Abstract: Through learning the course SCM principle and interface technology, students can have an overall grasp of SCM hardware structure, working principle and assembly program design. There are two major problems in traditional teaching : it is weak in practice, and students lack initiative at the level of verification experiment;The link between "single chip microcomputer" and "interface technology" is not close, and the knowledge structure of students is separated. Inspired by project-based teaching method, project-driven thought is integrated into teaching. The teaching content is based on virtual simulation of single-chip computer using Proteus software. Guide students to start from the problem, and gradually complete the selection and design of the minimum single-chip microcomputer system, the subsequent interface circuit design and simulation, the design of the project close to the actual engineering products, so as to cultivate applied talents with engineering practice ability.

Key words: SCM principle and interface, Design and simulation, Project teaching method