EEPW论坛

视频地址：http://player.youku.com/player.php/sid/XODQxMzYzMDQ4/v.swf

#include "stm32f10x.h"  
#include "stm32_eval.h"  
//#include "delay.h"  
#include <stdio.h>  
#define VREF 3.3  
/** @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)  
{  
    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 delay_us(u32 n)     
{     
    u8 j;     
    while(n--)     
    for(j=0;j<10;j++);     
}     
  
void  delay_ms(u32 n)     
{     
    while(n--)     
    delay_us(1000);     
}  
  
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;//????1  
  USART_InitStructure.USART_Parity = USART_Parity_No;//????  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????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 PWM_Config()  
{ uint16_t PrescalerValue = 0;  
    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;  
  TIM_OCInitTypeDef  TIM_OCInitStructure;  
    /* TIM2 clock enable */  
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);  
  /* GPIOA  enable */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO  , ENABLE);  
      
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
    TIM_Cmd(TIM2, ENABLE);  
      /* Compute the prescaler value */  
  PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;  
  /* Time base configuration */  
  TIM_TimeBaseStructure.TIM_Period = 0x07FF;  
  TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;  
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;  
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);  
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;//????????1  
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;  
  /* PWM1 Mode configuration: Channel2 */  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;  
  TIM_OC2Init(TIM2, &TIM_OCInitStructure);  
    /* PWM1 Mode configuration: Channel3 */  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;  
  TIM_OC3Init(TIM2, &TIM_OCInitStructure);  
    /* PWM1 Mode configuration: Channel4 */  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;  
  TIM_OC4Init(TIM2, &TIM_OCInitStructure);  
  TIM_ARRPreloadConfig(TIM2, ENABLE);  
}  
  
void PWM_TEST()  
{ unsigned int temp0=0,temp1=0,temp2=0,i=0;  
    printf("PWM-RGB TEST......\r\n");  
    
    for(;i<200;i++)//?  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=1600,temp1=900,temp2=100;  
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)//??  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=100,temp1=2400,temp2=240;   
  }   
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)//  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=2400,temp1=1600,temp2=3200;     
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=2330,temp1=0,temp2=2000;  
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=100,temp1=40,temp2=1020;  
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=0,temp1=800,temp2=0;  
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
    for(;i<200;i++)  
        {  
          TIM_SetCompare2(TIM2, temp0);  
            TIM_SetCompare3(TIM2, temp1);  
            TIM_SetCompare4(TIM2, temp2);  
            temp0=0,temp1=1000,temp2=2400;  
  }  
    delay_ms(500);  
    temp0=0,temp1=0,temp2=0,i=0;  
}  
  
  
/* 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 */  
  RCC_Configuration();  
  USART_int(115200);  
      
    printf(" config done...\r\n");  
    PWM_Config();  
    delay_ms(1000);  
    while(1)  
    {  
        PWM_TEST();  
    }  
}  
  
  
  
#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****/  

ADC控制rgb

视频地址：http://player.youku.com/player.php/sid/XODU2MzEzOTA0/v.swf

#include "stm32f10x.h"    
#include "stm32_eval.h"    
#include <stdio.h>    
#define VREF 3.3    
/** @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)    
{  
    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    
 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_10MHz;    
    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;//????1    
  USART_InitStructure.USART_Parity = USART_Parity_No;//????    
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????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_us(u32 n)    
{    
    u8 j;    
    while(n--)    
    for(j=0;j<10;j++);    
}    
void  delay_ms(u32 n)    
{    
    while(n--)    
    delay_us(1000);    
}    
    
void PWM_Config()    
{uint16_t PrescalerValue = 0;    
    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;    
TIM_OCInitTypeDef  TIM_OCInitStructure;    
    /* TIM2 clock enable */    
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);    
  /* GPIOA  enable */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO  , ENABLE);    
        
