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Subject: Re: libftdi@xxxxxxxxxxxxxxxxxxxxxxx is a subscribers only list

From: Emmanuel Blot <eblot.ml@xxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Cc: Petr Jakeš <petr.jakes@xxxxxx>, Vladimir Yakovlev <nagos@xxxxxxxx>
Date: Wed, 16 Mar 2011 22:20:41 +0100
> What about an 50Hz output pin? Is it doable to have FT2232D for booth, SPI
> and output pin?

There's no way to know/control how much time is spent between the
actual "execution" of two consecutive FTDI commands: clock jitter
comes from various sources: FTDI FIFOs, USB bus latency + async clock
delay (USB HW frames vs. USB stack), various software stacks, multi
tasking scheduling, etc.

If you need a precise clock, I think you should not rely on bit
banging mode at all.

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