RTOS/PROCESSOR-SDK-DRA7X: Is it safe to call Hwi_disable in interrupt handler

Jakub Mielczarek

Part Number: PROCESSOR-SDK-DRA7X
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Dear Experts,

Is it safe to call Hwi_disable in an interrupt handler (both in SMP and non-SMP mode)? I am using sysbios version bios_6_46_01_38.

Thank you,

Jakub

over 7 years ago

0 Jakub Mielczarek over 7 years ago

Intellectual 900 points

Let me add that I am calling Hwi_disable on IPU. I would also add that I am calling Hwi_restore after Hwi_disable.

0 Yordan Kamenov over 7 years ago in reply to Jakub Mielczarek

TI__Mastermind 42515 points

Hi Jakub,

I have forwarded your question to an expert for comment.

Regards,
Yordan

0 Ashish Kapania over 7 years ago

TI__Mastermind 21645 points

Hi Jakub,

To the best of my knowledge, it is safe to call Hwi_disable() from within an interrupt handler as long as it is paired with a Hwi_restore(). You want to disable interrupts for a short period of time in order to not adversely effect the real-time behavior of the application.

Best,

Ashish

0 Jakub Mielczarek over 7 years ago in reply to Ashish Kapania

Intellectual 900 points

Hi Ashish,

Thank you for the answer,

Best regards,

Jakub

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RTOS/PROCESSOR-SDK-DRA7X: Is it safe to call Hwi_disable in interrupt handler