December 22, 2015

Puzzle: Stuck-at Fault

Around 2.5 years back, I had posted a Puzzle: Stuck-At Fault on this blog where I had asked to find the input vector to detect a particular stuck-at fault in a given circuit. This puzzle is exactly the same problem, but with a more complex circuit.

Assuming a SINGLE STUCK-AT FAULT MODEL, could you please help me with the input vector to detect:

  1. A Stuck-at-0 fault at node L.
  2. A Stuck-at-1 fault at node L.


Please post your answers in the comment section below.

8 comments:

  1. {F,D,A,B,I,H} for
    Stuck at 0 : {001X00}, {00X100}Stuck at 1 : {01XX00}, {0X0000}

    ReplyDelete
    Replies
    1. Hi Reyaz,

      Could you please elaborate why do we need two sets of vectors for detecting each fault? That should be the case for delay testing (transition faults).

      Please correct me if I'm wrong.

      Delete
    2. Here Reyaz meant to say that any vector will work but not as a set of vectors I guess.

      Delete
    3. Yes, BHOG. Correct.
      Naman,
      Sorry if it is not clear. For detecting L0 fault, any of the vectors {001000, 001100, 000100} can be used. For L1 fault, any of the vectors {010000,010100,011000,011100,000000} can be used.
      You just need to see which input will sensitize the node to flip from the stuck state.

      Delete
    4. why I and H are 1 ,it can be 00,01,10
      why F is 0, it can be X all these for L0.

      Delete
  2. I will really appreciate the writer's choice for choosing this excellent article appropriate to my matter. Here is deep description about the article matter which helped me more. Fault Location Services Dickerson

    ReplyDelete
  3. If you are looking for more information about flat rate locksmith Las Vegas check that right away. Fault Location Services Supply

    ReplyDelete
  4. I really like you words and appreciate your article post. Really Cool please keep writing.

    ReplyDelete