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I'm using Quartus to program a Cyclone V FPGA and it instantiates redundant feeder logic I'd like to remove (pic). The verilog that it does this for is very simple; it's just a reg that's driven by a delay line (pair of inverter gates):
wire [8:0] DL_0;
reg [8:0] R_0;
DelayLine #(1) DLIN_0 (enable, DL_0[0]);
genvar k_0;
generate
for (k_0=1; k_0<9; k_0=k_0+1) begin : generate_rdels_0
DelayLine #(1) DLK_0 (
.in(DL_0[k_0-1]),
.out(DL_0[k_0])
);
end
endgenerate
genvar j_0;
generate
for (j_0=0; j_0<9; j_0=j_0+1) begin : generate_regs_0
always @(negedge DL_0[j_0]) begin
R_0[j_0] <= node[0];
end
end
endgenerate
Can anyone help me with this? I've played around with the settings for the compiler and fitter to no avail (turned off register duplication, etc.)
Thanks!
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Hi,
Could you provide the design.qar for investigation? What is the software version?
Thanks.
Best regards,
KhaiY
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Hi,
Do you have any updates?
Thanks.
Best regards,
KhaiY
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hi NChar7,
i am FPGA beginer, i also got this '~feeder', but i don't know what it stands for? I'm confused where this '~feeder' comes from and what does it mean?
Did you get any ideal about it?
Thanks
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