On 6/9/2011 4:29 PM, Jan Decaluwe wrote:
> On 06/09/2011 12:59 PM, Christopher Felton wrote:
>> A new user to MyHDL was trying to convert one of the examples in the
>> manual on pages 67-68 in the pdf version for release 0.7
>> (conversion_examples.rst)
>> http://www.myhdl.org/doc/current/manual/conversion_examples.html.
>>
>> The example failed to convert for a "output port read internally" error.
>> This error only appears to occur with the 0.7 release. This might be
>> a known issue.
>>
>> With the latest hg repo, 0.8dev, the error does not occur but rather a
>> warning.
>
> Are you sure? I quickly investigated the repo, and it seems that
> this was always a warning. At some point however, there was no
> warning and the VHDL would be incorrect because it generated
> an 'out' instead of an 'inout'. But that's quite some time ago.
>
> Jan
>
Nope, not sure. Looking at it again I am in error. It was something
much more basic. When the acquaintance copied the example from the pdf
version of the document,
(from page 67-68 of:
http://www.myhdl.org/lib/exe/fetch.php/doc:myhdl.pdf),
his copy started at the def and did not include the ACTIVE_LOW ... line.
When I quickly (ahh, there's the issue, quickly) read his stack trace
I combined the warning with all the other stuff and jumped to the wrong
conclusion. All this was in an IM (chat) so when I sent a modified
version back to test I didn't even notice I copied it correctly where as
he copied it incorrectly.
In summary, there is no error in the example, just the possibility to
cut-n-paste incorrectly :) Sorry for the distraction, thanks for checking.
Chris
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