How to write header in continuous acquisition

[MeganWhite]

Hey Guys,

I am writing continuous binary data to file and am not being able to write header information like timestamp, number of channels gain etc. I need to update the timestamp everysecond too. Any ideas?

Megan

[pmaj]

Hi Everyone

I suggest to save the whole cluster at once. The idea is attached below:

If that's not what you were looking for - sorry.

Ps. I'm not very good in English so please be lenient.

Best Regards

[proximableu]

I suggest to save the whole cluster at once. The idea is attached below:

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2460[/snapback]

In something like this I runed couple of times, there is a best solution in my opinion..

First of all, you create an object allredy, not just a data, that need to be formated. Second, the size of file wil bee relatively small, third- you able without many calculations edit, or delete, or ramdom read that cluster you want, based on object information. If you hold file opened all the time during read-write session, (this functions are pretty stable), this not eating too much resources, just flush file sometimes.. I am using GOOP, so this way are best for me

I am sure, there is some more solutions, too. BRW, if you first store you data in FILO, by using Queue or functional global, so the one second interval will be more exact, if reading-writing process will be resource thirsty..

Good Luck!

/ProximaBleu

[MeganWhite]

Hey guys,

I am able to write a header into the binary file now but I cannot read it in order to write it into a text file. I am using the vi Read File. What byte stream type sould I specify if the data file contains ascii header and binary data? I am attaching a snapshot of the vi I am using but it gives an error unflattened or truncated data. I tried setting the pos offset to start reading after a few bytes but it doesn't help. Any sujjestions?

Megan