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什么都不说。先看图,有源码及PCB文件,哪位有兴趣做出来玩玩?
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Openbench Logic Sniffer is an open source logic analyzer. It’s designed to support the SUMP logic analyzer software at the lowest possible cost. Download the source and design files from the Gadget Factory project page.
This project started in the comments on a post. Initial circuit design, PCB layout, development, and testing continued in the forum under the code name Project SUMP PUMP. Many, many people contributed ideas and advice, the Gadget Factory and Dangerous Prototypes coordinated circuit development and routed the PCB. We borrowed heavily from the Gadget Factory’s Butterfly Platform.
The Open Logic Sniffer is a purpose-built logic analyzer board designed to be low cost but high speed. It sacrifices a lot of the features you’d look for in a full-scale development board to achieve our primary goals:
70MHz+ sample speeds
32 channels
16 buffered, 5volt tolerant channels
USB interface, USB powered
USB upgradable everything
Make it as DIY as possible
Make it as open source as possible
We didn’t quite hit our initial price range, but we got really close.
You can get your own assembled Open Logic Sniffer at Seeed Studio for $45, including worldwide shipping. Continue reading about the design and collaboration below.
Concept Overview
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原理图 (原文件名:原理图.png)
主要元件
Part Quantity Value Package
C1-C3 3 1.0uF 0805
C4,C27 2 10uF SMC_A
C5,C6 2 27pF 0805
C7-C26 20 0.1uF 0603
IC1 1 PIC18F24J50 SO-28W
IC2 1 AT45DB041D SO-08W
IC3 1 XC3S250E-VQ100 VQ100
IC4 1 M74LCX16245DTR2G TSSOP48
J1 1 MINIB-USB SMD
LEDs 4 LED 0805
Q1 1 20Mhz HC49UP
Q2 1 50MHz OSC1
R1 1 300R 0805
R2 1 1K8 0805
R3,R4 2 10K 0805
R5,R6 2 4K7 0805
R7-R9 3 1K1 0805
S1,S2 2 DTSM-6 tact switch DTSM-6
VR1 1 MIC5205-3v3 SOT23-5
VR2 1 MIC5205-2v5 SOT23-5
VR3 1 MIC5205-1v2 (MCP1801T-1202) SOT23-5
JP7,JP8 2 0.1″ pin header, rt angle 1X09
英文不好,没能力翻译成中文。各位看官直接上去官方网看英文版吧。。
官网介绍
http://dangerousprototypes.com/2010/02/25/prototype-open-logic-sniffer-logic-analyzer-2
介绍视频
http://www.gadgetfactory.net/gf/project/butterflylogic
PCB文件ourdev_547020.zip(文件大小:177K) (原文件名:SumpPump-v1rev1.zip)
PCB文件ourdev_547021.zip(文件大小:176K) (原文件名:Logic_Sniffer-v1rev1.zip) |
阿莫论坛20周年了!感谢大家的支持与爱护!!
曾经有一段真挚的爱情摆在我的面前,我没有珍惜,现在想起来,还好我没有珍惜……
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