| DeltaOS下的CAN总线驱动及多通道通信调度 |
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| 引用本文： | 谭亮,吴晓,张凯龙,苏二峰.DeltaOS下的CAN总线驱动及多通道通信调度[J].计算机工程与应用,2013,49(3):65-68,73. |
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| 作者姓名： | 谭亮 吴晓 张凯龙 苏二峰 |
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| 作者单位： | 西北工业大学计算机学院,西安710072;陕西省嵌入式系统技术重点实验室,西安710072 |
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| 基金项目： | 国家自然科学基金，陕西省重大科技创新计划课题 |
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| 摘 要： | 分析了DeltaOS的设备驱动基本框架,设计实现了多通道PMC-CAN驱动程序。针对DeltaOS实时多任务的特点,基于看门狗定时器方法,有效简化了多任务环境下周期任务轮询程序的设计;设计了一种多通道中断处理的方法,提高了多通道数据传输效率及通道利用率;针对多个CAN通道的调度提出了一种基于动态调度表的调度方法;通过实验验证了CAN驱动的正确性及多通道调度的有效性。
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| 关 键 词： | DeltaOS 任务轮询 看门狗定时器 多通道调度 动态调度表 |
CAN communication driver and multi-channel communication scheduling based on DeltaOS |
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| TAN Liang
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WU Xiao
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ZHANG Kailong
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SU Erfeng.CAN communication driver and multi-channel communication scheduling based on DeltaOS[J].Computer Engineering and Applications,2013,49(3):65-68,73. |
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| Authors: | TAN Liang WU Xiao ZHANG Kailong SU Erfeng |
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| Affiliation: | 1,2.1.School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China 2.Shaanxi Key Laboratory of Embedded System Technology, Xi’an 710072, China |
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| Abstract: | This paper analyzes the basic framework of device driver based on DeltaOS, designs and implements multi-channel driver of PMC-CAN. In connection with the characteristics of real-time and multitask in DeltaOS, based on watchdog timer, this paper effectively simplifies the design of periodic task polling in the multitask environments. It also designs a method of processing multi-channel interrupt to improve the efficiency of multi-channel data transmission and channel utilization. Based on dynamic scheduling table it proposes a scheduling method for the system of multi channels of CAN. It verifies the correctness of the CAN driver and effectiveness of multi-channel’s scheduling through experiments. |
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| Keywords: | DeltaOS task polling watchdog timer multi-channel scheduling dynamic scheduling table |
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