54.  * @{   
55.  */      
56.    
57./* Private typedef -----------------------------------------------------------*/    
58./* Private define ------------------------------------------------------------*/    
59./* Private macro -------------------------------------------------------------*/    
60./* Private variables ---------------------------------------------------------*/    
61.GPIO_InitTypeDef   GPIO_InitStructure;     
62.USART_InitTypeDef USART_InitStructure;     
63.USART_ClockInitTypeDef USART_ClockInitStructure;     
64.    
65.void RCC_Configuration(void)     
66.{     
67.  RCC_DeInit();                      
68.         
69.  RCC_HSICmd(ENABLE);                
70.  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);       
72.  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);         
73.  RCC_HSEConfig(RCC_HSE_OFF);          
75.  RCC_LSEConfig(RCC_LSE_OFF);          
77.   ******配置PLL时钟频率为52MHZ*******     
78.         
79.  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_8);    //RCC_PLLMul_x 即设置PLL时钟频率为 5*x MHz     
80.         
81.  //************************************//       
82.         
83.  RCC_PLLCmd(ENABLE);             ////*******************      
84.  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);               
85.  RCC_ADCCLKConfig(RCC_PCLK2_Div4);                            
86.  RCC_PCLK2Config(RCC_HCLK_Div1);                             
87.  RCC_PCLK1Config(RCC_HCLK_Div2);                   
88.  RCC_HCLKConfig(RCC_SYSCLK_Div1);               
89.  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);     
90.  while(RCC_GetSYSCLKSource() != 0x08);        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); 
96.GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    SW_DP      
97.RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);     
98. GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG     
99.  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;         // //选择设置GPIO管脚      
100.  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  ////设置管脚速率       
101.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     ////设置管脚工作状态,此为推挽输出       
102.  GPIO_Init(GPIOD, &GPIO_InitStructure);    //初始化GPIOD      
103.    GPIO_ResetBits(GPIOD,GPIO_Pin_2);     //上拉关闭蜂鸣器       
104.    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);     
105. GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG     
106.  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     
107.  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;     
108.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     
109.  GPIO_Init(GPIOC, &GPIO_InitStructure);     
110.    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);     
111.      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);      
112.}          
114.void USART_int(long BaudRate)     
115.{     
116.  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//设时钟     
117.       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;     
118.    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;     
119.    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;      
120.    GPIO_Init(GPIOA, &GPIO_InitStructure);     
121.    /* PA10 USART1_Rx  */    
122.    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;     
123.    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;     
124.    GPIO_Init(GPIOA, &GPIO_InitStructure);     
125.  /* USARTx configured as follow:   
126.        - BaudRate = 115200 baud     
127.        - Word Length = 8 Bits   
128.        - One Stop Bit   
129.        - No parity   
130.        - Hardware flow control disabled (RTS and CTS signals)   
131.        - Receive and transmit enabled   
132.  */    
133.  USART_InitStructure.USART_BaudRate = BaudRate;//设置USART传输波特率    
134.  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//一帧传输或者接收的数据位数为8bit     
135.  USART_InitStructure.USART_StopBits = USART_StopBits_1;//在帧结尾传输一个停止位     
