wavedrom / vcdrom Goto Github PK

Maybe in the gutter
https://codemirror.net/examples/gutter/

• https://github.com/zoltantothcom/vanilla-js-tooltip

Allow more easily navigating traces. If a particular signal has focus, filter by changes to that signal.

Zoom level should be retained.
Screen position of that next/prev signal change would preferably match the current (or first on-screen signal change's location).

hi that is great to view vcd file insider vscode seamless

Load streaming JSON messages:

https://en.wikipedia.org/wiki/JSON_streaming

Standard fields:

• t -- time stamp (in time units compatible with VCD) optional field. If omitted, t is current time stamp
• n -- signal name

Immediate events

...
{"t":2334534, "n":"MY_WRITE", ...}
...

Sequence (transaction)

...
{"t0":345345, "t1":34564556, "n":"SEQ_NAME", "n1":"END_BAR", "n0":"BEGIN_FOO", ....}
...

• install from npm
• cli interface?

{clock,valid,ready,up:10} will disappear when close to bottom of the screen

here is sample from https://vc.drom.io/?github=Mohammad-Heydariii/Digital-Systems-Lab-Course/main/Lab_project4/modelsim_files/clkdiv2n_tb.vcd

the result is like that

Array signal r_nxt is not displayed correctly，there are three signal r_nxt[2],r_nxt[1],r_nxt[0] in clkdiv2n_tb.vcd file, but in the wave form only one r_nxt wave, It seems that the array signal is not recognized

I run a server (interactive-ebooks.com) where I allow students to build and run in-browser Verilog coding exercises. I'm using iverilog to run the code. Given that it's easy to produce a VCD file on my server, what's the appropriate way to send back the VCD data as a string that vcdrom can load? Hopefully, something along the lines of VCDrom(div_id for the resulting viewer, string contents of a VCD file)?

Thanks for the awesome tool!

Add a proper UI component for opening local VCD file.

Original thread: https://twitter.com/lucasteske/status/1432746780534480905

Is it possible to use this library on a website or in Electron? What would be a good example of what components I would need to use? Also, just want to mention, I love the way this looks!

Show filename in the render to distinguish between multiple windows

Any thoughts about how to include higher level markers and annotations? I'm interested in processing VCD files to produce higher level annotations like I2C and SPI transactions. (Something along the lines of sigrok or gtkwave filters but using vcdrom) Ideally they'd be output by python vcd analyzer plugins. Thanks!

Some other key combinations (Alt/Shift/Ctrl+digit) may not be working as well (but I did not check). Simply keystrokes on numeric part of keyboard have different codes.

Via mouse input, dragging on a portion of the signal should allow measurements.
e.g., initially, show the time delta between the two spots.

Long-term, plan to allow other calculations (e.g., min/max, duty, etc.), as they become of interest.

Hi, this is a great project and I am playing with your online demo on Windows 10 and Microsoft Edge. But it seems that sometimes the viewer could not render the waves properly. Here is the vcd file: https://drive.google.com/file/d/1UUYgRJgM4vXmH1fEgcTKcgG2DvKSvjrW/view?usp=sharing

This vcd file seems fine in GTKWave:

The clock seems incorrect in vcdrom:

AR channel is good
R channel is always ready (broken)

Normal-->Mac

Alt0 --> Alt+º
Alt- --> Alt+–
Alt+ --> Alt+≠
Alt, --> Alt+≤
Alt. --> Alt+≥
Alt] --> Alt+‘
Alt[ --> Alt+"
Alt/ --> Alt+÷

WaveQL editor needs to be Read-only by default.
Ctrl+E or Ctrl+Click to activate editor.
Deactivate on Defocus

Similar to:

https://d3js.org/d3-shape/curve#curveStepAfter

Make sure:

• Signed, Unsigned support
• width != 2^n support
• optional label

Application must work offline.

• https://www.w3.org/TR/offline-webapps
• https://developers.google.com/codelabs/pwa-training/pwa03--going-offline

PWA allows local file access via File System API

Use cases

• WaveQL for editing
• VCD/LST for streaming load?

References

• MDN : https://developer.mozilla.org/en-US/docs/Web/API/File_System_API
• Chrome Dev Blog : https://developer.chrome.com/docs/capabilities/web-apis/file-system-access
• browser compatibility : https://caniuse.com/native-filesystem-api
• https://fs.spec.whatwg.org/
• web.dev : https://web.dev/learn/pwa/os-integration#working_with_the_file_system
• blog : https://www.thinktecture.com/en/pwa/making-of-paint-js-file-access/
• https://progressier.com/pwa-capabilities/file-system-desktop

I want to run this project in my local server, but I don't know how to achieve it after '''npm install'''.
Can you give some help, please?
Thanks a lot!

Add some User documentation about VCDrom

Review PWA fatures that might be useful for VCDrom

• offline mode [#1]
• File System Access [#44]
• Installable
• ???

References

• https://web.dev/articles/what-are-pwas

I wanna use vcdrom with FST, is there any plan to it?

Should be:
4 us ... 6 us ... 8 us ... 10 us