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Recent content by AaronYang

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    Difference between -ntcnotchks and -notimingchecks

    According to Gate-Level Simulation Methodology by Cadence: "The -notimingchecks option turns off all timing checks. Because the timing checks have been turned off, any calculation of delays that would normally occur because of negative limits specified in the timing checks is disabled" "You can...
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    How can I create a dynamic array with different random values in random size?

    Interview question: I have a systemverilog based class as following: class A; rand n; constraint c:{n>=10 &&n<=15}; bit [31:0] arr[$]; randc [31:0] data; endclass In this case 'n' is the size of the dynamic array arr. And the question is how to write a method to create the array so that all...
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    What is routing tracks?

    Hi, I was asked a question during an interview for a physical design position: how many tracks do you have in your design in a specific project. (I used Encounter as PNR tool) Can anyone please give an explanation of what a 'track' is and why it is introduced by the EDA tool? Thank you all.

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