嵌入式C编程：CCS编译器技术与应用

[en]

5星 · 超过95%的资源需积分: 9 121 浏览量更新于2024-07-21 收藏 27.3MB PDF 举报

身份认证购VIP最低享 7 折!

30元优惠券

"Newnes.Embedded C Programming.Techniques and Applications of C and PIC MCUS.2014" 这本书，《嵌入式C编程：C语言与PIC微控制器的应用技术》是针对CCS（Code Composer Studio）编译器的一本深度学习资料。作者Mark Siegesmund在书中详细介绍了使用C语言进行嵌入式系统开发的专业知识，特别是针对PIC微控制器的编程技巧和应用。CCS是德州仪器（TI）开发的一款集成开发环境，尤其适用于基于ARM和MSP430以及PIC微控制器的项目。书中可能涵盖了以下重要知识点： 1. **嵌入式C语言基础**：讲解了C语言在嵌入式系统中的特性和用法，包括基本语法、数据类型、控制结构、函数、指针等，并强调了这些概念在资源有限的嵌入式环境中的特殊考虑。 2. **PIC微控制器架构**：深入探讨了PIC微控制器的工作原理、寄存器配置、中断系统、时钟管理、I/O端口操作和内存管理等核心概念。 3. **CCS集成开发环境**：介绍了如何使用CCS进行项目创建、代码编写、编译、调试以及如何利用其强大的调试工具进行问题定位。 4. **硬件接口编程**：讨论了通过C语言控制各种外设，如ADC、DAC、UART、SPI、I2C等通信协议，以及如何进行中断驱动编程。 5. **实时操作系统（RTOS）**：如果涉及，可能会介绍如何在PIC微控制器上移植和使用RTOS，如FreeRTOS或uCOS，以实现多任务并发执行。 6. **优化技巧**：分享了针对嵌入式系统的代码优化策略，以提高性能和降低内存占用，这在资源受限的环境中尤为重要。 7. **实例与项目**：书中的例子和项目实践将帮助读者将理论知识应用于实际开发中，增强对C语言和PIC微控制器的理解。 8. **错误处理与调试**：详细讲解如何处理程序运行中的错误，以及如何利用CCS的调试功能进行有效的故障排查。 9. **安全与可靠性**：可能会涵盖确保代码安全性和可靠性的最佳实践，如防止溢出、电源管理、错误检测与恢复机制等。这本书不仅适合初学者入门，也对有经验的开发者提供了深入的洞见和实用技巧。通过系统阅读，读者可以掌握使用C语言和CCS进行PIC微控制器开发的全面技能，提升专业能力。

资源详情

资源推荐

Introduction

Microcontrollers are computers on a chip. When they power up they start running a pro-

gram from internal program memory, also called ROM for read only memory, or Flash.

Microcomputers are found in appliances, toys, automobiles, and computer peripherals, such

as a keyboard or mouse, and are ﬁnding their way in as support electronics for almost every-

thing electronic from battery chargers to RADAR systems.

The Microchip PIC

microcontrollers have become the most popular choice for new designs

based on their high speed, of up to 70 million instructions per second as of this writing; low

cost, some under $1; and large number of interfaces like USB, Ethernet, and analog signals.

The C programming language, originally developed by AT&T Labs by authors Brian

Kernighan and Dennis Ritchie, known as K&R C, became an international standard by ANSI

in 1989, known as C89. A new standard derived from C deﬁned the C++ language and was

released in 1998. C++ has some complex language elements that make it impractical for use

on a microcontroller as opposed to a desktop PC. C is the most commonly used language for

programming microcontrollers.

C is in a category of computer languages called high order languages. High order languages

use a tool called a compiler to convert the C text ﬁles to a machine readable ﬁle.

The ﬁrst part of this book emphasizes the C language. Previous experience with a program-

ming language will help but is not required. Formal deﬁnitions of the language elements are

used and all areas of the language that apply to microcontrollers are covered in detail. Starting

with Chapter 15, this book covers the PIC

microcontroller, its peripherals, and how to use

those peripherals from C in detail. Prior knowledge of basic electronics to interface to hard-

ware devices will help, but is not required to understand this book.

There are variations in the C language extensions between compiler vendors and between

microcontroller families. Throughout the book are indications where there may be compat-

ibility issues between compilers and/or processors. Each chapter will also supply hints for

good programming practices, including documentation. Exercises and quizzes are provided

2 Chapter 1

www.newnespress.com

/* */

Comments between

and

(can span multiple lines, but may not be nested)

Comments between

and end of line (one line only).

The compiler ignores all comments. Both styles are shown in the sample program.

Program Structure

C programs are made up of compilation units, sometimes called translation units. A compila-

tion unit is a set of ﬁles that are compiled together by a compiler. For most examples in this

book we will be using a single compilation unit. A compilation unit is made up of global data

and functions. A function is a callable group of code that in some other languages is referred

to as a procedure or subroutine. Functions are made up of local data accessible only to the

function and of statements within the function.

