OMAP3503: SYS/BIOS HWI order for same priority isr's

Sean Bedford

Part Number: OMAP3503
Other Parts Discussed in Thread: SYSBIOS

Good afternoon,

I am trying to determine how sys/bios would select which of 2 qued hwi's of the same priority to run after finishing another higher priority hwi?

I haven't been able to find the answer to this anywhere else so was hoping someone on here would be able to tell me?

Many thanks

Sean

over 4 years ago

0 Frank Livingston over 4 years ago

TI__Mastermind 28788 points

Hi Sean,

I looked through these docs and couldn't locate the answer:

<BIOS>/docs/Bios_User_Guide.pdf
<BIOS>/docs/cdoc/ti/sysbios/hal/Hwi.html
<BIOS>/docs/cdoc/ti/sysbios/family/arm/a8/intcps/Hwi.html

I'll need to reach out internally to find the answer. I'll keep you posted.

Thanks and regards,
Frank

0 ToddMullanix over 4 years ago in reply to Frank Livingston

TI__Guru* 96960 points

Hi Sean,

It is first come, first serve. So if two threads (Hwi, Swi or Task) of the same priority were made ready, the one that was readied first will run first. Of course all Hwi's are higher than all Swi's which are higher than all Tasks.

Todd

[fyi...sorry for the slow response...I thought I hit reply the other day]

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OMAP3503: SYS/BIOS HWI order for same priority isr's