On Thu, 2011-08-25 at 22:18 +0300, Viesturs Lācis wrote:
> 2011/8/25 Kirk Wallace <[email protected]>:
> >
> > Oops,  255 int ECR looks suspicious, usually the extended register is
> > 0x400 above the base, so 0x378 + 0x400 = 0x778.
> >
> > Might try "sudo ./showport 0378 0778 e"
> 
> Ok, tried that. How does this look?
> 
> 
> waterjet@waterjet:~$ sudo ./showport 0378 0778 e 037a 077a e
> [sudo] password for waterjet:
> ~~~~~
> Base @ 0x378
> Extended @ 0x778
> DPR: 0
> DSR: 214
> DCR: 196
> EPPA: 0
> EPPD: 0
> 
> CFA: 0
> CFB: 255
> ECR: 149

Looks better.
Referencing:
http://www.beyondlogic.org/spp/parallel.htm#11

0x149 = 0b10010101

1 0 0 1 0 1 0 1
---------------
7 6 5 4 3 2 1 0

m     E D E F F
o     C M C I I
d     P A P F F
e           O O
      i e s 
      n n r f empty
      t   v u
          c ll

So "sudo ./showport 0378 0778 e" looks good. Maybe.

-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA


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