Open Bench Logic Sniffer

From DP

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Read about the Open Logic Sniffer hardware here.

• Available now for $50, including worldwide shipping
• Now available in the Gadget Factory shop (US), SparkFun (US), Watterott electronic (DE), Epictinker (USA) Phenoptix (UK) Evola (Europe)
• A 5volt tolerant buffer is available for the 16channels of the 'wing' header ($15)

Open Bench Logic Sniffer is an open source logic analyzer. It's designed to support the SUMP logic analyzer software at the lowest possible cost. This project is a collaboration between the Gadget Factory and Dangerous Prototypes.

Contents 1 Introduction 1.1 Quick Start 1.2 Help 2 Downloads 3 Logic Analyzer Software 4 Updates 5 Hardware 5.1 Related 6 SUMP FPGA core 6.1 v3 Demon core in Verilog 6.2 v2 original SUMP VHDL core 7 PIC firmware 8 Links 8.1 Test plans 9 License

Introduction

Project Summary
Name:	Open Bench Logic Sniffer
Buy it:	Get one for $50 at Seeed Studio
Price:	$50
Status:	Mature
Manufacturing:	Shipping
Forum:	Open Bench Logic Sniffer Forum

Quick Start

• Logic Sniffer quick start guide Connecting, installing drivers and software (Windows, Linux, Mac)
• Logic Sniffer 101 Modes, pin numbering, LEDs, errors
• Logic Sniffer 102 Sample depths, triggers, RLE
• Logic Sniffer 103 More RLE
• Demonstrations and use examples
• Quick start video (Windows screencast)

Help

• Discussion and help forum
• Oak Micros SUMP handbook

Downloads

• Gadget Factory project page
• Complete update package
• Source code at github

Logic Analyzer Software

Logic analyzer client software controls the Logic Sniffer hardware and displays the pretty logic graph.

We recommend the multi-platform Java client actively developed by Jawi in the forum.

• OLS client homepage
• You'll need Java
• Support and bug reports
• Releases and requests
• Logic Sniffer 102 documents some features of the client
• Reset issues with Arduino

There are several other clients that support the SUMP protocol and work with the Logic Sniffer. They are in various stages of development.

Updates

• Download the latest update package at the Gadget Factory

This is a simple all-in-one solution that will guide you through the update process.

Latest versions:

• PIC firmware v3.0
• FPGA bitstream v3.07

The Logic Sniffer is a mature project, there are no known bugs in the firmware or bitstream.

For many, many alternate update utilities and tutorials, please see Various update applications for the Open Logic Sniffer.

In rare cases keyboards may stop working under Windows 7 after an update. This appears to be a Windows 7 problem. Here's a solution.

Hardware

• Hardware design overview
• Open Bench Logic Sniffer schematic and partlist
• Logic Sniffer hardware downloads
• 16bit buffer wing hardware downloads
• SUMP VHDL overview videos

Related

• User created cases
• All Logic Sniffer posts on the blog

SUMP FPGA core

v3 Demon core in Verilog

This is the v3 core now in use. There are no known bugs.

• SUMP logic analyzer Verilog Demon core documentation

v2 original SUMP VHDL core

• SUMP logic analyzer project
• SUMP Protocol
• The Logic Sniffer's extended SUMP protocol

PIC firmware

• Upgrade mode protocol
• Logic Sniffer firmware change history
• Logic Sniffer firmware overview

Links

• PIC18F24J50 datasheet
• PIC18F reference manual
• Spartan3E XC3S250E-VQ100 family reference

Test plans

• Buffer test plan

License

• PCB art: CC-BY-SA-NC
• Bootloader: GPL (From Diolan)
• Firmware source: GPL (excluding Microchip USB stack)
• Compiled firmware: CC-BY-SA-NC*

• The compiled firmware uses a USB PID licensed from Microchip for our use. It is limited to 10K units, and licensed only for our OLS hardware production, therefore we have to limit use of firmware compiled with these numbers to non-commercial use. You are free to compile the firmware from source without the PID and use it under the terms of the GPL.