Improving Test Coverage results

There are a number of ways in which you can improve the reported test coverage to reflect the real amount of testing that will be done, or could be done:

• Set the test coverage of busses in all device files, describing what faults are checked for by the tests in that file.
• Where possible, add more tests to device files and update the test coverage sections accordingly.
• Make sure that all tests in device files are added to the test list in the XJRunner Setup screen and marked as enabled to run.
• To test the pins on off-board connectors, add external loopback connectors and describe them using PDD files so that XJTAG can check them during the connection test.
• Make sure any devices that are not fitted on the board have been categorised as unfitted to exclude their pins from test coverage reports.
• Look at the details of the test coverage analysis results, to identify pins that have not been tested, or which could be more fully tested (see the test coverage tutorial exercise for details of how to do this).