C6748 GPIO中断

我只设置GPIO6[1]为上升沿中断，但在下降沿时也会产生中断，而且一次中断会进入两次中断服务函数，求解答？ 谢谢！

// The gpioPin number starts from 1; // bankNum = 0~8; pinNum = 0~15;

#define GPIO_PIN(bankNum, pinNum) (bankNum * 16 + pinNum + 1)

中断服务函数：

void gpioInputIsr(Ptr ignore)
{
    Gpio_PinCmdArg pinCmdArg;
    UInt32 tempVal = 0x00;
    Gpio_IntrStatus intrStatus;

    /* To avoid compiler warnings */
    ignore = ignore;

    intrStatus.bank = BANK6;
    tempVal = Gpio_readBankInterruptStatus(gpio0, &intrStatus);
    //printf ("\nBefore Clearing, IntrStatus – %d", intrStatus.value);

    /* Clear the interrupt status */
    pinCmdArg.pin = GPIO_PIN(BANK6, PIN1);
    Gpio_clearInterruptStatus(gpio0, &pinCmdArg);

    //tempVal = Gpio_readBankInterruptStatus(gpio0, &intrStatus);
    //printf ("\nAfter Clearing, IntrStatus – %d", intrStatus.value);
}

中断初始化：

void gpioInterruptInit(void)
{
    Gpio_IntrCmdArg intrCmdArg;
     /* Enable GPIO Bank interrupt for bank GPIO_BANK_6 */
    Gpio_bankInterruptEnable(gpio0, BANK6);

    /* Configure GPIO(GPIO6_1_PIN) to generate interrupt on rising edge */
    Gpio_setRisingEdgeTrigger(gpio0, GPIO_PIN(BANK6, PIN1));

    /* Set the interrupt handler for GPIO6_1_PIN. However we cannot register *

    * interrupts for individual pins in C6748, therefore register interrupt *
    * for the associated bank(BANK6) as a whole */
    intrCmdArg.value = BANK6;
    intrCmdArg.bankOrPin = Gpio_BankOrPin_isBank;
    intrCmdArg.isrHandler = (Gpio_Isr)gpioInputIsr;
    Gpio_regIntHandler(gpio0, &intrCmdArg);
}

Tony Tang：

请问你是如何触发的？GPIO上是否有抖动，这是我常见的这类情况。