PIN_GPIO通用驱动 touch_屏幕触摸系统中断

touch驱动使能引脚中断无法触发

发布于 2025-04-21 11:13:20 浏览：94 订阅该版

```C
static void touch(void *param)
{

struct rt_touch_data data[GT911_MAX_TOUCH];
    rt_size_t point_num;

static rt_uint32_t touch_count = 0;

/* 查找触摸设备 */
    touch_dev = rt_device_find("gt911");
    rt_kprintf("flag1\n");
    if (touch_dev == RT_NULL)
    {
        rt_kprintf("[GT911] Error: Touch device not found!\n");
        return -1;
    }
    rt_kprintf("flag2\n");
    /* 打开触摸设备 */
    if (rt_touch_open(touch_dev, RT_DEVICE_FLAG_INT_RX) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Open device failed!\n");
        return -1;
    }
    rt_kprintf("flag3\n");
    rt_uint16_t x = 240;
    if (rt_touch_control(touch_dev, RT_TOUCH_CTRL_SET_X_RANGE, &x) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Set x failed!\n");
        return -1;
    }
    rt_uint16_t y = 320;
    if (rt_touch_control(touch_dev, RT_TOUCH_CTRL_SET_Y_RANGE, &y) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Set y failed!\n");
        return -1;
    }
    rt_kprintf("flag4\n");

// 信号量
    touch_sem = rt_sem_create("tsem", 0, RT_IPC_FLAG_PRIO);
    if (touch_sem == RT_NULL)
    {
        LOG_E("create dynamic semaphore failed.\n");
    }

if (rt_device_set_rx_indicate(touch_dev, touch_handler) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Set int handler failed!\n");
    }
    if (rt_touch_control(touch_dev, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Enable int failed!\n");
    }

/* 获取触摸屏信息 */
    struct rt_touch_info info;
    if (rt_touch_control(touch_dev, RT_TOUCH_CTRL_GET_INFO, &info) != RT_EOK)
    {
        rt_kprintf("[GT911] Error: Get touch info failed!\n");
        return -1;
    }

rt_kprintf("\n[GT911] Touch screen test start\n");
    rt_kprintf("type       :%d\n", info.type);      /* 类型：电容型/电阻型*/
    rt_kprintf("vendor     :%s\n", info.vendor);    /* 厂商 */
    rt_kprintf("point_num  :%d\n", info.point_num); /* 支持的触点个数 */
    rt_kprintf("range_x    :%d\n", info.range_x);   /* X 轴分辨率 */
    rt_kprintf("range_y    :%d\n", info.range_y);   /* Y 轴分辨率*/
    rt_kprintf("[GT911] Press any point to test, press ESC to exit\n\n");

gt911_thread = rt_thread_create("gt911", touch_callback, RT_NULL, 1024, 15, 10);
    if (gt911_thread != RT_NULL)
    {
        rt_thread_startup(gt911_thread);
    }
    //rt_touch_t touch_dev_1 = rt
    rt_touch_irq_init((rt_touch_t)touch_dev);
    rt_touch_irq_enable((rt_touch_t)touch_dev);

return 0;
}
```

以上为我创建的测试触摸的线程入口函数，使用open和control都使能了引脚中断，甚至在结尾又使用rt_touch_irq_init再次初始化了引脚中断，但是这个中断仍无法触发，给中断引脚手动输入高低电平也无法触发。
跪求大佬指点迷津