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串口发送信息控制LED闪烁 

#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);  
  
}  

ADC调节RGB亮度

#include "stm32f10x.h"    
#include "stm32_eval.h"    
#include <stdio.h>    
#define VREF 3.3    
GPIO_InitTypeDef   GPIO_InitStructure;    
USART_InitTypeDef USART_InitStructure;    
USART_ClockInitTypeDef USART_ClockInitStructure;    
int volt;    
unsigned int temp0,temp1,temp2;    
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);    
    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_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;//PWM&RGB- PA1 PA2 PA3    
  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 ,PA1???2*/    
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;    
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;    
  TIM_OC2Init(TIM2, &TIM_OCInitStructure);    
    /* PWM1 Mode configuration: Channel3 PA2???3*/    
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;    
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;    
  TIM_OC3Init(TIM2, &TIM_OCInitStructure);    
    /* PWM1 Mode configuration: Channel4 PA3???4*/    
  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);     
#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;//ADC????PB0    
  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?????    
  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);//??:8 ,????    
    /* Enable ADC1 reset calibration register */       
  ADC_ResetCalibration(ADC1);//??ADC1??????    
  /* Check the end of ADC1 reset calibration register */    
  while(ADC_GetResetCalibrationStatus(ADC1));//??????    
  /* Start ADC1 calibration */    
  ADC_StartCalibration(ADC1);//??ADC1??    
  /* Check the end of ADC1 calibration */    
  while(ADC_GetCalibrationStatus(ADC1));//??????    
  /* Start ADC1 Software Conversion */     
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);//??ADC1??????    
    return ADC_GetConversionValue(ADC1);    
}    
void PWM_TEST()    
{    
    /*????volt,??TIM_SetCompare2,TIM_SetCompare3,TIM_SetCompare4 ??????*/    
    unsigned int temp0=volt,temp1=0,temp2=volt;    
    printf("PWM-RGB TEST......\r\n");    
   for(;(temp0>0)||(temp1<volt);temp0--,temp1++)// ???? ????     
   {    
       TIM_SetCompare2(TIM2, temp0);//temp0:volt~0    
     TIM_SetCompare3(TIM2, temp1);//temp1:0~volt    
       delay_us(1000);    
   }    
     for(;(temp0<volt)||(temp2>0);temp0++,temp2--)//????  ????    
     {    
       TIM_SetCompare2(TIM2, temp0);//temp0:0~volt    
       TIM_SetCompare4(TIM2, temp2);//temp2:volt~0    
       delay_us(1000);    
   }    
   for(;(temp1>0)||(temp2<volt);temp1--,temp2++)//???? ????    
   {    
       TIM_SetCompare4(TIM2, temp2);//temp2:0~volt    
       TIM_SetCompare3(TIM2, temp1);//temp1:volt~0    
       delay_us(1000);    
   }    
}    
int main(void)    
{    
  float Volt=0.00;    
    int ADValue = 0;    
  RCC_Configuration();    
  USART_int(115200);    
    ADC_CONFIG();    
    Get_ADC();    
    PWM_Config();    
    delay_ms(1000);    
    printf(" config done...\r\n");    
    while(1)    
    {    
        ADValue = Get_ADC();    
        Volt = VREF*ADValue/4095;    
        /*volt???Volt???? volt?Volt??1000????*/    
        volt=Volt*1000;    
        printf("===============================\r\n");    
        printf("The ADC value is:%d\r\n",ADValue);    
        printf("The Volt is:%f V\r\n",Volt);    
        printf("The volt is:%d \r\n",volt);    
        PWM_TEST();    
        delay_ms(500);    
    }    
}    
    
#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    
{    
    
  USART_SendData(EVAL_COM1, (uint8_t) ch);    
  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  

七彩灯

ADC

IIC

#include "stm32f10x.h"    
#include "stm32_eval.h"    
#include <stdio.h>    
volatile int flag;    
                                                      //板子已将PC12脚接到18B20    
#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)    //关上PC12    
#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)   //打开PC12    
#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)   //读PC12    
unsigned char Error_Flag=0;    
unsigned char zf=0;      
    
/*延时函数 微秒*/      
void delay_us(u32 n)       
{       
    u8 j;       
    while(n--)       
    for(j=0;j<10;j++);       
}       
/*延时函数 毫秒*/      
void  delay_ms(u32 n)       
{       
   while(n--)       
    delay_us(1000);       
}    
    
void SysTick_Configuration(void)    
{    
    /*==========此次作业的部分===========*/    
  if (SysTick_Config(48000))                //SysTick配置。48000/48ms=1ms    
    /*===================================*/    
  {     
    while (1);    
  }      
  NVIC_SetPriority(SysTick_IRQn, 0x0);                       //SysTick中断优先级    
}    
    
