On 23 Dec 2007 at 8:45, [EMAIL PROTECTED] wrote:
Rayh and Emory,
Yes it's a standard pc with an onboard parallel port.
I have it configed as out with "0x0378 out".
The bios choices I have are Normal, Bi-Dir, EPP, ECP...
Normal is where it was set.
Bi-Dir no change
EPP 1.7 pin 1 works... 8, 9, 14, 16 don't the rest are ok
EPP 1.9 pin 1 works... 8, 9, 14, 16 don't the rest are ok
ECP pin 1 works... 8, 9, 14, 16 don't the rest are ok
I tried to invert pins 8, 9, 14, 16 but no change. I've ordered some
parallel port cards and will disable the onboard one I think.
Thanks
John
> These suggestions may be irrelevant, John. I've not had a full dose
> of coffee.
>
> Is the bios for this parport set to spp or out?
> Have you tried inverting these pins using HAL's parport parameters?
>
> I seem to remember that a couple of the pins you list were considered
> inverted in hardware but that diagram seems to have gone away. From
> the current HAL User Manual it sounds like HAL takes account of pins
> that were inverted in hardware.
>
> Also long ago we had to use external pull-up or pull-down resistors to
> create a well behaved parport.
>
> Rayh
>
> Did you try the .hal equivalent of explicitly configuring the parport
> like: loadrt hal_parport cfg="0x0378 out"? And as Rayh said, you might
> need resistors. Is it a "standard" desktop PC with on-board parport?
>
> Keep us posted,
> Emory
>
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