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code-by
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Posted by code-by: Tue. Apr 20, 2010 - 12:57 PM
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Hi!
How to configure port (ex. PORTA.0) in xMega for corresponding to
1. tri-state
2. input with pull-up
in mega/tiny?
thank )

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Tools, Compilers and General Programming
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Gold Markclawson
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Joined: Mon. Jul 18, 2005
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Location: (using avr-gcc in) Finchingfield, Essex, England
Posted by clawson: Tue. Apr 20, 2010 - 01:05 PM
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Doesn't the code in AVR1313 provide the solution? IN fact for Xmega you want to download all the PDFs and ZIPs for AVR1300 to AVR1318

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code-by
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Posted by code-by: Tue. Apr 20, 2010 - 01:24 PM
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I don't find any tri-state in AVR1313...

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dkinzer
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Posted by dkinzer: Tue. Apr 20, 2010 - 02:44 PM
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code-by wrote:
How to configure port (ex. PORTA.0) in xMega
When an input, the pin is tri-state by default. If you want to enable the pullup or pulldown resistor you need to manipulate the corresponding PINnCTRL register, e.g. PORTA.PIN0CTRL. There are other fancy things you can do by way of the PINnCTRL register.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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