Function can_rx_thread

bsp/hc32/tests/test_can.c:122–153

}

static void can_rx_thread(void *parameter)
{
    struct rt_can_msg rxmsg = {0};
    rt_size_t  size;
    uint8_t data_len;

    while (1)
    {
        rt_memset(&rxmsg, 0, sizeof(struct rt_can_msg));
        rt_sem_take(&can_rx_sem, RT_WAITING_FOREVER);
        rt_mutex_take(can_mutex, RT_WAITING_FOREVER);
        /* hdr 值为 - 1，表示直接从 uselist 链表读取数据 */
        rxmsg.hdr_index = -1;
        /* 从 CAN 读取一帧数据 */
        rt_device_read(can_dev, 0, &rxmsg, sizeof(rxmsg));
        /* 打印数据 ID 及内容 */
        rt_kprintf("ID:%x Data:", rxmsg.id);
        data_len = _get_can_data_bytes_len(rxmsg.len);
        for (int i = 0; i < data_len; i++)
        {
            rt_kprintf("%2x ", rxmsg.data[i]);
        }
        rt_kprintf("\n");
        /* 发送接收到的消息 */
        size = rt_device_write(can_dev, 0, &rxmsg, sizeof(rxmsg));
        rt_mutex_release(can_mutex);
        if (size == 0)
        {
            rt_kprintf("can dev write data failed!\n");
        }
    }
}

static void _msh_cmd_set_baud(int argc, char **argv)
{