可以的，如果你没有外接高速PHY芯片就将其配置成全速模式：
这个是USB驱动文件里面的说明：
* The USB OTG HS Core supports two PHY interfaces:
* (i) An ULPI interface for the external High Speed PHY: the USB HS Core will
* operate in High speed mode
* (ii) An on-chip Full Speed PHY: the USB HS Core will operate in Full speed mode
*
* You can select the PHY to be used using one of these two defines:
* (i) USE_ULPI_PHY: if the USB OTG HS Core is to be used in High speed mode
* (ii) USE_EMBEDDED_PHY: if the USB OTG HS Core is to be used in Full speed mode
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