136.  USART_InitStructure.USART_Parity = USART_Parity_No;//奇偶模式失能     
137.  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//硬件流控制失能     
138.  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//使能接收发模式     
139.    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;    //时钟低电平活动     
140.    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      //引脚时钟输出低电平时钟     
141.    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;     //第二个时钟边沿开始捕获数据     
142.    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//最后一位数据的时钟脉冲不从SCLK输出     
143.    USART_ClockInit(USART1, &USART_ClockInitStructure);     
144.  USART_Init(USART1, &USART_InitStructure);//USART1初始化     
145.  USART_Cmd(USART1, ENABLE);//使能USART1时钟外设     
146.    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//使能接受中断     
147. USART_Cmd(USART1, ENABLE);     
148.}     
149.    
150.void delay_18b20(u32 nus)    
151.{     
152.    u16 i;     
153.    while(nus--)     
154.        for(i=12;i>0;i--);     
155.}     
156.    
157.    
158.         
159.void Init18B20(void)  //18B20初始化     
160.{     
161.   u8 aa=0;     
162.   u8 count =0;     
163.    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//使能PC时钟     
164.  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;     
165.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出     
166.  GPIO_Init(GPIOC, &GPIO_InitStructure);     
167.   Set_B20() ;   // GPIO_SetBits(GPIOC, GPIO_Pin_12)      
168.   delay_18b20(1);     
169.   Reset_B20();     
170.    
171.   delay_18b20(480);     
172.   Set_B20();     
173.//  delay_18b20(500);     
174.   delay_18b20(480);     
175.    
176.    count=0;     
177.    aa=Read_B20();         //温度读取     
179.    while(!aa && count<100)        
180.   {     
181.    aa=Read_B20();     
182.    count++;          //for()和while结合     
183.   }     
184.   if(count>=99)     
185.        Error_Flag=1;     
186.    else    
187.        Error_Flag=0;     
188.        
189.}     
190.       
191.unsigned char Read18B20(void)//按位读取数据     
192.{       
193.unsigned char i=0;     
194.unsigned char date=0;     
195.u8 tempp;     
196.   for(i=8;i>0;i--)     
197.   {     
198.    
199.   Reset_B20();   //打开PC12     
200.   date>>=1;    //标志右移一位     
201.   delay_18b20(1);     
202.   Set_B20();     
203.    delay_18b20(1);     
204.   tempp=Read_B20();   //读取温度     
205.    
206.   if(tempp)     
207.        date|=0x80;     
208.    delay_18b20(60);     
209.    }     
210.    return(date);     
211.}     
212.void Write18B20(unsigned char date)//  
213.{     
214.    unsigned char i=0;     
215.    
216.    for (i=8; i>0; i--)     
217.    {     
218.        Reset_B20();      
219.        delay_18b20(1);              
220.        if(date & 0x01)              
221.        {        
222.            Set_B20();     
223.        }     
224.        else    
225.        {   Reset_B20();}     
226.        delay_18b20(60);     
227.        date>>=1;           
228.         Set_B20();     
229.         delay_18b20(1);     
230.                 
231.    }     
232.    delay_18b20(15);     
233.}     
234.    
235. float Read_T()//读温度     
236.{        
237.        unsigned char TUp,TDown;     
238.    unsigned char fTemp;     
239.    u8 TT=0;     
240.    
241.     float Temp = 0;     
242.    Init18B20();     
243.    Write18B20(0xcc);          
244.    Write18B20(0x44);         
245.    Init18B20();     
246.    Write18B20(0xcc);        
247.    Write18B20(0xbe);        
248.    TDown = Read18B20();         
249.    TUp = Read18B20();           
250.         
251.    if(TUp>0x7f)           
252.    {     
253.        TDown=~TDown;       
254.        TUp=~TUp+1;      
255.        TUp/=8;               
256.        zf=1;              
257.    }     
258.    else    
259.        zf=0;          
260.    
261.    fTemp=TDown&0x0f;            
262.    TUp<<=4;     
263.    TDown>>=4;     
264.    TT=TUp|TDown;     
265.    Temp=TT+(float)fTemp/16;             
266.    return(Temp);     
267.}     
