Design of Servo System Based on C8051F040

With the advent of the microprocessor and the improvement of the controller algorithm,the digital control system is becoming one of the most important directions in the field.In this paper,a method of design based on C8051F040 is offered.The digital control loop configuration and the flowchart of digital controller operation are analyzed.It puts emphasis on introducing the design principle of the digital PI controller and the PWM signal.The circuit is simple and the debug method is convenient.The test results prove that the new method has high stable performance and wide application in engineering.