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为了实现地铁屏蔽门中门控单元在线固件的更新,基于芯片本身的引导程序,采用将带FLASH库的预置程序通过CAN总线下载到芯片的随机存储器上,再利用预置程序将自行设计的引导程序固化到片内FLASH中,以实现在车站现场,远距离操作报警盘,并迅速对所有门控单元进行在线固件更新的目的。这样不但避免了为更新门控固件而拆装门控单元的麻烦,维护了程序的版权,也为地铁屏蔽门门控单元在线固件的更新提供了一种新方法。
In order to realize the online firmware update of the door control unit in subway screen door, based on the boot process of the chip itself, the preset program with the FLASH library is downloaded to the random access memory of the chip through the CAN bus, and then the preset program is used to design the Boot the program to the chip FLASH solidified, in order to achieve the scene at the station, the remote operation of the alarm panel, and quickly all the door control unit for online firmware update purposes. This not only avoids the trouble of disassembling the door control unit for updating the door control firmware, and maintains the copyright of the program, but also provides a new method for updating the online firmware of the door control unit of the subway screen door.