> What about one of FTDI's USB - FIFO converters? (or USB-UART) > the FIFO ones have > "Data transfer rate to 1 Megabyte / second - D2XX Direct Drivers." > or > "Data transfer rate to 300 kilobyte / second - VCP Drivers." > I am not quite sure what D2XX or VCP means, but you can get D2XX for > Mac OS X, Linux, etc.
VCP = Virtual COM Port driver D2XX drivers allow direct access to the USB device through a DLL. (No, they don't seem to explain what a "DLL" is.) The good news is that there are drivers for FreeBSD, OpenBSD, QNC, Linux and OS-X (depending on exactly which OS release you are running and exactly which device). Haven't found anything on drivers for NetBSD, Solaris, or Plan 9. I don't see a transfer rate listed for the various OSes. (1 MB/s vs 300 KB/s) "Entire USB protocol handled on the chip - No USB-specific firmware programming required." "Simple interface to MCU / PLD / FPGA logic with simple 4-wire handshake interface." "Fully integrated clock - no external crystal, oscillator, or resonator required." Some of the evaluation kits look promising, a DIP type "package" with USB connector. http://www.ftdichip.com/Products/FTEvaluationKits.htm Haven't seen prices yet... > There is also a so-called "USB to UART Switch" manufactured by Dallas/ > Maxim Semiconductors > that can switch the two signals - this would be useful for having > both, but just USB would probably work. switch the two signals? You lost me there. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
