一、新建工程

1.新建一個(gè)ARM Executable Image

2.創(chuàng)建uCOS_II文件夾，創(chuàng)建兩個(gè)子文件夾，分別為ARM、SOURCE

ARM存放和平臺(tái)相關(guān)的文件（"OS_CPU.H" "Os_cpu_a.s" "Os_cpu_c.c" ）

SOURCE下存入和平臺(tái)無(wú)關(guān)的文件（"ucos_ii.h" "os_cfg.h" "os_core.c" "os_flag.c" "os_mbox.c" "os_mem.c" "os_mutex.c" "os_q.c" "os_sem.c" "os_task.c" "os_time.c" "os_tmr.c" ）

3.創(chuàng)建一個(gè)S3C2440文件夾，創(chuàng)建兩個(gè)子文件夾，分別為INC、SRC

INC存放S3C2440相關(guān)頭文件（"2440addr.h" "2440lib.h" "2440slib.h" "config.h" "Def1.h" "lcd.h" "mmu.h" "Option.h" "Target.h" "Timer.h" ）

SRC存放S3C2440相關(guān)源文件（"Timer.c" "2440init.s" "2440lib.c" "2440slib.s" "Font_Libs.c" "iphone.c" "lcd.c" "mmu.c" "nand.c" "Target.c" ）

4.創(chuàng)建一個(gè)app文件夾（app_cfg.h、main.c、Printf.c、Printf.h）

二、工程設(shè)置Edit->DebugRel Settings下

1.Target->Target Settings,Post-linker:ARM fromELF

2.Target->Access Paths選中Always Search User Paths（ucos_ii部分文件采用#include <>包涵，不修改這里找不到文件）

3.Language Settings下ARM Assembler、ARM C Compliler、ARM C++ Complier處理器設(shè)置成ARM920T

4.Language Settings下ARM C Compliler下Errors下去掉Implicit pointer c,ARM C Compliler下Warnings下去掉Unused declaration（-O1 -g+ -cpu ARM920T -Wx -Ec）

5.ARM Linker下,Output下RO Base設(shè)置成0x30000000,Options下Image entry point設(shè)置成0x30000000,Layout下Place at beginning of image下的Object/Symbol設(shè)置成2440init.o,Section設(shè)置成Init，Listings下選勾Image map、List file設(shè)置list.txt，勾上Sizes、Totals、Unused、Veneers

6.ARM fromELF下Output file name下填寫輸出的二進(jìn)制

三、移植文件的修改

對(duì)OS_CPU.H的修改：

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/*   

*********************************************************************************************************  

*                                              ARM  

*  

* Method #1:  NOT IMPLEMENTED  

*             Disable/Enable interrupts using simple instructions.  After critical section, interrupts  

*             will be enabled even if they were disabled before entering the critical section.  

*               

* Method #2:  NOT IMPLEMENTED  

*             Disable/Enable interrupts by preserving the state of interrupts.  In other words, if   

*             interrupts were disabled before entering the critical section, they will be disabled when  

*             leaving the critical section.  

*             NOT IMPLEMENTED  

*  

* Method #3:  Disable/Enable interrupts by preserving the state of interrupts.  Generally speaking you  

*             would store the state of the interrupt disable flag in the local variable 'cpu_sr' and then  

*             disable interrupts.  'cpu_sr' is allocated in all of uC/OS-II's functions that need to   

*             disable interrupts.  You would restore the interrupt disable state by copying back 'cpu_sr'  

*             into the CPU's status register.  This is the prefered method to disable interrupts.  

*********************************************************************************************************  

*/  

#define  OS_CRITICAL_METHOD    3  

#if      OS_CRITICAL_METHOD == 3  

#define  OS_ENTER_CRITICAL()  (cpu_sr = OSCPUSaveSR())  /* Disable interrupts                        */  

#define  OS_EXIT_CRITICAL()   (OSCPURestoreSR(cpu_sr))  /* Restore  interrupts                       */  

#endif  

/*  

*********************************************************************************************************  

*                                         ARM Miscellaneous  

*********************************************************************************************************  

*/  

#define  OS_STK_GROWTH        1                       /* Stack grows from HIGH to LOW memory on ARM    */  

#define  OS_TASK_SW()         OSCtxSw()  

對(duì)Os_cpu_c.c的修改：

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/*  

*********************************************************************************************************  

*                                               uC/OS-II  

*                                        The Real-Time Kernel  

*  

*                           (c) Copyright 1992-2003, Micrium, Inc., Weston, FL  

*                                          All Rights Reserved  

*  

*                                               ARM9 Port  

*  

* File : OS_CPU_C.C  

*********************************************************************************************************  

*/  

//#define  OS_CPU_GLOBALS  

#include "ucos_ii.h"  

/*  

*********************************************************************************************************  

*                                        INITIALIZE A TASK'S STACK  

*  

* Description: This function is called by either OSTaskCreate() or OSTaskCreateExt() to initialize the  

*              stack frame of the task being created.  This function is highly processor specific.  

*  

* Arguments  : task          is a pointer to the task code  

*  

*              p_arg         is a pointer to a user supplied data area that will be passed to the task  

*                            when the task first executes.  

*  

*              ptos          is a pointer to the top of stack.  It is assumed that 'ptos' points to  

*                            a 'free' entry on the task stack.  If OS_STK_GROWTH is set to 1 then   

*                            'ptos' will contain the HIGHEST valid address of the stack.  Similarly, if  

*                            OS_STK_GROWTH is set to 0, the 'ptos' will contains the LOWEST valid address  

*                            of the stack.  

*  

*              opt           specifies options that can be used to alter the behavior of OSTaskStkInit().  

*                            (see uCOS_II.H for OS_TASK_OPT_???).  

*  

* Returns    : Always returns the location of the new top-of-stack' once the processor registers have  

*              been placed on the stack in the proper order.  

*  

* Note(s)    : 1) Interrupts are enabled when your task starts executing.   

*              2) All tasks run in SVC mode.  

*********************************************************************************************************  

*/  

OS_STK *OSTaskStkInit (void (*task)(void *pd), void *p_arg, OS_STK *ptos, INT16U opt)  

{  

    OS_STK *stk;  

    optopt      = opt;                 /* 'opt' is not used, prevent warning                      */  

    stk      = ptos;                /* Load stack pointer                                      */