How can I convert a string of hex values to a hex format string programatically?

[chuck72352]

Thank you!

[Mark_Yedinak]

Nice solution Darin.

[Mark_Yedinak]

OK, I had a thought this morning when I was one the road to work. I was impressed with Darin's suggestion and got to thinking about it. Now, for the teaching moment. One of the suggestions with a minor modification would be much more efficient if the input data was a large buffer. So, which one is more memory effiicient and why? Also, what would the modification be?

[chuck72352]

Mark,

With your original VI it doesn't seem to work when the input string is 484 characters long. If I cut that in about half it works fine. Any idea why?

Thank you,

Chuck M.

[chuck72352]

More specifically, after 256 characters, the output string, repeats itself.

[Mark_Yedinak]

Post your code. It works fine with long strings. I just tested a 1024 byte string with no issues.

Message Edited by Mark Yedinak on 03-19-2010 12:05 PM

[RavensFan]

My guess is that you have your index set to be a U8 integer rather than a U32 or I32 and it is rolling over when you increment it past 255.

[chuck72352]

Yes, exactly, I just discovered that a few minutes ago.

Thank you,

[chuck72352]

I changed the initialization of the for loop from U8 to U16 and it works great

[RavensFan]

Do you have LabVIEW 2009?  If so, Mark's screenshot was a VI snippet.  You could drag and drop that image from the browser to the block diagram, and you'd have the code.