Xilinx XST Synthesizer Configuration

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Modified by Admin on Sep 13, 2017

The system includes a powerful built-in synthesis engine, which is used by default. It also supports use of the Xilinx XST synthesizer within the design environment. To enable an FPGA project to utilize this synthesis tool the project synthesis option must be set to XST Synthesizer. This is done by selecting Project » Project Options from the menus, clicking on the Synthesis tab and choosing XST Synthesizer from the dropdown Synthesizer list. Once this is selected you must indicate the folder where the XST binary executable file resides, using the dropdown's associated browse button (...). The Options region of the Synthesis tab will become populated with XST-related options. Configure these to best suit your design.

For advanced users, options that are not present on the Synthesis tab can be accessed from the DefaultScript_XST_CPLD.Txt and DefaultScript_XST_FPGA.Txt script files located in the \System folder of the installation. XST switches must be configured in accordance with the Xilinx XST User Guide.

Figure 1. Setting the Xilinx XST Synthesizer options.

If you are not familiar with the Xilinx synthesis tools, it is recommended that you start designing with the built-in DXP or Altium synthesis engines.