GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub?
Sign in to your account. I am not sure if PulseView supports it. That's a question for PulseView maintainers. I guess something can be tested right away.
I haven't tested this with sigrok. Anyone else? I moved in and haven't had time to get my boards out of the boxes. I'll see if I can test with sigrok with some hardware, maybe this weekend. Isn't RLE required, as the limitation for continuous sampling for a reasonable sampling speed would be the communication channel? I haven't tried it yet, and I am currently instead using the opportunity to use a Forth system AmForth was chosen the Arduino for a real project: a logic analyser that uses RLE for the transfer of information to the host system, sampling as fast as possible the 4 MHz and sampling at a lower rate but still as fast as possible during the RLE processing and producing output.Overleaf resume
On the host side, after data collection of arbitrary length, the data will be converted directly into Sigrok. This allows the device to introduce itself and present the sigrok software with some basic info like number of channels and maximum samplerate, so GUI does not offer impossible samplerates to user.
This means signal goes from right to left. Ending at 0ms timestamp, starting at positive timestamp corresponding to buffer length. Can anyone explain what causes this to me? Also device maximum sample rate is not properly detected.Mobility scooter repair near me
Not sure what causes this. I've also bumped into this problem recently, and managed to fix it on the firmware side! The question that which side shall be fixed, OLS firmware or Sigrok software is valid. It turned out that sw 1 expects the data in the order the Arduino sends. See attached screenshots on both software displaying the same UART traffic: the pattern is the opposite on them.
Note: this is already the reversed order, my patched Arduino firmware sends. I've not checked the SUMP description, yet.Here is a list of currently supported devices various stages of completeness in the latest git version of libsigrok fewer devices might be supported in tarball releases and devices we plan to support in the future.
The lists are sorted by category supported :in progress : 9planned :and alphabetically within those categories. BeagleLogic 12 max 14 ch, MHz. Dangerous Prototypes Buspirate 5ch, 1MHz. Hantek L 32ch, MHz. Hantek BL 8ch, 24MHz. Kingst LA 16ch, MHz. Logic Shrimp 4ch, 20MHz. Meilhaus LogianL 16ch, MHz.
Getting started with a logic analyzer
Openbench Logic Sniffer 32ch, MHz. Robomotic BugLogic 3 8ch, 24MHz. Robomotic MiniLogic 8ch, 24MHz. Saleae Logic 8ch, 24MHz. Arduino 6ch, 4MHz. HSA Logic 8ch, 6. MiniLA 32ch, MHz. Noname LA16 16ch, MHz. RockyLogic Ant8 8ch, MHz. RockyLogic Ant18e 8ch, 1GHz.
LeCroy oscilloscope series various. Agilent MSOA 16ch,? Hantek C 8ch. QuantAsylum QA 12ch; 2ch analog. Fluke ScopeMeter B 2ch, 2. Nexus-Computing OsciPrime 2ch,? Owon SDS series 2ch, 0. MHz BW. Agilent A 6. Brymen BM counts, RS HP A 7. HP A 5. Metex MM counts, RS Metex ME counts, RS Norma DM counts, RS PeakTech counts, RSI would like to see on this Open Source world is some kind of common format logic analyzer data presentation and maybe common API for accessing the information.
In this way it would be easy to write all kinds of applications that decode data and hardware that captures the data independently. I would want something like what Wireshark did for network traffic analyzing — open source and easily expandable software. Not I think I have found one software that seems to match those needs, and it is called sigrok. When sigrok project started, the developers focused on logic analyzers because those devices used to be expensive.
Nowadays sigrok is a software suite for extracting data collected by various types of analyzers and displaying them or analyzing them using protocol decoder plugins. This suite consists of several sub-projects :. I write in this article mostly about PulseView and sigrok-cli. I decided to test sigrog on Windows.
Sigrok provides nightly Windows installers for sigrok-cli and PulseView. PulseView can record signals from suitable device and display then nicely on the screen. For initial testing I used first the Demo device, that generates semi-random signal you can look at without need for any hardware.
