USB to USB data transfer without pc

[may12]

Hi, and i would like to ask that is the USB to USB data transfer without pc device requires the OTG technolody? Thz in advanced

ps: i m new to USB

[Jan Axelson]

Every USB communication is between a host and and device. The host can be a PC, an OTG system, or an embedded system that doesn't support OTG but has USB host capability.

Jan

[may12]

Thank you very much! 

[may12]

Hi, I am doing my research on this topic and i would like to ask that do the data copier devices use master/slave architecture? the "source" port will act as a master and the "target" port will act as a slave as well.

Thz in advanced 

[Jan Axelson]

Products that copy data from one device to another have USB host capability to enable accessing both devices.

Both the source and target ports are device ports.

The host reads data from the device on one port and writes the the data to the device on the other port.

Jan

[dgojanov]

I am developing an application for non window system on pic platform.

Would like to use standard usb gamepad.

 

How to get a sequences of data sent by gamepad.
Do gamepad vendors provide developers with the available sequences.

Thank you!



 

Any suggestion?

[Jan Axelson]

With the gamepad attached to a PC, you could use a hardware-based or software-only protocol analyzer. See:

http://www.lvr.com/development_tools.htm#analyzers

Also see section 8.4 in the HID Usage Tables document

http://www.usb.org/developers/hidpage/