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;    
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;    
  GPIO_Init(GPIOA, &GPIO_InitStructure);    
        TIM_Cmd(TIM2, ENABLE);    
      /* Compute the prescaler value */    
  PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;    
  /* Time base configuration */    
  TIM_TimeBaseStructure.TIM_Period = 0x07FF;    
  TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;    
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;    
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;    
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);    
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;    
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;    
  /* PWM1 Mode configuration: Channel2 */    
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;    
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;    
  TIM_OC2Init(TIM2, &TIM_OCInitStructure);    
    /* PWM1 Mode configuration: Channel3 */    
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;    
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;    
  TIM_OC3Init(TIM2, &TIM_OCInitStructure);    
    /* PWM1 Mode configuration: Channel4 */    
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;    
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;    
  TIM_OC4Init(TIM2, &TIM_OCInitStructure);    
  TIM_ARRPreloadConfig(TIM2, ENABLE);    
}    
    
    
    
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);   //??ADC1,????????  
#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????:????  
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;  //AD?????  
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;  //AD??????  
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;  //??????????????  
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  //ADC?????  
  ADC_InitStructure.ADC_NbrOfChannel = 1;  //?????????ADC?????1  
  ADC_Init(ADC1, &ADC_InitStructure);  //???????????ADC1  
  /* 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);  //???????1???,?????55.5  
    /* 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);  //??ADC??,?????ADC1?????  
  /* Check the end of ADC1 calibration */    
  while(ADC_GetCalibrationStatus(ADC1));           
  /* Start ADC1 Software Conversion */     
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);  //????ADC??       
    return ADC_GetConversionValue(ADC1);    
}    
  void PWM_TEST()    
{     
    float Volt=0.00;    
    unsigned int temp0,temp1,temp2,ADValue = 0;    
    while(1)    
{    
      ADValue = Get_ADC();    
        Volt = VREF*ADValue/4095;    
        printf("PWM-RGB & ADC TEST......\r\n\r\n");    
        printf("The ADC value is:%d\r\n",ADValue);    
        printf("The Volt is:%f V\r\n",Volt);    
      TIM_SetCompare2(TIM2, temp0);    
      TIM_SetCompare3(TIM2, temp1);    
      TIM_SetCompare4(TIM2, temp2);    
        if(ADValue>3000)    
         {  temp0=ADValue/2;temp1=ADValue/2;temp2=ADValue/2-1500;    
         }  
                 if(2000<ADValue<=3000)    
        {  temp0=ADValue/2;temp1=ADValue/2-1000;temp2=ADValue/2;    
        }  
                if(1000<ADValue<=2000)    
        {  temp0=ADValue/2+1000;temp1=ADValue/2;temp2=ADValue/2;    
        }  
                if(ADValue<=1000)    
        {  temp0=ADValue+500;temp1=ADValue+1500;temp2=ADValue+1000;    
        }   
            delay_ms(50);    
}    
}    
    
/* 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();    
    PWM_Config();    
    delay_ms(200);    
    while(1)    
    {      
        PWM_TEST();    
    }    
}    
    
    
    
#ifdef  USE_FULL_ASSERT    
void assert_failed(uint8_t* file, uint32_t line)    
{     
  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__ */     
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    
void assert_failed(uint8_t* file, uint32_t line)    
{      
  while (1)    
  {    
  }    
}    
    
#endif    
 

串口控制led

#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include    "stdio.h"  
  
#define buff_size  16;   
  
GPIO_InitTypeDef GPIO_InitStructure;  
char rx_buff[],rx_buff_count=0;  
  
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);  
  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);  
    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);  
}  
  
void GPIO_INIT()  
{  
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
     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);  
}  
void delay_us(u32 n)  
{  
    u8 j;  
    while(n--)  
    for(j=0;j<10;j++);  
}  
void  delay_ms(u32 n)  
{  
    while(n--)  
    delay_us(1000);  
}  
  
  
  
  void USART_int(long BaudRate)  
{ USART_InitTypeDef USART_InitStructure;  
    USART_ClockInitTypeDef USART_ClockInitStructure;  
     NVIC_InitTypeDef NVIC_InitStructure;  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);  
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;  
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;  
    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;//????1  
  USART_InitStructure.USART_Parity = USART_Parity_No;//????  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????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);  
  
