Re: MCF547X bus error

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Well yes I could have a power of two separate regions but not in a way that
could fill all the gaps in my memory map.

I could also remove gaps by letting memories mirror, but then errant memory
accesses would just go undetected. A big step backwards from where we were
20 years ago.

2009/3/11 Allon Stern <[email protected]>

>
> On Mar 11, 2009, at 8:52 AM, nop head wrote:
>
>  Dave,
>>  Sorry, my last reply was rubbish. The spare chip select will of course
>> terminate the cycle, but only for one duff region.
>>
>> Chris
>>
>
> Is this true? On the 5282 you define a chip select's base address and mask.
> You can define a large region and a discontiguous mask to define multiple
> regions for one chip select.
>
> -
> allon
> ---
>
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Well yes I could have a power of two separate regions but not in a way that=
 could fill all the gaps in my memory map. <br><br>I could also remove gaps=
 by letting memories mirror, but then errant memory accesses would just go =
undetected. A big step backwards from where we were 20 years ago.<br>
<br><div class=3D"gmail_quote">2009/3/11 Allon Stern <span dir=3D"ltr">&lt;=
<a href=3D"mailto:[email protected]">[email protected]</a>&gt;<=
/span><br><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid=
 rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class=3D"im"><br>
On Mar 11, 2009, at 8:52 AM, nop head wrote:<br>
<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Dave,<br>
=A0Sorry, my last reply was rubbish. The spare chip select will of course t=
erminate the cycle, but only for one duff region.<br>
<br>
Chris<br>
</blockquote>
<br></div>
Is this true? On the 5282 you define a chip select&#39;s base address and m=
ask. You can define a large region and a discontiguous mask to define multi=
ple regions for one chip select.<br>
<br>
-<br>
allon<br>
---<div><div></div><div class=3D"h5"><br>
<a href=3D"mailto:[email protected]" target=3D"_blank">coldfire@wildric=
e.com</a> =A0 =A0 =A0 =A0 =A0 =A0 =A0Send a post to the list.<br>
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<br>
</div></div></blockquote></div><br>

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