#Synplify pro component name software

After synthesis, the logic related to a non-critical timing path is modified, while machine generated instance names for the unchanged logic generally remains the same.

This can help when small changes to the RTL are made and the design is resynthesized along non-critical paths. By using the register name in the logic, changes to other subtractors are prevented.ДЄnother enhancement to synthesis naming conventions is to base the logic name on local instead of global context. Following the example above, the subtractor logic would be named Msub_regAB_sub0001. With these tools, logic naming is more predictable from one synthesis run to the next, whether the user makes no changes or small changes to the RTL. To address the problem, synthesis tools, such as Synplify and Synplify Pro from Synplicity and XST from Xilinx, have changed logic naming conventions. Any change in the design that introduces a new subtractor could cause the renaming of all subtractors in the design. The next subtractor would be named Msub_sub0002, and so on. For example, the equation for a subtractor, regAB=(AвЂќB), may be synthesized to logic named Msub_sub0001. The first step in successfully guiding is to synthesize a consistent netlist for a design that has had small changes. These elements and their connectivity are, in turn, matched and preserved. SmartGuide operates on the lowest level physical elements in the FPGA, such as look-up tables (LUTs) and flip-flops. If the Partition is up-to-date, it is exactly copied from the previous implementation and completely preserved (from synthesized netlist through routing) saving place and route runtime. If the Partition is out-of-date, it is completely re-implemented and no preservation occurs. Partitions employs a technique where module instances of the FPGA design are automatically analyzed and determined to be either up-to-date or out-of-date with respect to the previous implementation of the module. The matched components of the design are preserved while the new and modified portions of the design are re-implemented. SmartGuide uses name and topology matching techniques to identify portions of an FPGA design that have not changed respective to a previous implementation.

#Synplify pro component name software

The Xilinx Integrated Software Environment (ISE) 9.1i software features new SmartCompile Technology, which includes two new methods вЂ“ SmartGuide and Partitions вЂ“ that preserve design implementation data, such as placement and routing, and may reduce time-to-solution. It requires preserving such things as the HDL description of a design, a synthesized netlist of a module, placement information in a constraint file, and configuration data in a partial bit file. In the context of FPGAs, design preservation presents a complex implementation challenge.