How do I wake up ARM-core from the WFI mode on OMAPL138?

RY9983

Hello.
I would like to clarify about wake-up from the WFI mode.(SPRUgm7d P145)

I have succeeded in entering the WFI mode.
After that, I just generate timer interrupt to ARM.
But, I can not succeed in exiting WFI mode.

Could you let me know below?
- Can I use timer interrupt to wake-up?
- Can I use usb interrupt to wake-up?
- If you have some advice, could you tell me?

Best Regards,
BL.HSR-WZ

over 15 years ago

0 Mukul Bhatnagar over 15 years ago

TI__Guru* 85315 points

This should be do-able. You should be able to use any ARM system interrupt as wake up from WFI , assuming you enabled it before going to WFI mode.

My colleague is also planning to add a simple example to for ARM to DSP , DSP to ARM clock on/off as part of this package

http://processors.wiki.ti.com/index.php/QuickStartOMAPL1x_rCSL

This should be available in another month or two.

Regards

Mukul

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How do I wake up ARM-core from the WFI mode on OMAPL138?