The Firewire speed is not dependent on software. That is defined by the physical interface, which on the FLEX-x000 is IEEE 1394a or Firewire 400 (400 Mb/s.) that uses a 6-pin connector
As per the IEEE 1394b or Firewire 800 (800 Mb/s) specification, a 1394b HBA (host bus adapter) can connect to 1394a devices as it is backwards compatible to the slower rates and 6-pin connectors of FireWire 400. However, while the IEEE 1394a and IEEE 1394b standards are compatible, FireWire 800's connector is different from FireWire 400's connector, making the legacy cables incompatible. A "bilingual" cable allows the connection of older 1394a devices to the newer 1394b port. While this is the spec, the reality of the situation is that to doesn't always work. Windows XP and Vista do not have native support for 1394b HBCs and require hardware vendor specific drivers. Win7 does have native support for both the 1394a and 1394b HBCs, so the probability of a 1394b adapter working properly is greater than with earlier Windows operating systems. -Tim -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ken Danser Sent: Saturday, December 18, 2010 12:02 AM To: [email protected] Subject: [FlexEdge] Firewire 400 /800 Hello, I am curious if PSDR is now written so that the fire-wire 800 can be used instead of the fire-wire 400? If I am thinking right, the hardware is only design for the 400 but I have also thought maybe someone found a way to modify it to work on the 800. So the question stands! Thank you, Ken K3YI _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
