Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
I have two questions - any help would be appreciated :)
1) how do I write a skill-procedure, which is executed every 10 seconds? (without blocking other processes)
2) how do I "wait" in an active skill (procedure/code) and execute all other procedures (started before) e.g.: The user pushed a button on my skill-app and some code is executed (e.g. running 1h). BUT the "mother" icfb must not be blocked permanently. (background process)
background: I use multible small apps/guis (hiCreateAppForm) in parallel. One of them is intended to monitor sim-progress.all is running fine. but i want to "automize" the "scan"-button to be executed periodically without blocking other apps permanently.
solution for 1) in windows/delphi would be the "ontimer"-event of an timer-objectsolution for 2) in windows/delphi would be to call "Application.ProcessMessages" regularly.
thanx in advance,
ps virtuoso env. 18.104.22.1680.6.133
One thing to bear in mind is that SKILL is not multi-threaded. So there are some limits as to what you can do in this regard.
There is the ability to take advantage of the top level event loop to schedule things which are "sort of" in the background. See this Cadence Online Support Solution 11381132. This encapsulates the hiRegTimer() function in a package which makes it easy to schedule small background tasks. Please take note of the comments in the code about ensuring that jobs are kept short.
For bigger tasks which are likely to block (such as your 1 hour long job), the best solution is usually to use ipcBeginProcess to launch a background process (maybe an "icfb -nograph -restore script.il" session) - that way it is being executed in an entirely different process.
The "timer" function is hiRegTimer() and it accepts two arguments, the first is a string of the SKILL command that you wish to execute, and the second is the timer delay in tenths of seconds.
You could use a semaphore or global flag to indicate the status, and use a repeating timer function to check the status and reschedule the next timer event, or not if everything is done. Make sure that there is a way to override or kill such a repeating timer event too, and make sure that it is not possible to run two or more at the same time.
Hope this is what you were looking for?
In reply to skillUser:
Thanks Lawrence & Andrew!
My scripts are running now smoothly "as intended" :)Using a separate icfb via ipcBeginProcess would cause too much overhead for my approach, I guess. (massive delay, data transfer betw. apps/scripts).hiRegTimer is perfect/easy in my case.