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);    
    /*==========此次作业的部分===========*/    
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_6);     //  PLLMul_X就是X的倍数，即8*6=48HMz    
    /*===================================*/    
  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);    
    
        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_18b20(u32 nus)  //18B20时序要求严格精确，为18B20写的延时函数    
{    
    u16 i;                               //这个函数写的貌似是1us    
    while(nus--)             //nus每减一次，i减12次    
        for(i=12;i>0;i--);    
}    
    
void Init18B20(void)    
{    
   u8 aa=0;    
   u8 count =0;    
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  //打开PC时钟    
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;         //选中管脚12    
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;   //开漏输出    
   GPIO_Init(GPIOC, &GPIO_InitStructure);    
   Set_B20() ;         //拉高    
   delay_18b20(1);    
        
     //一、复位：至少480us的低电平信号，当18b20接收到此信号后会回发芯片一个存在脉冲    
   Reset_B20();        //拉低    
   delay_18b20(480);    
        
     //二、存在脉冲：将数据单总线拉高，接收存在脉冲，通信双方达成基本协议，双方开始数据通信    
   Set_B20();     //拉高    
   delay_18b20(480);    
    
    count=0;    
    aa=Read_B20();   //aa为读得的温度、    
        
/*=====我觉得下面这几句用来统计18B20出现错误的次数，次数到99次的时候报错======*/    
    while(!aa && count<100)   //如果温度值和count数都大于100时    
   {    
    aa=Read_B20();           //再次读温度值    
      count++;                 //发生错误了，数值+1    
   }    
         
   if(count>=99)             //如果发生错误的次数大于99次，那么报错，标志位为1    
        Error_Flag=1;    
     else    
          Error_Flag=0;          //报错次数未达到99次，正常工作      
}    
                             //读一个字节    
unsigned char Read18B20(void)//读18b20里的数据，由于是单数据总线，需要一位一位地读    
{      
unsigned char i=0;    
unsigned char date=0;    
u8 tempp;    
   for(i=8;i>0;i--)//循环8次    
   {    
    
   Reset_B20();   //拉低读数    
   date>>=1;      //右移一位    
   delay_18b20(1);    
   Set_B20();      //拉高    
   delay_18b20(1);    
   tempp=Read_B20();  // tempp为读得的温度    
   if(tempp)    
        date|=0x80;        
        delay_18b20(60);    
    }    
    return(date);    
}    
    
void Write18B20(unsigned char date)   //写一个字节    
{    
    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()//    
{       
    unsigned char TUp,TDown;    
    unsigned char fTemp;    
    u8 TT=0;    
    float Temp = 0;    
    Init18B20();    
    Write18B20(0xcc);    // 跳过读取序列号    
    Write18B20(0x44);   //    
    Init18B20();    
    Write18B20(0xcc);   //    
    Write18B20(0xbe);   //      
    TDown = Read18B20();    //低8位    
    TUp = Read18B20();      //高8位       
    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)    
{    
    int i;    
    unsigned char ID1[8];     //定义一个用于18b20id读取和存放的数组    
  RCC_Configuration();    
  USART_int(115200);    
    SysTick_Configuration();    
        
/*==========此次作业的部分===========*/    
  Init18B20 ();        //初始化DS18B20    
    Write18B20(0x33);     //写入“读取序列号”命令     
  delay_18b20 (15);     
      for(i=0;i<8;i++)    
  {    
        ID1[i]=Read18B20();   //读取18b20发回的64位地址    
  }    
/*===================================*/    
        
    printf(" config done...\r\n");    
    delay_ms(1000);    
        
    while(1)    
    {    
    /*==========此次作业的部分===========*/    
        if(flag == 300){         //300us读一次id    
              printf("The id is:");    
                for(i=0;i<8;i++)            
          {         
                printf("%u",ID1[i]);        
                    if(i==7){printf("\r\n");    }    
        }     
      }    
    /*===================================*/    
                
        if(flag == 500){         //500us读一次温度    
            printf("The Temperature is:%f\r\n",Read_T());    
      }    
    }    
}    
    
#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    
{    
  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        
#include "stm32_eval.h"        
      
#include         
#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] ;  //发送缓冲      
uint8_t Rx_Buffer[BufferSize];  //接受缓冲      
__IO uint32_t DeviceID = 0;  //装置ID      
__IO uint32_t FlashID = 0; //闪存ID       
__IO TestStatus TransferStatus1 = FAILED;  //状态测试      
    
    
/**************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 Delay(__IO uint32_t nCount);        
TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);               
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__ */        
           
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