268.                                      
269.int main(void)     
270.{     
271.             
272.  /*!< At this stage the microcontroller clock setting is already configured,    
273.       this is done through SystemInit() function which is called from startup   
274.       file (startup_stm32f10x_xx.s) before to branch to application main.   
275.       To reconfigure the default setting of SystemInit() function, refer to   
276.       system_stm32f10x.c file   
277.     */          
278.            
279.  /* System Clocks Configuration */    
280.    char ID[8];     
281.    int i;     
282.  RCC_Configuration();     
283.  USART_int(115200);     
284.    SysTick_Configuration();     
285.    printf(" config done...\r\n");     
286.  delay_ms(1000);     
287.         
288.    Init18B20();     //初始化     
289.    Write18B20(0x33);  //读取地址的命令     
290.    delay_18b20(20);     
291.    for(i=0;i<8;i++)   //
292.    {     
293.        ID[i] = Read18B20();//读取地址     
294.    }     
295.         
296.    while(1)     
297.    {     
298.        if(flag == 300)     
299.        {     
300.            printf("At the moment of ID is:")   ;      
301.            for(i=0;i<8;i++)       
302.        {     
303.          printf("%u",ID[i]);//输出地址     
304.        }     
305.            printf("\r\n")  ;     
306.        }     
307.        if(flag == 500)     
308.        {                
309.            printf("The Temperature is:%f\r\n",Read_T());     
310.            printf("===================================================\r\n");     
311.    }     
312.    }     
313.}     
314.    
315.    
316.    
317.#ifdef  USE_FULL_ASSERT     
318.    
319./**   
320.  * @brief  Reports the name of the source file and the source line number   
321.  *         where the assert_param error has occurred.   
322.  * @param  file: pointer to the source file name   
323.  * @param  line: assert_param error line source number   
324.  * @retval None   
325.  */    
326.void assert_failed(uint8_t* file, uint32_t line)     
327.{      
328.  /* User can add his own implementation to report the file name and line number,   
329.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */    
330.    
331.  /* Infinite loop */    
332.  while (1)     
333.  {     
334.  }     
335.}     
336.    
337.#endif     
338.    
339./**   
340.  * @}   
341.  */      
342.    
343./**   
344.  * @}   
345.  */      
346.    
347.#ifdef __GNUC__     
348.  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf   
349.     set to 'Yes') calls __io_putchar() */    
350.  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)     
351.#else     
352.  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)     
353.#endif /* __GNUC__ */     
354.       
355.    
356.    
357./**   
358.  * @brief  Retargets the C library printf function to the USART.   
359.  * @param  None   
360.  * @retval None   
361.  */    
362.PUTCHAR_PROTOTYPE     
363.{     
364.  /* Place your implementation of fputc here */    
365.  /* e.g. write a character to the USART */    
366.  USART_SendData(EVAL_COM1, (uint8_t) ch);     
367.    
368.  /* Loop until the end of transmission */    
369.  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)     
370.  {}     
371.    
372.  return ch;     
373.}     
374.    
375.#ifdef  USE_FULL_ASSERT     
376.    
377./**   
378.  * @brief  Reports the name of the source file and the source line number   
379.  *         where the assert_param error has occurred.   
380.  * @param  file: pointer to the source file name   
381.  * @param  line: assert_param error line source number   
382.  * @retval None   
383.  */    
384.void assert_failed(uint8_t* file, uint32_t line)     
385.{      
386.  /* User can add his own implementation to report the file name and line number,   
387.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */    
388.    
389.  /* Infinite loop */    
390.  while (1)     
391.  {     
392.  }     
393.}        
395.#endif     

