Tom Panzarella wrote:
On Aug 27, 2007, at 9:50 PM, Jason Stahls wrote:
Triffid Hunter wrote:
ee if the FT232R usb to serial chip supports 9 bit
You'd trust a USB serial chip at 500k+ ? :)
I assume you wouldn't? Can you share why?
We (and many others I know) are using a USB COMi: http://
www.byterunner.com/byterunner/product=name:USB-COMi (It's either the
USB-COMi-SI-M or the USB-COMi-M -- I don't have the device in front
of me right now), to do LIDAR signal processing at 500Kbps (RS422).
We have not experienced any problems. I'm very curious to hear why
you wouldn't trust such a device.
Thanks,
Tom.
I've just had varying degrees of luck with consumer USB to Serial
chips. The FT232 is mass produced, and used all over the place, I'd
compare this in the audio world to products made by Behringer. Their
stuff works most of the time, but it's not the greatest. Another worry
I have about running one at 500k+ is that USB 1.1 has a throughput of
1.2Mbps, take away some for overhead and you're looking at around 1Mbps
usable. A few errors or any weirdness, or something else on the bus
and poof, there goes your 500k throughput.
--
Jason Stahls
Berlet Control Solutions Inc
1715 Meyerside Drive Unit #6
Mississauga, Ontario
L5T-1C5
(905) 564-2710
www.berletcontrolsolutions.com
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