+ Microcontroller Interview Questions and Answers, Question1: Introduction of Microcontroller Architecture? Question2: Intel follows which. Micro controller Interview Questions And Answers mentioned below who is very important for the Engineering Students. Microcontroller. Micro controller is the. This top 10 Microcontroller interview questions and answers will help interviewee pass the job interview for Microcontroller Handware or programming job.
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Microcontroller+interview+Questions+and+portal7.info - Download as PDF File ( .pdf), Text File .txt) or read online. Interview Questions Microcontroller. Microprocessor and Microcontroller Interview Questions - Download as PDF File .pdf), Text File .txt) Microcontroller+interview+Questions+and+portal7.info Top Microcontroller Interview questions and answers asked in interviews. Download Microcontroller Interview Questions PDF.
A Flip-flop is a basic electronic circuit used for storing information in a digital machine. It is a bistable device. It means it has two stable states. It has one or more inputs and two complement outputs. It has four component - microprocessor, memory unit, input and output devices. Collection of such programs is called software.
Interrupt latency is a time taken to return from the interrupt service routine post handling a specific interrupt. Timers in embedded system are used in multiple ways Real Time Clock RTC for the system Initiating an event after a preset time delay Initiating an even after a comparison of preset times Capturing the count value in timer on an event Between two events finding the time interval Time slicing for various tasks Time division multiplexing Scheduling of various tasks in RTOS 12 Explain what is a Watchdog Timer?
A watchdog timer is an electronic device or electronic card that execute specific operation after certain time period if something goes wrong with an electronic system. Embedded systems require infinite loops for repeatedly processing or monitoring the state of the program.
Some of the commonly found errors in embedded systems are Damage of memory devices static discharges and transient current Address line malfunctioning due to a short in circuit Data lines malfunctioning Due to garbage or errors some memory locations being inaccessible in storage Inappropriate insertion of memory devices into the memory slots Wrong control signals 15 Explain what is semaphore?
A semaphore is an abstract datatype or variable that is used for controlling access, by multiple processes to a common resource in a concurrent system such as multiprogramming operating system. Mutexes Semaphores A mutex object enables one thread into a controlled section, forcing other threads which tries to gain access to that section to wait until the first thread has moved out from that section Semaphore allows multiple access to shared resources Mutex can only be released by thread which had acquired it A semaphore can be signaled from any other thread or process.
Mention what happens when recursion functions are declared inline? Recursion function can be used when you are aware of the number of recursive calls is not excessive. Inline functions property says whenever it will called, it will copy the complete definition of that function. A A cycle is, in reality, 12 pulses of the crystal.
That is to say, if an instruction takes one machine cycle to execute, it will take 12 pulses of the crystal to execute. Since we know the crystal is pulsing 11,, times per second and that one machine cycle is 12 pulses, we can calculate how many instruction cycles the can execute per second: Q Mention any one 32 bit microcontroller and explain the same.
A There are various microcontrollers which supports 32 bit architecture. One such microcontroller is from freescale.
Q Explain data types used in microcontroller programming, A One need to explain data types with their size of storage and range of values if asked specifically. Typical data types are bit, sbit, sfr, float, signed char,unsigned char, enum, signed int etc.
Q What is the difference between timer and counter of microcontroller? A Timer counts internal clock cycles while counter counts external events.
The most obvious characteristic of the Harvard Architecture is that it has physically separate signals and storage for code and data memory. It is possible to access program memory and data memory simultaneously. Typically, code or program memory is read-only and data memory is read-write.
Therefore, it is impossible for program contents to be modified by the program itself. The von Neumann Architecture is named after the mathematician and early computer scientist John von Neumann.
Von Neumann machines have shared signals and memory for code and data.
Thus, the program can be easily modified by itself since it is stored in read-write memory. The surprising fact is that this Microcontroller interview questions and answers post covers all the basic of the Microcontroller technology and you have to check out the FAQs of different components of Microcontroller too.
However, you will be asked with the questions in the interview related to the above mentioned questions. Preparing and understanding all the concept of Microcontroller technology will help you strengthen the other little information around the topic.
After preparing these interview questions, we recommend you to go for a mock interview before facing the real one. You can take the help of your friend or a Microcontroller expert to find the loop holes in your skills and knowledge.
Moreover, this will also allow you in practicing and improving the communication skill which plays a vital role in getting placed and grabbing high salaries.
Remember, in the interview, the company or the business or you can say the examiner often checks your basic knowledge of the subject. If your basics is covered and strengthened, you can have the job of your dream. The industry experts understand that if the foundation of the student is already made up, it is easy for the company to educate the employ towards advance skills.