 


菜鸟
2014-12-25 23:08:39     打赏
13楼
#include <stm32f10x.h>   
#include "stm32_eval.h"    
#include "delay.h"  
#include <stdio.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_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;    
    
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++;    
}    
    
        
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;    
}    
    
void RCC_Configuration(void)    
{    
  RCC_DeInit();    
        
  RCC_HSICmd(ENABLE);  //使能HSI  
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);    
      
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);    
      
  RCC_HSEConfig(RCC_HSE_OFF);    
  RCC_LSEConfig(RCC_LSE_OFF);    
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz    
  RCC_PLLCmd(ENABLE);    
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);    
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);    
  RCC_PCLK2Config(RCC_HCLK_Div1);    
  RCC_PCLK1Config(RCC_HCLK_Div2);    
  RCC_HCLKConfig(RCC_SYSCLK_Div1);    
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);    
  while(RCC_GetSYSCLKSource() != 0x08)  
 //SystemInit();    
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);    
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    
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;    
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;    
  GPIO_Init(GPIOD, &GPIO_InitStructure);    
    GPIO_ResetBits(GPIOD,GPIO_Pin_2);    
    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;    
  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);    
}     
    
void USART_int(long BaudRate)    
{    
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);    
       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;   
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit    
  USART_InitStructure.USART_StopBits = USART_StopBits_1;    
  USART_InitStructure.USART_Parity = USART_Parity_No;   
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;    
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;         
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;          
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;          
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;    
    USART_ClockInit(USART1, &USART_ClockInitStructure);    
  USART_Init(USART1, &USART_InitStructure);    
  USART_Cmd(USART1, ENABLE);    
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);    
 USART_Cmd(USART1, ENABLE);    
}    
    
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--);    
}    
    
void ADC_CONFIG(){    
    ADC_InitTypeDef ADC_InitStructure;    
    #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL)    
  /* ADCCLK = PCLK2/2 */    
  RCC_ADCCLKConfig(RCC_PCLK2_Div2);     
#else    
  /* ADCCLK = PCLK2/4 */    
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);     
#endif    
ADC_DeInit(ADC1);    
  /* Enable ADC1 and GPIOC clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOB, ENABLE);    
        
    /* Configure PB0 (ADC Channel14) as analog input -------------------------*/    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;    
  GPIO_Init(GPIOB, &GPIO_InitStructure);    
        
      
  /* ADC1 configuration ------------------------------------------------------*/    
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;    
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;    
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;    
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;    
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;    
  ADC_InitStructure.ADC_NbrOfChannel = 1;    
  ADC_Init(ADC1, &ADC_InitStructure);    
    
    
  /* Enable ADC1 DMA */    
  ADC_DMACmd(ADC1, ENABLE);    
      
  /* Enable ADC1 */    
  ADC_Cmd(ADC1, ENABLE);    
    
}    
    
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()  
{   
    int i=0;        
    int ADValue = 0;    
    float Volt=0.00;  
     char shuzu[100];  
     for(i=0;i<5;i++)    
        {     
                    ADValue = Get_ADC();  
        Volt = VREF*ADValue/4095;  
        printf("===============================\r\n");  
        printf("The ADC value is:%d\r\n",ADValue);  
        printf("The Volt is:%f V\r\n",Volt);  
            delay_ms(500);             
          
    }    
      
    printf("\r\n2M SPI总线flash(W25X16)测试 \r\n");  
    SPI_FLASH_Init();  
    /* 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  flash W25X16 !\r\n");  
        SPI_FLASH_SectorErase(FLASH_SectorToErase);        
  SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);  
        printf("\r\n写入的数据是:%s \r\t", Tx_Buffer);   
        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)    
{
  RCC_Configuration();    
  USART_int(115200);     
    ADC_CONFIG();    
     printf(" config done...\r\n");   
     Get_ADC();  
    delay_ms(800);    
        while(1)    
    {                
      SPI_TEST();    
        delay_ms(800);    
    }    
}    
    
    
    
    
#ifdef  USE_FULL_ASSERT    
  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    
    

 


菜鸟
2014-12-25 23:19:06     打赏
14楼
#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include "delay.h"  
#include   
volatile int flag;  
#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)    
#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)  
#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)
unsigned char Error_Flag=0;  
unsigned char zf=0;  
void SysTick_Configuration(void)  
{  
  if (SysTick_Config(48000))               45000/45ms=1ms    
  {   
    /* Capture error */   
    while (1);  
  }    
 /* Configure the SysTick handler priority */  
  NVIC_SetPriority(SysTick_IRQn, 0x0);                  
}  
  
  
/** @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();    
      RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); 
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
    
  RCC_HSEConfig(RCC_HSE_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_5); //   RCC_PLLMul_ 设置PLL时钟频率为 5*8 MHz    
      
  RCC_PLLCmd(ENABLE); 
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);//L就绪   
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);  
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
      
