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I've got a Windows 8 Professional device which has got a Mobile Broadband adapter embedded and I need to be able to send AT commands to the modem, usually I'd connect to the COM port and send the commands. However the device doesn't appear to have any COM ports, instead it presents its self as a network adapter.

I'm wanting to send AT commands to change the APN of the modem and to reset the device, I've looked into the 'netsh mbn add profile' but this command always returns an error advising that the XML profile is incorrect.

Also from looking at the functions of the netsh mbn it doesn't seem to provide as much control as sending AT commands.

The modem that I'm trying to interface to is the Ericsson C5621 GW on a Lenovo ThinkPad Tablet 2.

Is there another way to send AT commands?

Thanks

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1 回答 1

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我不是特别了解这个产品，但是由于我在爱立信工作，后来在ST-Ericsson从事手机开发十多年，它注定会有我的一些代码，所以我会在一般基础上回答。

简短的版本是，除非设备通过其中一个外部接口（可能的接口类型为 RS-232、IrDA、蓝牙、USB 或 CAIF）公开串行接口，否则无法向其发送 AT 命令1。

作为笔记本电脑中的嵌入式设备，因为您说它似乎没有串行接口，所以我假设它使用CAIF（通常用于嵌入式设置。它也可能在禁用串行接口的情况下使用 USB，但由于本新闻稿提到它将在具有 PCI 接口的版本中可用，这是非常不可能的）。因此，除非设备设置有任何活动的 VEI 通道，否则无法使用 AT 命令。

不过，可能还有其他更改 APN 的方法。

1我们有一个调试机制，可以将 AT 命令注入任意串行接口，但这本身是在串行接口上​​运行的，由 AT 命令启动。此外，它不会出现在已发布的产品中。

于 2013-04-06T11:42:21.360 回答