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菜鸟
2014-12-04 20:39:26     打赏
31楼


stm32 pwm控制的跑马灯视频(视频有点长):



视频地址:http://player.youku.com/player.php/sid/XODQxMDU5MTgw/v.swf



PWM控制呼吸灯的代码:

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include 
#define VREF 3.3

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);
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz
  RCC_PLLCmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
*/
	SystemInit();
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
	  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
} 

void USART_int(long BaudRate)
{
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

  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;
  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 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_TEST()
{ unsigned int temp0=0,temp1=0,temp2=0;
	printf("PWM-RGB TEST......\r\n");
	while(1)
	{
		  
		
		for(temp0=0;temp0<2047;temp0++)
		{
		TIM_SetCompare2(TIM2, temp0);
			delay_us(1000);
		}
	if (temp0>=2047)
	{
		delay_ms(2000);
		temp0=0;
	
  }
	
	for(temp1=1;temp1<2047;temp1++)
		{
		TIM_SetCompare3(TIM2, temp1);
			delay_us(1000);
		}
	if (temp1>=2047)
	{
		delay_ms(2000);
		temp1=0;
	
  }


		for(temp2=0;temp2<2047;temp2++)
		{
		TIM_SetCompare4(TIM2, temp2);
			delay_us(1000);
		}
	if (temp2>=2047)
	{
		delay_ms(2000);
		temp2=0;
	
  }
		
	for(temp0=0,temp1=0;temp0<2047||temp1<2047;temp0++,temp1++)
		{
		  TIM_SetCompare2(TIM2, temp0);
				TIM_SetCompare3(TIM2, temp1);
			delay_us(1000);}
	if (temp0>=2047)
	{
		delay_ms(2000);
		temp0=0;
  }
	if (temp1>=2047)
	{
		delay_ms(2000);
		temp1=0;
	
  }
	
	for(temp0=0,temp2=0;temp0<2047||temp2<2047;temp0++,temp2++)
		{
		  TIM_SetCompare2(TIM2, temp0);
				TIM_SetCompare4(TIM2, temp2);
			delay_us(1000);}
	if (temp0>=2047)
	{
		delay_ms(2000);
		temp0=0;
  }
	if (temp2>=2047)
	{
		delay_ms(2000);
		temp2=0;
	
  }
	for(temp1=0,temp2=0;temp1<2047||temp2<2047;temp1++,temp2++)
		{
		  TIM_SetCompare3(TIM2, temp1);
				TIM_SetCompare4(TIM2, temp2);
			delay_us(1000);}
	if (temp1>=2047)
	{
		delay_ms(2000);
		temp1=0;
  }
	if (temp2>=2047)
	{
		delay_ms(2000);
		temp2=0;
	
  }
	
	for(temp0=0,temp1=0,temp2=0;temp0<2047||temp1<2047||temp2<2047;temp0++,temp1++,temp2++)
		{
		  TIM_SetCompare3(TIM2, temp1);
			 TIM_SetCompare2(TIM2, temp0);
				TIM_SetCompare4(TIM2, temp2);
			delay_us(1000);}
			if (temp0>=2047)
	{
		delay_ms(2000);
		temp0=0;
  }
	if (temp1>=2047)
	{
		delay_ms(2000);
		temp1=0;
  }
	if (temp2>=2047)
	{
		delay_ms(2000);
		temp2=0;
	
  }

  
 }

}




int main(void)
{
		
 
  RCC_Configuration();
USART_int(115200);
	
	printf(" config done...\r\n");
	PWM_Config();
	delay_ms(1000);
	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__ */
  


/**
  * @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


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

#endif

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




菜鸟
2014-12-04 20:45:57     打赏
32楼

只有tim2和tim3起到作用,tim7用不了,不知为何..


