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2014-11-27 23:12:18     打赏
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/** 
  ****************************************************************************** 
  * @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>  
/** @addtogroup STM32F10x_StdPeriph_Examples 
  * @{ 
  */  
  
/** @addtogroup EXTI_Config 
  * @{ 
  */   
  
/* Private typedef -----------------------------------------------------------*/  
/* Private define ------------------------------------------------------------*/  
/* Private macro -------------------------------------------------------------*/  
/* Private variables ---------------------------------------------------------*/  
EXTI_InitTypeDef   EXTI_InitStructure;  
GPIO_InitTypeDef   GPIO_InitStructure;  
NVIC_InitTypeDef   NVIC_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
USART_ClockInitTypeDef USART_ClockInitStructure;  
/* Private function prototypes -----------------------------------------------*/  
void EXTIkeyS1_Config(void);  
void EXTIkeyS2_Config(void);  
void EXTIkeyS3_Config(void);  
void EXTIkeyS4_Config(void);  
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  
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_ResetBits(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 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);  
   
  /* 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);  
}  
  
/* Private functions ---------------------------------------------------------*/  
  
/** 
  * @brief  Main program. 
  * @param  None 
  * @retval None 
  */  
int main(void)  
{RCC_Configuration();  
    
  /* Configure PA.00 in interrupt mode */  
  EXTIkeyS1_Config();  
  
  /* Configure PB.09 or PG.08 in interrupt mode */  
  EXTIkeyS2_Config();  
    
    EXTIkeyS3_Config();  
    EXTIkeyS4_Config();  
      
    USART_int(115200);  
    printf("Config done,waiting for interrupt......\r\n");  
            
  while (1)  
  {  
  }  
}  
  
/** 
  * @brief  Configure PA.00 in interrupt mode 
  * @param  None 
  * @retval None 
  */  
void EXTIkeyS1_Config(void)  
{  
  /* Enable GPIOA clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
    
  /* Configure PA.00 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
  
  /* Enable AFIO clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);  
  
  /* Connect EXTI0 Line to PA.00 pin */  
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource8);  
  
  /* Configure EXTI0 line */  
  EXTI_InitStructure.EXTI_Line = EXTI_Line8;  
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;  
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;    
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;  
  EXTI_Init(&EXTI_InitStructure);  
  
  /* Enable and set EXTI0 Interrupt to the lowest priority */  
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;  
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  NVIC_Init(&NVIC_InitStructure);  
}  
  
/** 
  * @brief  Configure PB.09 or PG.08 in interrupt mode 
  * @param  None 
  * @retval None 
  */  
void EXTIkeyS2_Config(void)  
{  
  /* Enable GPIOB clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
  
  /* Configure PB.09 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
  
  /* Enable AFIO clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);  
  /* Connect EXTI9 Line to PB.09 pin */  
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource9);  
  
  /* Configure EXTI9 line */  
  EXTI_InitStructure.EXTI_Line = EXTI_Line9;  
  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 EXTI9_5 Interrupt to the lowest priority */  
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;  
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;  
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
  
  NVIC_Init(&NVIC_InitStructure);  
}  
  
void EXTIkeyS3_Config(void)  
{  
  /* Enable GPIOB clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
  
  /* Configure PB.10 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
  
  /* Enable AFIO clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);  
  /* Connect EXTI10 Line to PB.09 pin */  
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource10);  
  
  /* Configure EXTI10 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 EXTI15_10 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 EXTIkeyS4_Config(void)  
{  
  /* Enable GPIOB clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
  
  /* Configure PB.11 pin as input floating */  
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;  
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  
  GPIO_Init(GPIOC, &GPIO_InitStructure);  
  
  /* Enable AFIO clock */  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);  
  /* Connect EXTI11 Line to PB.09 pin */  
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource11);  
  
  /* Configure EXTI11 line */  
  EXTI_InitStructure.EXTI_Line = EXTI_Line11;  
  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 EXTI15_10 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);  
}  
  
  
/******************************************************************************/  
/*            STM32F10x Peripherals Interrupt Handlers                        */  
/******************************************************************************/  
  
/** 
  * @brief  This function handles External lines 9 to 5 interrupt request. 
  * @param  None 
  * @retval None 
  */  
void EXTI9_5_IRQHandler(void)  
{  
  if(EXTI_GetITStatus(EXTI_Line8) != RESET)  
  {  
    /* Toggle LED2 */  
     GPIO_SetBits(GPIOC,GPIO_Pin_3|GPIO_Pin_7);  
printf("S1 interrupt ......\r\n");  
    /* Clear the  EXTI line 9 pending bit */  
    EXTI_ClearITPendingBit(EXTI_Line8);  
  }  
    if(EXTI_GetITStatus(EXTI_Line9) != RESET)  
  {  
    /* Toggle LED1 */  
     GPIO_SetBits(GPIOC,GPIO_Pin_2|GPIO_Pin_6);  
printf("S2 interrupt ......\r\n");  
    /* Clear the  EXTI line 0 pending bit */  
    EXTI_ClearITPendingBit(EXTI_Line9);  
  }  
}  
  
