Hi
Thanks for the link but I had already seen this.
Technologic have come back to me and said the 0WS bit doesn't work
properly. If cleared the timings will adjust. Except they don't. I
now have different timings (much slower).
If I get a solution I will post it here.
Regards
Marc
> Hi,
>
> Marc Bell wrote:
> > We are trying to use the PC104 bus to stream data to an FPGA.
> > We need to speed up the bus timings and so we are adjusting the
> > 0xE800000C register.
> >
> > Either the Preliminary manual online is just plain wrong or I don't
> > have all the setup correct.
> >
> > We've setup the connector to be in PC104 rather than GPIO mode:
> > 0x55555555 to address 0xE8000030
> > 0x55555555 to address 0xE8000034
> > 0x55555 to address 0xE8000038
> > 0x55555 to address 0xE800003C
>
> Have a look at this thread of discussion:
> http://tech.groups.yahoo.com/group/ts-7000/message/13623
>
> There's some information concerning these registers.
>
> But to tell you the truth, i'm agree with you, it seems to me that you
> can't adjust the timing as describe in the manual...
>
> >
> > The manual suggests bits 5-0 adjust strobe length, 9-6 adjust setup,
> > and some other bits adjust err other bits. But none of the settings
> > work properly.
> >
> > For example the manual states:
> > "The minimum (when bits are zero) is 20ns"
> >
> > Well I've tried settings bits 5:0 over the full range of 0x3F downto
> > 0x00 and mine is sitting here generating a 10ns strobe, for ANY
> > setting of the register.
> >
> > The clock on-off control doesn't work either.
>
> I've noticed, that to turn on/off the control, you have to play with
> the bit "activate/deactivate TS special signal".
>
> Please keep this mailing list informed.
>
> >
> > My default was to be: 0x1CC5
>
> i solved my problem by using 0x162A8, 0x16bdc being the value i read
> after booting the full debian distro.
>
> Chris
>
> >
> > Has anyone else adjusted their timings with any success? I've emailed
> > technologic three times and had no response.
> >
> > Regards
> > Marc
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
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