動作確認、さぁ行ってみようかぁ。
- Quartus Primeを起動、"File" -> "New Project Wizard"を選択、プロジェクト名は"LEDBlink"、詳細設定はこちらの中で参照しているこちらを参照、"Family & Device Setting"を"5CEBA4F23C7"にするのを忘れずに。
- "File" -> "New..."で"Verilog HDL"を選択、以下の通りに実装、"LEDBlink.v"で保存
module LEDBlink( input wire in_clk, input wire [9:0] in_switch, input wire [3:0] in_button, output wire [9:0] out_led, output wire [6:0] seven_segment_0, output wire [6:0] seven_segment_1, output wire [6:0] seven_segment_2, output wire [6:0] seven_segment_3, output wire [6:0] seven_segment_4, output wire [6:0] seven_segment_5); // wire reset = ~in_button[0]; // // clock divder for 1 sec // reg [25:0] _26bit_counter; wire _26bit_counter_expired; assign _26bit_counter_expired = (_26bit_counter == 26'd49_999_999)? 1'b1: 1'b0; // always @(posedge in_clk or posedge reset) begin if (reset) _26bit_counter <= 26'd0; else begin if (_26bit_counter_expired) _26bit_counter <= 26'd0; else _26bit_counter <= _26bit_counter + 26'd1; end end // // LED blink latch // reg led_latch; // always @(posedge in_clk or posedge reset) begin if (reset) led_latch <= 1'd0; else if (_26bit_counter_expired) led_latch <= ~led_latch; end // // counter for 7 segment LED // reg [3:0] _4bit_counter; // always @(posedge in_clk or posedge reset) begin if (reset) _4bit_counter <= 4'd0; else if (_26bit_counter_expired) _4bit_counter <= _4bit_counter + 4'd1; end //assign LEDs seven_segment_decoder seven_segment_decoder_0( .in_4bit(_4bit_counter + 4'd5), .out_seven_segment(seven_segment_0)); seven_segment_decoder seven_segment_decoder_1( .in_4bit(_4bit_counter + 4'd4), .out_seven_segment(seven_segment_1)); seven_segment_decoder seven_segment_decoder_2( .in_4bit(_4bit_counter + 4'd3), .out_seven_segment(seven_segment_2)); seven_segment_decoder seven_segment_decoder_3( .in_4bit(_4bit_counter + 4'd2), .out_seven_segment(seven_segment_3)); seven_segment_decoder seven_segment_decoder_4( .in_4bit(_4bit_counter + 4'd1), .out_seven_segment(seven_segment_4)); seven_segment_decoder seven_segment_decoder_5( .in_4bit(_4bit_counter), .out_seven_segment(seven_segment_5)); // assign out_led = (led_latch)? 10'b11_1111_1111: 10'b00_0000_0000; endmodule
- "File" -> "New..."で"Verilog HDL"を選択、以下の通りに実装、こちらは"seven_segment_decoder.v"で保存
module seven_segment_decoder( input wire [3:0] in_4bit, output wire [6:0] out_seven_segment); // function [6:0] led_decoder; // input [3:0] in_number; // begin case (in_number) 4'h0: led_decoder = 7'b1000000; 4'h1: led_decoder = 7'b1111001; 4'h2: led_decoder = 7'b0100100; 4'h3: led_decoder = 7'b0110000; 4'h4: led_decoder = 7'b0011001; 4'h5: led_decoder = 7'b0010010; 4'h6: led_decoder = 7'b0000010; 4'h7: led_decoder = 7'b1111000; 4'h8: led_decoder = 7'b0000000; 4'h9: led_decoder = 7'b0011000; 4'ha: led_decoder = 7'b0001000; 4'hb: led_decoder = 7'b0000011; 4'hc: led_decoder = 7'b0100111; 4'hd: led_decoder = 7'b0100001; 4'he: led_decoder = 7'b0000110; 4'hf: led_decoder = 7'b0001110; default: led_decoder = 7'b1111111; endcase end endfunction // assign out_seven_segment[6:0] = led_decoder(in_4bit); // endmodule
- 一度、Quartus Primeを終了、プロジェクトフォルダー下の"(project名).qsf"をテキストエディターで開き、以下をコピペ。
