Close
0%
0%

μLA: Micro Logic Analyzer for RP2040

SUMP/OLS compatible logic analyzer firmware for RP2040 boards

vitaly-domnikovVitaly Domnikov
Following
Liked Like project

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Public Chat
Similar projects worth following
2.6k views
4 comments
15 followers
View Gallery
Public Chat
Turn you Raspberry Pi Pico (or any RP2040 board) into simple logic analyzer in 5 minutes.

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

Features
- 16 channels
- 100 MHz sampling rate (250 MHz if you brave enough), 1 sample per system clock tick
- 200 KB sample memory
- Fast triggers using PIO
- Input channels mapped to GPIO 0-15

Supported hardware
- Raspberry Pi Pico
- RP2040-Zero
- All RP2040 based boards with USB connection

Installation instructions
- Download latest μLA firmware from https://github.com/dotcypress/ula/releases
- Hold the BOOTSEL button while connecting your board to the computer
- Copy firmware file downloaded earlier to the RPi-RP2 disk
- Connect to analyzer using PulseView or sigrok-cli
- Enjoy

ula_0.0.2.uf2

μLA firmware for RP2040

uf2 - 48.50 kB - 04/15/2023 at 07:03

Download

  • 1 × Raspberry Pi Pico

Enjoy this project?

Share

Discussions

Reiner Buehl wrote 12/07/2023 at 12:49 • point

Does this only work for 3.3V logic levels or is it also possible to connect the GPIO pins directly to 5V logic? I have seen different views on the 5V tolerance of the Pi Pico's GPIOs so I am unsure if level shifters might be needed.

  Are you sure? yes | no

Vitaly Domnikov wrote 05/12/2023 at 15:38 • point

Hey Fred!

Thank you for your feedback.

Edge triggers are supported by firmware, but OLS protocol, used in Sigrok doesn't have this feature. Probably I will do a small research and switch to another protocol later.

Channel can be mapped to any 16-bit range by changing PIN_BASE constant here https://github.com/dotcypress/ula/blob/main/src/main.rs#L31

I just did a build for you, you can download it here: https://github.com/dotcypress/ula/files/11465739/ula_0.0.3_gusman.uf2.zip

  Are you sure? yes | no

Fred wrote 05/12/2023 at 15:54 • point

Great, thank you very much!

  Are you sure? yes | no

Fred wrote 05/12/2023 at 07:19 • point

Nice work!

I have 2 questions/requests:

- I don't see edge triggering; is it normal?

- could it be possible to map channels to GPIO 2 to 17, instead of 0 to 15? This way, it could be possible to use gusmanb hardware without loosing the first 2 channels, as gusman hardware uses GPIO 0 and 1 for triggering purposes...

Thanks!

  Are you sure? yes | no

Similar Projects

Couple of months ago, I bought a "Raspberry Pi Pico" to get some hands-on experience of it and to create some amazing projects using it.
Project Owner Contributor

Getting Started With Raspberry Pi Pico

hulkHulk

An SWD debugger that carries a Pi Pico
Project Owner Contributor

Pico Debug Carrier

chen-liang-yuChen, Liang-Yu

What’s Orange Pi Zero？ It’s an open-source single-board computer. It can run Android 4.4, Ubuntu, Debian. It uses the AllWinner H2 SoC
Project Owner Contributor

Orange Pi Zero | First Look

bikash-narayan-pandaBikash Narayan Panda

This was a first for everyone: the Raspberry Pi's first microcontroller-class board, and the first to be based on the RP2040,
Project Owner Contributor

The RP2040 is Now Available for $1

undefined

Does this project spark your interest?

Become a member to follow this project and never miss any updates

Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2024 Hackaday

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "μLA: Micro Logic Analyzer for RP2040", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.