This logic analyzer for Arduino supports 6 channels consisting of digital pins 8-13, which are the first 6 bits (0-5) of PORTB. Arduino pin 13 / bit 5 is the Arduino LED, bits 6 & 7 are the crystal ...

The Stellaris logic analyzer is based upon this earlier build that took code from a SUMP comparable Arduino logic analyzer and ported it to the much faster and more capable Stellaris Launchpad ...