A logic analyzer is an electronic instrument which visualizes a set of digital signal across time. It can only display logic levels and their transitions, not analog levels.
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How to use USBee AX logic analyzer under Linux?
I've got clone of USBee AX logic analyzer, to play with one and see if I need a device of such type at all. Unfortunately, I haven't found any Linux software that supports one. I have tried Sigrok, ...
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132 views
Using Pickit3 as a logic analyzer
I need to sniff some legacy SPI hardware and at hand have a Pickit3 and lots of PIC18F2550/4550.
While there is no project out there that builds a logic analyzer out of a PIC18F2550/4550 (I will be ...
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325 views
AVR interrupt service routine not executing as fast as expected (instruction overhead?)
I'm developing a small logic analyzer with 7 inputs. My target device is an ATmega168 with a 20MHz clock rate. To detect logic changes I use pin change interrupts. ...
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2answers
146 views
RS 232 serial sniffing
We have a task in hand to sniff a RS232 protocol in a certain industrial automation setting(we have been asked to do this legally by the manufacturing company itself). We are planning to send a ...
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1answer
131 views
Open bench logic sniffer Not working
I am using my openbench logic analyser for the first time in a real project. I am not getting valid captures though.
I have the latest client off dangerous prototypes website they recommend for mac. ...
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233 views
Scanalogic DIY Logic Analyzer, Extending Sample Time
I just completed my build of the Scanalogic DIY logic analyzer. It's working great, but I am noticing something odd about it. This question will likely only make sense to someone who has used or built ...
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142 views
Logic Analyzer Basics
I am buying a second hand logic analyzer (Agilent 1661A) and I see the terminology such as the following:
100MHz State Speed
Maximum Conventional Timing Rate: 250 MHz full channel, 500 MHz half ...
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115 views
Buspirate Logic Analyzer Mode Issue
I am new to the logic analyzer mode of Bus Pirate, so to play with it i connected channel 3(MOSI) line to the output of an TSOP1708 IR decoder to see if the capture came through.
However when I ...
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Logic Analyzer / Oscilloscope Suggestions [duplicate]
Possible Duplicate:
Beginner's logic analyzer?
I am a beginner in electronics. Been tinkering with micro controllers for about 2-3 months now. At this point I find the need for a logic ...
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85 views
Sampling 133MHz bus with OWLS Logic Analyser
The OWLS specs state that it can operate in two sampling modes:
200Msps captures up to 100MHz waveforms on 16 channels
100Msps captures up to 50MHz waveforms on 32 channels
Does this mean that ...
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382 views
Which tools do you use to analyze waveform data from simulation or logic analyzer traces?
I need to save Xilinx ChipScope waveforms for later review/analysis with my co-workers.
Wikipedia provided a handy list of waveform tools but I am looking for user feedback on some of the strengths ...
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180 views
How to hook up an FPGA to a component that has a different power supply?
I recently programmed my FPGA with a logic analyzer core for the purpose of reverse engineering a crappy modem I have. I found on it what I think is either JTAG or TTL-serial pads. There are 4 blank ...
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What is going on with these SPI transmissions?
I just got a Saleae logic analyzer and I'm using it to hack a Guitar Hero drum set. The main board within the drum set talks to another sub-board using SPI. When I tap into the conversation, I see ...
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306 views
Why buy protocol analyzer modules for an oscilloscope?
Scopes with logic analyzer inputs often have optional add-on modules that let them decode various serial protocols: SPI, RS-232, I²C, CAN, etc. Tek and Agilent want around
US $700 per protocol family ...
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1answer
198 views
GND/Vss of 2 circuits with independent power supplies, and usage of scope/logic-analyzer
Probably an elementary electronics question.
If I would like to trace waveforms from 2 different circuits with independent power supplies, s.a. an RF transmitter which uses a 9V battery and the RF ...
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192 views
Noisy data line clears up on wiring up multiple output pins of uC to Logic Analyzer
Some people reading my question might be familiar with a string of questions (latest being this one) where I have been asking about how to decode data from an ISM-band ASK/OOK type RF receiver module. ...
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224 views
how to talk with this device or how to know about its logic analysis on serial bus [closed]
We want have communication between AVR/ARM Micro controller and Corus PTZ Gas volume converter.
This device has an RS232 port for local communication with a laptop through an intrinsic safe ...
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Using Logic-Analyzer to reverse-engineer ISM-band ASK/OOK encoding, possible?
Is it possible to use a Logic Analyzer (such as this one), to determine the waveform s.t. on the DATA out pin of an ISM-band ASK/OOK (315/433.92MHz) RF module, in turn to decode it's encoding scheme. ...
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Protocol Analyzer in software?
I'm looking for an easy solution to identify data formats, protocols. I have an outdoor temperature - humidity sensor which is connected to my HVAC system. I want to decode the data coming back from ...
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Recommendation for a USB digital simulator
It's becoming quite frequent to me having a new digital subsystem which I want to test in isolation before trying to make a prototype circuit. I've been using the digital analyzer by Saleae for ...
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Is a single channel oscilloscope enough for most purposes?
So I have spent the past two days going through various budget oscilloscopes and checking their specs VS price. Most of the information I have gathered has been from here and I am almost sold on an ...
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Logic Analyser for Mac environment
I am wondering if anyone can recommend a logic analyser for a Apple Mac environment with similar features as the SCANALOGIC 2 PRO around the same price would be great as well.
or some thing that is ...
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Openbench Logic Sniffer setup
I finally broke down and bought this board:
http://hackaday.com/2010/02/28/open-source-logic-analyzer-2/
It "seems" like it would be really helpful, the problem I'm having is getting it setup, I am ...
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8answers
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Best tools to debug simple digital circuits?
I am a professional software developer who is used to the luxuries of integrated debuggers. For a while now, I have been experimenting with the Arduino platform. However, I find that attempting to ...
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381 views
Passive listening to USB communication
Is it possible to passively listen on low speed USB communication?
Suppose I connect a logic analyzer to D+ or D- line, will I see a valid data?
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How to reverse engineer I2C and SPI protocols?
If I have an unkown device which talk I2C or SPI how can I reverse engineer the protocol. Basically I am looking for something similar as snoop or tcpdump.
For software Mac is preferred but can also ...
