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Recent content by xmizi

  1. X

    difference between sequential and combinational architecture

    differences between sequential higer temperature will exacerbate the irregular heat movement of free electrons in the silicon, thus make more impedance to the current flow of these free electrons. Since delay time is propotional to R*C, R is bigger -> more delay time. That's why in worst case...
  2. X

    VCS, NC-Verilog and Modelsim, which is the best simulator??

    I use nc-verilog only command mode to dump VCD, then use Debussy to see the waveform. This works perfect.
  3. X

    difference between using signals and variables in vhdl

    signals and variables in vhdl Is the variable and signal in VHDL comparable to wire and reg in Verilog?
  4. X

    what is the difference berween these two cases?

    Let me see if I can explain clearer: Since you're using non-blocking, in Case 1, even if both a and b are 1, c is not assigned to out immediately, c is just scheduled to assign to out later, so when it comes to "else if (a)", obviously it is satisfied, so d is again scheduled to be assigned to...
  5. X

    IC designer or firmware engineer?

    I don't wanna discourage you guys but to tell the truth, in US no matter you're firmware or ASIC your future seems dim. More and more engineering jobs are and will be shifted to India/China. Any job that can be done in front of a computer without facing direct customers will disappear in US...
  6. X

    How to extract signal to start or stop dumping

    dump signals in verilog use: initial begin $dumpfile("./***.vcd"); $dumpvars; end you can also specify the signals and level of hierarchical in the $dumpvars. Then use debussy to translate vcd to fsdb or running power analysis or whatever you want with the vcd file VCD is usually much...
  7. X

    Static Timing Analysis

    for the transition time(slew), usually you dont need to give it out directly, for the input you just specify a driving cell or a drive strength, for the output you just specify a loading capacitance, that's it.
  8. X

    Why nobody has interest in DFT?

    test automation Uploaded file: **broken link removed**
  9. X

    Why nobody has interest in DFT?

    test automation 4 Uploaded file: **broken link removed**
  10. X

    Why nobody has interest in DFT?

    test automation 3 Uploaded file:**broken link removed**
  11. X

    Why nobody has interest in DFT?

    test automation 2 Uploaded file: **broken link removed**
  12. X

    Why nobody has interest in DFT?

    test automation 1 Uploaded file: **broken link removed**
  13. X

    Why nobody has interest in DFT?

    test automation Uploaded file: **broken link removed**
  14. X

    Why nobody has interest in DFT?

    Hi, I have some material about Synopsys DFT tools. Anyone interested? Uploaded file: **broken link removed**

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