Products > Test Equipment
FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
soundtec:
you need a sample 8192 long for it to work ,I think there was a problem with other numbers .
precaud:
OK, so it doesn't want X,Y pairs, only the data points.
I can open the file, it reads in 8192 points. But when I click "Load Data" it gives an overflow error and bombs.
This software is buggy as hell. What a waste of time.
cybermaus:
I've uploaded several (to the FY6600), never a problem.
I also manually edited one, they are not CSV, they are normal TXT files!
Did you try making one with the tool?
The tool can produce a *.FYC file, which is a "descriptive form" or "a definition" of a wave form. Like "add 1 sine of amplitude 1 to 1 triangle of amplitude 1 and double frequency"
This *.FYC file is next used to calculate the actual points in the waveform numerically, which is in the *.FY file. The latter is just a list of 8192 floating point values between -1 and 1
I attached 1 set as example (4 Sine waveforms added together)
When I manually changed those points, it worked for me, but I admit, I always started with a FY file that was first generated, and then modded it using notepad++. I guess it may matter if you terminate with CR or CR+LF or LF+CR, and using another tool like normal notepad or XLS may mess up those line terminations. Especially if you think its a real CSV and you are using Excel. It's not, it's a flat txt. Just just notepad++
Edit: I checked: all values are suffixed by x20 x20 x0d x0a
meaning <space> <space> <cr> <lf>
The last line is padded with an extra empty line x0d x0a
When I run it through for example XLS, it indeed drops those extra 2 spaces, so that could be the reason
Just use a more flat editor, like notepad++
bugi:
And if everything else fails, look at the file with a hex editor. Sometimes weird things creep in to files with some software, like unnecessary (invisible) BOM characters in the begin, or accidental "phantom spaces" (characters that are rendered as space, but are not considered whitespace by most parsers), etc.
soundtec:
Maybe a more general search of the board is nessesary . Ive done a bit of fooling around with the various big name waveform generation software available ,easywave ultrawave etc . Which is the best of the lot and will make usable waveforms for the FY66,6800 is there any of these packages offer a library or pre-made waveforms that can be uploaded to the feeltech?
Is it possible to modify the name of this post to include the FY6800 version ,so that when someone browser searches Fy6800 this topic shows ?
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