烧录报错

Error in final launch sequence:

Failed to execute MI command:

target remote localhost:61234

Error message from debugger back end:

localhost:61234: Connection timed out.

Failed to execute MI command:

target remote localhost:61234

Error message from debugger back end:

localhost:61234: Connection timed out.

localhost:61234: Connection timed out.

烧了一个不断从串口发送消息的程序，没有设置延时一直往外发数据，自那之后就一直报这个错，再也没法下载程序进去了，不知道咋清理内部程序了，CubeIDE连找不到了