高工
2014-12-08 22:12:09     打赏
33楼
看看tim7的时钟配置

菜鸟
2014-12-11 20:22:47     打赏
34楼


stm32iic视频:


视频地址:http://player.youku.com/player.php/sid/XODQ2NjcxMzIw/v.swf


stm32iic串口助手里面的内容:


stm32 iic代码:

#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include   
#define VREF 3.3  
unsigned char i=0;  

EXTI_InitTypeDef   EXTI_InitStructure;    
NVIC_InitTypeDef   NVIC_InitStructure;  
GPIO_InitTypeDef   GPIO_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
USART_ClockInitTypeDef USART_ClockInitStructure;  


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);  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
    GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);  
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);  
}   
  
void USART_int(long BaudRate)  
{  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);  
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;  
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
    GPIO_Init(GPIOA, &GPIO_InitStructure);  
    /* PA10 USART1_Rx  */  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;  
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
    GPIO_Init(GPIOA, &GPIO_InitStructure);  
  /* USARTx configured as follow: 
        - BaudRate = 115200 baud   
        - Word Length = 8 Bits 
        - One Stop Bit 
        - No parity 
        - Hardware flow control disabled (RTS and CTS signals) 
        - Receive and transmit enabled 
  */  
  USART_InitStructure.USART_BaudRate = BaudRate;//??????  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit  
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????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 GPIO_INIT()    
{    
   
  RCC_Configuration();    
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11;    
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
GPIO_Init(GPIOC, &GPIO_InitStructure);    
   
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;    
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;    
  GPIO_Init(GPIOB, &GPIO_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;  
        I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;  
        I2C_InitStructure.I2C_OwnAddress1 = 0xA0;  
        I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;  
        I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;  
        I2C_InitStructure.I2C_ClockSpeed = 400000;         
        I2C_Cmd(I2C2, ENABLE);     
        I2C_Init(I2C2, &I2C_InitStructure);  
        I2C_AcknowledgeConfig(I2C2, ENABLE);      
}  
  
  
/**********************************************************************/  
/*IIC?????                                                                               */  
/*                                                                                                                                          */  
/**********************************************************************/  
void I2C2_WriteByte(unsigned char id,unsigned char write_address,unsigned char byte)  
{  
        while(I2C_GetFlagStatus(I2C2, I2C_FLAG_BUSY));//?????????-??????  
        I2C_GenerateSTART(I2C2,ENABLE);//??i2c2??????  
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));//??????i2c???????  
        I2C_Send7bitAddress(I2C2,id,I2C_Direction_Transmitter);//?????i2c???????  
        while(!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));  
        I2C_SendData(I2C2, write_address);//??i2c??????  
        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);//??i2c2??????  
  
        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));//?????i2c????????  
  
        /* 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 anjian3_Config(void)  
{  
  /* Enable GPIOA clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
    
  /* Configure PA.00 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;  
  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_PinSource10);  
  
  /* Configure EXTI0 line */  
  EXTI_InitStructure.EXTI_Line = EXTI_Line10;  
  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 = EXTI15_10_IRQn;  
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  NVIC_Init(&NVIC_InitStructure);  
}  

void IIC_TEST()  
{  
   printf("  config done...\r\n");    
    i = I2C2_ReadByte(0xA0,0);  
    i++;      
    printf("向地址第%d次写入数据
\n",i);    
    I2C2_WriteByte(0xA0,0,i);    
      printf("向地址第%d次读出数据
\n",i);    
    printf("第%d次上电....\r\n",i);  
        
    
} 

int main(void)    
{    
   

  RCC_Configuration();    
  anjian3_Config();  
  GPIO_INIT();    
  USART_int(115200);    
  Iic1_Init();  
  IIC_TEST();  

      
}    

void EXTI15_10_IRQHandler(void)  
{  
  if(EXTI_GetITStatus(EXTI_Line10) != RESET)  
  {  
        i=0;  
        I2C2_WriteByte(0xA0,0,0); 
				delay_ms(200);
      printf("上电立即清0\r\n",i);  
    /* Clear the  EXTI line 8 pending bit */  
    EXTI_ClearITPendingBit(EXTI_Line10);  
  }  
}  
  
  
  
#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;    
}    






高工
2014-12-16 15:57:50     打赏
35楼

嗯,有点意思,注释!注释!


