TI RTOS priorities

inno

Expert 1700 points

Hi Team,

when I use a timer task in TI RTOS : who has higher priority : a timer task or a "regular" (non timer based) task ?

I am getting confusing results when I do tests on my IDK

over 4 years ago

0 Ki over 4 years ago

TI__Guru**** 463941 points

Hello,

What device are you using?

Thanks

0 inno over 4 years ago in reply to Ki

Expert 1700 points

Sitara AM437x

Thanks

0 Aravind Batni over 4 years ago in reply to inno

TI__Expert 8885 points

Hi Inno,

The timer (dmTimer specifically) is a HW IP and can raise interrupts to the SoC after events such as overflow etc. I believe the task you are mentioning is a TI-RTOS task, that is handled by SYS BIOS.

The timer priority is based on the ARM GIC priority and it should not be confused with the the BIOS TASK priority. You can create a timer task (RTOS TASK), which can create a timer and can register an ISR for timer, which is called in HWI context. (not Task context).

Hope it clarifies it

Thanks

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TI RTOS priorities