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MicroZed randomly resetting

Former Member

Microzed randomly resets.  Rarely running more than 24 hours.  Sometimes resetting every few minutes. 

Reset frequency possibly a function of activity.  MicroZed powered from USB.  Maybe some power valid sensor is triggering a reset??

Anybody else seen this?

llj

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    Could it be that your design exceeds the power available through the USB port? 

     

    By USB specification a single USB port can only supply a maximum of 500 mA @ 5V. By the time you power the PS section of the Zynq device, the DDR memory and the other components on the MicroZed board there is a limited amount of current left to power the PL section of the Zynq, any loads on the USB-Host interface, and anything plugged into the PMOD connector.

     

    If this is a possible source of your resets there are several ways to provide additional power to the MicroZed.

     

    Use a USB Y-cable, with two connections to the Host for a 1A source.

    Populating a DC barrel jack (J4) and providing 5V there.

    Plug the MicroZed into a carrier card to provide additional power.

     

    -Gary

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  • 0

    Could it be that your design exceeds the power available through the USB port? 

     

    By USB specification a single USB port can only supply a maximum of 500 mA @ 5V. By the time you power the PS section of the Zynq device, the DDR memory and the other components on the MicroZed board there is a limited amount of current left to power the PL section of the Zynq, any loads on the USB-Host interface, and anything plugged into the PMOD connector.

     

    If this is a possible source of your resets there are several ways to provide additional power to the MicroZed.

     

    Use a USB Y-cable, with two connections to the Host for a 1A source.

    Populating a DC barrel jack (J4) and providing 5V there.

    Plug the MicroZed into a carrier card to provide additional power.

     

    -Gary

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