菜鸟
2014-12-23 21:55:47     打赏
36楼

  stm32  ADC--PWM 控制跑马灯视频:




视频地址:http://player.youku.com/player.php/sid/XODU0MTE2ODcy/v.swf

stm32 串口调试助手内容:


ADC--PWM 控制跑马灯代码:

#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include 
#define VREF 3.3  
int temp0,temp1,temp2;  
  
/*???? ??*/    
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);     
}   
  
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 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);  
  
    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 GPIO_INIT()     
{    
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  //RCC_APB2Periph_GPIOB  ??GPIOB???      ENABLE\DISABLE   ??or??    
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10;//????PC8-10   
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;         //??:????  
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;          //??:Out_PP????,????,?? !!!        
GPIO_Init(GPIOC, &GPIO_InitStructure);    
}   
  
void ADC_CONFIG(){  
    ADC_InitTypeDef ADC_InitStructure;  
    #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL)  
  /* ADCCLK = PCLK2/2 */  
  RCC_ADCCLKConfig(RCC_PCLK2_Div2);   
#else  
  /* ADCCLK = PCLK2/4 */  
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);   
#endif  
ADC_DeInit(ADC1);  
  /* Enable ADC1 and GPIOC clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOB, ENABLE);  
      
    /* Configure PB0 (ADC Channel14) as analog input -------------------------*/  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;  
  GPIO_Init(GPIOB, &GPIO_InitStructure);  
        
  /* ADC1 configuration ------------------------------------------------------*/  
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;  
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;  
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;  
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;  
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  
  ADC_InitStructure.ADC_NbrOfChannel = 1;  
  ADC_Init(ADC1, &ADC_InitStructure);  
  
  /* Enable ADC1 DMA */  
  ADC_DMACmd(ADC1, ENABLE);  
    
  /* Enable ADC1 */  
  ADC_Cmd(ADC1, ENABLE);  
  
}  
  
int Get_ADC(){  
     /* ADC1 regular channel configuration */   
  ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_55Cycles5);  
    /* Enable ADC1 reset calibration register */     
  ADC_ResetCalibration(ADC1);  
  /* Check the end of ADC1 reset calibration register */  
  while(ADC_GetResetCalibrationStatus(ADC1));  
  
  /* Start ADC1 calibration */  
  ADC_StartCalibration(ADC1);  
  /* Check the end of ADC1 calibration */  
  while(ADC_GetCalibrationStatus(ADC1));  
       
  /* Start ADC1 Software Conversion */   
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);  
      
    return ADC_GetConversionValue(ADC1);  
}  
  
void PWM_Config()  
{uint16_t PrescalerValue = 0;  
    TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;//?????  
  TIM_OCInitTypeDef  TIM_OCInitStructure;  
  
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);//??TIM2,TIM2??AP1?  
  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;//???3???,????  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
//  GPIO_SetBits(GPIOA,GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3);     
//  delay_ms(20);     
    TIM_Cmd(TIM2, ENABLE);  
  
  PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;//????TIM2  
  /* Time base configuration */  
  TIM_TimeBaseStructure.TIM_Period = 0x0FFE;  
  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;//?IM_Pulse-?????????????????,???0x0000-0xFFFF??                                             
  TIM_OC2Init(TIM2, &TIM_OCInitStructure);  
      
    /* PWM1 Mode configuration: Channel3 */  
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
  TIM_OCInitStructure.TIM_Pulse = 0xFFFF;//0x0000??,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);//reload-???????  
}  
void PWM_TEST()  
{    int ADValue = 0; 
		ADValue = Get_ADC();  
    printf("PWM-RGB TEST......\r\n");  
	TIM_SetCompare2(TIM2,ADValue/2);delay_ms(100); 
    TIM_SetCompare3(TIM2,ADValue--);delay_ms(100);     
   TIM_SetCompare4(TIM2,ADValue++);delay_ms(100);   

 
  
}  
  
  

int main(void)  
{  
    float Volt=0.00;  
    int ADValue = 0;  
  
  RCC_Configuration();  
  USART_int(115200);//
    GPIO_INIT();      
    ADC_CONFIG();  
    printf(" config done...\r\n");  
    Get_ADC();  
    delay_ms(1000);  
    PWM_Config();  
    delay_ms(1000);  
      
    while(1)  
    {  
        ADValue = Get_ADC();   
        Volt = VREF*ADValue/4095;//????  
        printf("===============================\r\n");  
        printf("The ADC value is:%d\r\n",ADValue);  
        printf("The Volt is:%f V\r\n",Volt); 
        PWM_TEST()  ;			
			 delay_ms(100) ;
            
 
}  
}  
  
#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 





菜鸟
2014-12-23 22:06:39     打赏
37楼

菜鸟
2014-12-23 22:28:08     打赏
38楼









焊接的水平不是很好...


