-Recruiter cold called after my resume was submitted for another position. -Applied to a DSP FW engineer position - 1st round - Technical + behavioral + resume based questions with Hiring Manager - Got positive feedback, but manager wants me to interview for a different position (virtual onsite interview) - Applied to the position, not exactly matching but there was some relevance - Onsite (6 rounds total including with recruiter) -1st round - General questions around embedded systems, resume based, Q format values. 1 coding - find number of 1's in a number - 2nd round - Technical questions around Wireless communications, FFT's, how to decide on FFT length for a certain sample rate. (Found it difficult as wireless is not what I prepared for) - 3rd round - Discussion around my resume, some questions and probing around embedded system design. Coding questions including - find size of structure which has variable specifying bit field, code a function to change endianness of a value - 4th round - With manager, again discussion on resume, technical aspects of the job (This was a light round in terms of technicality) - 5th round - Technical questions on Wireless communication, different modulation. One coding question to convert soft bits of qpsk to hard bits where size of soft bits is 6 bits in a continuous data stream. - Recruiter round was about why apple, why did you leave last job, why are you looking to switch now.
Firmware Interview Questions
2,358 firmware interview questions shared by candidates
Why QA ?
Product that I use on daily basis - ex Mouse. Things that I like about it and I do not like about it ?
What is something you did that you are not proud of?
Which type of communication buses do you know?
-Set and toggle a bit -code a pallanguzhi game and simulate it
Two back-to-back panel sessions, two interviewers each. First was firmware architecture and system design, solid, relevant discussion. Second was a whiteboard coding session, the main one being a concurrency problem (spotting a race around a shared variable read-modified-written in an ISR/thread context). Fair question for a firmware role. Overall the technical bar was fair. Just be ready to code and reason out loud at a whiteboard under pressure.
How do you create an array of pointers? Give an example as to why would you need such an array.
Size of a structure with members as char, int and float
How do you identified the hardware failure bug?
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