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Date: Tue, 27 Aug 2013 10:28:07 +0200
From: myken <myken AT iae DOT nl>
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To: geda-user AT delorie DOT com
CC: Vladimir Zhbanov <vzhbanov AT gmail DOT com>
Subject: Re: [geda-user] Tutorial: VHDL with gEDA
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Reply-To: geda-user AT delorie DOT com

> Hi, Robert
>
> The ipad-1 symbol as a whole is a port which takes a signal from
> the outside and outputs it through its pin to the subcircuit where
> it lives.  That is for the input symbol which it is, the only pin
> is its output. Once again, the symbol is an input for a subcircuit
> but its pin is the output of this symbol which passes an external
> signal to the subcircuit. Therefore, your statement, that the
> pintype attribute is not correct, is wrong. Please, eliminate it.
I see your point. Isn't that a matter of interpretation? If I follow 
your explanation, every input pin should be marked as OUTput. Since 
every pin is connected to something on the outside which outputs its 
signal to my schematic/subcircuit.
Don't get me wrong, if I'm wrong I correct it, I just what to understand.
I like simple, so I use the signal direction. If its going in its mark 
IN, if its going out its mark OUT.
Besides that its very confusing for anyone using vhdl (or verilog I 
think) to put a port marked as OUT into a schematic which translate into 
a signal defined as IN in the vhdl code.
But like I said its a matter of interpretation or even taste. Has anyone 
else have input on this?
>
> Then, I found two typos in your text: 'Frst', and 'rafrc' instead
> 'gafrc'.
Thank you very much. I'll correct them.
>
> And please consider adding your tutorial to the gEDA wiki.
>
> Thanks
>
Definitely, if its considered good enough.