PX2 chip-based universal serial bus (USB) On-The-Go (OTG) function switching circuit

The invention provides a PX2 chip-based universal serial bus (USB) On-The-Go (OTG) function switching circuit, comprising a USB power detection circuit, a USB power supply circuit, an OTG-ID and ADC-KEY control circuit and a USB connecting circuit, wherein the input end of the OTG-ID and ADC-KEY con...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN XINGHUI, DAN CHUNMEI, HONG BINGLIN, CHEN YONGLIANG, ZHANG DAIXIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The invention provides a PX2 chip-based universal serial bus (USB) On-The-Go (OTG) function switching circuit, comprising a USB power detection circuit, a USB power supply circuit, an OTG-ID and ADC-KEY control circuit and a USB connecting circuit, wherein the input end of the OTG-ID and ADC-KEY control circuit is connected with an external interface seat of a vehicle-mounted multimedia terminal, the first output end of the OTG-ID and ADC-KEY control circuit is connected with a first input/output (IO) interface of a PX2 chip, and the second output end of the OTG-ID and ADC-KEY control circuit is connected with a second IO interface; the input end of the USB power supply circuit is connected with a third IO interface, and the output end of the USB power supply circuit is connected with the USB connecting circuit; the input end of the USB power detection circuit is connected with the USB connecting circuit, the first output end of the USB power detection circuit is connected with a fourth IO interface, and the