EEPW论坛

ADC

#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在通道2*/  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;  
  TIM_OC2Init(TIM2, &TIM_OCInitStructure);  
    /* PWM1 Mode configuration: Channel3 PA2在通道3*/  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;  
  TIM_OC3Init(TIM2, &TIM_OCInitStructure);  
    /* PWM1 Mode configuration: Channel4 PA3在通道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所在端口PB0  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;//模拟输入模式  
  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数据右对齐  
  ADC_InitStructure.ADC_NbrOfChannel = 1;//ADC通道数为1  
  ADC_Init(ADC1, &ADC_InitStructure);//初始化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);//通道：8 ，采样时间  
    /* Enable ADC1 reset calibration register */     
  ADC_ResetCalibration(ADC1);//重置ADC1的校准寄存器  
  /* Check the end of ADC1 reset calibration register */  
  while(ADC_GetResetCalibrationStatus(ADC1));//确认重置完毕  
  /* Start ADC1 calibration */  
  ADC_StartCalibration(ADC1);//开始ADC1校准  
  /* Check the end of ADC1 calibration */  
  while(ADC_GetCalibrationStatus(ADC1));//确认校准完毕  
  /* Start ADC1 Software Conversion */   
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);//使能ADC1软件转换功能  
    return ADC_GetConversionValue(ADC1);  
}  
void PWM_TEST()  
{  
    /*全局变量volt，控制TIM_SetCompare2，TIM_SetCompare3，TIM_SetCompare4 的第二个参数*/  
    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的值由Volt直接决定 volt是Volt乘以1000的整型值*/  
        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  

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);  
  
}  

串口控制led

时钟滴答视频

时钟滴答代码

/** 
  ****************************************************************************** 
  * @file    EXTI/EXTI_Config/main.c  
  * @author  MCD Application Team 
  * @version V3.5.0 
  * @date    08-April-2011 
  * @brief   Main program body 
  ****************************************************************************** 
  * @attention 
  * 
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS 
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE 
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY 
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING 
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE 
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. 
  * 
  * 
 
    © COPYRIGHT 2011 STMicroelectronics 
 
****************************************************************************** 
  */   
  
/* Includes ------------------------------------------------------------------*/  
#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include "delay.h"  
#include   
volatile int flag;  
#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)      //????PC12  
#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)  //????PC12  
#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)  //?PC12??  
unsigned char Error_Flag=0;  
unsigned char zf=0;  
void SysTick_Configuration(void)  
{  
  /* Setup SysTick Timer for 10 msec interrupts  */  
  if (SysTick_Config(48000))                //SysTick??  
  {   
    /* Capture error */   
    while (1);  
  }    
 /* Configure the SysTick handler priority */  
  NVIC_SetPriority(SysTick_IRQn, 0x0);                       //SysTick?????  
}  
  
  
/** @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???????    
      
  RCC_HSICmd(ENABLE);            //????????    
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);      //?SHI?????????   
    
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);      //??????,??SHI???????  
    
  RCC_HSEConfig(RCC_HSE_OFF);     //????????,HSE??OFF   
  RCC_LSEConfig(RCC_LSE_OFF);      //????????,LSE??OFF    
      
    //******??PLL?????48MHZ*******//  
      
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_8);    //RCC_PLLMul_x ???PLL????? 6*x MHz  
      
  //************************************//    
      
  RCC_PLLCmd(ENABLE);             ////*******************??PLL   
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);        //PLL??    
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);                     //  ADC??=PCLK/2    
  RCC_PCLK2Config(RCC_HCLK_Div1);                       //  APB2??=HCLK   
  RCC_PCLK1Config(RCC_HCLK_Div2);            /// APB1??=HCLK/2    
  RCC_HCLKConfig(RCC_SYSCLK_Div1);         //  AHB??=????   
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);       // ??PLL?????    
  while(RCC_GetSYSCLKSource() != 0x08);        //?PLL??????   
  
