Embedded Systems Interview Questions
Questions Answers Views Company eMail

What are software interrupts?

556

On a scale of one to ten, rate me as an interviewer now 26 which stack is used in 8086?

551

What is the logical difference between move a to b and compute b = a?

580

What is stack pointer?

632

What is sim and rim instructions?

637

What are set up time & hold time constraints?

588

Explain what is sim and rim instructions?

639

How many logical drives is it possible to fit onto a physical disk?

551

Which flags can be set or reset by the programmer and also used to control the operation of the processor?

1043

What is the difference between 8085 and 8086 in microprocessor?

589

How many interrupts are there in 8085?

585

Mention what is the difference between microprocessor and microcontroller?

610

How i/o devices are classified for embedded system?

415

Explain what is the difference between mutexes and semaphores?

391

Whether we can use semaphore or mutex or spinlock in interrupt context in linux kernel?

436


Un-Answered Questions { Embedded Systems }

What is address bus, data bus and control bus in microprocessor 8051 ?

566


What is the significance of watchdog timer in embedded systems?

409


After the following has been executed MOV BL, 8C MOV AL, 7E ADD AL, BL; what will be the contents of register AL?

1849


What is the need for an infinite loop in embedded systems?

440


State an interrupt that is not level sensitive?

605






Explain an interrupt?

588


Explain why is the number of gate inputs to cmos gates usually limited to four?

986


Mention the types of programmed data transfer?

624


How many logical drives is it possible to fit onto a physical disk?

551


What software languages have you used to design, develop, and debug software application interfaces?

457


What is the stack segment used for?

570


What types of high speed CMOS circuits have you designed?

2044


Let A & B be two inputs of the NAND gate. Say signal A arrives at the NAND gate later than signal B. To optimize delay, of the two series NMOS inputs A & B, which one would you place near the output?

844


Can you have constant volatile variables?

426


Tell me what is the function of simple thread poll in embedded system?

500