Setting the Serial Start Bit?

[Jeffrey01]

How can you set the Start Bit using NI-VISA ?  If you can't do this thru LabVIEW, how can you see what setting is used???

[RavensFan]

What do you mean by "setting the Start Bit"?  I don't think there is any setting.  A start bit is just a start bit.  You can change the # of stop bits to 1, 1.5, or 2 and you can do that in MAX and with the VISA configure serial port function.  (where 10 means 1, 15 means 1.5, and 20 means 2)

[Jeffrey01]

Yeah, you are right.  I just talked to a Hardware Vendor and he said start bit is always there, and not configurable.  It is what tells the terminal how wide the bits are, etc.  Thanks anyway!

[Nick_D]

Seems about right. I found this KB: Measuring the Output of a Serial Port for Low Level Analysis. If you take a look at the examples at the bottom, it just re-iterates what you said earlier.

Regards,

Nick D.

Message Edited by Nick D on 05-22-2007 01:38 PM