Nick Stedman wrote:
> For those who have used this chip, what sorts of baud rates are you
> achieving. Can you describe your experience in general. The 232AM
> chip seems
> to indicate that the 1MB/s USB rate is downscaled to an actual baud
> rate of
> RS232, around 115 kb/s (Hope I'm not way off here). To me the
> excitement of
> USB is that you can pass data for video or other high bandwidth
> applications.
> TIA
> Nick


Remember that they have two fashion (at least) of those chips, the
serial (232) and the parallel (245) units.  The serial has the baud
rate limitation, lets say 115kbps, what brings the throughput down to
(115000/10 bits) = 11.5 kBps (kBytes/second), what is somehow very
slow for video or wide band applications.  The 245 uses parallel
communication, what can gives you at least 8 times faster throughput,
or around 90kBps, but I think you can get much better than that - had
no time yet to read all the docs about it.  If you have at least 10 or
11 port bits available at the uC for communication, then the 245
appears to be the best pick.  I didn't see yet their Windows drivers,
if you can use the DLLs or Drivers normaly as read/write or else in
C++ or VB.  If someone already did it, I will appreciate any info
about it.

Thank You
Wagner Lipnharski - email:  wagner@ustr.net
UST Research Inc. - Development Director
http://www.ustr.net - Orlando Florida 32837
Licensed Consultant Atmel AVR _/_/_/_/_/_/

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads