They described a real fault that they had experienced with an elevator control system and asked how I would go about identifying the root cause. They offered clues about the symptoms encountered. I don't want to be more detailed about the question because I really liked these guys and I suspect this is their favorite interview question. If you are experienced at fault finding and listen to what they are saying you can figure it out.
some tough level puzzles
c multiple choice questions, linux sytem call, pipe,fifo ipc related questions, microcontroller questions, tcp/ip programming, very tough puzzles
Would you prefer an RTOS based solution or not (and why) for an example use case provided.
Design an Or gate using NAND gate
C program to turn on a clock display by changing registers
general c questions: storage classes, pointers, structures, with some programs low level driver implementation: bit wise operations, controlling gpios, leds, atoi, strings. micro controller question: modules likes timers, gpios, interrupts, communicaton protocols etc.. previous projects explanations.
SPI Modes
What's the difference between and linked list and an array?
They gave me a simple coding test involving writing some example code to read and write to an I2C bus.
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