This isn't intended as a rebuttal, but I've learned to stay away from deeply technical questions in embedded. As long as the interviewee is sufficiently paranoid about C, is recognizably experienced via conversation, and knows the basic concepts I don't press too hard on their specific skillset.
There are just too many niches where the knowledge we each consider necessary simply isn't. I had one particularly bad interviewer grill me on how the ARM GIC worked in detail (e.g. interconnect details, differences between versions, etc) because they considered it basic knowledge. I've personally never needed to know anything about it that wasn't in a TRM.
There are just too many niches where the knowledge we each consider necessary simply isn't. I had one particularly bad interviewer grill me on how the ARM GIC worked in detail (e.g. interconnect details, differences between versions, etc) because they considered it basic knowledge. I've personally never needed to know anything about it that wasn't in a TRM.