C Preprocessor Directives

An interesting feature of C is that it has what is referred to as a preprocessor. Think of the pre-

processor as a tool that goes through the code ﬁrst and makes some modiﬁcations to what is

actually compiled. Preprocessor directives start with a

and occupy the entire line. They will

be covered in more detail in Chapter 3. In the above example the

#include directive causes

whatever lines are in the ﬁle (e3.h) to appear at this spot in the code for the compilation.

For example, if you created a ﬁle named delay.inc and put in the ﬁle one line:

delay_ms(500);

then you could replace the two delay lines in the above program with #include <delay.inc

and the program would compile exactly the same. In the ﬁrst step of compilation the compiler

preprocessor would read the delay.inc ﬁle when it got to that line and replace the #include

with

delay_ms(500); where the #include were.

The preprocessor can be a powerful feature in C that can increase program readability, maxi-

mize code reuse, and signiﬁcantly help in program maintenance.

As we examine the sample program shown, you see the ﬁrst line is a preprocessor directive to

include the e3.h ﬁle. It is very common for the ﬁrst non-comment line in a program to include

a ﬁle with various project- and/or hardware-speciﬁc deﬁnitions. The .h extension (for header)

is frequently used for this kind of ﬁle. In our case all the declarations needed for the E3 hard-

ware are in this include ﬁle.

Functions

Next we ﬁnd a function deﬁnition for “main”. All programs must have exactly one function

named

main(). This is where the program begins execution. When referring to a function

C Overview and Program Structure 3

www.newnespress.com

name in this book we will follow the name with

()

so it is clear that it is a function name.

The void before the name indicates this function returns nothing and the void inside the

()

indicates this function gets nothing from the caller. The

{

and

}

are grouping symbols. All

functions start and end with these symbols.

Functions will be dealt with in detail in Chapter 7; however, to lay a foundation for what they

are, consider some examples of a function being used:

x=sin(y); sin is a function with one argument and a return value

x=sin(y*3.1415/180); the argument may be any expression

x=180*sin(y)/3.1415; the return value may be used in an expression.

Declarations

The “int i” is a data declaration for the variable named with the identiﬁer i. int indicates

the variable is an integer. In this case

i may only be used inside the main() function. If this

line was above the start of the function (outside the function) then

i could be accessed by

other functions. The range that a variable is accessible from is referred to as the variable

scope. Scope will be covered in more detail in Chapter 4.

Statements and Expressions

The

for

line is a statement. Statements are executed at run time. This particular statement has

three expressions within. Expressions will be covered in Chapter 5 and statements in Chapter 6.

The quick overview of the

for

statement is:

It executes the first expression once i=1

Repeats the following:

Tests the second expression and exits the loop if false i<=10

Executes the statement following the

)

The third expression is executed. i=i+1

In this example the four lines are executed 10 times with the variable i going from 1 to 10

and then, when 11, the loop stops because 11 <= 10 is false.

Expressions are some combination of constants, variables, operators, and function calls.

Expressions always have a resulting value. Some simple examples of an operator are

+ -*/

and the very special

In our case since we have four statements to execute in the

for

we need to group them

together with the

{

and

}

. This is called a compound statement. The braces may contain zero

or more statements. Without those, only the

output_high()

function would be called in the

loop 10 times. Then the other three lines would execute once afterwards.

剩余420页未读，继续阅读

shadage

粉丝: 0
资源: 7

嵌入式C编程：CCS编译器技术与应用

一个功能强大的软件，可以将smd游戏文件转换成bin格式

embedded c programming

NES转gba工具

闭环buck电路设计参考资料

08-React redux

C#中的数据库迁移是如何实现的

RS485数据收发程序示例

基于ssm的闲置图书分享平台系统设计与实现.docx

C#中的Lambda表达式：简化委托与表达式树

Web实验报告Web实验报告pdf

视频网站系统 基于Springboot和Mysql的视频网站系统代码 ，包括程序，中文注释，配置说明操作步骤

『人事流程图新』人事工作流程3774211768.doc

数据特征，数据特征，数据特征

续订劳动合同通知书.docx

『人事全景图』人力资源体系全景图.pptx

Mechanical是一个英文单词.docx

桂林旅游景区导游平台代码系统 Springboot桂林旅游景区导游平台，包括程序，中文注释，配置说明操作步骤

『人事流程图新』【人力资源SOP】51个人力资源管理工作流程图.ppt

基于ssm的学生网上请假系统设计与实现.docx

基于go-zero的云盘管理系统（CloudDisk）.zip

最新资源

视频网站系统基于Springboot和Mysql的视频网站系统代码，包括程序，中文注释，配置说明操作步骤