串口数据的问题(可多给高分,急啊)
我的串口MODE上电后就会向串口发送很多的字符:
System started!
Press 's' key continuously to enter configure program.
GPRS-1000T Configure Program:
Use the extended AT commands configure the
arguments needed
现在我想在出现“Press 's' key continuously to enter configure program.” 这一句后就向设备发送“S”,我应该怎么办啊?