Hi All,
There is a more efficient way to build an U8 out of 2 nibbles in U8's and that
is to use the Logical Shift functions in the 'Advanced\Data Manipulation'
Palette.
Instead of explaining, how to do it, I have attached an example VI.
Tim
Joey Oravec wrote:
> I just solved a similar problem the hard way.
>
> There was an instrument which communicated over serial (visa), and I wanted
> to deal with the nibbles. I did:
>
> - string to U8 byte array
> - indexed the byte array for each U8
> - converted U8 to boolean array
> - get desired nibble as a subset of the boolean array
> - build-array (concatenate inputs) with each high and low nibble
> - build an array of U8
> - convert U8 array to string
>
> Something like that should work for you..... If y
ou need any help email me
> at joey@quantumsignal.com
>
> -joey
>
> "Toni Lindner"
wrote in message
> news:998e6cbb.0208090532.61174ed7@posting.google.com...
> > Hi,
> > I have a Hex String which I would like to write to file. Each hex
> > charakter should be represented by a nibble.
> > I convert the hex characters to decimal characters, then I use
> > "decimal string to numbers" vi and change the format to U8.
> > The problem is, if I look at the written file with a hex-editor, each
> > nibble is filled up to 8 bit with zeros.
> > For example if I save a few hex characters "03F01042" to file and open
> > it with the hex-editor it would look like "00030F0001000402" (each
> > character added a prefix-zero).
> > I thought I would have to write to file with nibbles not with U8 but I
> > didn't found any vi that could do so.
> > Anybody an idea how to overcome this little problem?
> > Thanks in advance.
