Re: [myhdl-list] Conversion Example Error in 0.7 Manual

[Christopher F. <chr...@gm...>]

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