In any communication protocol, all areas above the physical layer will use specific protocol data units to achieve the most important specific protocol. For simplicity, all log data units are referred to here as transactions.
Injecting errors at the physical layer requires a different process And is reviewed on another blog website. Next, we’ll focus on injecting transaction field errors into top-level movies.
Injection of an error in a transaction field that is appropriate for the upper layers of the communications protocol should fully encompass the following. Continue reading “Injection of a communication protocol error – transaction corruption”
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Bidirectional software data has bidirectional traffic. As discussed in the “Troubleshooting Guidelines for Serial Communications”, a control error is defined to correct a fault on the physical line. In a bi-directional interface, four physical lines are often used to connect two directions. Therefore, it is recommended to check the effects of the imperfection of the last physical line in both directions.
Serial communication system
Continue with “Injecting Error in Communication Protocol – Processing Direction”
Starting and ending the injection rejection confirmation is the last step. Organizing audit plan execution through publication guidelines can improve implementation efficiency. You
If you have reached this step, it means you have completed the Error Scenario Thinking Process. The resulting scenarios were ranked according to the “Determine a Reasonable Fault Management Plan” overview. The selected BFM performs “error injection in the power bus function models”. The tests were written in accordance with the guidelines in Structuring A-Shot Tests.
The confirmation of normal operation is assumed to have reached a certain stability level before running error checking.
End Of Test
Injection tests for localization of faults should start with appropriate tests. Target test Simulation is simpler and can be used for updating and debugging. It is generally recommended to use the width first subroutine unless there are special requirements. The first general exercise means that all of our types of error injection in the past have switched to supervised exercise in a mostly limited random mode. The first width helps to catch many of the problems and gives designers enough time to fix them. A pointless limitation will take longer to train and clear up. This applies more deeply to each type of procedural error.
When supervised testing is great, it is recommended that you move on to non-linear constrained testing. The number of seeds should be determined differently depending on the type of error introduced. Detecting errors will certainly increase the number of seeds selected earlier, but later can be minimized until the seeds reach the desired smart coverage.
Functional Cover Closed
Basic functional coverage for fault injection must be completed.can only be monitored by the fault configuration. Error injection types cover both individual errors and their number. Variations in corruption by region and sequence should be considered separately.
Cross-coverage must be defined to achieve:
Errors in the applicable types and several types of protocol data blocks. They are covered by the correct spelling of cross-coverage between the A-shot error type and the log data unit type.
Sorting errors that can be used on both the sending and receiving sides. Hence, they must be covered at random, crossing the direction in which the error type
Be careful with your creations. It is always easy to make a cross, but difficult to cover it. So save some space to reduce the number of errors you introduce.
Coverage of the error type of the error can be achieved by rigorous testing of directional error injection. Whereas corruption and changes in coverage are best covered by various limited tests.
Resume
PerfectThe third test delivery order with error injection looks like this:
Regardless of submission and creation.
Targeted tests that identify one defect for all selected defect injection types.
Limited random testing with regular training, preference is given to single errors for all types of error injection, regardless of page submissions and hijacks.
Selected target tests that run multiple error pairs independently for sending and receiving.
Constrained, unselected tests that run multiple combinations of failures separately for send and receive.
Simultaneous error procedure on the sending and receiving sides.
Limited randomized tests that detect a single defect for virtually all defect injection types selected regardless of send and receive side.
Limited random tests in which multiple error combinations are run independently for the passport and host parties.
YingDefect injection as a feature requires concentration and purity in each of the areas. The introduction of errors along with general testing can easily be around 30-40%. This is a considerable figure.
Tests written to catch bugs need to be well structured for two main reasons. First, to make debugging easier, and second, to improve code reuse in tests. Given the overall contribution of this bug injection, reusing good tests in general can reduce test development effort.
Some of the general characteristics of the tests are no doubt applicable to the fault injection tests as well
Tests include stimulus generation and response testing.
There are two types of tests: targeted clinical tests, limited randomized tests.
Controlling Stimulus And Response To A Test With Error Injection
An important point that is sometimes forgotten is that traffic is a chapter in every test. Make sure there is always data traffic before any post-deployment error and after completion of the serial Recovery. This is especially important for us as we are building a standard protocol for transferring data. Just like testing should pass traffic, having everything else they do. Because almost everything you do is used to transfer data reliably and efficiently.
Troubleshooting tests are identified by:
Contains incentive
Enter an injection execution error.
Fires when recovery is being considered.
Tests carried out on the DUT
FSM Status
Log of interrupts and therefore configuration status.