I did the first tests with this Demo signal. To be able to record real world signals, I need some supported hardware that can capture signals. Luckily I had several hardware that should be suitable. It seems that it would need some more work with the drivers. Maybe some later time. PulseView has a quite good list of supported protocol decoders PDs as the libsigrokdecode library ships with a collection of various protocol decoders out of the box.
Signal analysis using Sigrok blog posting tells how to install Sigrok on Ubuntu and and capture signals with command-line utilities.
Rocking with sigrok article gives introduction to using sigrok commant line tools in Linux. Logic analyzer: visualizing latency between two digital signals in real time with sigrok and matplotlib tells how to manipulate data extracted fromlogic analyzer with Python, to view the latency between two digital signals.
High-Level Automated Hardware Debugging article shows how to use logic analyzers based on the FX2 chip with sigrok to debug hardware. Sigrok: Using Logic to Debug Logic presentation slide set from Linux Foundation event gives introduction to usign sigrok.
The fx2lafw firmware is meant to work on any FX2-based hardware, including logic analyzers, FX2 eval boards, or other hardware which has this chip on-board. Hobby Components low cost 8 channel logic analyser was first dedicated hardware for sigrok. Arduino logic analyser article tells how you can turn Arduino Uno R3 board to open logic sniffer compatible device that should be supported with sigrok. BeagleLogic Turns your BeagleBoard into a channel Msps Logic Analyzer page tells that with the sigrok project, BeagleLogic gets support for software triggering and decoding a large variety of digital communication protocols.
At the center of the video is the open-source sigrok logic capture and analyzer. Not only can sigrok decode raw voltages into bits, but it can interpret the bits as well using protocol decoder plugins written in Python. What this all means is that someday, it will decode everything. For free.Pages:  2. I want to use arduino to simulate an I2C device with another microcontroller.
Currently, the other microcontroller is sending a write-read command to an i2c device request an address.
This is tested working with an i2c sensor. Now I want to emulate the sensor using arduino. Below is the code I have so far, built from looking at examples from searching around google.
However, the other microcontroller doesn't seem to be recognizing the arduino. Any thoughts on what the issue may be? Thanks Code: [Select]. A sensor has I2C implemented in hardware. An Arduino uses hardware and software. The software is the Wire library and for example the receiveEvent function. To get more time to run the software, the Arduino stretches the SCL clock.
That means the Master has to support clock stretching or else it is impossible. You might start by studying the Wire library and buy a logic analyzer. In your sketch you use Wire.
In the receiveEvent function you do not read the received data, but you try to send data. I think you need the Wire. Would the clock issue cause the arduino device not to acknowledge at all? Trying to get a sense of where this fails in the message chain. You have to show the sketch. The 0x68 that the Arduino Wire library uses is the 7-bit shifted I2C address.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Have you considered trying to add Sigrok compatibility to your Arduino scope? I think you could go one of two ways. Either add support for a new instrument to Sigrok, or make your Arduino behave like an existing device on the serial interface. Skip to content. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.
Sign up. New issue. Jump to bottom. Copy link Quote reply. Hi, Have you considered trying to add Sigrok compatibility to your Arduino scope? Hi Peter, Yes I came across sigrok when I was looking at the possibility of doing a logic analyser with the same hardware. I have downloaded it onto my Mac and I will try it out soon with my scope once this month's project has been submitted.
However, the thing I don't know how to do is what software I would need to add to the Arduino to make it look like an instrument, but I haven't looked into it yet.
I might end up using a faster Arduino I don't know yet. Anyway thanks for the interest and suggestions. Cheers Mike. Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment. Linked pull requests. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.After installing sigrok you can immediately start using sigrok through different frontends.
Currently, those are PulseViewsigrok-cli and sigrok-meter. The sigrok suite needs some kind of hardware to interface to the signals you want to examine. While multimeters are certainly supported, we found that most people are currently using logic analyzers based on the Cypress FX2 microcontroller. With fx2lafwsigrok's open source runtime firmware, any device containing an FX2 can become a powerful streaming logic analyzer.
