libftdi Archives

Subject: Re: UM245R max speed

From: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Cc: Balog Dániel <skippersd@xxxxxxxxx>
Date: Tue, 14 Aug 2012 14:36:38 +0200
Hi Dániel,

On Sunday, 29. July 2012 16:30:10 Balog Dániel wrote:
> I'm working on a way to read in data form ADCs to a PC via the UM245R.
> It is working, but i could only achieve 630 KB/s compared to the
> theoretical speed of the device (1MB/s with d2xx drivers). I'm
> assuming that my code is inefficient, since I'm only a hobbist at
> programming.
>
> ...
>
> Is there any (obvious) mistakes I made? Did anyone achieved 1MB/s with
> an FT245R chip using libftdi?

your code looks good to me. You might want to try
with libftdi 1.x from git, it's probably faster.

Thomas


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