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8 years, 11 months ago.
rtos issue[compitetion of pendsv and systick]
hi,there
In HAL_CM4.s file, PendSV_Handler function handles the interrupt of pendsv.
In rt_System.c file, rt_systick (callbed by SysTick_Handler) functions handles the interrupt of systick.
Question is that no irq is disabled while both functions access os_tsk.run var.
I think systick will preemptive pendsv.
Why is that?
Thanks.
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anyone?
posted by linucos linucos 01 Jun 2015anyone?
posted by linucos linucos 12 Jun 2015