Cypress Semiconductor Perform CY7C1372D Betriebsanweisung PDF herunterladen (Seite 18)

Once you are inside the ModelSim environment, you should be able to use the tools to run

simulations of the design. The wave window is many times the main focus since it gives a logic

analyzer view of the design.

You can quickly view debug the design within ModelSim because you can probe the logic down to

the lowest level. This visibility is often lost after synthesis and fitting because logic is minimized by

the tools and may be trimmed out if unused, even if by accident. When you select an design unit

within ModelSim Work Space window, the processes, signals and variable for that design unit are

shown. You can add them to the window by selecting them and right-clicking to add to the wave

window.

Some common simulation problems are

• libraries are wrong version – be sure to compile them from within Xilinx ISE before use

• wrong simulator resolution – be sure to use 1 ps resolution for all designs

• design won't load – be sure all models and packages were compiled

• naming conflicts – all instances must have a unique name

• source code won't compile – check that you compile with the correct version for 1993 to

2000 version of HDL

Innovative Integration FrameWork Logic User Guide 18

Illustration 9: ModelSim Wave Window Example

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Cypress Semiconductor Perform CY7C1372D Betriebsanweisung Seite 18