Build a 100MHz Logic Analyzer with Raspberry Pi Pico

Transform a Raspberry Pi Pico (or any RP2040 board) into a simple logic analyzer in just 5 minutes.

Introduction

A logic analyzer is an electronic instrument that captures and displays multiple signals from digital systems or circuits. It can convert captured data into timing diagrams, protocol decoding, state machine tracking, and opcodes, or associate opcodes with source-level software. Logic analyzers have advanced triggering capabilities, making them very useful when users need to view the timing relationships between many signals in a digital system.

μLA is SUMP/OLS compatible logic analyzer firmware suitable for RP2040-based boards.

Features

16 channels
100 MHz sampling rate (up to 250 MHz when properly optimized (overclocked)), capturing 1 sample per system clock cycle
200 KB memory
Fast triggering using PIO

Supported Hardware

Raspberry Pi Pico
RP2040-zero
All RP2040-based boards (must have USB connectivity)

Installation

Download the latest µLA firmware from the link below

https://github.com/dotcypress/ula/releases

Hold the BOOTSEL button while connecting the board to the computer
Copy the previously downloaded firmware file to the RP2040
Use PulseView or sigrok-cli for host data acquisition and analysis

https://sigrok.org/wiki/PulseView

https://sigrok.org/wiki/Sigrok-cli

Enjoy

Code

https://github.com/dotcypress/ula

https://sigrok.org/wiki/PulseView

https://sigrok.org/wiki/Sigrok-cli

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