Modelsim: Unknown State

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I can find the q1 and q2 under FIR(instantiation of Delay1_Redline).

If run functional simulation in qii, there is always no problem with it.

thanks

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Hi,

your are right , I could also find q1 and q2.

The reason for your problem is here :

if (count2 < 57)

begin

no_shiftreg <= no_shiftreg + 1; // +1

end

else

begin

no_shiftreg <= 0; -- here you set shift_reg to "0"

end

if (count<count_half)

begin

delay1 <= q2[no_shiftreg]; -- here you set delay1 to q[0]

end -- but q[0] is not defined,

else -- reg [signal_mag_w-1:0] q1 [num_shiftreg:1];

begin

delay1 <= q1[no_shiftreg];

end

Kind regards

GPK