Tismo Technology Solutions Firmware Engineer Interview Questions and Answers

Code snippets were given to find output

Q1. Explain interupts
Ans. 
Interrupts are signals sent to the CPU to temporarily suspend the current program and execute a specific task.
• Interrupts allow the CPU to handle external events without constantly checking for them.

• There are different types of interrupts such as hardware interrupts and software interrupts.

• Examples of interrupts include keyboard input, timer expiration, and hardware errors.
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Q2. Timers ,counters
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Q1. Explain controllers
Ans. 
Controllers are devices that manage the operation of other devices or systems.
• Controllers receive input, process it, and send output signals to control the operation of other devices.

• Examples of controllers include microcontrollers, PLCs (Programmable Logic Controllers), and PID controllers.

• Controllers can be used in various applications such as industrial automation, robotics, and consumer electronics.
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Q2. Make a counter using d flipflops
Ans. 
A counter can be created using D flip-flops by connecting the output of one flip-flop to the input of the next.
• Connect the Q output of one D flip-flop to the D input of the next flip-flop

• Use clock signal to trigger the flip-flops and increment the count

• Use additional logic gates if needed for specific counter functionality
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General questions were asked

Q1. 8051 architecture
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Q2. Digital and analog
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There were aptitude and code snippets qs

Q1. Basic electronics
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Q2. Questions on Projects
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Genral apptitude with 25 questions for 30mins and coding section 2 questions 30 mins