viGetAttribute(io, VI_ATTR_ASRL_BAUD, &baud) returning wrong value

[RJM]

Hi, I have gone through both MAX and the win2K Config to set my default baud rate to be 4800. However, in my IVI driver, when I call the getattribute function, it continues to return 9600??

rjmiller

[JoshuaP]

Hey rjmiller,

I would suggest trying to use set attribute in your initialization routine.

/* Set the baud rate to 4800 (default is 9600). */
status = viSetAttribute (instr, VI_ATTR_ASRL_BAUD, 4800);

This will set the baud rate to what you want in your program. This way you don't have to worry about MAX or windows settings. This command will over write any previously defined defaults.

I hope this helps.

-Josh

[RJM]

Hi Josh.

Thanks for the sugestion. I was re-reading the NI-VISA document and it indicates that VISA does default to 9600 N-8-1.

** IF **, one were to modify the default settings (ie: via MAX), then use the VI_LOAD_CONFIG as the AccessMode parameter to viOpen().

This works great and really should be the default for the IVI Wizard under CVI.

rjmiller