Output Input Pin

GPIO KONFIGURIEREN:

void BUSPins_Init( void )

{

   GPIO_InitTypeDef GPIO_InitStructureRX;

   GPIO_InitTypeDef GPIO_InitStructureTX;

   /* Enable the GPIO clock for the RX/TX Pins*/

   RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );

   RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC, ENABLE );

   /* Configure the GPIO Pins for Transmitting/Receiving */

   GPIO_InitStructureTX.GPIO_Pin = GPIO_Pin_13;

   GPIO_InitStructureRX.GPIO_Pin = GPIO_Pin_11;

   /* Set the operation mode */

   GPIO_InitStructureTX.GPIO_Mode = GPIO_Mode_Out_OD;

   GPIO_InitStructureRX.GPIO_Mode = GPIO_Mode_IN_FLOATING;

   GPIO_InitStructureTX.GPIO_Speed = GPIO_Speed_50MHz;

   GPIO_InitStructureRX.GPIO_Speed = GPIO_Speed_50MHz;

   GPIO_Init( GPIOB, &GPIO_InitStructureTX );

   GPIO_Init( GPIOC, &GPIO_InitStructureRX );

}

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EXTI KONFIGURIEREN:

GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource11);

    // Configure EXTI Line15 to generate an interrupt on falling edge

    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);

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NTVI KONFIGURIEREN (WAR SCHON DABEI):

NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQChannel;

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;

      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

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IRQHANDLER:

void EXTI15_10_IRQHandler(void)

{

    if(EXTI_GetITStatus(EXTI_Line11) != RESET)

   {

      GPIO_WriteBit(GPIOE, GPIO_Pin_0, (BitAction)((1-GPIO_ReadOutputDataBit(GPIOE, GPIO_Pin_0))));

      EXTI_ClearITPendingBit(EXTI_Line11);

   }

}

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TASK WELCHER 13 einmal auf 1 und einmal auf 0 setzt:

void prvSendTask ( void *params )

{

   for(;;) {       

        GPIO_SetBits( GPIOB, GPIO_Pin_13 );

        vTaskDelay(1000);  

        GPIO_ResetBits( GPIOB, GPIO_Pin_13 );

        vTaskDelay(1000);

   }

}