void EXTI15_10_IRQHandler(void)  
{  
  if(EXTI_GetITStatus(EXTI_Line10) != RESET)  
  {  
    /* Toggle LED2 */  
     GPIO_ResetBits(GPIOC,GPIO_Pin_1|GPIO_Pin_5);  
printf("S3 interrupt ......\r\n");  
    /* Clear the  EXTI line 10 pending bit */  
    EXTI_ClearITPendingBit(EXTI_Line10);  
  }  
    if(EXTI_GetITStatus(EXTI_Line11) != RESET)  
  {  
    /* Toggle LED1 */  
     GPIO_ResetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_4);  
printf("S4 interrupt ......\r\n");  
    /* Clear the  EXTI line 11 pending bit */  
    EXTI_ClearITPendingBit(EXTI_Line11);  
  }  
}  
  
  
#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
2014-11-27 23:31:37     打赏
12楼
/**
  ******************************************************************************
  * @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>
/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */

/** @addtogroup EXTI_Config
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
EXTI_InitTypeDef   EXTI_InitStructure;
GPIO_InitTypeDef   GPIO_InitStructure;
NVIC_InitTypeDef   NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;
long flag,temp,num;
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);
		RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
			RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM7, 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 NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;

  /* Enable the TIM2 global Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
	
	  NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	  NVIC_Init(&NVIC_InitStructure);
	
	  NVIC_InitStructure.NVIC_IRQChannel = TIM7_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	  NVIC_Init(&NVIC_InitStructure);
	
	/* Time base configuration */
  TIM_TimeBaseStructure.TIM_Period = 24000;
  TIM_TimeBaseStructure.TIM_Prescaler = 0;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

	
	/*NVIC_InitStructure.NVIC_IRQChannel =TIM8_CC_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	  NVIC_Init(&NVIC_InitStructure);*/
}

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */

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);
}


int main(void)
{
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     
       
  /* System Clocks Configuration */

  RCC_Configuration();

NVIC_Configuration();
USART_int(115200);
	printf(" config done...\r\n");

  
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
  TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE ); 
  
	
	 TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
  TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE ); 
	
	 TIM_TimeBaseInit(TIM7, &TIM_TimeBaseStructure);
  TIM_ITConfig(TIM7,TIM_IT_Update,ENABLE ); 
	
 
  
  /* TIM2 enable counter */
  TIM_Cmd(TIM2, ENABLE);
	 TIM_Cmd(TIM3, ENABLE);
	 	 TIM_Cmd(TIM7, ENABLE);

  while (1){
		if(flag == 2000)
		{printf("TIM2 interrupt......\r\n");
 GPIO_ResetBits(GPIOC,GPIO_Pin_1|GPIO_Pin_0);
		delay_ms(150);
		GPIO_ResetBits(GPIOC,GPIO_Pin_1|GPIO_Pin_0);
		  flag = 0;
  }

		if(temp == 3000)
			
		{printf("TIM3 interrupt......\r\n");
			GPIO_ResetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_7);
		delay_ms(150);
		GPIO_ResetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_7);
		 temp = 0;
  
		  
				
  }

}


}
void TIM2_IRQHandler(void) //TIM3 ??
{
if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //?? TIM3 ????????
{
TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //?? TIM3 ??????
	flag++;

}
}
void TIM3_IRQHandler(void) //TIM3 ??
{
if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) //?? TIM3 ????????
{
TIM_ClearITPendingBit(TIM3, TIM_IT_Update ); //?? TIM3 ??????
	temp++;

}
}






#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****/

 


菜鸟
2014-12-11 21:50:08     打赏
13楼
/** 
  ****************************************************************************** 
  * @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>  
#define VREF 3.3  
/** @addtogroup STM32F10x_StdPeriph_Examples 
  * @{ 
  */  
  
/** @addtogroup EXTI_Config 
  * @{ 
  */   
  
/* Private typedef -----------------------------------------------------------*/  
/* Private define ------------------------------------------------------------*/  
/* Private macro -------------------------------------------------------------*/  
/* Private variables ---------------------------------------------------------*/  
GPIO_InitTypeDef   GPIO_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
USART_ClockInitTypeDef USART_ClockInitStructure;  
  
void RCC_Configuration(void)  
{/* 
  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;  
  USART_InitStructure.USART_StopBits = USART_StopBits_1; 
  USART_InitStructure.USART_Parity = USART_Parity_No; 
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; 
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;       
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;        
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;        
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;  
    USART_ClockInit(USART1, &USART_ClockInitStructure);  
  USART_Init(USART1, &USART_InitStructure);  
  USART_Cmd(USART1, ENABLE);  
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);  
 USART_Cmd(USART1, ENABLE);  
}  
  
