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ZedBoard Hardware Design 1V Power supply under-powered
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1V Power supply under-powered

Former Member
Former Member over 13 years ago

What's the maximum power that can by drawn by the Zynq PL? Has this been tested?

I have build a large design (80%) that need to runs at 100MHz, but when I program the bitstream to the Zedboard. The Zynq reset a few ms after being DONE.

Also, I have probed the 1V power supply at C357. After, the PL is DONE, the voltage go down to about 560mV and go back up to 1V probably because the PL resets.

What could be causing this?

Is it because the PL draw to much power?

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  • Former Member
    0 Former Member over 13 years ago

    I though I'd let you know that I have confirmed this issue.

    I bypassed the 1V power supply by using an external power supply. Now, the design is working and as much as 3A is drawn from the 1V power supply.

    This is much more than the 2A the MAX15021ATI+ (onboard 1V PSU) is capable of.

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  • Former Member
    0 Former Member over 12 years ago in reply to Former Member

    I have the similar issue and need an external power supply to power the core voltage. Any tips in modifying the board? Where did you cut the wire and connect the jumper wires? Thanks.

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  • Former Member
    0 Former Member over 12 years ago in reply to Former Member

    I have the similar issue and need an external power supply to power the core voltage. Any tips in modifying the board? Where did you cut the wire and connect the jumper wires? Thanks.

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