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Recent content by hjacky

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    [Moved] how to know how big is a asci/fpga design?

    Thanks for that! I can further my questions like this: I wonder if you have some tutorials to guide choosing FPGA chips? To FPGA, it is more important to know how to choose a suitable FPGA, not too expensive, however, compatible for the logic; For ASIC, it is more important to achieve the...
  2. H

    [Moved] how to know how big is a asci/fpga design?

    Hello, guys, may i ask 1 naive questions: 1. how do you know the size of a asci or fpga design? when you say size, do you all mean the cell number or something else? Thanks,
  3. H

    About compile_ultra and compile_ultra -incr

    For the second flow, after i generated a ddc file from DC, i can use the ddc to generate DEF/FP files in ICC, then i can use the def and former ddc files as input data into DC (one of Design compiler topographical feature).
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    About compile_ultra and compile_ultra -incr

    Hi, Does someone know the difference between the following flow in Design Compiler: Flow 1: Netlist+sdc -> compile_ultra -> compile_ultra -incr -> final_compile_1.ddc Flow 2: Netlist+sdc -> compile_ultra -> initial_compile.ddc -> compile_ultra -> final_compile_2.ddc Thanks,
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    what is pass-gate cell?

    would someone explain what is the pass gate cell? or lib cell with pass transistor? what does this mean? i am confused:roll:
  6. H

    Questions About UPF constrains

    To question one, I got answers from experienced engineers that we can adopt different strategies within one power domain, please help with other questions, thanks in advance!
  7. H

    Questions About UPF constrains

    Hi, experts, I have the following questions, would you please check the questions and see if can resolve? one : Can multiple retention/level_shifter/isolation strategies set to one power domain? two :Have any summaries about the isolation/level_shifter usage scenarios in the design, i know...
  8. H

    how to get top design name in Design compiler?

    yep, cause my job is to analyze other's design automatically, so i have this problem, but now i decide the top design by myself...
  9. H

    DC Topographical error: fail in placement: Over Utilization

    Hi, Gaom, could you please point out what difference did you spot between the two DEFs?
  10. H

    how to get top design name in Design compiler?

    Anyone knows? I have a serials of hierarchical modules to deal with, and I need a command (or any report can show the top design?) to get the top design names of these modules. Thanks in advance! Eric

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