Embedded C Interview Questions For Freshers
  1. What is the difference between a microcontroller and a microprocessor?
  2. How to use arithmetic operators in embedded C programming?
  3. How to use logical operators in embedded C programming?
  4. How to use bitwise operators in embedded C programming?
  5. How to use the shift operators in embedded C programming?
  6. How to use the if statement in embedded C programming?
  7. How to use the while loop in embedded C programming?
  8. How to use the for loop in embedded C programming?
  9. How to use the do-while loop in embedded C programming?
  10. How to use the if-else statement in embedded C programming?
  11. How to use the switch statement in embedded C programming?
  12. How to use the break and continue statements in embedded C programming?
  13. How to use the goto statement in embedded C programming?
  14. How to define and call functions in embedded C programming?
  15. How to pass arguments to functions in embedded C programming?
  16. How to return values from functions in embedded C programming?
  17. Explain the difference between a macro and a function in C language?
  18. What is the role of a linker in embedded systems?
  19. How do you optimize code size and memory usage in embedded systems?
  20. What is the difference between RAM and ROM in microcontroller memory?
  21. How do you handle memory allocation and deallocation in embedded systems?
  22. What is the purpose of a bootloader in embedded systems?
  23. How do you handle data persistence in embedded systems with non-volatile memory?
  24. What are the different data types supported by C for embedded systems?
  25. How to define and use constants in embedded C programming?
  26. How to define and use variables in embedded C programming?
  27. What is the difference between a global and a local variable in embedded C programming?
Embedded C Interview Questions For Experienced
  1. What are the different types of memory used in embedded systems?
  2. What are the advantages and disadvantages of using flash memory in embedded systems?
  3. What are the advantages and disadvantages of using EEPROM in embedded systems?
  4. What are the advantages and disadvantages of using SRAM in embedded systems?
  5. What are the advantages and disadvantages of using DRAM in embedded systems?
  6. How to handle memory fragmentation and garbage collection in embedded systems?
  7. What are the different types of peripherals used in embedded systems?
  8. How to communicate with peripherals using different communication protocols such as I2C, SPI, UART, etc?
  9. How to implement a device driver for a peripheral in embedded systems?
  10. How to handle device initialization and configuration in embedded systems?
  11. How to handle device interrupts and events in embedded systems?
  12. How to implement and use nested interrupts in embedded systems?
  13. How to handle interrupt priority and conflict in embedded systems?
  14. How to use interrupt-safe programming techniques in embedded systems?
  15. How to optimize code size and memory usage in embedded systems?
  16. How to use memory-efficient data structures and algorithms in embedded systems?
  17. How to use power-saving techniques in embedded systems?
  18. How to use dynamic power management in embedded systems?
  19. How to use sleep modes and low-power operations in embedded systems to conserve power
  20. How to use compiler optimizations to decrease code size and increase performance in embedded systems.
  21. How to use code profiling and debugging tools to identify and eliminate unnecessary code and memory usage in embedded systems.
  22. How to use software libraries and frameworks that are optimized for embedded systems to decrease code size and memory usage.
  23. How to use hardware resources efficiently in embedded systems to decrease code size and memory usage.
  24. How to use memory-mapped I/O and direct memory access (DMA) to reduce memory usage in embedded systems.
  25. How to use code and data compression techniques to reduce memory usage in embedded systems.
  26. How to use memory-efficient coding practices such as using pointers and bit-level operations to reduce memory usage in embedded systems.