405 rtt: 部分配置调整

Signed-off-by: a1012112796 <1012112796@qq.com>

libraries/HAL_Drivers/drv_common.c

@@ -214,3 +214,48 @@ void rt_hw_board_init(void)
 #endif
 }
 
+static struct rt_device blocked_reader_ = {0};
+
+static rt_size_t _blocked_reader_read (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
+{
+    return 0;
+}
+
+int init_block_reader()
+{
+    blocked_reader_.read = _blocked_reader_read;
+    rt_device_register(&blocked_reader_, "block_r", RT_DEVICE_FLAG_RDWR);
+
+    return 0;
+}
+INIT_BOARD_EXPORT(init_block_reader);
+
+void rt_hw_shell_relink(const char *name, rt_uint32_t baud)
+{
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+    config.baud_rate = baud;
+    rt_device_t dev = rt_device_find(name);
+    RT_ASSERT(dev);
+    rt_device_control(dev, RT_DEVICE_CTRL_CONFIG, &config);
+
+    rt_console_set_device(name);
+
+    rt_thread_t tid = rt_thread_find(FINSH_THREAD_NAME);
+    if (tid)
+    {
+        rt_thread_resume(tid);
+        rt_schedule();
+    }
+}
+
+static void shell_relink(int argc, char **argv)
+{
+    if (argc < 2)
+    {
+        rt_kprintf("%s prt_name\n", argv[0]);
+        return;
+    }
+
+    rt_hw_shell_relink(argv[1], BAUD_RATE_460800);
+}
+MSH_CMD_EXPORT(shell_relink, relink msh to other port);