DeltaOS下的CAN总线驱动及多通道通信调度  

CAN communication driver and multi-channel communication scheduling based on DeltaOS

作　　者：谭亮[1,2] 吴晓[1,2] 张凯龙[1,2] 苏二峰[1,2] 

机构地区：[1]西北工业大学计算机学院,西安710072 [2]陕西省嵌入式系统技术重点实验室,西安710072

出　　处：《计算机工程与应用》2013年第3期65-68,73,共5页Computer Engineering and Applications

基　　金：国家自然科学基金(No.61103004);陕西省重大科技创新计划课题(No.2010ZDKG-83)

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。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.

关 键 词：DELTAOS 任务轮询 看门狗定时器 多通道调度 动态调度表 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]