Forum Post: Sigrity System SI Parallel Bus Analysis Results
I ran an analysis on my DDR3 section and was quite pleased with the eye diagram, being it was my first attempt. I then copied my design and changed all of the routing, took out all of my serpentines...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Hi Andrew, Yes That's what I wanted. Thanks! Also, below is copied sequentially from CIW window : nth(0 a) (1.8115 1.013) nth(0 b) (1.8115 1.013) nth(0 a)==nth(0 b) nil Why the last 1 is getting...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
This almost certainly depends on where a and b came from. You've probably got some small floating point rounding error in a computation somewhere. If the numbers both came out of the database, they...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Hi Andrew, a and b both are list of coordinates formed from either bBoxes or beginPt and endPt. xCoord(xy1)-xCoord(xy2) gives me 0.0 yCoord(xy1)-yCoord(xy2) gives me 0.0 Leo
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
So xCoord(xy1)==xCoord(xy2) and yCoord(xy1)==yCoord(xy2) should both be t, and hence I would expect xy1==xy2 to be t as well. Is that what you see? Andrew
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Yes. They are true, but the lists which I am working with, are made up of several floating point numbers(upto 4 decimal places), even though I see their car(a) is same as car(b), but when I compare...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
If they genuinely all came from beginPt and endPt, then they should be identical, because the database itself is really integer - and gets consistently converted to floating point by dividing by the...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
In addition to what Andrew said and shared, there is a function "nearlyEqual()" in the newer versions of Virtuoso that makes it easier to compare floating point numbers (with a tolerance):...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Hi Andrew, In some place when I am subtracting the two car, the result is 2.220446e-16. So can I use this approximation : (y1-y2)<0.0001 approximation if I have 2000DBUperUU? I think the difference...
View ArticleForum Post: Design Timer
I could have sworn that I have seen a screen in Allegro that shows how many hours a particular design has been worked on. I cant seem to find the right screen. Any help would be appreciated. Thanks...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Thanks @skillUser yes I saw this function when I was looking at equal function. I think I have to use this function now since I am dealing with floating points upto 4 decimal places, have to introduce...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
[quote userid="385185" url="~/cadence_technology_forums/f/custom-ic-skill/48910/get-the-points-selected-by-mouse-of-the-stretch-for-pathseg/1377236#1377236"] So can I use this approximation :...
View ArticleForum Post: RE: Get the points selected by mouse of the stretch for pathSeg
Many thanks Andrew Beckett and skillUser this solved my problem. :-)
View ArticleForum Post: Problem with autovia script when zooming out too much
Hi, I have a autoiva script given to me by cadence support some 3 years back and it is given below : procedure(CCSmyCreateAutoVia(cvId point)...
View ArticleForum Post: How To Disable Or Delete Firewall Rule
You can disable or delete firewall rules within your Windows Firewall as well by following these steps. Step 1: Open your Control Panel by searching for it in your Windows Search bar. Step 2 : Select...
View ArticleForum Post: RE: Allegro - Check for symbols with changed definition
OrCAD EDM has this capability. It uses something called EDM Validation to compare symbols (footprints/padstacks/step models) on a board to the ones in a promoted library in EDM. It will list a csv...
View ArticleForum Post: PCB panelization in orcad pcb designer standard 17.4
how to create PCB panelization in orcad pcb designer standard 17.4
View ArticleForum Post: RE: Library charecterization without post-layout netlists
This worked. Thank you so much!
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