Capgemini Firmware Engineer Interview Questions and Answers

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
Answered by AI
Add your answer
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...read more
Answered by AI
Add your answer

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.
Answered by AI
Add your answer
Q2. Deeper questions on static, compilation
Add your answer

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.
Answered by AI
Add your answer
Q2. Write a function pointer syntax?
Ans. 
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;
Answered by AI
Add your answer
Q3. Discussion on current project?
Add your answer
Q4. Reverse the string?
Ans. 
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
Answered by AI
Add your answer
Q5. Set , clear and toggle the bit
Add your answer

Q1. Mostly salary discussion
Add your answer
Q2. Tell about yourself
Add your answer

Q1. Volatile keyword
Add your answer
Q2. Project specific
Add your answer

Q1. Salary expectations
Add your answer
Q2. Reason for job change
Add your answer

Percentage, speed, series, logical abulity, differnces

Q1. C programs, protocols, Embedded C, pointers
Add your answer
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
Answered by AI
Add your answer
Q3. I2c, can, spi, uart
Add your answer

Q1. Normal hr questions
Add your answer
Q2. Self, company details
Add your answer

Very basic c questions like an array

Basics like converting decimal number to binary.

Q1. Role in the projects handled.
Add your answer

Q1. I2c, spi and uart
Add your answer
Q2. Basic C questions
Add your answer