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ianfield avatar ianfield commented on September 28, 2024

Alternatively, if kernel is suspended on entry, would this make sense:

osKernelResume(0);

/* Synchronize tick */
ASSERT_TRUE(osDelay(1U) == osOK);

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VladimirUmek avatar VladimirUmek commented on September 28, 2024

Hi,
this should be open in CMSIS-RTOS2_Validation, but I guess we can also solve it here.

If you are referring to TC_osKernelSuspend_1 and TC_osKernelResume_1 then osDelay(1U) is there to set the tick counter to the start of time slice (as close as possible, hence it is synchronizing tick). It sets the initial condition to ensure correct test case flow.

Each test is independent and looking at the code, the kernel shall be running after TC_osKernelSuspend_1. The kernel is resumed and since osKernelSuspend and osKernelResume shall not be called from ISR any other call shall not suspend the kernel. TC_osKernelResume_1 is therefore called with the kernel tick running.

Does this make sense?

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