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'[PIC] Need caps across the power supply?'
2008\06\30@200908 by Tomás Ó hÉilidhe

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Tomás Ó hÉilidhe wrote:
> http://users.imagine.ie/toe/scoth3.pdf

If you look at my latest schematic, you'll see I have 100 nF caps across
Vdd and Gnd of the 887.

Given that the 887 is the only component on my board that draws current,
do I actually need these caps?

Also do I need a cap across the battery itself?

2008\06\30@220816 by Thomas C Sefranek

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----- Original Message -----
From: "Tomás Ó hÉilidhe" <spam_OUTtoeTakeThisOuTspamlavabit.com>
To: "Microcontroller discussion list - Public." <.....piclistKILLspamspam@spam@mit.edu>
Sent: Monday, June 30, 2008 8:08 PM
Subject: [PIC] Need caps across the power supply?


> Tomás Ó hÉilidhe wrote:
>> http://users.imagine.ie/toe/scoth3.pdf
>
> If you look at my latest schematic, you'll see I have 100 nF caps across
> Vdd and Gnd of the 887.
>
> Given that the 887 is the only component on my board that draws current,
> do I actually need these caps?

Always include the bypass cap, to prevent the PIC from becoming more of a
noise transmitter.
>
> Also do I need a cap across the battery itself?

I would, but I use bypass caps liberally.

Tom

 *
 |  __O    Thomas C. Sefranek  tcsspamKILLspamcmcorp.com
 |_-\<,_   Amateur Radio Operator: WA1RHP
 (*)/ (*)  Bicycle mobile on 145.41, 448.625 MHz

ARRL Instructor, Technical Specialist, VE Contact.
hamradio.cmcorp.com/inventory/Inventory.html
http://www.harvardrepeater.org


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'[PIC] Need caps across the power supply?'
2008\07\01@080430 by olin piclist
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Tomás Ó hÉilidhe wrote:
> Tomás Ó hÉilidhe wrote:
>> http://users.imagine.ie/toe/scoth3.pdf
>
> If you look at my latest schematic, <blah, blah, blah>

You should stick to one thread for your project, as others have already told
you several times.  It's becoming difficult to figure out what is going on.
It seems you start a new thread when someone asks you to do work in a
existing thread.

So how are you doing on the LED measuring assignment?  Why should people
help you with new issues when you haven't resolved old ones?


********************************************************************
Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
(978) 742-9014.  Gold level PIC consultants since 2000.

2008\07\01@113217 by Tomás Ó hÉilidhe

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Olin Lathrop wrote:
> So how are you doing on the LED measuring assignment?  Why should people
> help you with new issues when you haven't resolved old ones?


Sorry Olin I won't be replying to you from now on, I've decided I don't
like you.

2008\07\01@114932 by olin piclist

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Tomás Ó hÉilidhe wrote:
>> So how are you doing on the LED measuring assignment?  Why should
>> people help you with new issues when you haven't resolved old ones?
>
> Sorry Olin I won't be replying to you from now on, I've decided I
> don't like you.

Yes, I was the one that suggested you do some (gasp!) work.  Since you have
a problem with that, I suspect I won't be the only one refusing to help you.


********************************************************************
Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
(978) 742-9014.  Gold level PIC consultants since 2000.

2008\07\01@120238 by Tomás Ó hÉilidhe

picon face


Olin Lathrop wrote:
>> Sorry Olin I won't be replying to you from now on, I've decided I
>> don't like you.
>>    
>
> Yes, I was the one that suggested you do some (gasp!) work.  Since you have
> a problem with that, I suspect I won't be the only one refusing to help you.
>  


Person 1:  You're fired!
Person 2: You can't fire me, I quit!

If saving face is your game you're a bit late.

2008\07\01@122601 by Nicola Perotto

picon face

Olin Lathrop wrote:
> Tomás Ó hÉilidhe wrote:
>  
>>> So how are you doing on the LED measuring assignment?  Why should
>>> people help you with new issues when you haven't resolved old ones?
>>>      
>> Sorry Olin I won't be replying to you from now on, I've decided I
>> don't like you.
>>    
>
> Yes, I was the one that suggested you do some (gasp!) work.  Since you have
> a problem with that, I suspect I won't be the only one refusing to help you.
>  
Hey, you are right!!!
I'm very tired to read that young ...
Hi got a lot of excellents informations and suggestions but doesn't read
and continues to abuse...


>
> ********************************************************************
> Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
> (978) 742-9014.  Gold level PIC consultants since 2000.
>  

2008\07\01@122938 by Martin

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face
Tomás Ó hÉilidhe wrote:
>
> Olin Lathrop wrote:
>>> Sorry Olin I won't be replying to you from now on, I've decided I
>>> don't like you.
>>>    
>> Yes, I was the one that suggested you do some (gasp!) work.  Since you have
>> a problem with that, I suspect I won't be the only one refusing to help you.
>>  
>
>
> Person 1:  You're fired!
> Person 2: You can't fire me, I quit!
>
> If saving face is your game you're a bit late.
>

This is woefully off-topic, completely irrelevant to the PIC-list in any
form, and uninteresting to boot. Take it elsewhere.

-
Martin

2008\07\01@132123 by Wouter van Ooijen

face picon face
Tomás Ó hÉilidhe wrote:
> Sorry Olin I won't be replying to you from now on, I've decided I don't
> like you.

In that case I won't bother to answer you from now on, because you are
clearly not interested in inconvenient truths.

--

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu

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