  
void 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,temp1,temp2,i;  
    printf("PWM-RGB TEST......\r\n");  
    while(1)  
    {     
        for(i=1;i<9;i++)  
{    
      TIM_SetCompare2(TIM2, temp0);  
        TIM_SetCompare3(TIM2, temp1);  
        TIM_SetCompare4(TIM2, temp2);  
     if(i==1)  
         { temp0=400,temp1=100,temp2=2047;  
             printf("PWM-RGB ...11...\r\n");  
             delay_ms(500);  
         }  
     if(i==2)  
         { temp0=2047,temp1=600,temp2=100;  
             printf("PWM-RGB ...22...\r\n");  
             delay_ms(500);  
         }  
     if(i==3)  
         { temp0=1200,temp1=600,temp2=2047;  
             printf("PWM-RGB ...33...\r\n");  
             delay_ms(500);  
         }  
     if(i==4)  
         { temp0=300,temp1=2047,temp2=500;  
             printf("PWM-RGB ...44...\r\n");  
             delay_ms(500);  
         }  
     if(i==5)  
         { temp0=1400,temp1=100,temp2=380;  
             printf("PWM-RGB ...55...\r\n");  
             delay_ms(500);  
         }  
     if(i==6)  
         { temp0=750,temp1=240,temp2=990;  
             printf("PWM-RGB ...66...\r\n");  
             delay_ms(500);  
         }  
     if(i==7)  
         { temp0=1680,temp1=1800,temp2=300;  
             printf("PWM-RGB ...77...\r\n");  
             delay_ms(500);  
         }  
       
}  
    }  
      
    /*while(1) 
        { 
        TIM_SetCompare2(TIM2, temp0); 
    if (temp0>=2047) 
    { 
        delay_ms(2000); 
        temp0=0; 
        break; 
  } 
    else {temp0++;delay_us(1000);} 
    } 
        while(1) 
        { 
        TIM_SetCompare3(TIM2, temp1); 
    if (temp1>=2047) 
    { 
        delay_ms(2000); 
        temp1=0; 
        break; 
  } 
    else {temp1++;delay_us(1000);} 
    } 
        while(1) 
        { 
        TIM_SetCompare4(TIM2, temp2); 
    if (temp2>=2047) 
    { 
        delay_ms(2000); 
        temp2=0; 
        break; 
  } 
    else {temp2++;delay_us(1000);} 
    }*/  
}  
  
  
/* Private functions ---------------------------------------------------------*/  
  
/** 
  * @brief  Main program. 
  * @param  None 
  * @retval None 
  */  
int main(void)  
{  
          
  /*!< At this stage the microcontroller clock setting is already configured,  
       this is done through SystemInit() function which is called from startup 
       file (startup_stm32f10x_xx.s) before to branch to application main. 
       To reconfigure the default setting of SystemInit() function, refer to 
       system_stm32f10x.c file 
     */       
         
  /* System Clocks Configuration */  
  RCC_Configuration();  
USART_int(115200);  
      
    printf(" config done...\r\n");  
    PWM_Config();  
    delay_ms(1000);  
    while(1)  
    {  
        PWM_TEST();  
    }  
}  
  
  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/** 
  * @} 
  */   
  
/** 
  * @} 
  */   
  
#ifdef __GNUC__  
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf 
     set to 'Yes') calls __io_putchar() */  
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)  
#else  
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)  
#endif /* __GNUC__ */  
    
  
  
/** 
  * @brief  Retargets the C library printf function to the USART. 
  * @param  None 
  * @retval None 
  */  
PUTCHAR_PROTOTYPE  
{  
  /* Place your implementation of fputc here */  
  /* e.g. write a character to the USART */  
  USART_SendData(EVAL_COM1, (uint8_t) ch);  
  
  /* Loop until the end of transmission */  
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)  
  {}  
  
  return ch;  
}  
  
#ifdef  USE_FULL_ASSERT  
  
/** 
  * @brief  Reports the name of the source file and the source line number 
  *         where the assert_param error has occurred. 
  * @param  file: pointer to the source file name 
  * @param  line: assert_param error line source number 
  * @retval None 
  */  
void assert_failed(uint8_t* file, uint32_t line)  
{   
  /* User can add his own implementation to report the file name and line number, 
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */  
  
  /* Infinite loop */  
  while (1)  
  {  
  }  
}  
  
#endif  
  
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/  

 


菜鸟
2014-12-11 21:53:54     打赏
14楼
 

#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 15:49:58     打赏
15楼

这作业赶得......

太感动了


菜鸟
2014-12-18 23:05:05     打赏
16楼
学中取乐,认真改代码,学海无涯八宝做粥。。

菜鸟
2014-12-18 23:07:38     打赏
17楼
掌上实验室被不小心摔了几次,焊了几次,一直用不了,到时候把视频一齐补上。

菜鸟
2014-12-23 23:13:35     打赏
18楼
/** 
  ****************************************************************************** 
  * @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 
 
****************************************************************************** 
  */   
#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

 


菜鸟
2014-12-25 11:56:55     打赏
19楼

菜鸟
2014-12-25 12:43:14     打赏
20楼

共27条 2/3 1 2 3 跳转至

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