Embedded Systems Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Embedded Systems Interview Questions

Questions Answers Views Company eMail

Give a circuit to divide frequency of clock cycle by two ?

6 17151

Design a divide-by-3 sequential circuit with 50% duty circle?

1 14397

Suppose you have a combinational circuit between two registers driven by a clock. What will you do if the delay of the combinational circuit is greater than your clock signal?

Wipro,

3 7083

The answer to the above question is breaking the combinational circuit and pipelining it. What will be affected if you do this?

2882

What are the different Adder circuits you studied?

6 12887

Give the truth table for a Half Adder, Give a gate level implementation of the same?

Infosys, Wipro,

4 12437

Draw a Transmission Gate-based D-Latch?

1 12141

Design a Transmission Gate based XOR. Now, how do you convert it to XNOR?

Wipro,

1 11533

How do you detect if two 8-bit signals are same?

Intel,

5 20434

How do you detect a sequence of "1101" arriving serially from a signal line?

2 8676

Design any FSM in VHDL or Verilog?

2 12514

Explain RC circuit?s charging and discharging?

Epsilon,

5 29306

Explain the working of a binary counter?

3 16066

Design a circuit for A + abs(B) = C, where A and B are 4 bits wide and 2?s complement representation

Qualcomm,

1 8881

Design a circuit to detect when 3 and only 3 bits are set out of 8 bits.(eg. o0101100)

Qualcomm, RIM,

13 27971

Un-Answered Questions { Embedded Systems }

6-T XOR gate?

4293

What is something substantive that you've done to improve as a developer in your career?

822

What is discrete time system?

971

What is interrupt latency? How can you reduce it?

877

What is special purpose registers in 8086?

1211

explain the various functional blocks of the 8085 microprocessor.

1015

Name the unit that controls the sequential execution of instructions?

1112

What does a microprocessor mean?

1127

Explain the 8051 microcontroller architecture?

1143

What is Noise Margin? Explain the procedure to determine Noise Margin?

2509

What are the languages used in embedded system?

882

What's the difference between asynchrony and concurrency?

1082

Explain the software instruction ei and di?

1111

Why do we need a infinite loop in embedded systems development? What are the different ways by which you can code in a infinite loop?

942

With 12 mhz clock frequency how many instructions (of 1 machine cycle and 2 machine cycle) it can execute per second?

2084

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