Question about SCST Lib test

[Loky]

Hi team:

I think all SCST tests can be interrupted, right?

But I don't understand this sentence.

If I put SCST test1 in Task1(Low priority), Test1 is preempted by Task2(High priority) while Test1 is running. I think stack pointer and stack content will be modified. So, I don't understand this sentence meaning. Can you explain it?

[petervlna]

Hello,

Not all SCST atomic tests are safely preemptible.
Some test groups replace the interrupt vector table or temporarily block interrupts, and they expect to run to completion without being interrupted by normal application ISRs or excessive task-preemption jitter.

If an “alien” interrupt or a context change occurs during those tests, the SCST library detects it and flags “TEST_WAS_INTERRUPTED”, and your app must handle that (e.g., reschedule or reset, depending on your safety strategy).

Best regards,

Peter

[Loky]

Hi Peter:

Can you tell me which SCST atomic tests can be interrupted and which will block?

Best regards,

Loky