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Embedded C Assessment

This Embedded C test evaluates candidates' proficiency in Embedded C and Greedy Algorithm, essential for roles like Embedded Systems Architect and Microcontroller Programmer. It assesses problem-solving skills and understanding of embedded systems, ensuring candidates can effectively design and implement solutions.

Proficiency Level
Beginner-Expert
Experience
0-8 years
Duration
50 mins
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Subject Matter Expert
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Use Case

  • Evaluates understanding of microcontroller peripherals and the reg51.h library.
  • Assesses bit manipulation, program execution, and UART communication skills.
  • Tests knowledge of multithreading, exception handling, and delay functions.
  • Identifies top talent through practical coding involving binary numbers and arrays.

Skills Covered

Embedded C
Greedy Algorithm

About

Embedded C Assessment

This Embedded C test is designed to assess the proficiency of candidates in Embedded C and Greedy Algorithm, crucial for roles such as Embedded Systems Architect and Microcontroller Programmer. The test evaluates the candidate's ability to apply these skills in real-world scenarios, focusing on problem-solving and system design. It ensures that candidates possess the necessary technical knowledge and practical experience to excel in designing and implementing efficient embedded systems solutions. The assessment is tailored to identify individuals who can contribute effectively to projects requiring advanced embedded systems expertise.

Target Audience

This assessment is ideal for evaluating candidates for roles such as Embedded Systems Architect and Microcontroller Programmer.

Prerequisites
  • Strong understanding of Embedded C programming language
  • Familiarity with Greedy Algorithm concepts
  • Experience with microcontroller programming
  • Knowledge of embedded systems architecture
  • Ability to design and implement embedded solutions
  • Problem-solving skills in embedded environments
  • Understanding of real-time operating systems
Test Overview
Duration
50 mins
Questions
16
Passing Score
70%

Questions

Balanced Numbers
Array Manipulation
Array Manipulation
Binary Numbers
Data Structures and Algorithms
L3
String Manipulation
What this question evaluates
This question tests the candidate's skills in working with binary numbers, string manipulation, and understanding of valid parenthesis strings. It also assesses the candidate's ability to implement and optimize queries in an array.
Type:
Programming
Difficulty:
Medium
Time:
30 mins
Attempts:
100+
Success Rate:
70.01%
Blinking an LED
Embedded C
Embedded C
L3
delays
reg51.h
What this question evaluates
This question tests the candidate's understanding of microcontroller programming and the concept of delays. It requires knowledge of the specific microcontroller library and how to use delay functions to control the timing of the LED blink. The candidate must be able to calculate the required delay time based on the desired frequency.
Type:
Programming
Difficulty:
Hard
Time:
1.25 mins
Attempts:
100+
Success Rate:
70.01%
Delay functions in 8051
8051
8051
Embedded C
L2
reg51.h
What this question evaluates
This question tests the candidate's knowledge of programming for microcontrollers, specifically in relation to generating a delay using timers and delay functions. The candidate should be familiar with the functions provided in the reg51.h library and be able to select the correct one for the given scenario.
Type:
Programming
Difficulty:
Hard
Time:
1.25 mins
Attempts:
100+
Success Rate:
70.01%
Using reg51.h in embedded C programs
Embedded C
Embedded C
L1
reg51.h
What this question evaluates
This question evaluates the candidate's familiarity with embedded C programming and specifically, understanding the purpose and functionality of the reg51.h header file. It requires knowledge of embedded systems, microcontroller peripherals, and the ability to define new data types.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Exception Classification
Debugging
Debugging
Exception Handling
Fault Analysis
Interrupt Request (IRQ) Management
Linux on embedded systems
What this question evaluates
This question assesses the candidate's understanding of different types of exceptions in embedded programming and their categorization as TRAP, FAULT, or ABORT.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Enabling and configuring interrupts
8051 microcontroller
8051 microcontroller
Configuration
Interrupts
Register knowledge
Special function registers
What this question evaluates
This question evaluates the candidate's knowledge of 8051 microcontroller's special function registers and their role in managing interrupts.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Reading value of an SFR
8051 Microcontroller
8051 Microcontroller
C Programming
Function Calls
Header Files
Special Function Registers (SFRs)
What this question evaluates
This question evaluates the candidate's knowledge of SFR access and manipulation in the reg51.h header file, with an emphasis on understanding the proper function to use.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Running RRC instructions
Embedded C
Embedded C
L2
RRC
What this question evaluates
This question evaluates the candidate's understanding of the RRC instruction and its effect on binary numbers. It requires knowledge of binary number representation and the concept of right shift to determine the value of A after the second RRC instruction.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
The EA bit
External memory access
External memory access
Interrupt handling
Microcontroller operation
Registers implementation
UART communication
What this question evaluates
This question evaluates the candidate's knowledge of microcontroller system registers, specifically the purpose of a specific bit in a specific register.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Declaring variables
Embedded C
Embedded C
L2
Variables
What this question evaluates
This question evaluates the candidate's understanding of embedded C programming in the context of 8051 microcontrollers. It tests their knowledge of bit manipulation and the use of special function registers (SFRs). The candidate must determine the behavior of a declared variable in relation to a specific SFR pin and the impact on the complexity of the program.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Executing a microcontroller program
Memory Allocation
Memory Allocation
Program Execution
RAM Management
Static Variables
Variable Types
What this question evaluates
This question assesses the candidate's understanding of variable types and their memory allocation in microcontroller programming, with a focus on variables that can be retained in RAM locations through the program execution.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Sending and receiving characters over UART
C Programming
C Programming
Conditional Statements
Function Implementation
Microcontrollers
UART Communication
What this question evaluates
This question evaluates the candidate's comprehension of microcontroller programming and UART communication, specifically testing their understanding of data transmission, reception, and conditional statements.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Working with threads
Atomic Operations
Atomic Operations
Concurrency
Multithreading
Race Conditions
Shared Variables
What this question evaluates
This question evaluates the candidate's knowledge of multithreading, specifically in understanding how simultaneous operations on a shared variable can lead to unexpected outcomes.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
8051 Program Execution
8051 Microcontroller Knowledge
8051 Microcontroller Knowledge
Bit Manipulation
C++ programming
Error Prediction
Loop Control Structures
What this question evaluates
This question evaluates the candidate's understanding of 8051 microcontroller programming primarily focusing on bit manipulation and program flow control. In particular, it assesses their ability to predict the outcome of an execution of given 8051 program.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
The reg51.h header
Embedded C
Embedded C
L1
reg51.h
What this question evaluates
This question evaluates the candidate's familiarity with programming languages and their corresponding header files. It requires understanding of different programming languages and their respective header files.
Type:
Programming
Difficulty:
Easy
Time:
0.75 mins
Attempts:
100+
Success Rate:
70.01%
Peripherals controlled using reg51.h
Controls
Controls
Embedded C
L1
reg51.h
What this question evaluates
This question evaluates the candidate's understanding of the reg51.h library and its usage in controlling peripherals. It requires knowledge of microcontroller programming and the specific peripherals commonly controlled using the reg51.h library.
Type:
Programming
Difficulty:
Easy
Time:
0.75 mins
Attempts:
100+
Success Rate:
70.01%
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Dashboard mockup
Hiroshi Tanaka
Candidate
Passed
85%
AI Summary
Skills Performance
Score
Embedded C
87%
Greedy Algorithm
80%
85%
82%
Areas of Improvement
Review
Practice
Greedy Algorithm
Skill Assessment
Detailed evaluation of technical skills and problem-solving abilities.
AI Analysis
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