Week 2 – Papilio Introduction Series: Move Pins on the Fly

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Learn how to shift AVR8 peripherals to any I/O pin.

“Possibly the most exciting feature of the Papilio is the ability to shift peripheral functionality to any pin at any time, completely on the fly. Shifting SPI pins allows you to easily connect up to 12 SPI devices at once! Or control multiple stepper motors by shifting PWM outputs! Finally, shifting functionality means you never need to worry about where to connect Wings. Every I/O pin is equal, so go ahead and connect your Wing to any open Wing Slot, the FPGA can shift to accommodate the Wing!”

Visit the Papilio.cc wiki to view the full article or watch the Infrared Wing Quick Start Video to see a demo of moving a PWM pin on the fly.

Skip to 3:08 if you just want to see the PWM pins moved.

Next topics:

  • VGA sketches – how to get started with generating VGA output.
  • Sump Logic Analyzer – how to get started using and synthesizing the Sump Logic Analyzer on the Papilio.

If you have any Intro topics that you would like to see covered please respond in the comments section.

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