c语言开发嵌入式web软件,7 用C语言开发嵌入式应用软件.pdf

“The C Programming Language” (1988)

• Developed by Dennis Ritchie in Bell Lab for Unix

on PDP-11

Program with Cross C Compiler • “The C Programming Language 2nd Ed” (1988)

(for S12) Kernighan &Ritchie

• The ANSI C Standard

Beibei Shao

– Defined the Syntax and Semantics Standard

– Defined the Standard C library

I/O in Cross C for Embedded System

• I/O is not the part of ANSI C

“Hello World!”

• I/O can be part of OS

• For an application, only write Hardware

Independent Part with Cross C.

• Because normally no file sys in an Embedded

System, I/Os can be treated as tasks

What Special? (1)

Cross C Compiler for Embedded? What Special? (2)

Cross C Compiler for Embedded?