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基于STM32的μC/OS_Ⅱ与μC/GUI整合移植与显示优化
Display optimization and transplantation of μC/OS_Ⅱ and μC/GUI for STM32
- 液晶与显示 2014年29卷第6期 页码：950-956
- 作者机构：
河南理工大学 计算机科学与技术学院, 河南 焦作 454000
- 作者简介：
[ "杨立身（1959-），男，河南焦作人，教授，硕士生导师，主要从事物联网工程、计算机网络等方面的研究。E-mail：hpuyangls@qq.com" ]
[ "张安伟（1987-），男，河南开封人，硕士研究生，主要从事物联网嵌入式方面的研究。E-mail：zawlxj@126.com" ]
[ "王磊（1977-），男，辽宁朝阳人，博士，副教授，主要从事嵌入式系统、无线传感网络等方面的研究。" ]
[ "刘康（1988-），男，河南新乡人，硕士研究生，主要从事计算机网络管理方面的研究。" ]
- 基金信息：河南省重点科技攻关项目（No.122102210117，No.112102210004）()
DOI：10.3788/YJYXS20142906.0950
中图分类号： TP316.2收稿日期：2014-04-22，
修回日期：2014-06-10，
网络出版日期：2014-06-06，
纸质出版日期：2014-12-05
- 稿件说明：
移动端阅览
杨立身, 张安伟, 王磊, 刘康. 基于STM32的μC/OS_Ⅱ与μC/GUI整合移植与显示优化[J]. 液晶与显示, 2014,29(6): 950-956
YANG Li-shen, ZHANG An-wei, WANG Lei, LIU Kang. Display optimization and transplantation of μC/OS_Ⅱ and μC/GUI for STM32[J]. , 2014,29(6): 950-956
杨立身, 张安伟, 王磊, 刘康. 基于STM32的μC/OS_Ⅱ与μC/GUI整合移植与显示优化[J]. 液晶与显示, 2014,29(6): 950-956 DOI： 10.3788/YJYXS20142906.0950.
YANG Li-shen, ZHANG An-wei, WANG Lei, LIU Kang. Display optimization and transplantation of μC/OS_Ⅱ and μC/GUI for STM32[J]. , 2014,29(6): 950-956 DOI： 10.3788/YJYXS20142906.0950.
摘要
为了创建一个高效、直观、支持多任务的嵌入式图像开发平台，建立了基于C/OS_Ⅱ、C/GUI、STM32、ILI9320液晶屏的嵌入式实验环境，对C/OS_Ⅱ和C/GUI的整合移植方法进行研究，并针对C/GUI的中文支持欠缺和屏幕刷新率低等不足进行优化。研究了C/OS_Ⅱ、C/GUI的组织架构，针对C/OS_Ⅱ与CPU任务切换密切相关的文件进行改写，同时在C/OS_Ⅱ成功移植的基础上对C/GUI进行进一步的移植操作，包括修改与C/OS_Ⅱ相关的文件，改写C/GUI底层与LCD驱动密切联系的函数。在C/GUI成功移植的基础上对其字库文件进行改写，加入中文字库；对C/GUI的画点、画线、矩形填充函数进行修改，提高液晶屏的屏幕刷新效率。实验结果表明，所创建的4个任务切换正常，中文正常显示，同时像素填充率由之前的996 080/s上升到优化后的1 629 060/s。C/OS_Ⅱ与C/GUI能正常地协同工作，优化带来了C/GUI性能的提升。
Abstract
In order to create an efficient
intuitionistic and multi-mission embedded development platform
the embedded experimental environment was designed based on the C/OS_Ⅱ
C/GUI
STM32 MCU and ILI9320 LCD. Research was done to explore the migration method of the C/OS_Ⅱ and C/GUI and to optimize the C/GUI on the lack of the Chinese and low rate of the screen refresh.The organizational structure of the C/OS_Ⅱ and C/GUI were studied
and the files that were closely associated with stm32 mcu were rewritten. At the same time
the operation of the C/GUI transplantation was done based on the success of the transplantation of the C/OS_Ⅱ including the modification of the files related to the C/OS_Ⅱ and the adaptation of the C/GUI bottom-driven functions. And Chinese font library was added to the system based on the successful transplantation of the C/GUI.The C/GUI functions of drawing pixel
line and rectangle were rewritten to increase the screen refresh rate. The experimental results show that the four created tasks run regular services
and the Chinese character displayed normally. The screen refresh rate increased from 996 080 to 1 629 060 pixel/s. The C/OS_Ⅱ and C/GUI worked cooperatively and the optimization of the C/GUI functions improved the screen's performance.
关键词
Keywords
references
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