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USB Superspeed Peripherals

Anonymous
Not applicable

我在CYUSB301X/CYUSB201X手册中看到,下面一段话

3014.png

使用USB boot mode时,FX3的VBUS引脚要和USB host 连接。

我们现在使用SPI boot mode,FX3的VBUS引脚还要和USB host 连接吗?

我们的设备功率在6W,想通过外部电源给设备供电,不使用USB3.0接口供电,FX3的VBUS引脚还需要和USB host 连接吗?不连接的话会影响设备加载或速度识别吗?

谢谢。

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