can发数据，怎么就发个没完呢，我就想发个数据而已

发布于 2019-04-11 09:31:04 浏览：1777 订阅该版

* 本帖最后由 aozima 于 2019-4-11 11:02 编辑 *

```#define RT_CAN_THREAD_PRIORITY 15
void rt_can_thread_entry(void *parameter)
{
        struct rt_can_msg msg;
        struct can_app_struct *canpara = (struct can_app_struct *) parameter;
        rt_device_t candev;
        rt_uint32_t e;

candev = rt_device_find(canpara->name);
        RT_ASSERT(candev);
        rt_event_init(&canpara->event, canpara->name, RT_IPC_FLAG_FIFO);
        rt_device_open(candev, (RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_INT_TX));
        rt_device_control(candev, RT_CAN_CMD_SET_FILTER, canpara->filter);
        
        msg.ide=RT_CAN_STDID;
        msg.rtr=CAN_RTR_DATA;
        msg.len=8;
        msg.id=0x5a;
        msg.data[0]=0;
        msg.data[1]=1;
        msg.data[2]=3;
        msg.data[3]=4;
        msg.data[4]=5;
        msg.data[5]=6;
        msg.data[6]=7;
        msg.data[7]=2;
    while (1)
    {
        rt_thread_mdelay(100);  
        rt_device_write(candev, 0, &msg, sizeof(msg));

}
}
int rt_can_app_init(void)
{
    rt_thread_t tid;

tid = rt_thread_create("canapp1",
                           rt_can_thread_entry, &can_data[0],
                           512, RT_CAN_THREAD_PRIORITY, 20);
    if (tid != RT_NULL) rt_thread_startup(tid);

return 0;
}```

**我就想100ms为周期的发送一个标准数据帧的数据。可是令人崩溃的是，这个任务就进来一次就不进来了，发送的can数据帧是以几十us为周期的，一直发个不停。有大神能帮帮忙解决下吗。**