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@LinuxRk3588 1.CM5-EVB的typec接口只有供电功能，没有USB和DP功能。 2.调试接口可以使用TTL或者网口，这个底板的原理图和PCB文件在wiki可以下载。图纸上有完整的信号定义。 3.SATA电源是标准的12V 5V设计，丝印上也有标注。 4.上层的USB3.0接口是OTG接口，可以软件配置HOST或者DEVICE功能，其它USB接口都是HOST。
@george Thank you. This is very helpful.