对 AT 命令的响应结束 [英] End of response to an AT command

问题描述

如何确定发送到 GSM 模块的 AT 命令的结尾是什么?

How to be sure what is end of an AT command send to GSM module?

我需要一些字符或字符串来代表每种情况下 AT 命令的结束，因为我发现何时收到整个响应.

I need some character or string that represent end of AT command for every case due to finding when whole response is received.

我猜它有一些带有 "序列的东西，但是，这个序列可能在 AT 命令响应的开头?

I guess it have something with " " sequence but, this sequence could be at the beginning of AT command response?

推荐答案

就像你想象的那样 .
这定义了一行的结尾.

Like you suppose it's .
This defines the end of a line.

而且只有处理完整的行才有意义.

And it makes only sense to process complete lines.

有些命令只响应 OK ，有些命令响应一些数据.
所以你应该首先构建一个解析器，它可以检测完整的行，这样它们就可以使用处理响应的函数进行处理.

Some commands respons with only OK , some with some data.
So you should build at first a parser, who can detect complete lines, so they can be processed with a function that handles responses.

有时您甚至可以得到您不要求的响应，例如更改事件 net login 或 sim 状态 #QSS: 2 .

Sometimes you can get even responses you don't request, like change events net login or the sim status #QSS: 2 .

所以你需要知道你期望什么答案，然后等到你得到这个

So you need to know what answer you expect and wait until you get this

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