Preview Questions Software Engineer (Embedded) | Role Specific Skill

Question 1: In SPI communication, what is the purpose of the MISO (Master In Slave Out) line?

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It carries data from the master to the slave

It controls chip selection

It carries data from the slave to the master

It synchronizes the data clock

Question 2: How does the ITM (Instrumentation Trace Macrocell) assist in debugging?

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By monitoring memory usage

By simulating hardware peripherals

By providing real-time trace capabilities

By analyzing network traffic

Question 3: In embedded systems, what does bus contention refer to during hardware-software integration?

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Conflict between different interrupts

Inconsistent power supply to peripheral devices

Software errors during hardware initialization

Multiple devices trying to access the same communication bus simultaneously

Question 4: How does Direct Memory Access (DMA) improve hardware-software integration in embedded systems?

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By simplifying error recovery during peripheral communication

By enabling real-time software updates without interrupting the system

By allowing peripherals to access memory directly, reducing CPU load

By ensuring high-speed communication between microcontroller and external devices

Question 5: What is the best practice for managing firmware updates in the field?

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Regular factory resets

Secure over-the-air updates

Firmware patching via USB

Manual replacement

Question 6: Which microcontroller architecture is known for its simplicity and low power consumption, making it popular in embedded systems?

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AVR

MIPS

Intel x86

ARM Cortex-M