mtk平台usb接入检测问题5 4 3 2 1 D D R211 VUSB 1 USB_DP R212 33R 1.5K DP T210 AVLC18S02015 vusb由gpio控制开和关,输出3.3v C C 2 . . 1 1 USB_DM R213 33R 1 DM 1 ADC6_USB_ID 1 RB520S-30 D201 2 T209 AVLC18S02015 R215 VUSB B R214 100K B 470K A 2 . . A Title Size A Date: 5 4 3 Document Number Tuesday, November 06, 2007 2 Rev Sheet 1 1 of 1 ……