菜鸟
2014-12-25 11:14:47     打赏
39楼

18b20:

串口助手的内容(读取温度与地址):

系统滴答时钟读取18b20的地址与温度代码:


  
/* Includes ------------------------------------------------------------------*/  
#include "stm32f10x.h"  
#include "stm32_eval.h"   
#include  <stdio.h> 

volatile int flag;  
#define Set_B20()    GPIO_SetBits(GPIOC, GPIO_Pin_12)      //上拉关闭PC12  
#define Reset_B20()  GPIO_ResetBits(GPIOC, GPIO_Pin_12)  //下拉打开PC12  
#define Read_B20()   GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_12)  //读PC12状态  
unsigned char Error_Flag=0;  
unsigned char zf=0;  
void SysTick_Configuration(void)  
{  
  /* Setup SysTick Timer for 10 msec interrupts  */  
  if (SysTick_Config(48000))                //SysTick配置  
  {   
    /* Capture error */   
    while (1);  
  }    
 /* Configure the SysTick handler priority */  
  NVIC_SetPriority(SysTick_IRQn, 0x0);                       //SysTick中断优先级  
}  
  
  
/** @addtogroup STM32F10x_StdPeriph_Examples 
  * @{ 
  */  
  
/** @addtogroup EXTI_Config 
  * @{ 
  */   
  
/* Private typedef -----------------------------------------------------------*/  
/* Private define ------------------------------------------------------------*/  
/* Private macro -------------------------------------------------------------*/  
/* Private variables ---------------------------------------------------------*/  
GPIO_InitTypeDef   GPIO_InitStructure;  //结构体的命名
USART_InitTypeDef USART_InitStructure;  //结构体的命名
USART_ClockInitTypeDef USART_ClockInitStructure;  //结构体的命名
  
void RCC_Configuration(void)  
{  
  RCC_DeInit();                 //将外设RCC的所有寄存器重新设为缺省值    
      
  RCC_HSICmd(ENABLE);            //使能内部高速晶振    
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);      //当SHI晶振就绪则重新设定   
    
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);      //设置系统时钟,选择SHI时钟为系统时钟  
    
  RCC_HSEConfig(RCC_HSE_OFF);     //设置外部高速晶振,HSE晶振OFF   
  RCC_LSEConfig(RCC_LSE_OFF);      //设置外部低速晶振,LSE晶振OFF    
      
    //******配置PLL时钟频率为48MHZ*******//  
      
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_8);    //RCC_PLLMul_x 即设置PLL时钟频率为 6*x MHz  
      
  //************************************//    
      
  RCC_PLLCmd(ENABLE);             ////*******************使能PLL   
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);        //PLL就绪    
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);                     //  ADC时钟=PCLK/2    
  RCC_PCLK2Config(RCC_HCLK_Div1);                       //  APB2时钟=HCLK   
  RCC_PCLK1Config(RCC_HCLK_Div2);            /// APB1时钟=HCLK/2    
  RCC_HCLKConfig(RCC_SYSCLK_Div1);         //  AHB时钟=系统时钟   
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);       // 选择PLL为系统时钟    
  while(RCC_GetSYSCLKSource() != 0x08);        //当PLL不是系统时钟   
  
      
//  SystemInit();  
      
