如何解决错误消息 USB_DEVICE_FEATURE 被禁用的问题？
我目前正在开发 ATMEL 的 AVR32 EVK1104 板，我试图在板上编写 C++ 代码，但它不允许我这样做。该板可以正常工作，但我尝试向其中添加代码，但它擦除了上面的内容。所以现在重新开始，我只是尝试在板上运行示例代码，但我似乎总是得到代码 USB_DEVICE_FEATURE 被禁用。我转到 Windows 注册表并将数据值更改为 3 以确保所有端口均已启用，但我仍然收到相同的错误消息。有人对此有什么想法吗？
I am currently working on an AVR32 EVK1104 board from ATMEL and I am trying to write c++ code onto the board but it is not letting me. The board was functioning but I tried to add code to it and it wiped what was on there. So now starting over I am just trying to run an example code onto the board but I always seem to get the code USB_DEVICE_FEATURE is disabled. I went to windows registry and changed the data value to 3 to make sure all ports were enabled but I still get the same error msg. Does anyone have any ideas about this ?
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如果您尝试使用 JTAGICE 对器件进行编程，那么您可能会擦除内置引导加载程序。如果您没有有效的代码，该板将不会出现在 USB 上。也许您应该使用 JTAG 将引导加载程序放回，然后使用引导加载程序通过 Atmel FLIP 实用程序使用您的代码对设备进行编程。
If you try to program the device with the JTAGICE then you will probably erase the build in bootloader. If you then do not have valid code present the board will not appear on the USB. Perhaps you should use he JTAG to put the bootloader back in and then use the bootloader to program the device with your code using the Atmel FLIP utility.