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C6748 usb库的疑问

Other Parts Discussed in Thread: AM1808

最近一直在试6748的USB,有如下疑问

1.看了USB库的源码,发现只能支持USB0,不支持USB1。实际情况是否如此?因为两个USB,一个作为DEVICE,以为作为HOST。如果可行,该如何操作或相关资料?

2.USB HUB的驱动在库中未涉及,因为对USB这块基本白痴,确认一下是否可以驱动USB HBU,如果可以,该如何操作或相关资料?