Experimental Physics and
Industrial Control System

[email protected] (Ned Arnold) · Wed, 25 Jun 1997 12:54:45 -0500

> Andrew Johnson wrote:
> 
> > Hi Josep,
> >
> > I think the stuff which Bakul has will just be a new version of the
> > mv167 BSP, which is no use to you on an mv147 - I'd be surprised if they
> > have actually patched vxWorks itself.
> >
> > I'm not sure if this is sufficient, but try just setting the byte at
> > fffe102b to zero.  You can do this manually with:
> >
> > -> m 0xfffe102b,1
> > fffe102b:  02-00
> > fffe102c:  00-.
> >
> > value = 1 = 0x1
> > ->
> >
> > You'll probably have to do this before iocInit though, so you might need
> > to create a program to do it for you which you load and run within the
> > startup script - this code should do the trick:
> >
> > void enableA24dma() {
> >     unsigned char *sbar = 0xfffe102b;
> >     *sbar = 0;
> > }
> >
> > Let me know if this works (or doesn't!).
> >
> > -- Andrew
>
>
>Yes, IT WORKS!!! Many thanks to all the people who replied. I will,
>nevertheless,try to see what John Winans did in the patch for the MVME162 and
>try to
>apply it for the MVME147 as a more elegant solution.
>
>        Josep Perlas
>        

For an even simpler way of poking at memory, place the following in the
startup script :

vxMemProbe(0xfffe102b,1,1,&(mydata = (char)0x0))

	Ned

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System