Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

(Q) about data-line pulsing in USB_OTG

Status
Not open for further replies.

asicpark

Member level 1
Joined
May 14, 2004
Messages
35
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
273
Hi all,

I have a question about data-line pulsing in OTG spec.
I can't understand how the B-device make the D+ line go to high using pull-up resistor. Because at that time the Bus voltage is off, so there is no power source to rise the D+ line to high. Is there any power in the B-device?
Please anyone who know this about it explain to me.

Thanks,
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top