在commande hyperterminal或VB.NET [英] At commande hyperterminal or VB.NET

问题描述

当我将调制解调器连接到我的电脑时，使用超级终端我写了AT命令，调制解调器没有反应。



我尝试过：



你好。我有一个调制解调器4端口（3gsm和1 cdma）wavecom q2438f。我想在vb.net中编写一个程序，向调制解调器发送ussd请求。这是我的问题：

当我将调制解调器连接到我的电脑时，使用超级终端我写了AT命令，调制解调器没有反应。请帮助我

When I connect the modem to my pc, with hyperterminal I write the AT command and the modem does not react.

What I have tried:

Hello. I have a modem 4 port (3gsm and 1 cdma) wavecom q2438f. I want to write a program in vb.net that sends ussd requests to the modem. Here is my problem:
When I connect the modem to my pc, with hyperterminal I write the AT command and the modem does not react. Please help me

推荐答案

检查连接 - 如果你不能让调制解调器以超级终端响应，你将无法使用自己的代码。



因此请按顺序检查：COM端口是否正确，波特率是否正确，BpC，停止位，奇偶校验。 （您可以从制造商那里获得此信息）。检查调制解调器是否插入正确的插座，使用正确的电缆，并且已打开电源。



标准调制解调器应该正常工作时使用超级终端你已经正确连接了它。

如果你仍然无法实现，请通过他们的网站与制造商联系 - 它可能有缺陷。

Check the connection - if you can't get the modem to respond with hyperterminal, you won't get it working with your own code.

So check things in order: the COM port is correct, the Baud rate is correct, the BpC, the stop bits, the parity. (You can get this info from the manufacturer). Check the modem is plugged into the correct socket, using the correct cable, and that it's powered on.

A "standard" modem should "just work" with hyperterminal when you have connected it correctly.
If you still can't get it going, talk to the manufacturers via their website - it may be defective.

引用：

当我将调制解调器连接到我的电脑时，使用超级终端我写了AT命令而调制解调器没有反应。

When I connect the modem to my pc, with hyperterminal I write the AT command and the modem does not react.

超级终端和任何AT调制解调器只有在设置更正时才能进行通信。一个不正确的设置足以阻止通信工作。

您需要搜索正确的设置，直到您看到调制解调器在超级终端上接听AT命令。

一旦你设置正确，你可以去VB程序。

调制解调器文档应该有信息，但我们不能搜索你。

HyperTerminal and any AT modem can communicate only if settings are corrects. One incorrect setting can be enough to prevent communication from working.
You need to search the correct setting until you see the modem answering to the AT command on HyperTerminal.
Once you got the settings correct, you can go the VB program.
The modem documentation should have informations, but we can't search fir you.

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