This article is a continuation of the series on “Embedded Sensor – ADXL345” and carries the discussion on Size, Functional Diagram, Pin Configuration, Application, Features and Benefits, ADXL345 Interface accelerometer, and Projects with this accelerometer. This sensor from Analog Devices
Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface.
SPI is a synchronous serial communication protocol. Transitioning to potential interview questions related to SPI, here are some topics you might encounter:
We collected frequently asked interview questions about CAN for you:
Here are the frequently asked 50+ Interview Questions about I2C
“In an interview, questions are the bridges between a candidate’s experiences and an employer’s expectations. They pave the way for understanding, insight, and the journey towards finding the perfect professional match. Before entering into UART interview questions, it is suggested to go through the UART protocol tutorial at least once. UART, or Universal Asynchronous Receiver-Transmitter, is a communication protocol used for serial communication between devices. It involves the transmission of data between devices bit by bit, without a shared clock signal.
UART is commonly employed in various applications, serving functions such as connecting microcontrollers to other peripherals, facilitating communication between embedded systems, and interfacing with sensors and other hardware components. Moreover, its versatility extends across a spectrum of use cases. Additionally, this adaptability positions UART as an integral component in diverse fields, showcasing its significance in fostering seamless communication within a wide range of electronic systems
The protocol defines the format of the data being sent, including start and stop bits, data bits, and optional parity for error checking. Additionally, UART provides a simple and versatile method for devices to exchange information serially. Moreover, this inherent flexibility and ease of implementation make it a widely adopted communication standard in various applications, ranging from microcontroller communication to data logging and industrial automation.
Participating in a C quiz can offer several benefits for individuals looking to improve their programming skills and knowledge of the C programming language. Here are some potential advantages:
Participating in a C quiz can offer several benefits for individuals looking to improve their programming skills and knowledge of the C programming language. Here are some potential advantages:
Participating in a C quiz can offer several benefits for individuals looking to improve their programming skills and knowledge of the C programming language. Here are some potential advantages:
Participating in a C quiz can offer several benefits for individuals looking to improve their programming skills and knowledge of the C programming language. Here are some potential advantages:
Participating in a C quiz can offer several benefits for individuals looking to improve their programming skills and knowledge of the C programming language. Here are some potential advantages:
Little and Big Endian are two different byte orderings used to represent multibyte data types, such as integers, in computer memory.
Pre-Request to read this first: What is Little and Big Endian in System
The choice between Both is crucial when data is transferred between systems with different byte orderings. Network protocols and file formats often specify the byte order to ensure compatibility between systems. Many modern architectures, especially those based on x86 and x86-64, use Little-Endian by default.
“Little Endian and Big Endian” are two different ways of storing multi-byte data types like integers, floating-point numbers, etc., in computer memory.
The architecture of the processor determines the choice between these two types. Little type is commonly used in x86 and x86-64 architectures, while Big type may be used in some older architectures and network protocols. The endianness of a system can affect data interchange between systems with different endianness.
To illustrate this, let’s consider a 4-byte integer 0x12345678:
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In this type of system, the lowest memory address stores the most significant byte (referred to as the “big end”) of a multi-byte data type, while subsequent bytes store in decreasing order of significance. That is, the most significant byte comes first.
In this type, it would be stored as 12 34 56 78 in memory, with the most significant byte 12 stored at the lowest memory address.
In a Little type system, multi-byte data types store the least significant byte (referred to as the “little end”) at the lowest memory address, with subsequent bytes arranged in increasing order of significance. That is, the least significant byte comes first.
In Little Type, it would be stored as 78 56 34 12 in memory, with the least significant byte 78 stored at the lowest memory address.
Lets assume the value 0x01234567 (4Byte Data) will be going to store in Memory.
The below Image Link
Lets assume the value 0xFFAA5500 (4Byte Data) will be going to store in address from 4000 to 40003.
Little Type
| Address | Data |
|---|---|
| 4003 | FF |
| 4002 | AA |
| 4001 | 55 |
| 4000 | 00 |
Big Type
| Address | Data |
|---|---|
| 4003 | 00 |
| 4002 | 55 |
| 4001 | AA |
| 4000 | FF |
Let’s assume the value 0x6573A429 (4Byte Data) will be going to store in a 32-bit machine address from 20008 to 20000B.
| Address | Little Type | Big Endian Type |
|---|---|---|
| 20008 | 65 | 65 |
| 20009 | 73 | 73 |
| 2000A | A4 | A4 |
| 2000B | 65 | 29 |
Certainly! Here’s a table summarizing the advantages and disadvantages of Little Type and Big Type:
| Aspect | Little Endian | Big Endian |
|---|---|---|
| Advantages | ||
| Efficiency | Efficient memory access due to direct access to least significant byte | Human-readable representation aligning with natural digit order |
| Conversion Ease | Simplified byte swapping operations for data interchange | Consistency with some network protocols and file formats |
| Compatibility | ||
| Disadvantages | ||
| Compatibility | Potential compatibility issues when interacting with Big Endian systems | Byte swapping overhead for data interchange with Little Endian systems |
| Memory Access | Less efficient memory access due to potential byte swapping |
C Example -In programming, swapping values is a fundamental operation that can find use in various applications across different domains.
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Database Management:
Matrix Operations:
Sorting Algorithms:
Data Analysis and Manipulation:
Graphics and Visualization:
Parallel Processing:
Encryption and Compression:
Swapping Two Numbers (Folder)
In this “C Examples Addition” example, we’ll explore a simple C program that demonstrates addition. Addition is one of the fundamental arithmetic operations, and understanding how to perform it in C can be useful for building more complex programs.
Our program will prompt the user to enter two integers, then it will add them together and display the result. We’ll achieve this using basic input/output functions (printf() and scanf()) for user interaction and a simple loop to perform the addition.
Let’s dive into the code and understand how it works!
Time delay is necessary for some cases in programming. for example, if you wanna print some string with some delay or wanna write some value in file frequently with some delay or need to check the excel file value with some delay like many use cases. To make a delay in application execution, we have two options like can write own custom user to define a function as well as can use some pre-defined library functions in C. In many ways, users can write the time delay functions like using for loop, while loop, do-while loop as well as a separate function in all. Here will discuss about C Examples Time Delay.
Here below are many C Example Hello World codes that are available related to Hello World if you have any doubts please post in the comment section. The “Hello World” example in the C programming language is often the first program beginners encounter when learning to code. It’s a simple program that prints “Hello, World!” to the screen. This program serves as a basic introduction to programming syntax and structure in C.
This “Hello world” C Example is one of the good in anything startup. Here we are going to print the "ArunEworld" string in the console.
For the below code, you should know the following
# preprocessor command.
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