Miscellaneous

Articles

• Hedge fund strategies – in theory.
  Hedge funds have become very popular among very wealthy communities as preferred medium of investment. To our knowledge there is ...
• Banks vs Credit Unions
  A brief discussion on Banks vs Credit unions. Banks: 1) Typical higher monthly account fees, e.g. $5-$10 for basic chequing account. There ...

Q & A

• LUP Decomposition: why do we need the P? Why the LU will give us a wrong result?
  “P” i.e. partial pivoting, by using that strategy we improve stability of LU, and avoid the problem of having zero ...
• Clock Domain Crossing: When the data is crossing from faster(Source Clock) clock to slower clock(destination clock) which technique can be used?
  In case of signal crossing from slower clock (source) to faster clock (destination), its a bit easier. Nevertheless it must ...
• Clock Domain Crossing: When the data is crossing from slower(Source Clock) clock to faster clock(destination clock) which technique can be used?
  When signal is crossing from faster clock domain (source) to slower clock domain (destination), one needs to be very careful, ...
• Why will the second flop go into meta stable state in the first place? If we reset the first flop, the data will be 0 , so will the second flop not just capture the 0 though it’s not reset?
  This is probabilistic, please watch metastability lecture for more understanding. Keep in mind this is inherent problem with synchronous design, ...
• Is there any formula/approach for finding the required number of extra flops (2 or 3 or more) at receiving domain, based on the clock frequency ratio?
  Different technology nodes have different requirements for sync flops. It needs to be characterized sync flops for various parameters before ...
• What happens when CDC is between two synchronous clock domain(ex- clk1 and clk2= clk1/2)? Can there be violations?
  There may be violations, we need to see the origin of both clocks, both clocks need to be phase aligned, ...
• Error with gEcon installation on Apple MAC
  error: unable to load shared object ‘/Library/Frameworks/R.framework/Versions/3.4/Resources/library/gEcon/libs/gEcon.so’ try setting up links, e.g. ln -s /Library/Frameworks/R.framework/Versions/3.5 /Library/Frameworks/R.framework/Versions/3.5 make sure all subdirectories are there ...
• Antenna Effects – Can jumpers be in higher and lower metal both?
  different other techniques may be used, e.g. jog to upper layers, jog to lower layers might not help as it ...
• How tap cells remove latch-up?
  n-well and p-well are needed to tie to known potential, typically placement of standard cells is done via TAP-LESS library ...

Tutorials

• ⨘ } VLSI } 18 } Mentor’s Questa CDC Analysis } 0in }
  This lecture discusses Mentor’s Questa 0in CDC solution, how to use questa cdc tool, what are different clock domain crossing ...
• Turorials } Matlab | Octave } quick overview }
  This lecture provides a quick overview for Matlab or Octave. Matlab and Octave both are software tools for scientific computations. ...
• Tutorials } System Verilog } Assertions }
  This lecture discusses assertions in system verilog. Immediate, concurrent assertions with multiple clock domains are discussed. Leprofesseur } ...
• Tutorials } vi Editor: quick guide }
  This lecture provides a quick overview of vi editor. Leprofesseur } on YouTube. We appreciate your feedback and ...
• Computer Programming } 007 } Art of Programming, How to Structure your Program }
  This lecture discusses about how you can structure your program. It explains use of header files, makefile and in general ...
• Tutorials } System Verilog } A quick overview for verification }
  This video lecture provides a quick concise overview about hardware verification environment and system verilog. At many universities this topic ...
• Tutorials } gEcon – R: A quick guide }
  This video lecture takes you through basic steps to work with gEcon economics package for R. An example with plots ...