Resistor on DB3 of Monochron?

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adamwolf
 
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Resistor on DB3 of Monochron?

Post by adamwolf »

What's the 1k resistor for on DB3 in the data bus between the LCD and microcontroller in the Monochron schematic? I looked in the datasheet for the display and saw nothing.
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len17
 
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Re: Resistor on DB3 of Monochron?

Post by len17 »

It's because the microcontroller pin is shared between the LCD and the programming interface. See http://ladyada.net/make/monochron/design.html for more info.

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