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OMAP3530 Waking from RETENTION by a GPIO55

Habib Farahani
Prodigy 110 points
Other Parts Discussed in Thread: OMAP3530

In my project using and OMAP3530, I am trying to wakeup the processor from retention using GPIO55.  This belongs to GPIO-2 group.  I have enabled the wakup enable in MUX and GPIO_WAKUPENABLE registers.  I have also enabled EN_IO in PM_WKEN_WKUP register.  However, even though the gpio toggles the cpu does not wakeup.  Is there any other source that has to be set for this to work?

 

  • 0
    TI__Genius 16690 points

    For GPIOs in modules GPIO2-6 (ie, GPIO_32-191), they can only generate wakeup events if the PER power domain is active. Please refer below wiki for more details on this topic.

    http://processors.wiki.ti.com/index.php/OMAP35x_Schematic_Checklist#GPIO