Automotive Robotics (India) Embedded Developer Interview Questions and Answers

Q1. Related to domain related questions.
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Q1. Related to CAN Bus protocol.
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Q1. I am not shortlisted .
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It is hard and they recorded all live on camera and time is to less for aptitude and technical questions are also included in that

Q1. Can we call ISR from ISR
Ans. 
Yes, it is possible to call an ISR from another ISR.
• Calling an ISR from another ISR is known as nesting ISRs.

• It is important to carefully manage the nesting depth to avoid stack overflow.

• Nested ISRs can introduce complexity and potential issues, so it should be used judiciously.
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Q2. Explain your project
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Q1. 1. What are the storage classes in C?
Ans. 
Storage classes in C define the scope and lifetime of variables.
• Auto: Default storage class for local variables

• Register: Requests a variable to be stored in a register for faster access

• Static: Preserves the value of a variable between function calls

• Extern: Allows access to a variable declared in another file

• Thread Local Storage (TLS): Provides each thread with its own copy of a variable
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Q2. 2.What are preprocessor directives?
Ans. 
Preprocessor directives are commands used by the preprocessor to perform tasks before the actual compilation process begins.
• Preprocessor directives start with a # symbol.

• They are used to include header files, define constants, and perform conditional compilation.

• Examples include #include, #define, #ifdef, #ifndef, #endif, #pragma, etc.
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Q3. 3.Write a macro code to set the bit.
Ans. 
Macro code to set a bit in embedded software
• Define a macro using bitwise OR operator to set a specific bit in a register

• Example: #define SET_BIT(reg, bit) ((reg) |= (1 << (bit)))

• Call the macro with the register and bit number as arguments
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Q4. 4.Explain project and project related questions.
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Q5. 5.Why 8 bit microprocessor is called 8 bit microprocessor.
Ans. 
8 bit microprocessor is called so because it processes data in 8 bit chunks.
• 8 bit microprocessor processes data in 8 bit chunks at a time

• It can handle data in 8 bit binary format

• Examples include Intel 8080, Zilog Z80, and MOS Technology 6502
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Q1. Brief Introduction
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Q2. Details about family background
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Q3. Will you be able to join us within week?
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Q4. What are your strengths and weakness.
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Q1. Questions will be dependants upon designation, questions will be like basics & intermediate level only Embedded C programming based?
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Q2. Projects Controller based questions?
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Q1. About yourself, strength & weakness with examples, etc
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