Cannot change baud rate when using Labview and LM4F120XL through serial communication

Jie Zhang5

I am using Labview and LM4F120XL through serial communication. But it seems using basic_serial_write_read.vi cannot change the baud rate other than 9600bps. I am sure the code in LM4 is right because I use it through putty. But I don't know why VISA.vi cannot work.

I ask for help.

over 11 years ago

0 David Racine over 11 years ago

TI__Expert 6140 points

Jie,

If you are sure that the code in your LM4F120XL is correct, then you may try asking your question on the LabView forums. There may be some one who has used the VISA.vi along with a Tiva device that can chime in but I think you'll have better luck on the LabView Instrument Control forum:

http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/bd-p/140

I did a quick search and found these posts:

http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/Labview-and-Microcontroller-interfacing/td-p/2541539

http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/how-to-change-BAUD-Rate-dynamically-using-visa-without-stopping/td-p/1624062

You may want to start there first.

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Cannot change baud rate when using Labview and LM4F120XL through serial communication