基于dsPIC30F的BootLoader设计  

Design of BootLoader base on dsPIC30F

作　　者：雒拓 程威 陈博凯 杜浪东 Luo Tuo;Cheng Wei;Chen Bokai;Du Langdong(Shaanxi Heavy Automobile Co.,Ltd.,Shaanxi Xi’an 710200)

机构地区：[1]陕西重型汽车有限公司,陕西西安710200

出　　处：《汽车实用技术》2019年第10期76-78,共3页Automobile Applied Technology

摘　　要：控制单元采用专用调试接口更新程序时,过程繁琐且一般需要拆开壳体从而破坏产品的可靠性。文章介绍了一种基于dsPIC30F的BootLoader设计方法,可通过车辆预留的OBD接口,利用CAN总线实现控制单元软件的更新。该设计方法主要包含启动管理、通信管理和底层驱动管理等模块。通过试验验证,该BootLoader能够实现控制单元程序的更新,且具有占用存储空间小、下载速度快和工作可靠的特点。Updating software in electronic controller by dedicated debug port is complicated, and always need to disassemble electronic controller which lower the stability. This paper introduce a design of BootLoader base on dsPIC30F, which uses the OBD connector to update software in electronic controller by CAN bus. The BootLoader mainly includes boot module design, communication module design and driver module design. Experimental results show that the BootLoader can update software successfully, occupys little flash rom, downloads quickly and works stably.

关 键 词：CAN总线 BOOTLOADER DSPIC30F 

分 类 号：U462[机械工程—车辆工程]