How to read data from DOS?

[Bill Choy]

Hi

I'm now using System Exec.vi to call a batch file to program a chip through COM port. The chip will return messages to PC for the current status and I want to get the message from LabVIEW. How to do that?

Bill.

[vt92]

If I remember correctly, there is a DOS command that allows you to redirect the output to a file. You could put this command in your batch file.

[Darren Harrison]

Hi,
If you can use LabVIEW v6, it has a nice new function to handle dos commands
& retrieving output from them.
Failing that, you can pipe the output of a programme to a text file like
this

dir > dirlisting.txt

and then just read the text file. You need to ensure that you wait until
after the programme has run so you may want to use the LVWUtil library which
has a programme call vi where you can wait until it returns.

Darren.

"ctbiu" wrote in message
news:5065000000080000006E4F0000-1023576873000@exchange.ni.com...
> Hi
>
> I'm now using System Exec.vi to call a batch file to program a chip
> through COM port. The chip will return messages to PC for the current
> status and I want to get the message from LabVIEW. How to do that?
>
> Bill.