  /* Configure four bit for preemption priority */  
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);  
  /* Enable the USART1 Interrupt */  
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; //  
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  NVIC_Init(&NVIC_InitStructure);  
}  
  
void USART_SendStr(char *str)  
{  
   while((*str)!='\0')  
{USART_SendData(USART1,*str++);  
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);  
}  
}  
  
char strcmp(char *S,char *C,char LEN)  
{ char count;  
  for(count=0;count<LEN;count++)  
  {  
      if(S[count]!=C[count])  
          {return 0;}  
  }  
  return 1;  
}  
  
void commcmp(char *S,char LEN)  
{   
    int i,j;  
    unsigned char flag=0;  
 if((LEN!=7)&(LEN!=8)&(LEN!=9))  
 {USART_SendStr("\r\n Erro input!!!\r\n");}  
  else{  
    switch(LEN)  
   {  
           
     case 7:  
              
         {  
                 flag = strcmp(S,"time=50",7);  
          if(flag==1)  
                  {   
                                for(i=0;i<=18;i++)  
                                            {  
                                                        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);  
                                                                                        i=0x01;  
                                                                             GPIO_ResetBits(GPIOC,i);  
                                                                                 delay_ms(50);    
                                                                             GPIO_SetBits(GPIOC,i);  
                                                                  
                                                        for(j=1;j<=3;j++)   
                                                        {    
                                                                                    i<<=1;   
                                                                                    GPIO_ResetBits(GPIOC,i);             
                                                            delay_ms(50);    
                                                                                    GPIO_SetBits(GPIOC,i);  
                                                        }    
                                                                            i=0x0100;    
                                                         for(j=1;j<=4;j++)    
                                                        {    
                                                                                    i>>=1;  
                                                                                    GPIO_ResetBits(GPIOC,i);     
                                                                                    delay_ms(50);    
                                                                                    GPIO_SetBits(GPIOC,i);  
                                                      
                                                        }  
                      
                                                        }  
                                                            break;   
  
                            }  
                        }  
                              
                              
     case 8:  
      
             {  
                         flag = strcmp(S,"time=100",8);  
                         if(flag==1)  
                             {  
                                        for(i=0;i<=18;i++)  
                                                 {  
                                                                i=0x0010;  
                                                            for(j=1;j<=4;j++)   
                                                            {    
                                                                                        i>>=1;   
                                                                                        GPIO_ResetBits(GPIOC,i);             
                                                                delay_ms(100);    
                                                                                        GPIO_SetBits(GPIOC,i);  
                                                            }    
                                                                                i=0x08;    
                                                             for(j=1;j<=4;j++)    
                                                            {    
                                                                                        i<<=1;  
                                                                                        GPIO_ResetBits(GPIOC,i);     
                                                                                        delay_ms(100);    
                                                                                        GPIO_SetBits(GPIOC,i);  
                                                            }  
  
                                            }  
                                             break;  
                 }   
                             }  
     case 9:        
             {  
                             flag = strcmp(S,"time=1000",9);  
                             if(flag==1)  
                             {  
                                 for(i=0;i<=18;i++)  
                                 {  
                                            GPIO_SetBits(GPIOC,0x000000ff);   
                                            i=0x00100;  
                                            for(j=1;j<=8;j++)   
                                                    {    
                                                             i>>=1;   
                                                            GPIO_ResetBits(GPIOC,i);             
                                                            delay_ms(1000);    
                                                            GPIO_SetBits(GPIOC,i);  
                                                        }    
                                                          
                                        }  
                                                                      
                      break;   
                 }  
               }       
                 }  
             }  
 }  
          
void input_ASK()  
{     
    char j;  
    commcmp(rx_buff,rx_buff_count);  
     rx_buff_count=0;  
      for (j=0;j<rx_buff_count;j++)  
          {rx_buff[j]='\0';}  
    USART_SendStr("\n>");  
}  
  
int main(void)  
{   
          
    RCC_Configuration();  
    GPIO_INIT();  
  USART_int(9600);  
    USART_SendStr("SyStem booting......\r\n");  
 while(1){}         
}  
  