These can easily be found by searching for 24MHz Logic Analyzer.Salt import companies
In addition, a good set of quality probe hooks is recommended. The sigrok-dumps repository contains a pre-made capture of DS signalling.
We can see the captured signal, which features a conversation between a microcontroller and the DS, where the microcontroller repeatedly sets and queries the time of day:. Now we have the captured signal we can make use of sigrok's support for signal decoding.
It allows signal decoding through the use of Python-language Protocol Decoder scripts. This makes it very quick and easy to build powerful decoders for all forms of digital signalling.
We hope to be able to build a vibrant decoder library that will contain a large selection of supported chips and protocols. Normally we would need to associate the logic probes with the logic analyzer inputs, but in this case, because the probes are already labelled SCL and SDA, PulseView can do this automatically. This is already very useful, and a massive improvement over counting out pulses on an oscilloscope screen. However, sigrok allows us to go one step further with the use of so-called stacked decoders.
Signal analysis via the command line is a powerful method of working, particularly when used with UNIX pipes. Downstream programs and scripts can be used to search, filter, condition or format the data in whatever way is desired.Cheap logic analyzer + Sigrok pulseview = timesaver (LHT00SU1)
This blog post demonstrates how to extract a. In the case of our DS example, we can also load the file with sigrok-cli. The data is displayed as bits by default:. Additionally, it is possible to run analyzers with a live capture such as in this example utilizing the fx2lafw driver and monitoring one side of a SPI transaction:.
When combined with tools such as grep, egrep, sed, perl, python, and many others, all kinds of powerful analysis becomes possible. This picture shows data from a UART where the signal is inverted and returns to zero after a short pulse instead of staying at the level for the entire duration of a symbol:.
MyOpenLab is a platform that makes it easy to design virtual interfaces your electronic builds. If you want controls and readouts for Arduino, Raspberry Pi, Android, or anything with a serial port, this is worth a try. MyOpenLab reminds me of LabView.
Not so much modern LabView with all of its add-ons and extras, but LabView back when it did just a few things but did them really well.
The open source MyOpenLab project has been around for a while. The website and documentation are not in English, which may have kept some people from giving it a try, but the software itself is available in German, English, and Spanish.
As an example of what you can do, image you want to build a custom bench tool. In myOpenLab your device will consist of two parts: a diagram and a front panel.
Some things only live on the diagram, like a timer or a connection to an Arduino.
sigrok logic analyzer software
But some things live on both like switches, LEDs, graphs, and so on. You can connect all the little boxes together to build up applications.
Modern operating systems insulate us — as programmers, especially — from so much work. Depending on how far back you go, programmers had to manage their own fonts, their own allocation space on mass storage, or even their own memory allotments.
Every year, though, it seems like things get easier and easier. So why is it so annoying to open a simple serial port? And it is even worse if you want portability. What I wound up with the serial library from Sigrok. You know Sigrok? The logic analyzer software.Rafael pombo poemas
You might counter that the serial port is old hat, so no one wants to support it with modern systems.
I guess the Sigrok developers had the same problem I did and they took the time to write a nice API and port it to major platforms. Although Sigrok uses it, they maintain it as a separate project and it was just what I needed. Sort of. I say sort of because the version installed with Ubuntu was old and I needed some features on the newest release, but — as usual — the Internet came to the rescue.
A quick Git command, and four lines of build instructions and we were ready to go. If you think of a medical x-ray, it is likely that you are imagining a photographic plate as its imaging device. As with the rest of photography, the science of x-ray imaging has benefited from digital technology, and it is now well established that your hospital x-ray is likely to be captured by an electronic imaging device.
Indeed these have now been in use for so long that their first generation can even be bought by an experimenter for an affordable sum, and that is what the ever-resourceful [Niklas Fauth] with the assistance of [Jan Henrik], has done.
The write-up is a fascinating journey into the mechanics of an x-ray sensor, with the explanation of how earlier devices such as this one are in fact linear CCD sensors which track across the exposed area behind a scintillator layer in a similar fashion to the optical sensor in a flatbed scanner.
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