main.c

st公司的开发板的资料

*                  can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void IntExtOnOffConfig(FunctionalState NewState)
{
  EXTI_InitTypeDef EXTI_InitStructure;

  /* Initializes the EXTI_InitStructure */
  EXTI_StructInit(&EXTI_InitStructure);

  /* Disable the EXTI line 8, 12 and 14 on falling edge */
  if(NewState == DISABLE)
  {
    EXTI_InitStructure.EXTI_Line = EXTI_Line8 | EXTI_Line12 | EXTI_Line14;
    EXTI_InitStructure.EXTI_LineCmd = DISABLE;
    EXTI_Init(&EXTI_InitStructure);
  }
  /* Enable the EXTI line 8, 12 and 14 on falling edge */
  else
  {
    /* Clear the the EXTI line 8, 12 and 14 interrupt pending bit */
    EXTI_ClearITPendingBit(EXTI_Line8 | EXTI_Line12 | EXTI_Line14);

    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
    EXTI_InitStructure.EXTI_Line = EXTI_Line8 | EXTI_Line12 | EXTI_Line14;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);
  }
}

/*******************************************************************************
* Function Name  : GPIO_Config
* Description    : Configures the different GPIO ports pins.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Config(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure PD.08, PD.12 and PD.14 as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_12 | GPIO_Pin_14;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* Configure PE.00 and PE.01 as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  /* Configure PB.09 as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  /* PD.09 used as USB pull-up */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* RIGHT Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource0);

  /* LEFT Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource1);

  /* DOWN Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource14);

  /* UP Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource8);

  /* SEL Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource12);

  /* KEY Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
}

/*******************************************************************************
* Function Name  : Delay
* Description    : Inserts a delay time.
* Input          : nCount: specifies the delay time length (time base 10 ms).
* Output         : None
* Return         : None
*******************************************************************************/
void Delay(u32 nCount)
{
  TimingDelay = nCount;

  /* Enable the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Enable);
  
  while(TimingDelay != 0)
  {
  }

  /* Disable the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Disable);

  /* Clear the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Clear);
}

/*******************************************************************************
* Function Name  : DelayJoyStick
* Description    : Inserts a delay time while no joystick RIGHT, LEFT and SEL 
                   pushbuttons are pressed.
* Input          : nCount: specifies the delay time length (time base 10 ms).
* Output         : None
* Return         : Pressed Key.  This value can be: NOKEY, RIGHT, LEFT or SEL.
*******************************************************************************/
u32 DelayJoyStick(u32 nTime)
{
  vu32 keystate = 0;

  TimingDelay = nTime;
 
  while((TimingDelay != 0) && (keystate != RIGHT) && (keystate != LEFT) && (keystate != SEL))
  {
    keystate = ReadKey();
  } 
  
  return keystate;
}

/*******************************************************************************
* Function Name  : Decrement_TimingDelay
* Description    : Decrements the TimingDelay variable.
* Input          : None
* Output         : TimingDelay
* Return         : None
*******************************************************************************/
void Decrement_TimingDelay(void)
{
  if (TimingDelay != 0x00)
  {
    TimingDelay--;
  }
}

/*******************************************************************************
* Function Name  : LedShow_Init
* Description    : Configure the leds pins as output pushpull: LED1, LED2, LED3
*                  and LED4
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LedShow_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  TIM1_TimeBaseInitTypeDef  TIM1_TimeBaseStructure;
  TIM1_OCInitTypeDef  TIM1_OCInitStructure;

  TIM1_TimeBaseStructInit(&TIM1_TimeBaseStructure);
  TIM1_OCStructInit(&TIM1_OCInitStructure);

  /* PC.06, PC.07, PC.08 and PC.09 as output push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* Time Base configuration */
  TIM1_TimeBaseStructure.TIM1_Prescaler = 719;
  TIM1_TimeBaseStructure.TIM1_CounterMode = TIM1_CounterMode_Up;
  TIM1_TimeBaseStructure.TIM1_Period = 0x270F;
  TIM1_TimeBaseStructure.TIM1_ClockDivision = 0x0;
  TIM1_TimeBaseStructure.TIM1_RepetitionCounter = 0x0;

