I used one CR95HF demonstration board USB on computer ,it's work well, but : CR95HF.dll library ​CR95HFDLL_USBconnect() Returned value: lngStatus: 0: is connected  and ready to be used ; 1: not connected; I don't how to deal with 2 USB CR95HF on sam...

我现在使用一个DEMO-CR95HF-A　usb在电脑上软件是没有问题的，但用两个ＵＳＢ连接时�?知�?�如何作开�?�区分，​CR95HFDLL_USBconnect Returned value: lngStatus: 0: is connected  and ready to be used ; 1: not connected; 如果是两�?�USB读�?�器如何区别是哪�?�USB？（if two or more USB connect ,how to deal with ?）　如何�...