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Discrete Circuits Embedded Software Engineer Interview Questions, Process, and Tips
Discrete Circuits Embedded Software Engineer Interview Experiences
1 interview found
I applied via Referral and was interviewed in Jan 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Tell me about your past experiences.
- Q2. Why do you wanna leave your current firm?
- Q3. Why we select you?
(5 Questions)
- Q1. Do you know DSP?
- Ans.
Yes
DSP stands for Digital Signal Processing.
It involves manipulating and analyzing digital signals using mathematical algorithms.
DSP is commonly used in audio and video processing, telecommunications, radar systems, and more.
Knowledge of DSP is essential for developing embedded systems that involve signal processing.
Familiarity with DSP concepts like filtering, Fourier transforms, and signal modulation is important.
Exp...
- Q2. How BLDC motor Works?
- Ans.
A BLDC motor works by using a combination of magnets and electronic commutation to generate rotational motion.
BLDC stands for Brushless DC motor.
It uses permanent magnets on the rotor and electromagnets on the stator.
Electronic commutation is used to switch the electromagnets on and off in a specific sequence.
This sequence creates a rotating magnetic field that interacts with the permanent magnets, causing the rotor to...
- Q3. How to make BLDC driver module?
- Ans.
A BLDC driver module can be made by designing a circuit that controls the commutation of the BLDC motor based on sensor feedback.
Design a circuit that includes power transistors to drive the motor phases.
Implement a control algorithm to determine the commutation sequence based on sensor feedback.
Use Hall effect sensors or encoder feedback to detect the rotor position.
Apply PWM signals to the power transistors to contro...
- Q4. How CAN protocol works? (must remember)
- Ans.
CAN protocol is a communication protocol used in embedded systems for reliable and efficient data transmission.
CAN protocol stands for Controller Area Network protocol.
It is a serial communication protocol used for real-time applications.
CAN protocol uses a differential signaling scheme to transmit data.
It supports multi-master and multi-slave communication.
CAN protocol uses message-based communication with a priority-...
- Q5. How profibus Works?
- Ans.
Profibus is a fieldbus communication protocol used in industrial automation systems.
Profibus stands for Process Field Bus.
It is a standard for communication between field devices and control systems.
Profibus uses a master-slave architecture.
It supports both digital and analog signals.
Profibus DP (Decentralized Peripherals) is used for fast data exchange.
Profibus PA (Process Automation) is used for process automation ap...
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I applied via Recruitment Consulltant and was interviewed in Oct 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Bare metal code for blinking an LED,
- Ans.
Blinking an LED using bare metal code involves directly manipulating hardware registers without an operating system.
Access the GPIO register for the specific pin connected to the LED
Set the pin as an output
Toggle the pin state at regular intervals to create the blinking effect
- Q2. Different types of pointers, volatile variable, storage classes, Static and extern keywords, ISR,
- Ans.
Different types of pointers, volatile variable, storage classes, Static and extern keywords, ISR
Pointers: Null pointer, void pointer, function pointer
Volatile variable: Used to indicate that a variable may be changed by external factors
Storage classes: auto, register, static, extern
Static keyword: Used to declare variables that are only accessible within the same file
Extern keyword: Used to declare variables that are d...
(2 Questions)
- Q1. Find nth largest number in a jumbled array
- Ans.
Use sorting to find the nth largest number in a jumbled array.
Sort the array in descending order.
Access the nth element in the sorted array to find the nth largest number.
- Q2. Deeper questions on static, compilation
Skills evaluated in this interview
Embedded Software Engineer Interview Questions & Answers
Capgemini
Sundararajan V
posted on 30 Dec 2024
(3 Questions)
- Q1. What is basic of c
- Ans.
Basics of C include syntax, data types, variables, functions, and control structures.
C is a procedural programming language
Variables must be declared before use
Functions are blocks of code that perform a specific task
Control structures include if-else, loops, and switch-case
Data types in C include int, float, char, etc.
- Q2. What is basic of embedded
- Ans.
Embedded systems are specialized computing systems designed to perform specific tasks within a larger system.
Embedded systems are typically designed to be small, efficient, and reliable.
They often have limited resources such as memory, processing power, and energy.
Examples of embedded systems include microcontrollers in household appliances, automotive control systems, and industrial automation.
Embedded software is spe...
- Q3. What is basic of contoller
- Ans.
The basic of a controller is to manage and regulate the operation of a system or device.
Controllers receive input signals and process them to generate output signals.
They can be programmed to perform specific tasks or functions.
Examples include microcontrollers, PLCs, and PID controllers.
Shalini Singh
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
(3 Questions)
- Q1. What is difference between Normal OS and RTOS? What is difference between microcontroller and microprocessor? Write a C program to swap two numbers without using 3rd variable.
- Ans.
RTOS is a real-time operating system designed for time-sensitive applications. Microcontrollers are integrated circuits with built-in memory and peripherals.
RTOS is designed to provide deterministic and predictable response times for critical tasks.
Normal OS is designed for general-purpose computing and may not prioritize real-time tasks.
Microcontrollers are typically used in embedded systems and have limited resources...
- Q2. What is storage class in C?
- Ans.
Storage class in C determines the scope, visibility, and lifetime of variables.
C has four storage classes: auto, register, static, and extern.
Auto storage class is the default and is used for local variables.
Register storage class is used for variables that should be stored in CPU registers for faster access.
Static storage class is used for variables that retain their values between function calls.
Extern storage class ...
- Q3. What is difference between macro and constant variable in C? How to divide a number without using division operator?
- Ans.
A macro is a preprocessor directive that is replaced by its value before compilation, while a constant variable is a read-only variable.
Macros are defined using the #define directive, while constant variables are declared using the const keyword.
Macros are replaced by their values during preprocessing, while constant variables are stored in memory.
Macros can lead to code duplication, while constant variables provide ty...
Interview Preparation Tips
- C
- Embedded Systems
Skills evaluated in this interview
Embedded Software Engineer Interview Questions & Answers
Tech Mahindra
Anonymous
posted on 4 Apr 2024
I applied via Naukri.com and was interviewed in Oct 2023. There were 3 interview rounds.
Percentage, speed, series, logical abulity, differnces
(3 Questions)
- Q1. C programs, protocols, Embedded C, pointers
- Q2. Strings swapping nibbles using c
- Ans.
Swapping nibbles of strings in C
Use bitwise operations to swap the nibbles of each character in the string
Iterate through each character in the string and swap the nibbles
Ensure to handle edge cases like strings with odd length or non-hex characters
- Q3. I2c, can, spi, uart
(2 Questions)
- Q1. Normal hr questions
- Q2. Self, company details
Skills evaluated in this interview
Kumuda M
Online c programming test using online tool
(1 Question)
- Q1. Manager level round - explain about project and area of difficulty in embedded. Which one we work and fix issue
(1 Question)
- Q1. Discuss about offer letter
Embedded Software Engineer Interview Questions & Answers
Infosys
Vishnupriya Thamilarasan
posted on 1 May 2024
I applied via Job Portal and was interviewed in Apr 2024. There was 1 interview round.
Very basic c questions like an array
Divya Bhiste
(1 Question)
- Q1. Programing language
Syllabus based question
(1 Question)
- Q1. Introduction, education
jeeva E
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Mainly focused on basics of c language Stack program
- Q2. Compilation stages , function
Interview Preparation Tips
(2 Questions)
- Q1. Bitwise operators
- Q2. RTOS conecpts questions
Discrete Circuits Interview FAQs
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Discrete Circuits Embedded Software Engineer Interview Process
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