readme.txt

ucos2400移植的源码。从网上下载供大家分享。

Target board specifications
~~~~~~~~~~~~~~~~~~~~~~~~~~~

CPU : Samsung S3C2400 (ARM920T core)
ROM : HY29LV160 for internal boot ROM and HY29LV1024 for external boot ROM
RAM : Samsung K4S281632 16MB(2M*16bit*4banks) SDRAM * 2EA
Compiler : ARM SDT ver 2.51


The version of this port
~~~~~~~~~~~~~~~~~~~~~~~~

uC/OS-II ver 2.51 for S3C2400 ver 2.1

Staff
~~~~~

uC/OS-II ver 2.51 is ported by Lee Chae-Won in April 27th, 2003.
E-mail : [e-mail] ; [e-mail]
Homepage : http://user.chollian.net/~hebb/

Hardware & core firmware designer : Yoon Gwang-Yoon
E-mail : [e-mail]
Homepage : ARM STUDY GROUP (http://arm.cim.co.kr)

Description
~~~~~~~~~~~

This port is made for the purpose of studying and understanding the ARM system
in ARM STUDY GROUP (http://arm.cim.co.kr).
In some parts of important core routines, I refered to the sources of EP-7209 
ports by Mr. Kim Hyo-jun ([e-mail]).


Install guide
~~~~~~~~~~~~~

Unzip all the stuffs in any folder. For example,

C:\UCOS251_S3C2400\
   common.h
   hwdefs.inc
   includes.h
   interrupt.c
   main.c
   misc.c
   mmu.s
   os_cfg.h
   os_cpu.h
   os_cpu_a.s
   os_cpu_c.c
   reg_define.h
   serial_poll.c
   serial_poll.h
   timer.c
   UCOS251_S3C2400.apj
   readme.txt - this file
   
C:\UCOS251_S3C2400\Release\
   All object files with ELF file(*.axf) and Plain binary file(*.rom)
   
C:\UCOS251_S3C2400\Source\
   uC/OS-II ver 2.51 core files. Refer to note.txt.
   

Revision History
~~~~~~~~~~~~~~~~

2003. 4. 15. : Preliminary version completed. 
               Toggle 2 LEDs.

2003. 4. 17. : Preliminary version 0.2. 
               Adjust system clock speed to 102.6MHz for the sake of stability.
               
2003. 4. 20. : Release version 1.0 completed.
               UART polling routines are attached.

2003. 4. 21. : Release version 1.1 completed.
               IRQ_Handler is revised in order to prevent interrupt nesting while
               processing context switching in the IRQ Handler.

2003. 4. 24. : Release version 1.2 completed.
               Path of some files in "includes.h" are revised.
               Comments of misc.c is changed from 112.5M to 102.6M.

2003. 4. 27. : Release version 2.0 completed.
               uC/OS-II ver 2.51 is ported.
               Path name is changed to \UCOS251_S3C2400\
               TimerClock value in timer.c and timer.h is changed to 15951.5 for 
               the sake of accuracy.
               OS_TICKS_PER_SEC value in OS_CFG.H is set to 200 

2003. 4. 30. : Release version 2.1 for high speed operation completed.
               PLL is set as FCLK = 150MHz, HCLK = 75MHz, PCLK = 75MHz
               (cf : 150MHz is the maximum value described in the specification 
               of S3C2400)