paologunny

I've finally been able to get everything working smooth! It turned that the s-function was correctly written but had a problem with the data types, it was using some kind of integer instead of the DWORD type. Bigskyfunk, thanx to your code sample i could debug it. I am really really grateful for your help. Cheers Paolo PS: curiously enough, it works well only in pause mode, while it's jittering as hell in slew mode...

Thanx really much. As i said i'm just a beginner.... Paolo

I think we have the same problem then. The s-function i mentioned is part of a blockset which was produced by Unmanned Dynamycs. the site is http://www.u-dynamics.com It's called the aerosim blockset, it's free for non-commercial users. there's also the source code for the s-function used to interface to fs. i wasn't able to find fs-interrogator. i'm still having the same problem and i am sure there's no mistake b4 the s-function so it must be it. but... i'm not a programmer so i can't see if there's a problem in the source code. i'm also using widefs but that's ok, i tried to run both on the same machine but had the same problem. bigskyfunk, u want to talk about this on msn? cheers

hi bigskyfunk i read the posts on the forum and i think i got more or less the same problem. did you notice a sudden change in the altitude displayed by fs in slew mode? my problem is that altitude drops suddenly by (roughly) 3 feet when ascending or goes up by 3 feet when descending. what format are you using for the altitude variable? double precision? or single? my model is developed with simulink and i'm using a third-party s-function to pass the data to fs, i got it up and running but there's still this problem. thanx for any suggestions Paolo