anyone know a source of code to support this protocol, for AVR?

 

United States Baton Team Marine Corps?

 

http://digital.ni.com/public.nsf/allkb/044FA220F32774ED86256DB3005850CA

http://www.avrfreaks.net/index.php?name=PNphpBB2&file=printview&t=97330&start=0

Google told me.

 

Labview will be the app. I have the USBTMC specifications, but after spending a year implementing the image class on a 89AT5131, I would rather go with packaged code and concentrate on the frontend. Open source is king.

 

That AVR Freaks thread has links to "run out of the box" code for use with VISA, at least I thought I saw a link to that, there's a post there if you scroll down with a bunch of links.

 

I double checked, but there was no such.

 

anyone know a source of code to support this protocol, for AVR?

Unfortunately not for AVR...

But written in plain C for a EZ-USB FX2 (8052 core) and it is completely opensource and there is also sourcecode documentation using doxygen available.

The firmware implements USBTMC, most parts of the USB488 subclass (we have no interrupt endpoint), a SCPI parser and handles all mandatory IEEE488.2 and SCPI1999 commands. It also provides USB DFU class handling for firmware upgrade.

Project description:
http://labs.ti.bfh.ch/gecko/wiki/systems/gecko3com/start

Web access to the source code:
http://opencores.org/websvn,listing...fw/#path_gecko3_trunk_GECKO3COM_gecko3com-fw_

Hope it will help

 

Thank you. A quick overview suggests this may be of great help.