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dinkersemwal's avatar
dinkersemwal
Icon for New Contributor rankNew Contributor
5 years ago
Solved

NCO IP output is shifting wrt output valid on aria10 eval board

Hi All, I am using intel NCO IP as DDS to generate a LO for the mixer. when i am testing my module on board(aria10 eval), i observe that output sample is shifting by one clock (back and forth wit...
  • SengKok_L_Intel's avatar
    SengKok_L_Intel
    5 years ago

    Hi,

    This might be related to the reset, you probably need to hold the reset for a few clock cycles while the clken is asserted.


    Regards -SK


SengKok_L_Intel's avatar
SengKok_L_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

This might be related to the reset, you probably need to hold the reset for a few clock cycles while the clken is asserted.


Regards -SK


  • dinkersemwal's avatar
    dinkersemwal
    Icon for New Contributor rankNew Contributor
    5 years ago

    Hi SK,

    Thanks for the reply.

    >>This might be related to the reset, you probably need to hold the reset for a few clock cycles while the clken is asserted.

    yes, i also feel the same . even data diagram in IP document shows the same.

    In my design reset is de asserted long before clken. clken is asserted when i get IQ_in valid.

    what if, i reset NCO IP again after the clken is asserted?

    I have one concern, that what will happen if NCO ip gets a synchronous reset? (its aspects asynchronous reset).

    Thanks.

    Regards

    Dinker