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Home Community Discussion Forums Most Active Hardware Boards Instrument Control (GPIB, Serial, VISA, IVI) Topic

Instrument Control (GPIB, Serial, VISA, IVI)

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Can I get incoming byte count prior to CNiVisaSession::Read()?

Can I get incoming byte count prior to CNiVisaSession::Read()?

‎08-11-2005 07:11 PM

I would like to determine how many bytes have arrived via the COMM port prior to specifying the count in the CNiVisaSession::Read(buffer, count, actual_count)?  This way I could avoid timing out due to an overcount.
 
 
-dahill
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Re: Can I get incoming byte count prior to CNiVisaSession::Read()?

‎08-12-2005 09:29 AM

you can check the VisaSerialBytesAvailable attribute. It returns an unsigned int 32 value.
 
 
 
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