Thank you for all the replies.
Ian, I got stuck on step 5 for about half an hour.
;-)
good day to all!
----- Original Message -----
From: "Ian Wilson" <[EMAIL PROTECTED]>
To: "Protel EDA Forum" <[EMAIL PROTECTED]>
Sent: Tuesday, May 22, 2001 7:08 PM
Subject: Re: [PEDA] POWER PROBLEMS
> On 03:27 PM 22/05/2001 -0400, Bryan Bernesi said:
> >Hello,
> >
> >Although I have successfully completed one project, I am experiencing a
> >rather strange problem; I am trying to make a board that contains
> >components with multiple parts e.g. 4093, LM358. The board also has
> >besides ground, +5V and +12V supplies.
> >
> >When I "UPDATE PCB" I can see that the ratsnest for +5v and +12v are
> >either not connected or VCC and GND of the IC are connected together but
> >not connected to the rest of the VCC and GND nets.
> >
> >The problem seems to appear only to power and GND pins of a multipart
> >component. Everything else seems to be OK.
> >
> >Any help with this problem would be appreciated.
> >
> >Regards,
> >
> >Bryan
>
> There goes those hidden pins again.
>
> 1) Look up help on hidden pins and hidden pin connectivity
> 2) go to the sch library part
> 3) unhide every pin on all of the parts of the multi-part component
(noting
> the multiple VCC and GND pins that Protel insists on adding to most of
> their multi-part symbols - remove them from all but one or make a separate
> power part) - save to your own library
> 4) repeat in perpetuity for all new Protel supplied parts that you use
> 5) swear at Protels flawed hidden pin connectivity lot
> 6) calm down
> 7) decide to build your own library of sch symbols and keep well away from
> hidden pins, forever
>
> Note for Terry and Abd ul-Rahman (supporters of hidden pin connectivity
> from memory):
> My opinions of course - others say they like hidden pin connectivity. But
> I see beginners trapped with it so often that I think it should not be the
> default setting. Unfortunately all of Protel Sch libraries use the
mis-feature.
>
> Ian Wilson
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