Embedded C Programming

Embedded C Programming What is Embedded C programming and how is it different? 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How To Implement Static Variable In C? How To Implement Queue in C? How To Implement Circular Queue in C? What is Embedded C programming and how is it different? What is Embedded C programming and how is it different? Last updated on May 07,2020 5K Views Manthan Naik Bookmark What is Embedded C programming and how is it different? Cis a high-levelprogramming language intended for systemprogramming.Embedded Cis an extension that provides support for developing efficient programs forembeddeddevices. Yet, it is not a part of theC language. In this Embedded C programming article, we shall discuss the following topics.What is Embedded C ProgrammingDifference between C and Embedded CBasic Structure of Embedded C ProgramCommentsPre-processor directivesGlobal declarationLocal declarationMain function()What is Embedded C ProgrammingEmbedded C programming language is an extension to the traditional C programm ing language, that is used in embedded systems. The embedded C programming language uses the same syntax and semantics as the C programming language.The only extension in the Embedded C language from normal C Programming Language is the I/O Hardware Addressing, fixed-point arithmetic operations, accessing address spaces, etc.Now will move on to the Difference between C and Embedded C.Difference between C and Embedded C:C Programming LanguageEmbedded C Programming LanguageIn nature, it is a native developmentIn nature, It is cross-developmentIt is independent of hardware architectureIt is hardware dependentUsed for desktop applicationUsed for limited resources like RAM and ROMNow lets learn about the basic structure of Embedded C program.Basic Structure of Embedded C Program:The embedded C program has a structure similar to C programming.The five layers are:CommentsPre-processor directivesGlobal declarationLocal declarationMain function()The whole code follows this outline. Each code has a similar outline. Now let us learn about each of this layer in detail.Multiline Comments . . . . . Denoted using /*hellip;hellip;*/ Single Line Comments . . . . . Denoted using // Preprocessor Directives . . . . . #includehellip; or #define Global Variables . . . . . Accessible anywhere in the program Function Declarations . . . . . Declaring Function Main Function . . . . . Main Function, execution begins here { Local Variables . . . . . Variables confined to main function Function Calls . . . . . Calling other Functions Infinite Loop . . . . . Like while(1) or for(;;) Statements . . . . . hellip;. hellip;. } Function Definitions . . . . . Defining the Functions { Local Variables . . . . . Local Variables confined to this Function Statements . . . . . hellip;. hellip;. }Lets look into the Comment section.Comment Section:Comments are simple readable text, written in code to make it more understandable to the reader. Usually comments are written in // or /* */.Example: //Test programLets look into Preprocessor Directives Section.Preprocessor Directives Section:The Pre-Processor directives tell the compiler which files to look in to find the symbols that are not present in the program.For Example, in 8051 Keil compiler we use,#includereg51.hLets look into Global declaration Section.Global Declaration Section:This part of the code is the part where the global variables are declared. Also, the user-defined functions are declared in this part of the code. They can be accessed from anywhere.void delay (int);Lets look into Local declaration section.Local Declaration Section:These variables are declared in the respective functions and cannot be used outside the main function.Lets look into the Main function section.Main Function Section:Every C programs nee d to have the main function. So does an embedded C program. Each main function contains 2 parts. A declaration part and an Execution part. The declaration part is the part where all the variables are declared. The execution part begins with the curly brackets and ends with the curly close bracket. Both the declaration and execution part are inside the curly braces. void main(void) // Main Function { P1 = 0x00; while(1) { P1 = 0xFF; delay(1000); P1 = 0x00; delay(1000); } } Function Definition SectionIn this section, the function is defined.This is the basic structure of the embedded c program.With this, we come to an end of this Embedded C Programming article. I hope you have understood the basic structure.Now that you have understood the basics of Programming in C, check out thetrainingprovided by Edureka on many technologies like Java,Springand many more, a trusted online learning company with a network of more than 250,000 satisfied learners spread across the globeGot a question for us? 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