每个消息(即帧)以一个命令开头，以一个表示null字符的ASCII符号结束。
Each message, or frame, starts with a command and ends with the ASCII sign for a null character.
要获取有关帧的进一步信息，如它的地址和程序语言，可以使用命令'infoframe '。
To get further information about a frame such as its address and the program language you can use the command 'info frame'.
可以通过如上所示在'frame '命令中明确指定号码，或者使用'up '命令在堆栈中上移以及'down '命令在堆栈中下移来切换帧。
Frames can be switched through either by specifying their number explicitly to the 'frame' command as above or with the command 'up' to move up the stack and 'down' to move down.
实际上，发出'infolocals '命令时，gd b会打印出当前帧中的局部变量，缺省情况下，这个帧中的函数就是被中断的函数(0号帧)。
When you issue the 'info locals' command GDB actually prints out variables local to the current frame, which by default is where the interrupted function is (frame 0).
介绍上位机与欧姆龙V600系列RFID控制器串行通信连接方式、通信命令和通信数据帧格式。
The communication link way, communication commands and communication data structure between host computer and OMRON V600 Series RFID controller are introduced.
通过定义主从机读操作的两次握手命令-应答帧格式及其参数改写子VI实现数据采集。
Data acquisition was realized by defined two times of handshake order or response frame format and VI of read-write operation between host and slave computers.
注意如果每一帧都发送命令消息，会产生很多的网络流量。
Be careful of sending commands from the client every frame! This can cause a lot of network traffic.
其次，讲述了本系统使用的通信协议，包括数据帧的格式、命令格式，以及无线网络的建立和维护过程。
Secondly, it introduces the communication protocol of this system, including the frame structure, instruction structure and the process of wireless network setting up and maintenance.
通过设计CAN报文帧的格式及含义，实现了数据采集、解析、存储及接收命令控制下层的功能。
By designing the form and meaning of CAN message frame, the functions of data collection, analysis, storage and receiving commands to control the lower was achieved.
然后，讲述了本系统使用的通信协议，包括数据帧的格式、命令格式，以及无线网络的建立和维护过程。
Then, tells the communication protocol that this system USES, besides frame structure, instruction structure and the process of wireless network setting up and maintenance.
然后，讲述了本系统使用的通信协议，包括数据帧的格式、命令格式，以及无线网络的建立和维护过程。
Then, tells the communication protocol that this system USES, besides frame structure, instruction structure and the process of wireless network setting up and maintenance.
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