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OMAP4460 Warm reset scheme

veera venkateswara rao pusala
Intellectual 280 points

Hi,

        I am using OMAP4460 processor my project, when i was reset button of my module (Tablet PC), it is hanging. one of peripheral is not coming to the normal state (High).... please suggest me what i need to do that reset scheme should be worked.....

Regards,

Veera

  • 0
    TI__Intellectual 815 points 
    Hello,
    To get a better idea of how the OMAP4460 device goes through the reset sequence, 
    you can look at the 4460 Public TRM section 3.5, which covers warm resets.
    Section 3.5.6 in particular covers the warm reset sequences in detail.
    Regards,
    Alex
  • 0
    TI__Intellectual 1300 points

    Hi Veera,

    Warm reset only resets the OMAP4460 device. The other peripherals on your board may not go through a proper reset sequence upon a warm reset and it could be held up in wrong states. I suggest you do a full power cycle of the board when pressing the reset button. This way it will make sure that all the peripheral devices also be in the proper state after the reset.

    Regards, Satheesh