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Recent content by blacksmith_vlsi

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    [verilog] how can I include different file in a same module

    HI ALL, here are some simplified code of my question: ///////// module test(); ... `include "xxx.v" ... endmodule module top(); ... test t0(); test t1(); test t2(); ... endmodule ///////// what i wanna ask is that can we include different files in instant t0,t1,t2 ? if yes, how should we set...
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    Need help about translating VHDL to VERILOG with synopsys

    Hi! Is anybody translate VHDL RTL to VERILOG RTL? I know there is a tool called vhd2vl, but this can't help due to complex link and reference of VHDL source code. I'm wondering that can we synthesis VHDL RTL with synopsys design-compiler and stream out in VERILOG? The VERILOG code can be RTL of...
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    How to implement DFT with single scan clock

    you mean the waveform response? if yes, then what in common is flip-flop latched data will be the same with no timing violation.
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    Can you suggest backend tools?

    backend tools a) synopsys design compiler b) ~ f) Astro
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    who has the paper of NTSC/PAL

    book 'video demystified' can helps much. it includes spec and basic encoding/decoding of NTSC/PAL/SECAM.
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    NEED HELP~!! about AMBA compatible bus

    Hi dear all, I'm new in AMBA and hope I can get some help here. Currently I'm working in building an AMBA compatible bus in verilog, my "genius" boss gives me 2 options: the first is to develop on my own with only very few assistance and very short days, second option is to translate VHDL...
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    help! simple question on windowed fft analysis

    hi, there is error in your code: U = fft(w.*u)/(w1); i guess what you mean is: U = fft(w'.*u)/(w1); right? value in matlab are in format double float. signl 'u' can not have infinite precision, that means: there exist quantization error, therefor even with retangle windowing the fft floor...
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    how to make a band pass filter with matlab?

    bandpass matlab what version is your matlab? my MTALAB v6.5 fdatool can synthesis BPF in digital without any problem.
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    why not add buffer but lockup ??

    EMI is electron-magnetic interference. EMI get more serious with chip process goes down. Antenna rule check is to avoid layers forms a antenna which will cause serious EMI. Bus as said that huge buffer can cause EMI problem,... actually i don't really know how it does. Maybe someone can help us.
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    Help with interview question #2

    Generally, setup time constrain the max frequency that system can archieve. Hold time violation can be fix by back-end CAD tool, espically P&R. Setup time is what we care in design and synthesis phase. You can shorten setup time by pipelining critical path of your designe.
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    what is hot-topic in digital design now?

    DFM, designe for manufacture, can be one very important verification under 90nm. Crosstalk & IR drop synthesis is also important under 90nm.
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    how does this register works ?!!

    hi, i think that's the situation that: when clk=1, M4 off; a=0, M3 on, therefore net b equal to 1 => M5 on => Qb=0 => M1 on => because W/L of M1 and M2, a ganna tend to 0 untill next clk state. is that right?

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