Xilinx System Generator v2.1 Reference Guide

∙pn_posttranslate.do - this file will run a simulation on the output of the Xilinx translation (ngdbuild) step, the first step of implementation.

∙pn_postmap.do - to run a simulation after your design has been mapped. This file also includes a back-annotated simulation on the post-mapped design.

∙pn_postpar.do - to run a simulation after your design has been placed and routed. This file also includes a back-annotated simulation step.

If you select the testbench file in the Project Navigator sources module view, you will see the four types of simulation available in the Process window.

Figure 5-5: Processes associated with testbench in Project Navigator

The System Generator has already associated the four ModelSim do files with each of the four types of simulation. To see what do files will run when each type of simulation is run, you can select one of the simulation steps, right-click, and select Properties.

Figure 5-6: Properties of simulation process

The simulation properties dialog box will show that the System Generator do file is already associated as a custom do file for this process.

Figure 5-7: Custom do file associated with simulation process

Now if you double-click on the simulation process you wish to run, the ModelSim console will open, and the associated custom do file will be used to compile and run your System Generator testbench. The testbench is using the input stimuli that were used in Simulink, and comparing the results with the corresponding outputs that

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Xilinx V2.1 manual Processes associated with testbench in Project Navigator
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V2.1 specifications

Xilinx V2.1 is a notable iteration in the series of versatile and robust Field-Programmable Gate Arrays (FPGAs) developed to cater to a wide range of applications. Launched to provide enhancements in performance and flexibility, V2.1 embodies sophisticated technologies and features that stand out in the electronics industry.

One of the primary features of Xilinx V2.1 is its improved processing power. The architecture has been optimized to support higher clock speeds and increased logic density, allowing for more complex designs to be implemented effectively. This boost in performance is facilitated by utilizing advanced silicon technologies, which significantly reduce power consumption while maximizing efficiency.

Another significant characteristic of Xilinx V2.1 is its enhanced I/O (Input/Output) capabilities. The device supports a variety of industry-standard interfaces, which include PCI Express, SATA, and various serial communication protocols. Such adaptability ensures seamless integration into existing systems, providing engineers with the flexibility to adapt to various application requirements without the need for substantial redesign efforts.

Xilinx V2.1 also features improved scalability, making it a prime choice for applications that demand diverse performance levels. This device supports an array of configurations and can be used in small-scale projects as well as in larger, more demanding environments requiring extensive resources. This scalability is further aided by support for multiple development platforms, enabling rapid prototyping and simplifying the design process.

Security is increasingly becoming a priority in digital design, and Xilinx V2.1 addresses this concern via hardware security features. It includes enhanced encryption protocols and secure boot functionalities, which help protect intellectual property and sensitive data from unauthorized access.

Additionally, the integration of advanced DSP (Digital Signal Processing) blocks allows Xilinx V2.1 to efficiently handle data-intensive tasks such as video processing and real-time signal analysis. These capabilities make it suitable for applications in telecommunications, automotive systems, and industrial automation.

Xilinx V2.1 also benefits from a rich development environment, including robust software tools that facilitate design entry, simulation, and verification. The support for industry-standard programming languages like VHDL and Verilog simplifies the development process, enabling engineers to design complex systems more efficiently.

In summary, Xilinx V2.1 stands out due to its impressive combination of high performance, flexibility, scalability, security, and comprehensive development support. These features make it a valuable asset for engineers and developers looking to innovate across various sectors, from telecommunications and automotive to industrial applications.
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