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 Can we use Origin-C for data acquisition		  New Topic  Reply to Topic
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rnnelson

USA
3 Posts
Posted - 04/05/2002 :  09:28:09 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Is there any way one can use Visual C or similar DLL's such as which come with National Instruments data acqusition boards to make Origin my data acquisition program? I know that in the past (long ago) there was LabGPIB for a similar concept.

cpyang

USA
1406 Posts
Posted - 04/05/2002 :  7:50:34 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Examples for NI-488 GPIB support as well as RS232 support using Origin C are available in the Orgin C PDF.

Origin C can call any DLLs written using Microsoft compilers, so in principle there should be no problem.

CP
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gilles wat

France
20 Posts
Posted - 04/29/2002 :  09:58:24 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Where is the Origin C PDF file?
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Barb Tobias

USA
305 Posts
Posted - 04/29/2002 :  10:27:12 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Here is a link to the PDF:
http://www.originlab.com/PDFs/originc.pdf

This code example will also be included in the Programming Guide Help file in the first Origin 7 patch, due out soon.
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gilles wat

France
20 Posts
Posted - 04/30/2002 :  05:58:33 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
In order to read or write on a port, include the header file:
#pragma dll(c:\WINDOWS\SYSTEM\Msvcrt)
int __cdecl _inp(unsigned short port);
int __cdecl _outp(unsigned short port, int value);

and if short port is the port number
the function:
int a= _inp(port) read the byte on the port
int b= _outp(port,databyte) write
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Jason@

USA
1 Posts
Posted - 04/30/2002 :  1:23:37 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Instead of hardcoded system path, you can code it as #pragma dll(msvcrt, system).
Jason
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