基于事件驱动的串口通讯控件

消息帧数据格式:

1 0 A B X X

其中 10 为消息标识,

AB表示文本长度,L=A*100+B

XX为配位字符,任意



控制帧数据格式

0 1 A B M N

其中 01为控制标识,

AB为请求标识

MN为附加标识

11表示请求对方接收文件,M表示描述字串中文件名子串的长度

N表示描述字串中文件大小子串的长度

10通知对方放弃传输

00通知文件传输完毕

01请求对方发送数据, MN为10请求发送下一个

MN为00请求重发



数据帧数据格式

0 0 A B M N

其中 00 为数据标识,

AB表示数据长度,L=A*100+B

MN为校验,M*100+N=A+B

-based on event-driven serial communication control information data fr a me format : 1 0 A B X X 10 news for identification, said AB text length, L = A* 100 B XX Coordination of characters arbitrary control data fr a me format 0 1 A B M N which control 01 of identification, AB logo MN request for additional identification to request the other 11 said receiving the document, M said documents describing string name, string length N said Descr iption Size string substring length of 10 to notify each other up 00 disposable transmission notice file transfer completed 01 requests each other this data, MN request to send 10 MN under a request for renewal of 00 data fr a me data format 0 0 A B M N which number 00 According to the labels, AB indicates that the data length, L = A* B 100 MN for verificati