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

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VLSI (297)
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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 16945

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

1 14299

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 6981

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

2834

What are the different Adder circuits you studied?

6 12689

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

Infosys, Wipro,

4 12267

Draw a Transmission Gate-based D-Latch?

1 12061

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

Wipro,

1 11461

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

Intel,

5 20288

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

2 8566

Design any FSM in VHDL or Verilog?

2 12417

Explain RC circuit?s charging and discharging?

Epsilon,

5 29106

Explain the working of a binary counter?

3 15944

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

Qualcomm,

1 8801

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

Qualcomm, RIM,

13 27570

Un-Answered Questions { Embedded Systems }

How does combination of functions reduce memory reuirement in embedded system?

795

What is the scope of a function that is declared as static?

892

Define the types of bus used in the 8085?

1014

Explain the software analysis process, such as code analysis, code metrics, and system risk analysis or software reliability.

939

What is the significance of watchdog timer in es?

844

What is 8255?

1062

Mention interrupts pins of 8085?

1152

Explain about the classification of instruction operations

1105

Why are interfaces important?

889

Why cannot arrays be passed by values to functions?

917

Explain the difference between mutexes vs semaphores?

869

Tell me what are buses used for communication in embedded system?

867

What is endianness of a system and how do different systems communicate with each other?

853

Give the logic expression for an AOI gate. Draw its transistor level equivalent. Draw its stick diagram

1485

what is the difference between embedded systems and the system in which rtos is running?

944

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