Deevia Software India Embedded Developer Interview Questions and Answers

Q1. Microprocessor vs microcontrollers
Ans. 
Microprocessors are general-purpose processors while microcontrollers are specialized processors for specific tasks.
• Microprocessors are used in computers and smartphones, while microcontrollers are used in embedded systems like washing machines and traffic lights.

• Microprocessors have separate memory and I/O devices, while microcontrollers have integrated memory, I/O ports, and peripherals.

• Microprocessors require extern...read more
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Q2. Bit swapping and bit clear ,toggle,set
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Q1. Project related questions
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Q1. Basic hr question, salary,negative and postive of a person
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Q1. What about salary version
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Q2. Tell me about yourself?
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Q3. If some critical situation what will you do?
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Q1. C programming questions: bitwise - set bit storage classes function pointer
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Q2. Can frame format
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Q1. Why are you interested in the field of embedded software development?
Ans. 
I am fascinated by the challenge of working with low-level hardware and creating efficient, real-time systems.
• Enjoy the challenge of working with low-level hardware

• Excited about creating efficient, real-time systems

• Passionate about developing innovative solutions for embedded systems
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Q2. What is CAN protocol?
Ans. 
CAN protocol stands for Controller Area Network protocol, used for communication between microcontrollers and devices in automotive and industrial applications.
• CAN protocol is a robust and reliable communication protocol used in automotive and industrial applications.

• It allows multiple microcontrollers to communicate with each other without a host computer.

• CAN protocol uses a differential signaling scheme to reduce ele...read more
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Q1. What is binary coded decimal?
Ans. 
Binary Coded Decimal (BCD) is a way of representing decimal numbers using a binary code.
• BCD uses four bits to represent each decimal digit.

• Each decimal digit is represented by its binary equivalent.

• For example, the decimal number 25 is represented in BCD as 0010 0101.
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Q2. How keyboard mapping works in a microcontroller?
Ans. 
Keyboard mapping in a microcontroller involves assigning specific key codes to each key on the keyboard.
• Keyboard mapping is typically done using a lookup table that maps physical key presses to corresponding key codes.

• The microcontroller reads the key code when a key is pressed and sends it to the computer for processing.

• Keyboards may use different mapping standards such as ASCII or HID.

• Custom keyboard mappings can als...read more
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Q3. What is the principle of analog to digital converter?
Ans. 
An analog to digital converter converts continuous analog signals into discrete digital values.
• Converts continuous analog signals into digital values

• Utilizes sampling and quantization techniques

• Common types include successive approximation ADC and delta-sigma ADC
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Online Assessment Test Pattern

English Essay Writing - 25 Minutes
Cognitive and Gaming
Domain Test - 55 min
Programming - 2 Programs 40 Minutes
We can take breaks in between the rounds. Coding should be done only in c or cpp. No other languages are allowed

Q1. Tell me about yourself I'm from IT background. It's done for 30 minutes
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Q2. Projects in depth (challenges, some part of code explain)
Ans. 
Developed a real-time monitoring system for industrial robots
• Challenges included optimizing code for real-time performance

• Implemented communication protocols like CAN bus for data exchange

• Used PID control algorithms for precise robot movements
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Q3. Given hacker rank question (medium) level and asked to solve
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Q4. Some technical questions about c and cpp like structures, pointers,oops concepts
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Q1. Tell me about yourself It's done for 30 minutes
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Q2. Strengths and weakness with examples
Ans. 
Strengths in problem-solving and teamwork, weakness in time management
• Strength: Strong problem-solving skills - able to analyze complex issues and find effective solutions

• Strength: Excellent teamwork - able to collaborate with others to achieve common goals

• Weakness: Time management - sometimes struggle to prioritize tasks and meet deadlines
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Q3. What do you know About KPIT (company related)
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Q4. What motivates you?
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Q5. Any questions? At the end interviewer asked me
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Q1. Basic c questions not that much stress
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C programming language

Asked about previous project
pointer's coding

Q1. Explain your previous project?
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Q2. Why do you prefer bosch
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