How to convert 5 volt signal to 3.3 volt logic?
Embedded Firmware Engineer Interview Questions
173 embedded firmware engineer interview questions shared by candidates
embedded c , i2c ,spi, modbus
Describe the electronic design architecture in a project you've worked on?
Apparently there were some questions that I answered incorrectly or inappropriately, but I never got the opportunity to find out which these were. I thought I did pretty well with the onsite interviews actually, and walked out feeling pretty confident. So it was a surprise that they chose not to make an offer. Technical questions included issues about program structure (main loop code versus ISR code), concurrency issues with respect to interrupted operations (crtitical sections and mutexes), timers, i2c, SPI and other interfaces, etc.
Describe I2C protocol and explain common practical problems in implementation. Explain clock stretching and multimaster mode. Write pseudo code for a I2C device driver. Explain all modes of SPI - CPHA,CPOL
Regarding projects , Basic Electronics , Analog Electronics
Write a C code to reverse a byte
Introduce about your jobs and your majors
They walked through a real-life bug with one of their products, and I had to figure out what the problem might have been.
Explain ADC resolution and what is quantization error?
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