//  SystemInit();  
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG  
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;  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  GPIO_Init(GPIOD, &GPIO_InitStructure);  
    GPIO_ResetBits(GPIOD,GPIO_Pin_2);  
    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;  
  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);    
}   
  
void USART_int(long BaudRate)  
{  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);  
       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;  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;  
  USART_InitStructure.USART_Parity = USART_Parity_No;  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; 
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;       
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;        
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;        
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;  
    USART_ClockInit(USART1, &USART_ClockInitStructure);  
  USART_Init(USART1, &USART_InitStructure);  
  USART_Cmd(USART1, ENABLE);  
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);  
 USART_Cmd(USART1, ENABLE);  
}  
  
void delay_18b20(u32 nus) //18b20按照严格的时序工作,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;//选择PC12  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出    
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
   Set_B20() ; //拉高   
   delay_18b20(1);   
   Reset_B20(); //拉低    
   delay_18b20(480);  
   Set_B20();//拉高   
   delay_18b20(480);  
   count=0;  
    aa=Read_B20();  
    while(!aa && count<99)     
   {  
    aa=Read_B20();  
    count++;  
   }  
   if(count>=99) //大于99次 报错 为1    
        Error_Flag=1;  
    else  
        Error_Flag=0;   //未达99次 正常     
}  
    
unsigned char Read18B20(void)  
{    
unsigned char i=0;  
unsigned char date=0;  
u8 tempp;  
   for(i=8;i>0;i--) 
   {  
  
   Reset_B20(); 
   date>>=1;   
   delay_18b20(1);  
   Set_B20();  //拉高电平,关闭   
    delay_18b20(1);  
   tempp=Read_B20();//读取温度值    
  
   if(tempp)   
        date|=0x80;   
    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(); //置低电平    
        delay_18b20(1);           
        if(date & 0x01)              
        {     
            Set_B20();//置高电平    
        }  
        else  
        {   Reset_B20();}  
        delay_18b20(60);  
        date>>=1;      //date右移一位    
         Set_B20();//置高电平    
         delay_18b20(1);              
    }  
    delay_18b20(15);  
}  
  
 float Read_T()//读取温度值    
{     
        unsigned char TUp,TDown;  
    unsigned char fTemp;  
    u8 TT=0;  
  
     float Temp = 0;  
    Init18B20();//1820初始化    
    Write18B20(0xcc);        
    Write18B20(0x44);      
    Init18B20();//1820   
    Write18B20(0xcc);  
    Write18B20(0xbe);    
   
int main(void)  
{  
     int i;     unsigned char ID[8];  
  /*!< 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 */  
  RCC_Configuration();  
USART_int(115200);  
    Init18B20();//初始化18B20  
    SysTick_Configuration();
      
    printf(" config done...\r\n");  
 Write18B20(0x33);   
     for(i=0;i<8;i++)   
    {    
        ID[i]=Read18B20();    
    }    
    delay_ms(1000);  
      
    while(1)  
    {  
        if(flag == 400){  
            printf("The Temperature is:%f\r\n",Read_T());//400us读一次温度   
}  
  if(flag == 300){         //300us读一次id    
              printf("The id is:");    
                for(i=0;i<8;i++)            
          {         
                printf("%u",ID[i]);        
                    if(i==7){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)  
  {  
  }  
}  
<p>  
    #endif  
</p>  
  
<p>  
    <br>  
  
</p>  
  
<p>  
    <br>  
  
</p>  

 


菜鸟
2014-12-25 23:20:21     打赏
15楼
#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include "delay.h"  
#include   
volatile int flag;  
#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)    
#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)  
#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)
unsigned char Error_Flag=0;  
unsigned char zf=0;  
void SysTick_Configuration(void)  
{  
  if (SysTick_Config(48000))               45000/45ms=1ms    
  {   
    /* Capture error */   
    while (1);  
  }    
 /* Configure the SysTick handler priority */  
  NVIC_SetPriority(SysTick_IRQn, 0x0);                  
}  
  
