一种基于TMS320F28377D型微控制单元的低成本控制器软件方案设计

A Low-cost Controller Software Scheme Design Based on TMS320F28377D

目前工业实时控制器采用“ARM+DSP+FPGA”软件架构,存在数据流复杂、开发难度大以及成本高等缺点。对此,文章提出一种基于TMS320F28377D型微控制单元的控制系统平台软件方案设计。其利用TMS320F28377D的双核特性并辅以硬件协议栈芯片实现以太网通信,用其中一个内核完成电机算法控制,另一个内核实现逻辑程序控制、波形监视、故障记录以及对外通信等功能。该平台既满足了工业实时控制器的功能需求,又极大地简化了控制系统的数据流,降低了控制器平台软件开发难度,平台的开发人员数量由原来的3位减少到1位,使得产品成本得到极大程度的降低。基于该控制器软件架构的逻辑及控制软件已在空调螺杆机变频器产品中得到了有效的应用,验证了该控制器方案的可靠性。

Current industrial real-time controller adopts "ARM+DSP+FPGA" software architecture, which has the disadvantages of complex data flow, high development difficulty and high cost. Therefore, this paper proposes a single MCU control system platform software scheme based on TMS320F28377D. It utilizes the dual-core feature of TMS320F28377D and hardware protocol stack chip to realize Ethernet communication, so that one core realizes motor algorithm control, and the other one completes functions such as logic program control, waveform monitoring, fault recording and external communication. The platform not only meets the functional requirements of industrial real-time controllers, but also greatly simplifies data flow of the control system,which reduces the difficulty of software development of controller platform, the number of developers of the platform is reduced from 3 to 1, and decreases the product cost to a large extent. The logic and control software based on the software architecture of the controller have been effectively applied in air conditioning screw machine inverter products, which verifies the reliability of the controller scheme.