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The Protocol Formatter supports three header format types: default, count, and crc. The crc style is illustrated in the simulation above.
 
The Protocol Formatter supports three header format types: default, count, and crc. The crc style is illustrated in the simulation above.
  
In order to create a preamble, a default header, and the payload data in one PDU message, an Embedded Python block was created. The code is contained in the GRC file, but also is shown here:
+
In order to create a preamble, a default header, and the payload data in one PDU message, an Embedded Python block was created. The code is contained in the GRC file, but also is shown here:  
* note that for GNURadio 3.8 a numpy array is used in the handling of the incoming PMT message. It must also be put into a byte array before being placed into the PMT u8vector for publishing to the "PDU_out" port
 
 
<pre>
 
<pre>
 
"""
 
"""

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