Tirex Chargers Senior Embedded Hardware Engineer Interview Questions and Answers

Q1. Compilation process in c
Ans. 
Compilation process in C involves preprocessing, compiling, assembling, and linking.
• Preprocessing: Includes header files, macro expansions, and conditional compilation.

• Compiling: Translates source code to assembly code specific to the target architecture.

• Assembling: Converts assembly code to machine code in object files.

• Linking: Combines object files and libraries to generate an executable file.
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Q2. Write a function pointer syntax?
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Function pointer syntax allows for storing the address of a function in a pointer variable.
• Syntax: return_type (*pointer_name)(parameters)

• Example: void (*funcPtr)(int) = &someFunction;
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Q3. Discussion on current project?
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Q4. Reverse the string?
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Reverse a given string
• Use a loop to iterate through the characters of the string

• Swap the characters from start to end of the string

• Continue swapping until reaching the middle of the string
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Q5. Set , clear and toggle the bit
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Q1. Mostly salary discussion
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Q2. Tell about yourself
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Q1. Volatile keyword
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Q2. Project specific
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Q1. Salary expectations
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Q2. Reason for job change
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Q1. C Programming basic questions
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Q2. Microcontroller basics
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Q3. IoT Protocols, TCP/IP, other protocols like MQTT etc..
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Q1. Digital electronics basics, analog related questions on hardware level
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Q2. Technical scenario based questions, the work that we have done before
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Q1. We can only offer you 10% hike, this domain is not that niche. Prem Navaz Nazar was the HR with Divya P.
Ans. I was in an impression atleast the company has good reputation hence a 30% minimum hike is what I was expecting. If I stay another 2 months in my same company I will be getting 12-15% hike, don't you think 10% is very minimal? The fact that an HR told Embedded domain is not that niche, I lost interest in the company. That's the tactics they use to lure you into accepting low salaries. Think about this for joining the...read more
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Q1. Asked regarding programs
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Q2. Asked regarding questions of memory structure
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Q3. What is Compilation process
Ans. 
Compilation process is the process of converting source code into machine code by a compiler.
• Source code is written in a high-level programming language

• Compiler translates the source code into assembly code

• Assembler converts the assembly code into machine code

• Final executable file is generated
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Percentage, speed, series, logical abulity, differnces

Q1. C programs, protocols, Embedded C, pointers
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Q2. Strings swapping nibbles using c
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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
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Q3. I2c, can, spi, uart
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Q1. Normal hr questions
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Q2. Self, company details
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Online c programming test using online tool

Q1. Manager level round - explain about project and area of difficulty in embedded. Which one we work and fix issue
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Q1. Discuss about offer letter
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Very basic c questions like an array

Q1. Programing language
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Syllabus based question

Q1. Introduction, education
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