System ScanEduTool, didactic instrument for education of scan technique principles

testability, testability analysis, scan, partial scan, full scan, feedback loop, design constraint, diagnostic path, test vector, test vector response

ScanEduTool is a software system designed for education of scan technique principles. Following actions can be performed in the system (using a teaching digital circuit):

• testability analysis
• application of a user-selected scan layout and testability analysis of the resulting design
• searching of a scan layout that satisfies user design constraints and is characterized by high level of testability
• observation of an impact of user-selected scan layout to an occurence of feedback loops in circuit data paths
• displaying diagnosis paths for selected circuit element and stepping the flow of diagnostics data through these paths
• viewing detailed testability information of an actual design
• all information and processes are highly illustrated