Learn more about EDA Link Simulator

Gaining Access to and Applying Port Information

EDA Simulator Link software passes information about the entity or module under test in the portinfo structure. The portinfo structure is passed as the third argument to the function. It is passed only in the first call to your MATLAB function. You can use the information passed in the portinfo structure to validate the entity or module under simulation. Three fields supply the information, as indicated in the next sample. . The content of these fields depends on the type of ports defined for the VHDL entity or Verilog module.

portinfo.field1.field2.field3

The following table lists possible values for each field and identifies the port types for which the values apply.

HDL Port Information

Field...	Can Contain...	Which...	And Applies to...
field1	in	Indicates the port is an input port	All port types
	out	Indicates the port is an output port	All port types
	inout	Indicates the port is a bidirectional port	All port types
	tscale	Indicates the simulator resolution limit in seconds as specified in the HDL simulator	All types
field2	portname	Is the name of the port	All port types
field3	type	Identifies the port type For VHDL: integer, real, time, or enum For Verilog: 'verilog_logic' identifies port types reg, wire, integer	All port types
	right (VHDL only)	The VHDL RIGHT attribute	VHDL integer, natural, or positive port types
	left (VHDL only)	The VHDL LEFT attribute	VHDL integer, natural, or positive port types
	size	VHDL: The size of the matrix containing the data Verilog: The size of the bit vector containing the data	All port types
	label	VHDL: A character literal or label Verilog: the string '01ZX'	VHDL: Enumerated types, including predefined types BIT, STD_LOGIC, STD_ULOGIC, BIT_VECTOR, and STD_LOGIC_VECTOR Verilog: All port types

The first call to the MATLAB function has three arguments including the portinfo structure. Checking the number of arguments is one way that you can ensure that portinfo was passed. For example:

if(nargin ==3)
 tscale  = portinfo.tscale;
end

Oscfilter Function Example

Additional Deployment Options

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