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE); //使能APB2外设时钟/****GPIOD时钟和功能复用IO时钟***/    
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG    SW_DP使能    
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;         // //选择设置GPIO管脚   
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  ////设置管脚速率    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;     ////设置管脚工作状态,此为推挽输出    
  GPIO_Init(GPIOD, &GPIO_InitStructure);    //初始化GPIOD   
    GPIO_ResetBits(GPIOD,GPIO_Pin_2);     //上拉关闭蜂鸣器    
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);  
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;//LED  
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
    GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); // GPIOC.0到GPIOC.7输出胃叩缙姜
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); //使能TIM2时钟  
}   
  
void USART_int(long BaudRate)  
{  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//使能GPIOA、USART1外设时钟  
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;  
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  //GPIO的输出速率为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; //使能外设GPIOC端口时钟
    GPIO_Init(GPIOA, &GPIO_InitStructure);  
  /* USARTx configured as follow: 
        - BaudRate = 115200 baud   
        - Word Length = 8 Bits 
        - One Stop Bit 
        - No parity 
        - Hardware flow control disabled (RTS and CTS signals) 
        - Receive and transmit enabled 
  */  
  USART_InitStructure.USART_BaudRate = BaudRate;//设置USART传输波特率  BaudRate = 9600 可以直接写9600  
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//一帧传输或者接收的数据位数为8bit  
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//在帧结尾传输一个停止位  
  USART_InitStructure.USART_Parity = USART_Parity_No;//奇偶模式失能  
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//硬件流控制失能  
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//使能接收发模式  
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;    //时钟低电平活动  
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      //引脚时钟输出低电平时钟  
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;     //第二个时钟边沿开始捕获数据  
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;//最后一位数据的时钟脉冲不从SCLK输出  
    USART_ClockInit(USART1, &USART_ClockInitStructure); //引用结构体的成员 
  USART_Init(USART1, &USART_InitStructure);//USART1初始化  
  USART_Cmd(USART1, ENABLE);//使能USART1时钟外设  
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//使能接受中断  
 USART_Cmd(USART1, ENABLE);  //使能 USART
}  
  
void delay_18b20(u32 nus)    //18b20按照严格的时序工作,这是特定的一个延时函数(自定义)
{  
    u16 i;  
    while(nus--)  
        for(i=12;i>0;i--);  
}  
  
  
      
void Init18B20(void)  //18B20初始化  
{  
   u8 aa=0;  
   u8 count =0;  
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//使能PC时钟  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;  //配置端口GPIOC.12
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;//开漏输出  
  GPIO_Init(GPIOC, &GPIO_InitStructure); //引用结构体的变量 
   Set_B20() ;   // GPIO_SetBits(GPIOC, GPIO_Pin_12)   
   delay_18b20(1);  
   Reset_B20();  //重置18B20
	
  
   delay_18b20(480);  
   Set_B20();  
//  delay_18b20(500);  
   delay_18b20(480);  
  
    count=0;  
    aa=Read_B20();         //温度读取  
    /****个人认为限制温度不超过99度,作为一个保护*/  
    while(!aa && count<100)  //判断aa的非和计数器count的值是否都小于100   
   {  
    aa=Read_B20();  //
    count++;          //count自加1 
   }  
   if(count>=99)  
        Error_Flag=1;  //错误返回值1
    else  
        Error_Flag=0;  //错误返回值0
     
}  
    
unsigned char Read18B20(void)//按位读取数据  
{    
unsigned char i=0;  
unsigned char date=0;  
u8 tempp;  
   for(i=8;i>0;i--)  
   {  
  
   Reset_B20();   //打开PC12  
   date>>=1;    //标志右移一位  
   delay_18b20(1);  
   Set_B20();    //关闭  
    delay_18b20(1);  
   tempp=Read_B20();   //读取温度  
  
   if(tempp)   //判断tempp是否为1
        date|=0x80;     // 1000 0000   将最高位填1 ,然后右移,每次最高位由0变1,使8位全部传递完毕 0xff = 1111 1111  
    delay_18b20(60);  //延时
    }  
    return(date);  //返回值是无符号的字符型的类型 date
}  
void Write18B20(unsigned char date)//向18b20写数据  
{  
    unsigned char i=0;  
  
    for (i=8; i>0; i--)  
    {  
        Reset_B20();   
        delay_18b20(1);           
        if(date & 0x01)           
        {     
            Set_B20();  
        }  
        else  
        {   Reset_B20();}  
        delay_18b20(60);  
        date>>=1;        
         Set_B20();  
         delay_18b20(1);  
              
