main.c

来自「用于监视I2C通信总线」· C语言 代码 · 共 186 行

/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Version            : V2.2.0
* Date               : 06/13/2008
* Description        : Virtual Com Port Demo main file
********************************************************************************
* 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.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
#include "usb_lib.h"
#include "usb_desc.h"
#include "hw_config.h"
#include "usb_pwr.h"
#include "simulateI2C.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Extern variables ----------------------------------------------------------*/
extern u32 count_out;
extern u8 buffer_out[VIRTUAL_COM_PORT_DATA_SIZE];
void TIM_Configuration(void);
void EXTI_Configuration(void);

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

void TIM_Configuration(void)
{
  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
  
#define TIM_COUNT 18000  
  
  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);

  
  
  /* TIM3 configuration */
  TIM_TimeBaseStructure.TIM_Period =TIM_COUNT;          
  TIM_TimeBaseStructure.TIM_Prescaler = 39;       
  TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;    
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);


  TIM_Cmd(TIM3, ENABLE);

  TIM_ClearFlag(TIM3, TIM_FLAG_Update);

  TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
  
  
  
  
  
  

}

/*******************************************************************************
* Function Name  : EXTI_Configuration
* Description    : Configures EXTI Line0.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void EXTI_Configuration(void)
{
  EXTI_InitTypeDef EXTI_InitStructure;
  GPIO_InitTypeDef GPIO_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;
  
  /* Configure PA.0 as input floating (EXTI Line0) , Configure PA.1 as input floating (EXTI Line1)*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Connect EXTI Line0 to PA.0 */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0);
  
  /* Connect EXTI Line0 to PA.1 */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource1);

  /* Configure EXTI Line0 to generate an event or an interrupt on Rising edge */
  EXTI_ClearITPendingBit(EXTI_Line0);
  EXTI_InitStructure.EXTI_Line = EXTI_Line0;

  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
  
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure); 
  
  /* Configure EXTI Line1 to generate an event or an interrupt on Rising edge */
  EXTI_ClearITPendingBit(EXTI_Line1);
  EXTI_InitStructure.EXTI_Line = EXTI_Line1;

  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
  
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure); 
  
       /* Configure and enable EXTI0 interrupt -------------------------------------*/
  NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQChannel;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
  
  /* Configure and enable EXTI1 interrupt -------------------------------------*/
  NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQChannel;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

/*******************************************************************************
* Function Name  : main.
* Description    : Main routine.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
int main(void)
{

#ifdef DEBUG
  debug();
#endif

  Set_System();
  Set_USBClock();
  USB_Interrupts_Config();
  USB_Init();
  TIM_Configuration();
  EXTI_Configuration();
  SI2C_init();

  while (1)
  {
    
    if ((count_out != 0) && (bDeviceState == CONFIGURED))
    {
      USB_To_USART_Send_Data(&buffer_out[0], count_out);
      count_out = 0;
    }
    
    data_convert();
    I2C_To_USB_Send_Data();
  }
}

#ifdef  DEBUG
/*******************************************************************************
* Function Name  : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert_param error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert_param error line source number
* Output         : None
* Return         : None
*******************************************************************************/
void assert_failed(u8* file, u32 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 2008 STMicroelectronics *****END OF FILE****/