  TIM1_TimeBaseInit(&TIM1_TimeBaseStructure);

  /* Channel 1, 2, 3 and 4 Configuration in Timing mode */
  TIM1_OCInitStructure.TIM1_OCMode = TIM1_OCMode_Timing;
  TIM1_OCInitStructure.TIM1_OutputState = TIM1_OutputState_Enable;
  TIM1_OCInitStructure.TIM1_OutputNState = TIM1_OutputNState_Disable;
  TIM1_OCInitStructure.TIM1_Pulse = 0x0;
  
  TIM1_OC1Init(&TIM1_OCInitStructure); 
}

/*******************************************************************************
* Function Name  : LedShow
* Description    : Enables or disables LED1, LED2, LED3 and LED4 toggling.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LedShow(FunctionalState NewState)
{
  /* Enable LEDs toggling */
  if(NewState == ENABLE)
  {
    LedShowStatus = 1;
    /* Enable the TIM1 Update Interrupt */
    TIM1_ITConfig(TIM1_IT_Update, ENABLE);
    /* TIM1 counter enable */
    TIM1_Cmd(ENABLE);
  }
  /* Disable LEDs toggling */
  else
  {
    LedShowStatus = 0;
    /* Disable the TIM1 Update Interrupt */
    TIM1_ITConfig(TIM1_IT_Update, DISABLE);
    /* TIM1 counter disable */
    TIM1_Cmd(DISABLE);
  }
}

/*******************************************************************************
* Function Name  : Get_LedShowStatus
* Description    : Get the LedShowStatus value.
* Input          : None
* Output         : None
* Return         : LedShowStatus Value.
*******************************************************************************/
u32 Get_LedShowStatus(void)
{
  return LedShowStatus;
}

/*******************************************************************************
* Function Name  : CheckBitmapFilesStatus
* Description    : Checks the bitmap files availability and display a warning 
*                  message if these files doesn't exit.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void CheckBitmapFilesStatus(void)
{
  /* Checks if the Bitmap files are loaded */
  if(CheckBitmapFiles() != 0)
  {
    /* Set the LCD Back Color */
    LCD_SetBackColor(Blue);

    /* Set the LCD Text Color */
    LCD_SetTextColor(White);    
    LCD_DisplayStringLine(Line0, "      Warning       ");
    LCD_DisplayStringLine(Line1, "No loaded Bitmap    ");
    LCD_DisplayStringLine(Line2, "files. Demo can't be");
    LCD_DisplayStringLine(Line3, "executed.           ");
    LCD_DisplayStringLine(Line4, "Please be sure that ");
    LCD_DisplayStringLine(Line5, "all files are       ");
    LCD_DisplayStringLine(Line6, "correctly programmed");
    LCD_DisplayStringLine(Line7, "in the SPI FLASH and");
    LCD_DisplayStringLine(Line8, "restart the Demo.   ");
    LCD_DisplayStringLine(Line9, "                    ");
    
    /* Deinitializes the NVIC */
    NVIC_DeInit();
    
    /* Deinitializes the RCC */
    RCC_DeInit();
    
    /* Demo Can't Start */
    while(1)
    {
    }
  }
}

/*******************************************************************************
* Function Name  : Get_HSEStartUpStatus
* Description    : Returns the HSE StartUp Status.
* Input          : None
* Output         : None
* Return         : HSE StartUp Status.
*******************************************************************************/
ErrorStatus Get_HSEStartUpStatus(void)
{
  return (HSEStartUpStatus);
}

#ifdef  DEBUG
/*******************************************************************************
* Function Name  : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert 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) */

  LCD_Clear(White);
  LCD_DisplayStringLine(Line0, "   Assert Function  ");

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

/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/