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In c: 1. Write any program to do segmentation fault. 2. Program to do for toggling at a certain position with call back usage. 3. Write a program reverse words in string. 4. Rotate the particular bit in the right side whatever position passed In linux : Use two threads and print even and odd with Mutex synchronisation technique. Difference between kernelspace and userspace. Wireless: Wifi client communication Prplos/openwrt: 1.Explain about ambrorix. 2. Explain mainly libamxo,libamxrt and libamxd. 3. Explain about LCM and usage of cthulhu, rlyeh and timingila on it.
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Senior Embedded Software Engineer

Interviewed at VVDN Technologies

3.4★
Jul 9, 2024

In c: 1. Write any program to do segmentation fault. 2. Program to do for toggling at a certain position with call back usage. 3. Write a program reverse words in string. 4. Rotate the particular bit in the right side whatever position passed In linux : Use two threads and print even and odd with Mutex synchronisation technique. Difference between kernelspace and userspace. Wireless: Wifi client communication Prplos/openwrt: 1.Explain about ambrorix. 2. Explain mainly libamxo,libamxrt and libamxd. 3. Explain about LCM and usage of cthulhu, rlyeh and timingila on it.

There's not a particular question that's most difficult. I'd recommend being pretty up on RTOS and recent embedded microcontrollers. In my case I feel I am rather up on C, C++, board design and bringup, hw tools, author-level linker and debugger tech, fair RTOS understanding at a kernel level, register-level ARM and AVR understanding, and decades of UNIX experience, and those didn't get me to "yes", despite all those fitting the job description. So you might wish to set expectations that a whole constellation of judgement may be at play and a good technical show may be just half of the requirements. I really don't know why I wasn't selected, unfortunately, so my guess is in a market like SF or Seattle one gets a pretty sweet pool from which to choose.
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Senior Embedded/Firmware Software Engineer

Interviewed at Synapse Product Development

4.4★
Nov 26, 2014

There's not a particular question that's most difficult. I'd recommend being pretty up on RTOS and recent embedded microcontrollers. In my case I feel I am rather up on C, C++, board design and bringup, hw tools, author-level linker and debugger tech, fair RTOS understanding at a kernel level, register-level ARM and AVR understanding, and decades of UNIX experience, and those didn't get me to "yes", despite all those fitting the job description. So you might wish to set expectations that a whole constellation of judgement may be at play and a good technical show may be just half of the requirements. I really don't know why I wasn't selected, unfortunately, so my guess is in a market like SF or Seattle one gets a pretty sweet pool from which to choose.

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