Converting Data Types

This tutorial will describe how to convert between data types. The previous tutorial, Signal Data Types, presents an introduction to the Complex Float 32 and Float 32 data types for representing digitized signals.

Char/Byte Data Type
The Char or Byte data type is another useful data type for representing binary data. The Byte data type is represented by a char in c++ which is 8 bits. The byte type can represent numbers from 0 to (2^8)-1=255. Where Complex Float 32 is used to represent digitized complex samples and Float 32 represents real digitized samples, the Byte data type is used to represent binary numbers.

The Byte data type is represented by the magenta color in GRC:



Search for the Random Source block and drag it into the workspace:



The block defaults to the green Integer 32 data type. Double-click the block to open the properties and modify the data type to byte:



The Random Source is now converted to the magenta Char or Byte data type.



Converting Byte to Float 32

 * random source
 * use in modulator

char/byte data type convert to float display