S32K SAF sCheck WCET for each test target

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S32K SAF sCheck WCET for each test target

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sifan
Contributor II

On sCheck UM.  I can get WCET value of each test target

Is WCET value represent the total test or the single test ?

 

e.g. 

DCACHE will run 198 times on SAF Example Code V1.0.4.

For a signle time test.  May I ask the WCET value is "17972" or "17972 / 198" ?

sifan_0-1724058732550.png

 

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RadoslavB
NXP Employee
NXP Employee

Hello @sifan ,

the estimate number is just for one pass of the test.
Please be aware that sCheck runtime tests are executed within batches, how many tests are executed within one batch is affected by this configuration option:
RadoslavB_0-1724664970982.png

Please consider the WCET numbers in the sCheck UM just as informative value, because it depends on particular HW setup of your device (derivative, clock setting, others setting...), so if you want to know exact execution time, you need to implement your own measurement e.g.  osci. measurement by Output signal ON/OFF before/after the test execution or less precisely by debugger measurement.

Kind Regards,
Radoslav

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957 次查看
RadoslavB
NXP Employee
NXP Employee

Hello @sifan ,

the estimate number is just for one pass of the test.
Please be aware that sCheck runtime tests are executed within batches, how many tests are executed within one batch is affected by this configuration option:
RadoslavB_0-1724664970982.png

Please consider the WCET numbers in the sCheck UM just as informative value, because it depends on particular HW setup of your device (derivative, clock setting, others setting...), so if you want to know exact execution time, you need to implement your own measurement e.g.  osci. measurement by Output signal ON/OFF before/after the test execution or less precisely by debugger measurement.

Kind Regards,
Radoslav

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sifan
Contributor II

Hi RadoslavB

Thanks for you clarification

 

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