Hiring manager asked a few more behavioral questions and experience questions. Describe a time when you solved a challenging problem or a time when you had a disagreement with someone. Describe a challenging problem you debugged and solved or didn't solve and process to solve it.
Standard firmware questions. Questions about IoT and cloud computing.
Standard questions like: - Reverse bits in a 32bit unsigned integer - Swap two bits in an unsigned integer - Implement a scheduler in an embedded RTOS - Lots of bit manipulation and XOR tricks
Syncing between two RTOS threads
1) Find a loop in a linked list. Ans: Pretty straightforward 2) Find first repetitive number in an array Ans. Sort and go through the array
Tell me about the last project you worked on.
- Provide and implement APIs for using a circular buffer. How can it be made thread-safe? Handle return values and edge cases. - Leadership questions - Tell me a complex problem and how was it handled. Describe a situation when you didn't compromise on achieving a great outcome.
Multiple questions were asked, one was different types of locks in OS/RTOS
How many hw threads. How do sw thread interact. Do they share memory and so on
I2C arbitration
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