  
/** @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();    
      RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); 
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
    
  RCC_HSEConfig(RCC_HSE_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_5); //   RCC_PLLMul_ 设置PLL时钟频率为 5*8 MHz    
      
  RCC_PLLCmd(ENABLE); 
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);//L就绪   
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);  
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
      
//  SystemInit();  
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG  
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;  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  GPIO_Init(GPIOD, &GPIO_InitStructure);  
    GPIO_ResetBits(GPIOD,GPIO_Pin_2);  
    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;  
  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);    
}   
  
void USART_int(long BaudRate)  
{  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);  
       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;  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;  
  USART_InitStructure.USART_Parity = USART_Parity_No;  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; 
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;       
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;        
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;        
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;  
    USART_ClockInit(USART1, &USART_ClockInitStructure);  
  USART_Init(USART1, &USART_InitStructure);  
  USART_Cmd(USART1, ENABLE);  
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);  
 USART_Cmd(USART1, ENABLE);  
}  
  
void delay_18b20(u32 nus) //18b20按照严格的时序工作,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;//选择PC12  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出    
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
   Set_B20() ; //拉高   
   delay_18b20(1);   
   Reset_B20(); //拉低    
   delay_18b20(480);  
   Set_B20();//拉高   
   delay_18b20(480);  
   count=0;  
    aa=Read_B20();  
    while(!aa && count<99)     
   {  
    aa=Read_B20();  
    count++;  
   }  
   if(count>=99) //大于99次 报错 为1    
        Error_Flag=1;  
    else  
        Error_Flag=0;   //未达99次 正常     
}  
    
unsigned char Read18B20(void)  
{    
unsigned char i=0;  
unsigned char date=0;  
u8 tempp;  
   for(i=8;i>0;i--) 
   {  
  
   Reset_B20(); 
   date>>=1;   
   delay_18b20(1);  
   Set_B20();  //拉高电平,关闭   
    delay_18b20(1);  
   tempp=Read_B20();//读取温度值    
  
   if(tempp)   
        date|=0x80;   
    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(); //置低电平    
        delay_18b20(1);           
        if(date & 0x01)              
        {     
            Set_B20();//置高电平    
        }  
        else  
        {   Reset_B20();}  
        delay_18b20(60);  
        date>>=1;      //date右移一位    
         Set_B20();//置高电平    
         delay_18b20(1);              
    }  
    delay_18b20(15);  
}  
  
 float Read_T()//读取温度值    
{     
        unsigned char TUp,TDown;  
    unsigned char fTemp;  
    u8 TT=0;  
  
     float Temp = 0;  
    Init18B20();//1820初始化    
    Write18B20(0xcc);        
    Write18B20(0x44);      
    Init18B20();//1820   
    Write18B20(0xcc);  
    Write18B20(0xbe);    
   
int main(void)  
{  
     int i;     unsigned char ID[8];  
  /*!< 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 */  
  RCC_Configuration();  
USART_int(115200);  
    Init18B20();//初始化18B20  
    SysTick_Configuration();
      
    printf(" config done...\r\n");  
 Write18B20(0x33);   
     for(i=0;i<8;i++)   
    {    
        ID[i]=Read18B20();    
    }    
    delay_ms(1000);  
      
    while(1)  
    {  
        if(flag == 400){  
            printf("The Temperature is:%f\r\n",Read_T());//400us读一次温度   
}  
  if(flag == 300){         //300us读一次id    
              printf("The id is:");    
                for(i=0;i<8;i++)            
          {         
                printf("%u",ID[i]);        
                    if(i==7){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)  
  {  
  }  
}  
<p>  
    #endif  
</p>  
  
<p>  
    <br>  
  
</p>  
  
<p>  
    <br>  
  
</p>  

 


高工
2015-01-06 21:48:44     打赏
16楼
突击队员丁,编号12580

共16条 2/2 1 2 跳转至

回复

匿名不能发帖!请先 [ 登陆 注册 ]