  
  
void USART1_IRQHandler(void)   
{   
  
  while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET)  
  {   
  }   
if(USART_ReceiveData(USART1)==0x0d)  
{input_ASK();}  
else  
{  
USART_SendData(USART1,USART_ReceiveData(USART1));  
rx_buff[rx_buff_count]= USART_ReceiveData(USART1);  
    rx_buff_count++;  
}  
  USART_ClearFlag(USART1, USART_FLAG_RXNE);  
  
}  

IIC上电计数

视频地址：http://player.youku.com/player.php/sid/XODU1NjU4MzY0/v.swf

#include "stm32f10x.h"
#include "stm32_eval.h"
#include <stdio.h>
#define VREF 3.3
EXTI_InitTypeDef   EXTI_InitStructure;  
GPIO_InitTypeDef   GPIO_InitStructure;  
NVIC_InitTypeDef   NVIC_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
USART_ClockInitTypeDef USART_ClockInitStructure;  
unsigned char i=0;
void delay_us(u32 n)  
{  
    u8 j;  
    while(n--)  
    for(j=0;j<10;j++);  
}  
/*********************************/  
void  delay_ms(u32 n)  
{  
    while(n--)  
    delay_us(1000);  
}  

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);
  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);//·äÃùÆ÷
	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);
    USART_InitStructure.USART_BaudRate = BaudRate;//??????

  USART_InitStructure.USART_BaudRate = BaudRate;//usart´«Ê䲨±ÈÌØ  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//Ò»Ö¡´«Êä»ò½ÓÊÕ8bit  
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//ÔÚÖ¡½áβ´«Êä1¸öֹͣλ  
  USART_InitStructure.USART_Parity = USART_Parity_No;//ÆæżʧÄÜ  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//Ó²¼þÁ÷¿ØÖÆʧÄÜ  
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//½ÓÊÕʹÄÜ£¬·¢ËÍʹÄÜ  
  USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;//ʱÖӵ͵çƽ»î¶¯          
  USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;//ʼÖյ͵çƽ         
  USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;//ʱÖÓµÚ¶þ±ßÔµ½øÐÐÊý¾Ý²¶»ñ             
  USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//×îºóһλÊý¾ÝµÄʱÖÓ²»´ÓSCLKÊä³ö  
  USART_ClockInit(USART1, &USART_ClockInitStructure);//ʹÄÜUSART1ʱÖÓ  
  USART_Init(USART1, &USART_InitStructure);//³õʼ»¯USART1  
  USART_Cmd(USART1, ENABLE);//ʹÄÜUSART1ÍâÉè  
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//ʹÄÜÖÐ¶Ï  
  USART_Cmd(USART1, ENABLE);  
  /* Configure four bit for preemption priority */  
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);  
  /* Enable the USART1 Interrupt */  
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;   
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  NVIC_Init(&NVIC_InitStructure);  
}  
void Iic1_Init(void)
{
        GPIO_InitTypeDef GPIO_InitStructure;
        I2C_InitTypeDef I2C_InitStructure;
        
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
       	RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE);
        //PB6-I2C2_SCL PB7-I2C2_SDA PB10-I2C2_SCL PB11-I2C2_SDA
        /* Configure IO connected to IIC*********************/
        GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_10 | GPIO_Pin_11;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
        GPIO_Init(GPIOB, &GPIO_InitStructure);
        
        I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;//ÅäÖÃI2Cģʽ
        I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;//¸Ã²ÎÊýÖ»ÓÐÔÚI2C¹¤×÷ÔÚ¿ìËÙģʽÏÂÓÐÒâÒå
        I2C_InitStructure.I2C_OwnAddress1 = 0xA0;//ÉèÖõÚÒ»¸öÉ豸×ÔÉíµØÖ·
        I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;//ʹÄÜÓ¦´ð
        I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;//µØַΪ7λ
        I2C_InitStructure.I2C_ClockSpeed = 400000;//ʱÖÓËÙÂÊ 400KHZ   
        I2C_Cmd(I2C2, ENABLE);
        I2C_Init(I2C2, &I2C_InitStructure);
        I2C_AcknowledgeConfig(I2C2, ENABLE);    
}


