[PD] dmx-usb

wolfgang schwarzenbrunner schwarz at gen-control.com
Thu Dec 23 14:11:50 CET 2004

At 18:49 22.12.2004, Olaf Matthes wrote:
>wolfgang schwarzenbrunner wrote:
>>does anybody know if its possible to use to dmx-usb devices
>>parallel (one for in - one for out) in general? and of course in pd?
>Yes and no. - Depends on which DMX USB devices you're talking about, which 
>OS and whether a Pd object exists for it at all.
>The answer is yes if you're using the Open DMX USB Interface together with 
>my Pd externals.

yes -- the entec one if i am right -- and your externals -- and windows 
(which always seems to limit possibilities)

>  But: input in general is not working that good because the hardware 
> receive buffer on the interface is too small to hold a full 512 channel 
> DMX message. So when trying to receive a lot of DMX channels you'll get 
> wrong input or just an error message and no input at all.

i dont think i will really need more than 12 in channels...

>  I tried to receive 12 DMX channels and send 512 channels at the same 
> time using two interfaces and it worked.

thanks... that cleared up a lot..

regards wolfgang


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