设备不会枚举

我试图在FX3和主机之间创建一个大容量的数据通道。输入到FX3的数据由FPGA馈送。我非常使用SLaveFIFO应用程序（AN6997）作为参考，但是修改了以下内容：1）FPGA和FX3之间的数据通道是16位宽的。
与往常一样，Windows将FX3识别为引导加载设备，控制中心也是如此。然而，在编程之后，我在任何地方都看不到设备。附件中有问题的截图。
提前感谢。
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枚举错误20171113DOX
280 K



     以下为原文
  I'm trying to create a bulk data channel between the FX3 and host. The data input to the FX3 is fed by an FPGA. I have pretty much used the slavefifo application(AN65974) as the reference but modified the following : 1)The data channel between the FPGA and FX3 is 16 bits wide.

As usual,windows recognizes the FX3 as a bootloader device and so does the control center. However, after programming, I do not see the device anywhere. The enclosed document has screenshots of the problem.

Thanks in advance.

HV

•   EnumerationError20171113.docx 280.0 K