    }  
    delay_18b20(15);  
}  
  
 float Read_T()//读温度  
{     
        unsigned char TUp,TDown;  
    unsigned char fTemp;  
    u8 TT=0;  
  
     float Temp = 0;  
    Init18B20();  
    Write18B20(0xcc);       
    Write18B20(0x44);      
    Init18B20();  
    Write18B20(0xcc);     
    Write18B20(0xbe);     
    TDown = Read18B20();      
    TUp = Read18B20();        
      
    if(TUp>0x7f)        
    {  
        TDown=~TDown;    
        TUp=~TUp+1;   
        TUp/=8;            
        zf=1;           
    }  
    else  
        zf=0;       
  
    fTemp=TDown&0x0f;         
    TUp<<=4;  
    TDown>>=4;  
    TT=TUp|TDown;  
    Temp=TT+(float)fTemp/16;          
    return(Temp);  
}  
                                   
int main(void)  
{  
          
  /*!< At this stage the microcontroller clock setting is already configured,  
       this is done through SystemInit() function which is called from startup 
       file (startup_stm32f10x_xx.s) before to branch to application main. 
       To reconfigure the default setting of SystemInit() function, refer to 
       system_stm32f10x.c file 
     */       
         
  /* System Clocks Configuration */  
    char AddressID[10];  //定义一个字符型数组,长度为10
    int i;  
  RCC_Configuration();  //配置RCC时钟
  USART_int(115200);  //波特率的设置
    SysTick_Configuration();  //系统滴答时钟的调用
    printf(" config done...\r\n"); //打印输出 
     //delay_ms(1000);  
      
    Init18B20();     //初始化18b20;
    Write18B20(0x34);  //写入读取地址的命令  
    delay_18b20(20);     //延时
 
    while(1)  
    {  
        if(flag == 300)  //判断flag是否等于300
        {  
            printf(" the  AddressID is:") ;   
            for(i=0;i<10;i++)     //字符不能直接输出,要按位输出  
        {  
					AddressID[i] = Read18B20();//读取地址  
          printf("%u", AddressID[i]);//输出地址  
        }  
            printf("\r\n")  ; //换行 
        }  
        if(flag == 500)  //判断flag是否等于500
        {             
            printf("The Temperature is:%f\r\n",Read_T());//读取温度并输出  
					
            printf("===================================================\r\n");  
    }  
    }  
}  
  
  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/** 
  * @} 
  */   
  
/** 
  * @} 
  */   
  
#ifdef __GNUC__  
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf 
     set to 'Yes') calls __io_putchar() */  
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)  
#else  
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)  
#endif /* __GNUC__ */  
    
  
  
/** 
  * @brief  Retargets the C library printf function to the USART. 
  * @param  None 
  * @retval None 
  */  
PUTCHAR_PROTOTYPE  
{  
  /* Place your implementation of fputc here */  
  /* e.g. write a character to the USART */  
  USART_SendData(EVAL_COM1, (uint8_t) ch);  
  
  /* Loop until the end of transmission */  
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)  
  {}  
  
  return ch;  
}  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  

 



菜鸟
2014-12-25 11:58:12     打赏
40楼

spi串口助手:



spi从adc中获取数值的代码:

/**
  ******************************************************************************
  * @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.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include <stdio.h>
#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;i<n/2;i++)
{
temp=*(strnum+j+i-n);
*(strnum+j+i-n)=*(strnum+j-i-1);
*(strnum+j-i-1)=temp;
}
strnum[n]='\0';
return strnum;
}

void RCC_Configuration(void)
{
  RCC_DeInit();
    
  RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
  
  RCC_HSEConfig(RCC_HSE_OFF);
  RCC_LSEConfig(RCC_LSE_OFF);
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz
  RCC_PLLCmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);

	
	//SystemInit();
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
	  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
} 

void USART_int(long BaudRate)
{
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//??????
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????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);
}

TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
{
  while(BufferLength--)
  {
    if(*pBuffer1 != *pBuffer2)
    {
      return FAILED;
    }

    pBuffer1++;
    pBuffer2++;
  }
  return PASSED;
}

void Delay(__IO uint32_t nCount)
{
  for(; nCount != 0; nCount--);
}

void ADC_CONFIG(){
	ADC_InitTypeDef ADC_InitStructure;
	#if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL)
  /* ADCCLK = PCLK2/2 */
  RCC_ADCCLKConfig(RCC_PCLK2_Div2); 
#else
  /* ADCCLK = PCLK2/4 */
  RCC_ADCCLKConfig(RCC_PCLK2_Div4); 
#endif
ADC_DeInit(ADC1);
  /* Enable ADC1 and GPIOC clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOB, ENABLE);
	
	/* Configure PB0 (ADC Channel14) as analog input -------------------------*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
	
  
  /* ADC1 configuration ------------------------------------------------------*/
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfChannel = 1;
  ADC_Init(ADC1, &ADC_InitStructure);


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

}

int Get_ADC(){
	 /* ADC1 regular channel configuration */ 
  ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_55Cycles5);
	/* Enable ADC1 reset calibration register */   
  ADC_ResetCalibration(ADC1);
  /* Check the end of ADC1 reset calibration register */
  while(ADC_GetResetCalibrationStatus(ADC1));

  /* Start ADC1 calibration */
  ADC_StartCalibration(ADC1);
  /* Check the end of ADC1 calibration */
  while(ADC_GetCalibrationStatus(ADC1));
     
  /* Start ADC1 Software Conversion */ 
  ADC_SoftwareStartConvCmd(ADC1, ENABLE);
	
	return ADC_GetConversionValue(ADC1);
}


void SPI_TEST()
{
	printf("\r\n这是一个2M SPI总线flash(W25X16)测试 \r\n");
	SPI_FLASH_Init();
	/* Get SPI Flash Device ID */
	DeviceID = SPI_FLASH_ReadDeviceID();
	Delay( 200 );
	/* Get SPI Flash ID */
	FlashID = SPI_FLASH_ReadID();
	printf("\r\n FlashID is 0x%X,  Manufacturer Device ID is 0x%X\r\n", FlashID, DeviceID);
	/* Check the SPI Flash ID */
	if (FlashID == sFLASH_ID)  /* #define  sFLASH_ID  0xEF3015 */
	{
		printf("\r\n 检测到华邦flash W25X16 !\r\n");
		/* Erase SPI FLASH Sector to write on */
		SPI_FLASH_SectorErase(FLASH_SectorToErase);	 	 
		
		/*写缓存并发送*/
		SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);
		printf("\r\n写入的数据是:%s \r\t", Tx_Buffer);
		
		/* 读出刚才写入的数据*/
		SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);
		printf("\r\n读出的数据是:%s \r\n", Rx_Buffer);
		
		/* ????????????????? */
		TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
		
		if( PASSED == TransferStatus1 )
		{    
			printf("\r\n 2M SPI总线flash(W25X16)测试成功!\n\r");
		}
		else
		{        
			printf("\r\n 2M SPI总线flash(W25X16)测试失败!\n\r");
		}
	}// if (FlashID == sFLASH_ID)
	else
	{    
		printf("\r\n 未检测到 W25X16 ID!\n\r");
	}
	
	SPI_Flash_PowerDown();  
	printf("\r\n=================================================\n\r");
}
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
		
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     
       
  /* System Clocks Configuration */
	int i=0;
	int ADValue = 0;
	 char Buffer[100];
  RCC_Configuration();
  USART_int(115200);
 printf(" config done...\r\n");
	ADC_CONFIG();
	delay_ms(1000);
	while(1)
	{
		
		for(i=0;i<5;i++)
		{ 
			  ADValue = Get_ADC();
			  int_to_string(ADValue,Buffer);
			Tx_Buffer[i]=Buffer[i];
    }
	  SPI_TEST();
		delay_ms(1000);
	}
}




#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

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

#endif

/**
  * @}
  */ 

/**
  * @}
  */ 

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


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

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

  return ch;
}

#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

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

#endif

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

 


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