Helge, On Friday, 14. May 2010 22:48:07 Helge Lenz wrote: > So is there any way to make it work with this type of chip or should I > stop trying and use something else? The one thing that I have not tried > so far is to put the signal to one of the CBUS lines and use the CBUS > bitbang mode. So could this be an option to make it work? Or should I > use the D2XX library for linux instead of libftdi? > > I would really appreciate some hints.
The USB bus doesn't give you a guarantee about the timing, so it might be too slow to properly modulate a clean carrier signal. There is the isochronous USB mode which sounds suitable for this kind of application, though it doesn't handle USB packet loss at all. Maybe add a small microcontroller to act as a receive buffer and to modulate a clean carrier signal? Then you are in control what is happening with the signal... Cheers, Thomas -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to libftdi+unsubscr...@developer.intra2net.com