void I2C2_WriteByte(unsigned char id,unsigned char write_address,unsigned char byte)
{
        while(I2C_GetFlagStatus(I2C2, I2C_FLAG_BUSY));
        I2C_GenerateSTART(I2C2,ENABLE);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
        I2C_Send7bitAddress(I2C2,id,I2C_Direction_Transmitter);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
        I2C_SendData(I2C2, write_address);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
        I2C_SendData(I2C2, byte);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
        I2C_GenerateSTOP(I2C2, ENABLE);

        do
        {                
                /* Send START condition */
                I2C_GenerateSTART(I2C2, ENABLE);
                /* Read I2C2 SR1 register */
                /* Send EEPROM address for write */
                I2C_Send7bitAddress(I2C2, 0xA0, I2C_Direction_Transmitter);
        }while(!(I2C_ReadRegister(I2C2, I2C_Register_SR1) & 0x0002));

        /* Clear AF flag */
        I2C_ClearFlag(I2C2, I2C_FLAG_AF);
        /* STOP condition */    
        I2C_GenerateSTOP(I2C2, ENABLE);  
}


unsigned char I2C2_ReadByte(unsigned char  id, unsigned char read_address)
{  
        unsigned char temp;         

        while(I2C_GetFlagStatus(I2C2, I2C_FLAG_BUSY)){}
        I2C_GenerateSTART(I2C2, ENABLE);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
        I2C_Send7bitAddress(I2C2, id, I2C_Direction_Transmitter);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
        I2C_Cmd(I2C2, ENABLE);
        I2C_SendData(I2C2, read_address);  
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
        I2C_GenerateSTART(I2C2, ENABLE);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
        I2C_Send7bitAddress(I2C2, id, I2C_Direction_Receiver);
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
        I2C_AcknowledgeConfig(I2C2, DISABLE);
        I2C_GenerateSTOP(I2C2, ENABLE);
        while(!(I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED)));
        temp = I2C_ReceiveData(I2C2);
        I2C_AcknowledgeConfig(I2C2, ENABLE);
        return temp;
}

void EXTIkeyS1_Config(void)  
{  
  /* Enable GPIOA clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
    
  /* Configure PA.00 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
  
  /* Enable AFIO clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);  
  
  /* Connect EXTI0 Line to PA.00 pin */  
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource8);  
  
  /* Configure EXTI0 line */  
  EXTI_InitStructure.EXTI_Line = EXTI_Line8;  
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;  
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;    
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;  
  EXTI_Init(&EXTI_InitStructure);  
  
  /* Enable and set EXTI0 Interrupt to the lowest priority */  
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;  
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  NVIC_Init(&NVIC_InitStructure);  
}

void EXTI9_5_IRQHandler(void)  //s1
{   
    if(EXTI_GetITStatus(EXTI_Line8) != RESET)  
  {  
     i=0;		
     I2C2_WriteByte(0xA0,0,0);    
     printf("°´¼üÇå:%d \r\n",i); 
     EXTI_ClearITPendingBit(EXTI_Line8);  
	} 
}

void IIC_TEST()
{ 
  while(1){
	printf("IIC²âÊÔ¿ªÊ¼.....\r\n"); 
    i=I2C2_ReadByte(0xA0,0); 
	printf("´ÓµØÖ·0x00¶Á³öÊý¾Ý:%d\r\n",i);
	delay_ms(1000);
	i++;    
    I2C2_WriteByte(0xA0,0,i);
    printf("Ïò0x00дÈëÊý¾Ý:%d\r\n",i);		
	delay_ms(1000);
	printf("Éϵç¼ÆÊý:%d\r\n",i);
	
}
	
}



int main(void)
{
    RCC_Configuration();
    USART_int(115200);
	EXTIkeyS1_Config();  
	printf(" config done...\r\n");
	Iic1_Init();
	delay_ms(1000);
	IIC_TEST();
}

#ifdef  USE_FULL_ASSERT
void assert_failed(uint8_t* file, uint32_t line)
{ 
  while (1)
  {
  }
}

