Philips Embedded Firmware Engineer Interview Questions and Answers

Simple 20 questions basic questions and c questions in 40 minutes 40 questions

Q1. Projects related questions
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Q2. C program for array swapping
Ans. 
A C program to swap elements in an array of strings
• Use a temporary variable to swap elements in the array

• Iterate through the array and swap elements at each index
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There were mostly embedded c programming questions, like what will be the output of the given code, what is the error that will occur if this program runs, etc. Lasted about 30 minutes.

Q1. Questions were on communications protocols like I2C, UART, SPI, etc. Working and block diagram of project, operating modes of a transistor.
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Q1. Bit manipulation
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Q2. Volatile keywords in c work in which way
Ans. 
Volatile keyword in C is used to indicate that a variable may be changed unexpectedly by external factors.
• Volatile keyword tells the compiler not to optimize the variable because it can be changed by external factors.

• Commonly used for memory-mapped hardware registers or variables accessed by multiple threads.

• Example: volatile int *ptr = (int *)0x1234; // pointer to a memory-mapped hardware register
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Q1. How do you handle stress
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Q2. How do you achieve work life balance
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There were aptitude questions and c language output questions and embedded system questions

Q1. Linked list and bit manipulation and one puzzle
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Q1. Bits manipulation and 3 mental ability or you can say aptitude questions
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Q1. Related embedded systems and manual testing
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