Can I define customized Bus Data Types as input data types to HDL Coder DUT?

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MathWorks Support Team
MathWorks Support Team on 31 Jan 2019
Edited: MathWorks Support Team on 18 Aug 2023
Can I define customized Bus Data Types as input to HDL Coder DUT?
We normally define control registers which are bit fields (start bit, operation mode on 3-bits...). I tried to mimic this by defining a bus (Control_Bus) representing the control register structure. Unfortunately, I could not select AXI-4 Lite for the input with type Control_Bus.

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MathWorks Support Team
MathWorks Support Team on 18 Aug 2023
Edited: MathWorks Support Team on 18 Aug 2023
As of MATLAB R2018b, the HDL Coder's implementation of the AXI4 slave interface does not support bus data types. The workaround is to use the bitslice/bitconcat block on a uint input signal and slice it according to your custom data type.  You will want to fully document your constructed data type and define what each bit position signifies.

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