基于MC9S12XEP100的整车控制器CAN BootLoader设计与实现

Design and Implementation of CAN BootLoader for Vehicle Control Unit Based on MC9S12XEP100

为了避免因使用传统BDM工具进行下载应用程序带来的不便,基于飞思卡尔S12X系列微控制器MC9S12XEP100,设计并实现了一个应用于整车控制器上的CAN BootLoader.该BootLoader可以通过进行简单的配置修改而应用于其他的S12X系列微控制器.实验结果表明:BootLoader能正确引导程序运行,准确、方便地下载应用程序.

In order to avoid the inconvenience of downloading by Background Debug Mode （BDM） in the traditional ways of application programs, a CAN Bus BootLoader which is applied on VCU and based on Freescale S12X family of microcontroller MC9S12XEP100 is designed and implemented. The BootLoader can be transplanted into other S12X family microcontrollers by simple configuration modifications. Experimental results show that the BootLoader boots the application programs correctly, downloads accurately and easily.