VHDL Programming

At Speed Debugging Techniques 403

Specify Top-Level Parameters

Once all the files have been specified, the parameters for the top level

need to be specified so that the design elements can be properly linked.

There are two parameters that need to be specified: the TOP-LEVEL UNIT

and TOP-LEVEL LANGUAGE.TOP-LEVEL UNITspecifies which design unit is

the top level and will be linked. This value will be specified as CPU.TOP-

LEVEL LANGUAGEspecifies the default language used to compile the design

and to write out the instrumented design.TOP-LEVEL LANGUAGEis specified

as VHDL by clicking the VHDL radio button. This is shown in Figure 18-5.

Now that we have specified all the needed parameters, click the OKbut-

ton, which saves the project and also compiles the project. After compila-

tion, Figure 18-6 shows the design loaded into the Instrumentor Window.

Specify Project Parameters

Once all the files have been added to the project, the device parame-

ters need to be specified. These parameters determine how the device

Figure 18-4
Files added to Project
File List.