Abstract:

This paper introduces the application of BACnet protocol and transplantation of protocol stack,proposes a brief method on designing stacks interactive model,and presents the process of transplanting into STM32 demoboard.This method analyzes the implementation process of every layer in BACnets structure including application layer,network layer and data link layer.Transplantation is based on the BACnet-stack-0.8.2 version,with the BACnet stack tailored and transplanted according to standard objects function and hardware configuration.The STM32 demoboard is transformed into a BACnet node device which can communicate with virtual device in PC through RS485 and fulfill services like read and write properties.

Key words: BACnet protocol;STM32 platform;transplant;communication