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关于TMS570LC4357的外部中断配置

2018-06-24 分类：Hercules™ ARM®安全微控制器 阅读(214)

您好，FAE，最近我在使用TMS570LC4357官方的Hercules官方Demo板时，需要用到外部中断触发这个功能，我配置的是PA6(H3)引脚为外部上升沿触发中断（低优先级），使用的是HalCoGen软件生成的代码。一下是我的配置源码：

void gioInit(void)
{
/* USER CODE BEGIN (2) */
/* USER CODE END */

    /** bring GIO module out of reset */
    gioREG->GCR0   = 1U;
    gioREG->ENACLR = 0xFFU;
    gioREG->LVLCLR = 0xFFU;

    /** @b initialize @b Port @b A */

    /** – Port A output values */
    gioPORTA->DOUT = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port A direction */
    gioPORTA->DIR  = (uint32)((uint32)1U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)1U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)1U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port A open drain enable */
    gioPORTA->PDR  = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port A pullup / pulldown selection */
    gioPORTA->PSL  = (uint32)((uint32)1U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)1U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)1U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)1U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port A pullup / pulldown enable*/
    gioPORTA->PULDIS  = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                      | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                      | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                      | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                      | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                      | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                      | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                      | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** @b initialize @b Port @b B */

    /** – Port B output values */
    gioPORTB->DOUT = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port B direction */
    gioPORTB->DIR  = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port B open drain enable */
    gioPORTB->PDR  = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port B pullup / pulldown selection */
    gioPORTB->PSL  = (uint32)((uint32)0U << 0U)  /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                   | (uint32)((uint32)0U << 7U); /* Bit 7 */

    /** – Port B pullup / pulldown enable*/
    gioPORTB->PULDIS  = (uint32)((uint32)0U << 0U) /* Bit 0 */
                      | (uint32)((uint32)0U << 1U)  /* Bit 1 */
                      | (uint32)((uint32)0U << 2U)  /* Bit 2 */
                      | (uint32)((uint32)0U << 3U)  /* Bit 3 */
                      | (uint32)((uint32)0U << 4U)  /* Bit 4 */
                      | (uint32)((uint32)0U << 5U)  /* Bit 5 */
                      | (uint32)((uint32)0U << 6U)  /* Bit 6 */
                      | (uint32)((uint32)0U << 7U); /* Bit 7 */

/* USER CODE BEGIN (3) */
/* USER CODE END */

    /** @b initialize @b interrupts */

    /** – interrupt polarity */
    gioREG->POL = (uint32)((uint32)0U << 0U)   /* Bit 0 */
                | (uint32)((uint32)0U << 1U)   /* Bit 1 */
                | (uint32)((uint32)0U << 2U)   /* Bit 2 */
                | (uint32)((uint32)0U << 3U)   /* Bit 3 */
                | (uint32)((uint32)0U << 4U)   /* Bit 4 */
                | (uint32)((uint32)0U << 5U)   /* Bit 5 */
                | (uint32)((uint32)1U << 6U)   /* Bit 6 */
                | (uint32)((uint32)1U << 7U)   /* Bit 7 */
                | (uint32)((uint32)0U << 8U)   /* Bit 8  */
                | (uint32)((uint32)0U << 9U)   /* Bit 9  */
                | (uint32)((uint32)0U << 10U)  /* Bit 10 */
                | (uint32)((uint32)0U << 11U)  /* Bit 11 */
                | (uint32)((uint32)0U << 12U)  /* Bit 12 */
                | (uint32)((uint32)0U << 13U)  /* Bit 13 */
                | (uint32)((uint32)0U << 14U)  /* Bit 14 */
                | (uint32)((uint32)0U << 15U); /* Bit 15 */

    /** – interrupt level */
    gioREG->LVLSET = (uint32)((uint32)0U << 0U)   /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)   /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)   /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)   /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)   /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)   /* Bit 5 */
                   | (uint32)((uint32)0U << 6U)   /* Bit 6 */
                   | (uint32)((uint32)1U << 7U)   /* Bit 7 */
                   | (uint32)((uint32)0U << 8U)   /* Bit 8  */
                   | (uint32)((uint32)0U << 9U)   /* Bit 9  */
                   | (uint32)((uint32)0U << 10U)  /* Bit 10 */
                   | (uint32)((uint32)0U << 11U)  /* Bit 11 */
                   | (uint32)((uint32)0U << 12U)  /* Bit 12 */
                   | (uint32)((uint32)0U << 13U)  /* Bit 13 */
                   | (uint32)((uint32)0U << 14U)  /* Bit 14 */
                   | (uint32)((uint32)0U << 15U); /* Bit 15 */

    /** – clear all pending interrupts */
    gioREG->FLG = 0xFFU;

    /** – enable interrupts */
    gioREG->ENASET = (uint32)((uint32)0U << 0U)   /* Bit 0 */
                   | (uint32)((uint32)0U << 1U)   /* Bit 1 */
                   | (uint32)((uint32)0U << 2U)   /* Bit 2 */
                   | (uint32)((uint32)0U << 3U)   /* Bit 3 */
                   | (uint32)((uint32)0U << 4U)   /* Bit 4 */
                   | (uint32)((uint32)0U << 5U)   /* Bit 5 */
                   | (uint32)((uint32)1U << 6U)   /* Bit 6 */
                   | (uint32)((uint32)1U << 7U)   /* Bit 7 */
                   | (uint32)((uint32)0U << 8U)   /* Bit 8  */
                   | (uint32)((uint32)0U << 9U)   /* Bit 9  */
                   | (uint32)((uint32)0U << 10U)  /* Bit 10 */
                   | (uint32)((uint32)0U << 11U)  /* Bit 11 */
                   | (uint32)((uint32)0U << 12U)  /* Bit 12 */
                   | (uint32)((uint32)0U << 13U)  /* Bit 13 */
                   | (uint32)((uint32)0U << 14U)  /* Bit 14 */
                   | (uint32)((uint32)0U << 15U); /* Bit 15 */

/* USER CODE BEGIN (4) */
/* USER CODE END */
}

#pragma CODE_STATE(gioLowLevelInterrupt, 32)
#pragma INTERRUPT(gioLowLevelInterrupt, IRQ)

/* SourceId : GIO_SourceId_012 */
/* DesignId : GIO_DesignId_011 */
/* Requirements : HL_CONQ_GIO_SR13 */
void gioLowLevelInterrupt(void)
{
    uint32 offset = gioREG->OFF2;

/* USER CODE BEGIN (17) */
/* USER CODE END */

    if (offset != 0U)
    {
        offset = offset – 1U;
        if (offset >= 8U)
        {
            gioNotification(gioPORTB, offset – 8U);
        }
        else
        {
            gioNotification(gioPORTA, offset);
        }
    }

/* USER CODE BEGIN (18) */
/* USER CODE END */

}

当然，HL_system_vim.c和HL_system_vim.h我也都配置好了，我用外部高电平尝试触发Demo板的PA6引脚启动外部中断，但是仿真的时候发现并没有进入外部中断，请问这个是怎么回事？应该如何解决呢？谢谢

gaoyang9992006：

楼主解决了没，看你这一堆代码的，除了你说的那个管脚，貌似你对并列的几个端口都设置进去了。你配置时候仔细看一下，那个结构图，是不是有什么使能没有启用，另外你的IO模式设置的应该也不对。

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