The answer didn't leap out at me from the data sheet, so... I'm working on a Cypress-FX2 based board, and the driver has decided to bring the link up in full-speed mode rather than high-speed mode. Can anyone offer some pointers on how to force it to high-speed? The port does work at 4800Mbps, But I've never seen it do that with this FX2. TIA, G.
Force high-speed (480Mbps) with Cypress FX2
Started by ●May 22, 2008
Reply by ●May 23, 20082008-05-23
> I'm working on a Cypress-FX2 based board, and the driver has decided > to bring the link up in full-speed mode rather than high-speed mode.Are you sure that its a high speed port and that your descriptors are correct? (Apologies for any egg sucking)> Can anyone offer some pointers on how to force it to high-speed? The > port does work at 4800Mbps, But I've never seen it do that with this > FX2.Surely not quite /that/ fast :-) Andrew
Reply by ●May 23, 20082008-05-23
On May 22, 11:04 pm, Andrew Jackson <a...@nospam.com> wrote:> > I'm working on a Cypress-FX2 based board, and the driver has decided > > to bring the link up in full-speed mode rather than high-speed mode. > > Are you sure that its a high speed port and that your descriptors are > correct? (Apologies for any egg sucking) > > > Can anyone offer some pointers on how to force it to high-speed? The > > port does work at 4800Mbps, But I've never seen it do that with this > > FX2. > > Surely not quite /that/ fast :-) > > AndrewHi, I'm pretty sure it's a high speed port. Device manager reports it as an EHCI, and with my pocket drive (USB2->SATA) I get 15M bytes/second transfer rates. What would I look for in the descriptors? And yes, that was a typo. Oops. G.