Design of the UAV Digital Actuator Automatic Test System Based on Dual-core Microcontroller TMS320F28377D

For purpose of UAV digital actuator test, one of UAV’s key components, whose static and dynamic performance impacts on the UAV maneuvering performance, this paper studies an automatic digital actuator test system, introduces its hardware and software design scheme, and demonstrates its application. The TI dual-core microcontroller TMS28377D serves as its core with abundant communication interfaces widely used in digital actuators such as RS422, RS485, RS232, and CAN Bus. Besides, there are rotary incremental encoders connected to the test system, providing the actual position information of digital actuator, as well as a SD card for data record in real time. Via Ethernet communication, the test system communicates with the upper computer which sends command and receives feedback. The advantages of automatic digital actuator designed in this paper are high reliability and easy upgrading. The automatic test system has great potential in the development, production and storage of the UAV digital actuator. Keywords—UAV; digital actuator; automatic test system; TMS320F28377D