[time-nuts] USB to Serial Connectors for GPS Modules
Ulrich Bangert
df6jb at ulrich-bangert.de
Thu Jun 5 04:28:47 UTC 2008
Matthew,
consider the latency times of ANYTHING on a USB provided virtual serial
connection to be in the order of 1 ms. If no serial data is send but
only status signals change their state the latency can even be higher.
Best regards
Ulrich Bangert
> -----Ursprungliche Nachricht-----
> Von: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] Im Auftrag von Matthew Smith
> Gesendet: Donnerstag, 5. Juni 2008 03:26
> An: Time Nuts List
> Betreff: [time-nuts] USB to Serial Connectors for GPS Modules
>
>
> Hi Folks
>
> Are there any issues with connecting computers to GPS modules through
> USB to serial devices like the FTDI FT232R, as opposed to 'native'
> serial ports? At the moment, I'm thinking in the context of an NTP
> server, but am interested in a general context should I need
> to move to
> USB-only PCs. Didn't know if there were any latency issues
> or anything.
>
> Cheers
>
> M
>
> --
> Matthew Smith
> Smiffytech - Technology Consulting & Web Application Development
> Business: http://www.smiffytech.com/
> Personal: http://www.smiffysplace.com/
> LinkedIn: http://www.linkedin.com/in/smiffy
>
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