gt9147

10 rtthread touch设备一直进中断求助！！

发布于 2021-08-03 10:11:30 浏览：921 订阅该版

2 个回答

StackYuan 认证专家 2021-08-03

这家伙很懒，什么也没写！

Yusisssss 2021-08-03

这家伙很懒，什么也没写！

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出出啊 2021-08-03

恃人不如自恃，人之为己者不如己之自为也

Yusisssss 2021-08-03

这家伙很懒，什么也没写！

出出啊 2021-08-03

恃人不如自恃，人之为己者不如己之自为也

Yusisssss 2021-08-03

这家伙很懒，什么也没写！

@出出啊 ```
static void gt9147_entry(void *parameter)
{
    rt_device_control(dev, RT_TOUCH_CTRL_GET_INFO, &info);

read_data = (struct rt_touch_data *)rt_malloc(sizeof(struct rt_touch_data) * info.point_num);

while (1)
    {
        rt_sem_take(gt9147_sem, RT_WAITING_FOREVER);

if (rt_device_read(dev, 0, read_data, info.point_num) == info.point_num)
        {
            for (rt_uint8_t i = 0; i < info.point_num; i++)
            {
                if (read_data[i].event == RT_TOUCH_EVENT_DOWN || read_data[i].event == RT_TOUCH_EVENT_MOVE)
                {
                    rt_kprintf("%d %d %d %d %d\n", read_data[i].track_id,
                               read_data[i].x_coordinate,
                               read_data[i].y_coordinate,
                               read_data[i].timestamp,
                               read_data[i].width);
                }
            }
        }
        rt_device_control(dev, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL);
    }
}

static rt_err_t rx_callback(rt_device_t dev, rt_size_t size)
{
    rt_device_control(dev, RT_TOUCH_CTRL_DISABLE_INT, RT_NULL);
	rt_sem_release(gt9147_sem);
    return 0;
}
```

有开关中断现象就是，rt_device_control(dev, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL)过后 马上又会产生INT中断，导致回调函数再次执行 再次读坐标，这样周而复始。

还有个问题，我看大家说坐标点1的寄存器是0x8150，但是程序里#define GT9147_POINT1_REG      (0x814F)这里也有点没明白