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Recent content by eda_wiz

  1. E

    Digital circuit... Post layout power estimation

    i want to accurately estimate the power of a digital block after doing physical design. what tools/methods should I use?
  2. E

    Digital circuit... Post layout power estimation

    Currently I use power compiler to do post layout power esimation of my block. ie use the SOCE netlist and do post layout simulation to generate vcd/saif. annotate the vcd/saif to power compiler along with the netlist, sdf to report power. is there any more accurate method apart from doing...
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    change_names in Syn DC .

    Anyone got this warning with change_names command? Safe to ignore? change_names -rule verilog -hierarchy Warning: The specified replacement character (_) is conflicting with the specified allowed or restricted character. (UCN-4) 1
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    Missing power usage in power compiler report

    Hi folks, After reporting post layout power in power compiler, I noticed that out of the 2 blocks I have 1 block (SPI) consumes 35% -power and another block(ECG_CQH) consumes less than 1% power. The report doesnt show where does the remaining power goes. ANy idea where is remaining power...
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    Clock Tree Synthesis with Clock gating.

    I have inserted integrated clock gate cells in my design in DC and during clock tree synthesis, Encounter inserts the CLK buffers before the clock gate. This causes the buffer to run, when there is no clock required. ANyone know how to move the clock buffers after the clock gate cells, so that...
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    SoC Encounter : Partially Routed Nets

    Hi folks, I get the below warning of partially routed nets in SoC Encounter. However verifyconnectivity check passes with 0 violations/warnings. Is this something, I should be concerned about?:???: #WARNING (NRDB-1005) Can not establish connection to PIN Q at (371.700 113.775) on MET1 for...
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    Power Routing issue in SoC Encounter

    Using SoCE after sometime. have an issue. I have a verilog netlist in which an SRAM module is instantiated. The power supply name of SRAM in the netlist & in SRAM LEF is ramvdd, ramgnd. For the standard cells, the power supply in LEF file is vdd! & gnd! Now while routing I need to connect...
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    how to decide setup and hold margin on state timing analyze

    depends on which stage u are doing STA. for eg; in prelayout stage 10% margin for setup and 0% hold will do .
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    Vdd Scaling for standard Cells in AMS 0.35u

    ams 0.35 Hi folks, am designing a digital chip in AMS .35u library. Inorder to reduce power I would like to used a scaled Vdd of 1.2 V instead of the 3.3V (nominal) specified by the vendor. The has been simulated correctly in Nanosim with the scaled Vdd. However I am unsure whether DRC (esp...
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    I have got a baby girl

    Is that ur kids pic? she's cute. May the Almighty bless her.
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    PhD in IMEC vs US university

    imec phd payment if u didnt get in top 20 US univ. Go for IMEC
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    Interview Question: Design an inverter for a fanout of 4??

    dude, I think u have to start with the assumption that the minimum size inverter in that process can drive a fanout of load of 1. then just upsize W/L of both PMOS and NMOS by 4 for driving fanout load of 4. if u need exact numbers, other details like exact value of the fanout load(i.e how...
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    (Wireless )Communications Companies in India?

    wireless specific companies are very less.. many companies are doing projects in wireless though... to name a few TI Intel sasken beceem commn--> wireless specific.
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    How about the IC design jobs in Australia?

    australia job design ic I remember seeing an openings ad for Motorola(before becoming feescale) in australia. for Asic designer.. not sure abt analog.

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