保存到USB软盘驱动器时DSO7104A有时会重新启动

我从来没有听说过这个。
尝试不同的USB记忆棒。
必须是FAT格式，并且它不能将自己标识为CD驱动器（一些较旧的驱动器）。
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     以下为原文

  I've never heard of that.

try a different USB stick.  has to be a FAT format, and it can't ID itself as a CD drive (some older ones do).

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此示波器上唯一官方支持的设备是USB记忆棒。
它不是PC，也没有驱动程序支持其他任何东西。
您可以尝试在中间使用带有电源集线器的软盘驱动器，看看是否存在驱动器耗电过多的问题。
不过，我不确定示波器是否会支持该集线器。
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     以下为原文

  The only officially supported devices on this scope are USB memory sticks. It is not a PC, and doesn't have the drivers to support anything else. You might try using your Floppy Drive with a powered hub in the middle to see if it's a problem with too much power drain by the drive. I'm not sure if the scope will support the hub, though.

Al

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感谢您的回复。
重启仅偶尔发生，可能是10次中的1次。
当示波器不重启时，我可以将文件保存到USB软盘驱动器中的软盘中。
因此，它不是驱动器格式问题或软件驱动程序问题。
对我来说很奇怪，如果这是一个电源问题，整个范围将重新启动;
似乎USB端口的电源会向后折叠，从而阻止文件保存操作，但将示波器的其他电源保持在正常水平。
另一个注意事项：当我第一次安装软盘驱动器时，即在我第一次将USB电缆插入示波器后，我还没有看到范围重新启动;
只有当我按下“保存”按钮时才会重启。



     以下为原文

  Thanks for your reply.

The reboot only occurs occasionally, maybe 1 out of 10 times. When the scope doesn't reboot, I'm able to save files to a diskette in the USB floppy drive. So, it's not a drive format issue or a software driver issue. 

It's odd to me that if it's a power problem the entire scope would reboot; seems like the USB port's power source would fold back, preventing a file-save operation but leaving the scope's other power supplies at normal levels.

Another note: I haven't seen the scope reboot when the diskette drive first mounts, i.e., after I first plug the USB cable into the scope; reboot has only happened when I push the 'Save' button.

听起来您的设备正处于该范围的功能边缘。
如果您的设备降低系统功率，那么我可以看到它导致重启的位置。
我还可以看到问题只会在您尝试保存数据时浮出水面。
我怀疑当磁盘驱动器中的电机试图旋转磁盘时，它会消耗最多的电量。
验证发生了什么的唯一方法是构建一个可以让您查看USB总线上的电压和电流的夹具。
我只想到了一个潜在的解决方案......我看过'Y'电缆允许2个USB端口驱动一个设备，事实上我有一些USB硬盘驱动器。
如果您使用其中一个连接到外部电源，您可能可以避免此问题。
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     以下为原文

  Sounds like your device is sitting right at the edge of the power capabilities of that scope.

If your device draws down system power, then I can see where it cause a reboot.

I can also see that the problem would only surface when you try to save data. I suspect that's when the motor in the disk drive is trying to spin up the disk, and it draws the most power.

The only way to verify what's happening would be to build a fixture that would allow you to look at the voltage and current on the USB bus.

I just thought of a potential solution... I have seen 'Y' cables that allow 2 USB ports to drive one device, in fact I have a few on USB hard drives. If you use one of those, connected to an external supply, you might be able to avoid this problem.

Al

Disclaimer: For more reliable response, you should consider calling your local Agilent Technical Call Center. The Agilent Forums are monitored on an "as available" basis, and aren't necessarily the fastest way to get technical questions answered.