LPC54608 gipo中断

paulkiyt

请问，LPC54608的GPIO引脚哪些具有中断功能？
看手册，PORT0 和PORT1共8个可以中断，请问是哪8个pin？如果是8个的话，是不是太少了点

最佳答案

下面的64个GPIO口都可以实现外部中断，在fsl_inputmux_connections.h中： /*!< Pin Interrupt. */     kINPUTMUX_GpioPort0Pin0ToPintsel = 0U + (PINTSEL_PMUX_ID << PMUX_SHIFT),   &nbs ...

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• 发表于2017-10-22
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anobodykey

手册中有说的端口0和端口1的所有io口都可以用作中断口

paulkiyt

anobodykey 发表于 2017-9-12 17:58
手册中有说的端口0和端口1的所有io口都可以用作中断口

在手册UM10912  12.2描述只有8个
在datasheet里又描述，所有的IO

okwh

应该是所有IO中，任意选8个

龙丘

正好刚写完此部分代码，分享给你参考下，完成下面的代码就可以了：
void pint_int0_isr(pint_pin_int_t pintr, uint32_t pmatch_status)
{
    LED_Ctrl(LED1, RVS);
}
void pint_int1_isr(pint_pin_int_t pintr, uint32_t pmatch_status)
{
    LED_Ctrl(LED2, RVS);
}


在main()函数里面添加下面的初始化：
/* Connect trigger sources to PINT */
    INPUTMUX_Init(INPUTMUX);
    INPUTMUX_AttachSignal(INPUTMUX, kPINT_PinInt0, kINPUTMUX_GpioPort1Pin5ToPintsel);
    INPUTMUX_AttachSignal(INPUTMUX, kPINT_PinInt1, kINPUTMUX_GpioPort1Pin18ToPintsel);

    /* Turnoff clock to inputmux to save power. Clock is only needed to make changes */
    INPUTMUX_Deinit(INPUTMUX);

    /* Initialize PINT */
    PINT_Init(PINT);

    /* Setup Pin Interrupt 0 for rising edge */
    PINT_PinInterruptConfig(PINT, kPINT_PinInt0, kPINT_PinIntEnableRiseEdge, pint_int0_isr);

    /* Setup Pin Interrupt 1 for falling edge */
    PINT_PinInterruptConfig(PINT, kPINT_PinInt1, kPINT_PinIntEnableFallEdge, pint_int1_isr);

    /* Enable callbacks for PINT */
    PINT_EnableCallback(PINT);

龙丘

下面的64个GPIO口都可以实现外部中断，在fsl_inputmux_connections.h中：
/*!< Pin Interrupt. */
    kINPUTMUX_GpioPort0Pin0ToPintsel = 0U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin1ToPintsel = 1U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin2ToPintsel = 2U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin3ToPintsel = 3U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin4ToPintsel = 4U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin5ToPintsel = 5U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin6ToPintsel = 6U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin7ToPintsel = 7U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin8ToPintsel = 8U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin9ToPintsel = 9U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin10ToPintsel = 10U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin11ToPintsel = 11U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin12ToPintsel = 12U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin13ToPintsel = 13U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin14ToPintsel = 14U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin15ToPintsel = 15U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin16ToPintsel = 16U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin17ToPintsel = 17U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin18ToPintsel = 18U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin19ToPintsel = 19U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin20ToPintsel = 20U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin21ToPintsel = 21U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin22ToPintsel = 22U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin23ToPintsel = 23U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin24ToPintsel = 24U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin25ToPintsel = 25U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin26ToPintsel = 26U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin27ToPintsel = 27U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin28ToPintsel = 28U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin29ToPintsel = 29U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin30ToPintsel = 30U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort0Pin31ToPintsel = 31U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin0ToPintsel = 32U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin1ToPintsel = 33U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin2ToPintsel = 34U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin3ToPintsel = 35U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin4ToPintsel = 36U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin5ToPintsel = 37U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin6ToPintsel = 38U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin7ToPintsel = 39U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin8ToPintsel = 40U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin9ToPintsel = 41U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin10ToPintsel = 42U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin11ToPintsel = 43U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin12ToPintsel = 44U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin13ToPintsel = 45U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin14ToPintsel = 46U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin15ToPintsel = 47U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin16ToPintsel = 48U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin17ToPintsel = 49U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin18ToPintsel = 50U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin19ToPintsel = 51U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin20ToPintsel = 52U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin21ToPintsel = 53U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin22ToPintsel = 54U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin23ToPintsel = 55U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin24ToPintsel = 56U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin25ToPintsel = 57U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin26ToPintsel = 58U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin27ToPintsel = 59U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin28ToPintsel = 60U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin29ToPintsel = 61U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin30ToPintsel = 62U + (PINTSEL_PMUX_ID << PMUX_SHIFT),
    kINPUTMUX_GpioPort1Pin31ToPintsel = 63U + (PINTSEL_PMUX_ID << PMUX_SHIFT),

龙丘

中断触发用的是P1_5,P1_18，用户可以自由设置：

INPUTMUX_AttachSignal(INPUTMUX, kPINT_PinInt0, kINPUTMUX_GpioPort1Pin5ToPintsel);
INPUTMUX_AttachSignal(INPUTMUX, kPINT_PinInt1, kINPUTMUX_GpioPort1Pin18ToPintsel);

thinkking1985

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