Let's Program the Transistors
This is an interview experience of Qualcomm, an American multinational semiconductor and telecommunications equipment company. This is an on campus placement experience and has been share by Mr. Anuj Kumar (BITS Pilani). Hey guys… I appeared for Qualcomm Interview from Bits-Pilani, Pilani campus. It was 2 day process which included: Written Test Written test included…
8085 is a very basic microprocessor with the capability of limited arithmetic and logical operations. It has dedicated arithmetic instructions for addition, subtraction, increment and decrement. If we want to perform a multiplication operation then we need to write a program for it. Multiplication is nothing but repeated addition. This post presents assembly language program…
Many of you might have worked on different VLSI technology nodes such as 180 nm, 90 nm, 45 nm etc. in circuit simulation tools like Cadence etc. With the invention and evolution of transistors, various technologies came into existence and more would continue to come in future. According to Moore’s law, the number of transistors…
The Electronics engineers should know the steps to design a particular circuit. While we study, we directly study the properties of the electronic block and the circuit diagram of the corresponding block. We never think how had we landed up to that particular circuit diagram. For example when we talk about digital Multiplexer, Decoder or Counters; we…
Read More “Step by Step Method to Design a Combinational Circuit” »
Qualcomm Interview Question Bank continued from Part 3… Q : What is race-around condition? What is the solution for it? A : In JK flip-flop, when both J and K are 1, the state (output) of the flip-flop will oscillate between 0 and 1 resulting to uncertainty in the state of the flip-flop at the…
Qualcomm Interview Question Bank continued from Part 2… Q : What is the difference between latch and flip-flop? A : The main differences between latch and flip-flop can be understood here. Q : What is the Nyquist rate condition and condition for no aliasing to take place? A : If a signal is bandlimited to W…
Qualcomm Interview Question Bank continued from Part 1… Q : Draw the circuit diagram for a random number generator. A : Following are the circuits for a random number generator (RNG), (i) using IC 555 timer, IC 4026 and 7-segment, (ii) using 8051 and 7-segment, Q : What are the advantages and disadvantage of IIR and…
In the campus placement season, it is better if we get company specific questions to prepare for the selection process. So, to help you out, we have already posted Question Banks for some core ECE companies and now, let us look at the following questions asked in recent times in Qualcomm interviews. In general, according…
The TLM 2.0 transaction level modeling standard from the Open SystemC Initiative (OSCI) was released on 9th June 2008. Transaction-level modeling (TLM) is a high-level modern approach to modeling digital systems. That modeling is based on the abstraction of the communications between different parts of the model to allow to work the algorithms of each…
Read More “Getting started with TLM 2.0 – Introduction and Basic Constructs” »
Transaction-level modeling (TLM) is a high-level modern approach for modeling digital systems. TLM-1 standard defined a set of interfaces which could be used for transporting transaction by value or reference. TLM-1 is being used successfully in some applications but it had shortcomings which have now been improved upon in TLM 2.0. TLM-1 has no standard…
Read More “What is TLM-1 and what was the need for TLM 2.0?” »