Build a 100MHz sampling rate logic analyzer for a few dollars and a few minutes

Build a 100MHz sampling rate logic analyzer for a few dollars and a few minutes

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

introduce

A logic analyzer is an electronic instrument that captures and displays multiple signals from a digital system or digital circuit. A logic analyzer can convert captured data into timing diagrams, protocol decodes, state machine traces, opcodes, or can associate opcodes with source-level software. Logic analyzers have advanced triggering capabilities and are useful when users need to see the timing relationships between many signals in a digital system.

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

feature

• 16 channels

• 100 MHz sample rate (250 MHz when properly optimized (overclocked)), 1 sample per system clock cycle

• 200 KB RAM

• Quick trigger using PIO

Supported hardware

• Raspberry Pi Pico

• RP2040-zero

• All RP2040 based boards (requires USB connection)

Install

• Download the latest µLA firmware from the link below

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

• Hold down the BOOTSEL button while connecting the board to your computer

• Copy the previously downloaded firmware file to the RP2040

• Use PulseView or sigrok-cli for host computer 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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