重型拖拉机控制器的CCP底层驱动与上位机设计  

CCP Bottom Drive of Heavy Tractor Controller with Upper Computer Design

作　　者：谭文阳 李军伟[1] 朱青松 姜世腾 Tan Wengyang;Li Junwei;Zhu Qingsong;Jiang Shiteng(Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049

出　　处：《现代农业装备》2021年第2期44-50,共7页Modern Agricultural Equipment

基　　金：国家重点研发计划项目(2016YFD0701101)。

摘　　要：针对重型拖拉机控制器的在线标定测量问题,以32位单片机MPC5744P为例,开发了控制器局域网络标定协议(controller area network calibration protocol,简称CCP)的底层驱动程序。依据CCP的需求设计了FlexCAN模块、PIT模块以及Flash模块的底层驱动程序。为实现对变量的在线标定,利用Python的外部工具PyQt5设计了相应的上位机。为验证所设计系统的性能,通过上位机对MPC5744P单片机进行了变量的在线标定测量测试。试验结果表明,设计的CCP底层驱动能够通过与上位机的交互准确实现变量的在线标定测量,符合设计要求。Taking MPC5744 P as an example,the low-level driver of Controller Area Network Calibration Protocol(CCP)was developed for online calibration measurement of heavy tractor controller.According to CCP’s requirement,FlexCAN module,PIT module and Flash module’s underlying driver are developed.In order to calibrate the program online,a corresponding upper computer is designed by using Python external tool PyQt5.In order to verify the performance of the designed system,MPC5744 P microcontroller was used to calibrate and measure the variables online.The experimental results show that the designed CCP can accurately achieve the online calibration and measurement of variables through the interaction with the upper computer,which meets the design requirements.

关 键 词：CCP 重型拖拉机控制器 Flash驱动 FlexCAN模块 上位机设计 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]