Design question about the SpokePOV

SpokePOV kit for bikes

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DSlage
 
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Joined: Wed Jan 11, 2006 7:05 pm

Design question about the SpokePOV

Post by DSlage »

I think your SpokePOV design is elegant, well thought out, and well laid out. When building this project and reviewing the schematic it is obvious that this design has 0% body fat. That is why I am curious about the lonely resistor R1. R1 is the pull-up resistor for the ee_cs connection on the eeprom.

The reference doc from Atmel doesn't indicate the need for a pull-up resistor.
http://www.atmel.com/dyn/resources/prod ... oc2595.pdf

Other designs I found don't use one either.
http://www.windmeadow.com/node/24

I seem to remember that this was a "best practice" from one of my design classes but I was wondering if there was problem with a prototype that caused you to add this.

It's not a problem if you don't remember I was just curious.

Thank you

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