Einfochips Senior Embedded Engineer Interview Questions and Answers

Q1. Q1. What is static, global,
Ans. 
Static and global are storage classes in C programming language.
• Static variables have a local scope but retain their value between function calls.

• Global variables have a file scope and can be accessed from any function within the file.

• Static functions have a file scope and can only be called within the file.
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Q2. Q2. Find the mistakes in the code
Ans. 
Mistakes in embedded software code
• Check for buffer overflows and memory leaks

• Ensure proper error handling and exception handling

• Verify correct usage of pointers and memory allocation

• Check for race conditions and synchronization issues

• Ensure compliance with coding standards and best practices
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Q1. Basic C, embedded C(interrupt,timer, counter), UART,I2C ,SPI, CAN protocol. Scheduling,alarm, events,task,
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Q2. Explain All protocol, what is call by value, call by reference, structure, union, arrays
Ans. 
Explanation of protocols, call by value/reference, structures, unions, and arrays.
• Protocols are a set of rules for communication between devices or software components.

• Call by value passes a copy of the value to a function, while call by reference passes a reference to the value.

• Structures are user-defined data types that group related data together.

• Unions are similar to structures, but they share the same memory locat...read more
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30 mins - Coding, 15mins each - 3 MCQ rounds

Q1. Data Structures, Memory Management
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