set_location_assignment PIN_M6 -to in_button[3] set_location_assignment PIN_M7 -to in_button[2] set_location_assignment PIN_U7 -to in_button[0] set_location_assignment PIN_W9 -to in_button[1] set_location_assignment PIN_U13 -to in_switch[0] set_location_assignment PIN_V13 -to in_switch[1] set_location_assignment PIN_T13 -to in_switch[2] set_location_assignment PIN_T12 -to in_switch[3] set_location_assignment PIN_AA15 -to in_switch[4] set_location_assignment PIN_AB15 -to in_switch[5] set_location_assignment PIN_AA14 -to in_switch[6] set_location_assignment PIN_AA13 -to in_switch[7] set_location_assignment PIN_AB13 -to in_switch[8] set_location_assignment PIN_AB12 -to in_switch[9] set_location_assignment PIN_AA2 -to out_led[0] set_location_assignment PIN_AA1 -to out_led[1] set_location_assignment PIN_W2 -to out_led[2] set_location_assignment PIN_Y3 -to out_led[3] set_location_assignment PIN_N2 -to out_led[4] set_location_assignment PIN_N1 -to out_led[5] set_location_assignment PIN_U2 -to out_led[6] set_location_assignment PIN_U1 -to out_led[7] set_location_assignment PIN_L2 -to out_led[8] set_location_assignment PIN_L1 -to out_led[9] set_location_assignment PIN_U21 -to seven_segment_0[0] set_location_assignment PIN_V21 -to seven_segment_0[1] set_location_assignment PIN_W22 -to seven_segment_0[2] set_location_assignment PIN_W21 -to seven_segment_0[3] set_location_assignment PIN_Y22 -to seven_segment_0[4] set_location_assignment PIN_Y21 -to seven_segment_0[5] set_location_assignment PIN_AA22 -to seven_segment_0[6] set_location_assignment PIN_AA20 -to seven_segment_1[0] set_location_assignment PIN_AB20 -to seven_segment_1[1] set_location_assignment PIN_AA19 -to seven_segment_1[2] set_location_assignment PIN_AA18 -to seven_segment_1[3] set_location_assignment PIN_AB18 -to seven_segment_1[4] set_location_assignment PIN_AA17 -to seven_segment_1[5] set_location_assignment PIN_U22 -to seven_segment_1[6] set_location_assignment PIN_Y19 -to seven_segment_2[0] set_location_assignment PIN_AB17 -to seven_segment_2[1] set_location_assignment PIN_AA10 -to seven_segment_2[2] set_location_assignment PIN_Y14 -to seven_segment_2[3] set_location_assignment PIN_V14 -to seven_segment_2[4] set_location_assignment PIN_AB22 -to seven_segment_2[5] set_location_assignment PIN_AB21 -to seven_segment_2[6] set_location_assignment PIN_Y16 -to seven_segment_3[0] set_location_assignment PIN_W16 -to seven_segment_3[1] set_location_assignment PIN_Y17 -to seven_segment_3[2] set_location_assignment PIN_V16 -to seven_segment_3[3] set_location_assignment PIN_U17 -to seven_segment_3[4] set_location_assignment PIN_V18 -to seven_segment_3[5] set_location_assignment PIN_V19 -to seven_segment_3[6] set_location_assignment PIN_U20 -to seven_segment_4[0] set_location_assignment PIN_Y20 -to seven_segment_4[1] set_location_assignment PIN_V20 -to seven_segment_4[2] set_location_assignment PIN_U16 -to seven_segment_4[3] set_location_assignment PIN_U15 -to seven_segment_4[4] set_location_assignment PIN_Y15 -to seven_segment_4[5] set_location_assignment PIN_P9 -to seven_segment_4[6] set_location_assignment PIN_N9 -to seven_segment_5[0] set_location_assignment PIN_M8 -to seven_segment_5[1] set_location_assignment PIN_T14 -to seven_segment_5[2] set_location_assignment PIN_P14 -to seven_segment_5[3] set_location_assignment PIN_C1 -to seven_segment_5[4] set_location_assignment PIN_C2 -to seven_segment_5[5] set_location_assignment PIN_W19 -to seven_segment_5[6] set_location_assignment PIN_M9 -to in_clk
これでDE0-CVボード上の部品との接続ができる。
このピンアサインメントはよく使うので、"Assignments" -> "Export Assignments"を選択し、どこかに保存して置くと他のプロジェクトでインポートできる。
