STM CircleOS forum / Connecting USB devices to my Primer2

KPexEA · 2009-04-27 20:53:01

I would like to connect a USB GPS to my Primer2, but I understand that since neither device is a USB Host that it will not work.

I did find that there is a "USB On The Go" specification for this exact issue at:

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

http://www.usb.org/developers/onthego/USB_OTG_Intro.pdf

My question is, is this a software issue that could be fixed by someone (perhaps me) implementing the "On the Go" protocol on the Primer2 or is this not possible due to hardware issues.

Thanks
Kevin

Francis · 2009-04-28 06:40:36

The Primer2 is equipped with a STM32F103E that has a standard 'device' USB controller. The STM32F107 is pin-to-pin compatible, and it has a OTG USB controller.
I don't think that you emulate OTG with an non-OTG device.

# 1 2009-04-27 20:53:01 Connecting USB devices to my Primer2

Connecting USB devices to my Primer2

# 2 2009-04-28 06:40:36 Connecting USB devices to my Primer2

Re: Connecting USB devices to my Primer2

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