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ymiler's avatar
ymiler
Icon for Contributor rankContributor
3 years ago

ECO issue

Hi, I try to change the LUT output value by the command " modify_lutmask " The TCL file includes the content : modify_lutmask -to eco_sig_1_cZ~0 -mask 0x1 But I get errors when I begin the pe...
Nurina's avatar
Nurina
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Yishay,


There is no way to define only F2.

You just have to change using SDC command mask 0x0000000000000000. Make sure you only change the bolded parts as that is the F2 mask.


Regards,

Nurina


  • ymiler's avatar
    ymiler
    Icon for Contributor rankContributor
    3 years ago

    Hi Nurina

    If I can't configure only F0 & F1 and I must to configure all the LUT's - I will get error in DATAF as your reply :

    "In the above snapshot, only F1 & F0 is utilized in the Resource Property Viewer. However once you want to change the LUT Mask of the F3 & F2, you will have to start utilizing it in the Resource Property Viewer. So once it is utilizing all F3, F2, F1 & F0, the Q output circuit will change and the combinational logic will depend on DATAF"

    Since DATAF is not using ( gray ) in my case (below) , there is no option do ECO ??

    Yishay