      
//  SystemInit();  
      
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); //??APB2????/****GPIOD???????IO??***/    
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    SW_DP??    
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??   
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  ////??????    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     ////????????,??????    
  GPIO_Init(GPIOD, &GPIO_InitStructure);    //???GPIOD   
    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;//LED  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
    GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);  
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //??TIM2??  
}   
  
void USART_int(long BaudRate)  
{  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//??GPIOA?USART1????  
       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?????  BaudRate = 9600 ?????9600  
  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;//?????????????SCLK??  
    USART_ClockInit(USART1, &USART_ClockInitStructure);  
  USART_Init(USART1, &USART_InitStructure);//USART1???  
  USART_Cmd(USART1, ENABLE);//??USART1????  
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//??????  
 USART_Cmd(USART1, ENABLE);  
}  
  
void delay_18b20(u32 nus)    //18b20?????????,??????  
{  
    u16 i;  
    while(nus--)  
        for(i=12;i>0;i--);  
}  
  
  
      
void Init18B20(void)  //18B20???  
{  
   u8 aa=0;  
   u8 count =0;  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//??PC??  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//????  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
   Set_B20() ;   // GPIO_SetBits(GPIOC, GPIO_Pin_12)   
   delay_18b20(1);  
   Reset_B20();  
  
   delay_18b20(480);  
   Set_B20();  
//  delay_18b20(500);  
   delay_18b20(480);  
  
    count=0;  
    aa=Read_B20();         //????  
    /****???????????99?,??????*/  
    while(!aa && count<100)     
   {  
    aa=Read_B20();  
    count++;          //????for()?while??  
   }  
   if(count>=99)  
        Error_Flag=1;  
    else  
        Error_Flag=0;  
     
}  
    
unsigned char Read18B20(void)//??????  
{    
unsigned char i=0;  
unsigned char date=0;  
u8 tempp;  
   for(i=8;i>0;i--)  
   {  
  
   Reset_B20();   //??PC12  
   date>>=1;    //??????  
   delay_18b20(1);  
   Set_B20();    //??  
    delay_18b20(1);  
   tempp=Read_B20();   //????  
  
   if(tempp)  
        date|=0x80;     // 1000 0000   ?????1 ,????,??????0?1,?8??????? 0xff = 1111 1111  
    delay_18b20(60);  
    }  
    return(date);  
}  
void Write18B20(unsigned char date)//???  
{  
    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);       
    Write18B20(0x44);      
    Init18B20();  
    Write18B20(0xcc);     
    Write18B20(0xbe);     
    TDown = Read18B20();      
    TUp = Read18B20();        
      
    if(TUp>0x7f)        
    {  
        TDown=~TDown;    
        TUp=~TUp+1;   
        TUp/=8;            
        zf=1;           
    }  
    else  
        zf=0;       
  
    fTemp=TDown&0x0f;         
    TUp<<=4;  
    TDown>>=4;  
    TT=TUp|TDown;  
    Temp=TT+(float)fTemp/16;          
    return(Temp);  
}  
                                   
int main(void)  
{  
          
  /*!< At this stage the microcontroller clock setting is already configured,  
       this is done through SystemInit() function which is called from startup 
       file (startup_stm32f10x_xx.s) before to branch to application main. 
       To reconfigure the default setting of SystemInit() function, refer to 
       system_stm32f10x.c file 
     */       
         
  /* System Clocks Configuration */  
    char ID[8];  
    int i;  
  RCC_Configuration();  
  USART_int(115200);  
    SysTick_Configuration();  
    printf(" config done...\r\n");  
  delay_ms(1000);  
      
    Init18B20();     //???  
    Write18B20(0x33);  //?????????  
    delay_18b20(20);  
    for(i=0;i<8;i++)   //?????for?? ????printf("event 1 oc......\r\n")??,??????  
    {  
        ID[i] = Read18B20();//????  
    }  
      
    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());//???????  
            printf("===================================================\r\n");  
    }  
    }  
}  
  
  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/** 
  * @} 
  */   
  
/** 
  * @} 
  */   
  
#ifdef __GNUC__  
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf 
     set to 'Yes') calls __io_putchar() */  
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)  
#else  
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)  
#endif /* __GNUC__ */  
    
  
  
/** 
  * @brief  Retargets the C library printf function to the USART. 
  * @param  None 
  * @retval None 
  */  
PUTCHAR_PROTOTYPE  
{  
  /* Place your implementation of fputc here */  
  /* e.g. write a character to the USART */  
  USART_SendData(EVAL_COM1, (uint8_t) ch);  
  
  /* Loop until the end of transmission */  
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)  
  {}  
  
  return ch;  
}  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/  

SPI从adc中获取数值

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

	© COPYRIGHT 2011 STMicroelectronics

****************************************************************************** 
  */   
  
/* Includes ------------------------------------------------------------------*/  
#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include   
#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)//??????????  
{  
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  
  
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/