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Fixed broken Quartus backend on dffeas init value (Error (12170): Illegal value for the POWER_UP parameter. Fixed and tested Cyclone V device
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11 changed files with 232 additions and 177 deletions
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@ -16,50 +16,31 @@
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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// > c60k28 (Viacheslav, VT) [at] yandex [dot] com
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// > Achronix eFPGA technology sim models. User must first simulate the generated \
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// > netlist before going to test it on board/custom chip.
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// > Changelog: 1) Removed unused VCC/GND modules
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// > 2) Altera comments here (?). Removed.
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// > 3) Reusing LUT sim model, removed wrong wires and parameters.
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module VCC (output V);
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assign V = 1'b1;
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endmodule // VCC
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module GND (output G);
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assign G = 1'b0;
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endmodule // GND
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/* Altera MAX10 devices Input Buffer Primitive */
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module PADIN (output padout, input padin);
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assign padout = padin;
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endmodule // fiftyfivenm_io_ibuf
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endmodule
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/* Altera MAX10 devices Output Buffer Primitive */
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module PADOUT (output padout, input padin, input oe);
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assign padout = padin;
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assign oe = oe;
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endmodule // fiftyfivenm_io_obuf
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endmodule
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/* Altera MAX10 4-input non-fracturable LUT Primitive */
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module LUT4 (output dout,
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input din0, din1, din2, din3);
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/* Internal parameters which define the behaviour
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of the LUT primitive.
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lut_mask define the lut function, can be expressed in 16-digit bin or hex.
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sum_lutc_input define the type of LUT (combinational | arithmetic).
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dont_touch for retiming || carry options.
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lpm_type for WYSIWYG */
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parameter lut_function = 16'hFFFF;
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//parameter dont_touch = "off";
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//parameter lpm_type = "fiftyfivenm_lcell_comb";
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//parameter sum_lutc_input = "datac";
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reg [1:0] lut_type;
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reg cout_rt;
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parameter [15:0] lut_function = 16'hFFFF;
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reg combout_rt;
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wire dataa_w;
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wire datab_w;
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wire datac_w;
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wire datad_w;
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wire cin_w;
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assign dataa_w = din0;
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assign datab_w = din1;
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@ -78,49 +59,21 @@ reg [1:0] s1;
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s1 = datab ? s2[3:2] : s2[1:0];
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lut_data = dataa ? s1[1] : s1[0];
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end
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endfunction
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initial begin
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/*if (sum_lutc_input == "datac")*/ lut_type = 0;
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/*else
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if (sum_lutc_input == "cin") lut_type = 1;
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else begin
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$error("Error in sum_lutc_input. Parameter %s is not a valid value.\n", sum_lutc_input);
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$finish();
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end*/
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end
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always @(dataa_w or datab_w or datac_w or datad_w or cin_w) begin
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if (lut_type == 0) begin // logic function
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combout_rt = lut_data(lut_function, dataa_w, datab_w,
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datac_w, datad_w);
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end
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else if (lut_type == 1) begin // arithmetic function
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combout_rt = lut_data(lut_function, dataa_w, datab_w,
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cin_w, datad_w);
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end
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cout_rt = lut_data(lut_function, dataa_w, datab_w, cin_w, 'b0);
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combout_rt = lut_data(lut_function, dataa_w, datab_w,
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datac_w, datad_w);
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end
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assign dout = combout_rt & 1'b1;
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//assign cout = cout_rt & 1'b1;
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endmodule // fiftyfivenm_lcell_comb
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/* Altera MAX10 D Flip-Flop Primitive */
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// TODO: Implement advanced simulation functions
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module dffeas ( output q,
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input d, clk, clrn, prn, ena,
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input asdata, aload, sclr, sload );
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parameter power_up="dontcare";
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parameter is_wysiwyg="false";
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reg q;
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always @(posedge clk)
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q <= d;
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endmodule
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module DFF (output q,
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input d, ck);
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reg q;
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always @(posedge ck)
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q <= d;
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endmodule
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