UBYTE array to float?

[Mr. G]

I'm fairly new to Labview, and haven't found an example of this on these forums.  Any help would be greatly appreciated!  

I'm reading in a character stream from a serial device, and I wish to convert a 4-byte string (or ubyte array) into a float value.  Is there a way to do this in labview?  

For example, I have the array { 0x4b, 0x1c , 0x90, 0x42 } = 0x4b1c9042 = a float value of 72.055260

I can do this in c by:

   char floatarray[] = {0x4b, 0x1c , 0x90, 0x42, 0x00}; 

   memcpy( &floatvalue, &floatarray, sizeof(float) ); 

   printf("\nMy float value is %f", floatvalue);  // would give 72.055260 for floatvalue

Is there a way to accomplish this in Labview? 

[GerdW]

Hi G,

typecast to SGL...(numeric -> data manipulation palette)

Message Edited by GerdW on 08-15-2009 12:31 AM

[smercurio_fc · Accepted solution]

Note that if you're getting the string in that order then you will need to reverse the string first:

Message Edited by smercurio_fc on 08-14-2009 05:33 PM

[Mr. G]

Ah ha....  The trick is to reverse the string first!!!!!!  I was experimenting with typecasting before I posted, but didn't understand the values it was returning!!!!  Thank you, 

Mr. G