[fpc-pascal] USB serial interface

Rainer Stratmann RainerStratmann at t-online.de
Tue Dec 26 20:23:56 CET 2006

Am Dienstag, 26. Dezember 2006 18:57 schrieb Marco van de Voort:
> > The best USB-serial Interfaces for Linux are the ones with FTDI Chip
> > inside. http://www.ftdichip.com/
> > http://www.ftdichip.com/Products/EvaluationKits/USB-Serial.htm
> Do they have the same latency as a normal serial port? I've tried several
> usb-serial ports, and they all have horrible latencies compared to an
> onboard (or PCI card).
For me the latency is not (very) important. I do not feel a lack of latency.
We tried USB converters with prolific chipset and it hangs up then, so FTDI 
chips would be better. I read also somewhere a lack of latency. May be it is 
also a question of the Kerneldriver and the driver will improve more in the 


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