基于Cortex-M4的中子发生器控制台主控板的设计  

Design of main control board of neutron generator console based on Cortex-M4

作　　者：张超 姜玉凯 高丽锋 乔双[1] ZHANG Chao;JIANG Yukai;GAO Lifeng;QIAO Shuang(School of Physics,Northeast Normal University,Changchun 130024,China)

机构地区：[1]东北师范大学物理学院,吉林长春130024

出　　处：《电子设计工程》2023年第8期1-4,共4页Electronic Design Engineering

基　　金：国家自然科学基金(12105040,11905028);吉林省科技厅青年成长科技计划项目(20210508027RQ);吉林省教育厅科学技术研究规划项目(JJKH20211277KJ)。

摘　　要：中子发生器控制台是保障中子发生器稳定、可靠、安全运行的关键。根据中子发生器控制台性能的需求,提出了一款基于Cortex-M4的中子发生器控制台主控板的实现方案。硬件以STM32F407ZGT6单片机为核心,设计了供电电路、PWM驱动电路和延时同步电路。软件采用FreeRTOS实时操作系统,具体划分成五个任务,并确定了优先级,通过Modbus协议与上位机进行通信,使软件系统流程变得简洁流畅。通过工业现场测试,中子产额波动不大于2%,满足用户需求。The neutron generator console is the key to ensure the stable,reliable and safe operation of the neutron generator.According to the performance requirements of neutron generator console,an implem⁃entation scheme of neutron generator console main control board based on Cortex-M4 is provided.In terms of hardware,taking STM32F407ZGT6 single chip microcomputer as the core,the power supply circuit,PWM driving circuit and delay synchronization circuit are designed.FreeRTOS real⁃time operating system is adopted in the software,which is divided into five tasks,and the priority is determined.It communicates with the upper computer through Modbus protocol to make the software system process simple and smooth.Through the industrial field test,the fluctuation of neutron yield is no more than 2%,meeting the needs of users.

关 键 词：中子发生器 STM32 FREERTOS MODBUS 

分 类 号：TN919[电子电信—通信与信息系统]