#endif
#ifdef __GNUC__
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */

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

void assert_failed(uint8_t* file, uint32_t line)
{ 
  while (1)
  {
  }
}

#endif

时钟滴答

#include "stm32f10x.h"
#include "stm32_eval.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pc状态
unsigned char Error_Flag=0;
unsigned char zf=0;
GPIO_InitTypeDef   GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;

/**************延时函数*******************/  
void delay_us(u32 n)    
{    
    u8 j;    
    while(n--)    
    for(j=0;j<10;j++);    
}      
void  delay_ms(u32 n)    
{    
    while(n--)    
    delay_us(1000);    
} 

void SysTick_Configuration(void)
{
  /* Setup SysTick Timer for 10 msec interrupts  */
  if (SysTick_Config(48000))              
  { 
    /* Capture error */ 
    while (1);
  }  
 /* Configure the SysTick handler priority */
  NVIC_SetPriority(SysTick_IRQn, 0x0);        
}

void RCC_Configuration(void)
{
	RCC_DeInit();//将RCC寄存器重设为缺省值     
  RCC_HSICmd(ENABLE);//使能内部高速晶振  
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);//HSI晶振返回reset  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);//选择HSI作为系统时钟   
  RCC_HSEConfig(RCC_HSE_OFF);//HSE晶振关  
  RCC_LSEConfig(RCC_LSE_OFF);//LSE晶振关  
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz  
  RCC_PLLCmd(ENABLE);//使能PLL状态  
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);  
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);//ADC时钟=PCLK/4  
  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作为系统时钟  
  while(RCC_GetSYSCLKSource() != 0x08);  
  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);//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;
  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_BaudRate = BaudRate;//usart传输波比特  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//一帧传输或接收8bit  
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//在帧结尾传输1个停止位  
  USART_InitStructure.USART_Parity = USART_Parity_No;//奇偶失能  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//硬件流控制失能  
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//接收使能，发送使能  
  USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;//时钟低电平活动          
  USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;//始终低电平         
  USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;//时钟第二边缘进行数据捕获             
  USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//最后一位数据的时钟不从SCLK输出  
  USART_ClockInit(USART1, &USART_ClockInitStructure);//使能USART1时钟  
  USART_Init(USART1, &USART_InitStructure);//初始化USART1  
  USART_Cmd(USART1, ENABLE);//使能USART1外设  
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//使能中断  
  USART_Cmd(USART1, ENABLE);
}

void delay_18b20(u32 nus)//18b20专属延时
{
	u16 i;
	while(nus--)
		for(i=12;i>0;i--);
}

void Init18B20(void)//初始化
{
  u8 aa=0;
  u8 count =0;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
  Set_B20() ;
  delay_18b20(1);
  Reset_B20();

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

	count=0;
	aa=Read_B20();
    while(!aa && count<100)	 
   {
   	aa=Read_B20();
	count++;
   }
   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;//标识右移一位
   delay_18b20(1);
   Set_B20(); //关闭pc12
   delay_18b20(1);
   tempp=Read_B20();//温度读取
		 
   if(tempp)
   date|=0x80; 
	 delay_18b20(60);
	}
	return(date);
}
void Write18B20(unsigned char date)//读数据
{
	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)
{
  char ID[8];  
  int i;  
  RCC_Configuration();  
  USART_int(115200);  
  SysTick_Configuration();  
  printf(" config done...\r\n");  

  delay_ms(1000);    
  Init18B20();
  Write18B20(0x33); 
  delay_18b20(20);  
  for(i=0;i<8;i++) //大神说这里要用for语句，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++)       
        {  
          printf("%u",ID[i]);
        }  
          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
void assert_failed(uint8_t* file, uint32_t line)
{ 
  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__ */
  
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
void assert_failed(uint8_t* file, uint32_t line)
{ 
  while (1)
  {
  }
}

#endif

#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include   
#include "spi_flash.h"  
#define VREF 3.3  
  
void delay_us(u32 n)  
{  
    u8 j;  
    while(n--)  
    for(j=0;j<10;j++);  
}  
  
void  delay_ms(u32 n)  
{  
    while(n--)  
    delay_us(1000);  
}  
  
  
#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;  
  
char *int_to_string(int number,char *strnum)//整形数据转换为字符型  
{  
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;iLibraries->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