I want to receive HEX data by VISA. What am I supposed to do??

<Pic. 1>
<Pic.1> is HEX Data received by CodeVisionAVR.
Actually, The Data is from AHRS. ( I'm making some kind of Ground Control System, so I need Euler angle data.)
But, in LabView
ASCII DATA is received in LabView.
I've been trying to find a way to solve this, but I couldn't.
Is there any way to receive the HEX Data right after the VISA is connected??
help!!

Thank u .Me too Searching for the same.

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Attachments:
i2c_problem.JPG ‏46 KB

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PatanGova wrote:
When first 2bytes are skipped and remaining 18 bytes are divided such that consecuitve 3 bytes are rearranged then it is considering 030D0102(which is rearranged as in spreadsheet2 of the attached image) which should not be.
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PatanGova wrote:
But I want to 1)skip the first two bytes(0x01 0x02) and last two bytes(0x03 0x0D).
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PatanGova wrote:
3) arranged 3bytes value should be converted into 2's complement and want to plot the data (2's complement of arranged 3bytes) continuously such that there will 6 continous plots.(each consisting 2's complement of the rearranged 3bytes)
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I would recommend making the data type of the notifier a cluster that contains a path and a numeric (double). The path tells the player which file to play. The numeric is the duration.
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Hello! I am a Labview Novice and having a problem about reading hex data.
Basically I am having bytes from the serial port like this: "80100E0E0AB4F646F24A00911267087E032080057FFF "
It is not encoded in ASCII. What I want to do is to convert the hex to an ASCII hex string.
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I think the following might be a solution, but I have no idea what the subvi is in the solution.
http://forums.ni.com/t5/LabVIEW/Hex-String-to-Ascii-Hex-String/m-p/886078/highlight/true#M400462
Thanks in advance and I appreciate your kind help!
Solved!
Go to Solution.

coolmatthew wrote:
What I want to do is actually this.
You are using way too much code for all this. All you need is a concatenate strings, replacing your entire loop and such. Same result.
(see also)
LabVIEW Champion . Do more with less code and in less time .
Attachments:
HEXTwiddler.png ‏4 KB

RS232 De-multiplexing data using Visa Read

Hello
I'm trying to do a simple task, but being new to this I'm having problems.
I transmit data down a RS232 line at 9600 baud. I have two channel of data say x and y where A and B are one byte each.
I multiplex/alternate them down the line i.e ABABABABABAB.....etc
At the labview end I want to seperate the data back to seperate channels for plotting on a graph. i.e A with time and B with time.
There must be a way of toggling some array builder conected to the visa Read VI ie odd for A and even for B and then plotting them in two seperate wave charts.
Iv'e got a single channel working but A and B are mixed together. (see attachment).
Any ideas if it can be done.
Thanks Bill
Attachments:
RS232-single.gif ‏15 KB

RatHunter wrote:
> Hello
>  
> I'm trying to do a simple task, but being new to this I'm having problems.
>  
> I transmit data down a RS232 line at 9600 baud. I have two channel of data say x and y where A and B are one byte each.
> I multiplex/alternate them down the line i.e ABABABABABAB.....etc
>  
> At the labview end I want to seperate the data back to seperate channels for plotting on a graph. i.e A with time and B with time.
>  
> There must be a way of toggling some array builder conected to the visa Read VI ie odd for A and even for B and then plotting them in two seperate wave charts.
>  
> Iv'e got a single channel working but A and B are mixed together. (see attachment).
>  
> Any ideas if it can be done.
>  
> Thanks Bill
>
Hi Bill
I think you were 90% of the way there.
If all you want to do is see the two waveforms on diffierent plots you
can right click on your chart and select stacked plots. I think you
have to increase the size of your ledgend to show two plots.
If you want the data on two different charts, index your array to two
different charts. I'm assuming by your picture that you are reading 2
bytes at a time.
Using two graphs could be useful if your plots had different time
scales. But i think the stacked plots makes more sense.
Good Luck
Eric

How to receive the datas?

Look:
the first I create socket sk:
sk=socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
and I fill data into Ip Head and Icmp Head,
then I sendto the packet,but I don't receive
any datas:
lenrecv=recvfrom(sk,buf,100,0,(struct sockaddr*)&addr,&rlen);
my codes run at the function recvfrom,but it
couldn't return variable lenrecv,and it look like down,
I want to know why?how to receive the data?
(I couldn't creat socket like this:
sk=socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
I want to know when I creat socket like this
sk=socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
How to receive datas?)

Last edited by joseperezc (2012-08-14 18:58:22)

I want to receive HEX data by VISA. What am I supposed to do??

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