63 lines
1.4 KiB
Systemverilog
63 lines
1.4 KiB
Systemverilog
/**
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* display_converter.sv - decodes a 5 bit digit input into its seven segment
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* display equivalent using a lookup table. Display can
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* do 0 - 9, A - F, individual segments and special
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* characters.
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*
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* @author: Dilanthi Prentice, Waylon Cude
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* @date: 6/12/25
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*
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****/
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module display_converter(
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input logic [4:0] digit,
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output logic [6:0] segment
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);
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localparam ROM_SIZE=32;
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//ROM lookup table for seven segment display
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//blanks are unused space we could add characters to.
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localparam logic [6:0] segment_rom [0:ROM_SIZE-1] = '{
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7'b1111110, //0
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7'b0000110, //1
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7'b1101101, //2
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7'b1111001, //3
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7'b0110011, //4
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7'b1011011, //5
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7'b1011111, //6
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7'b1110000, //7
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7'b1111111, //8
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7'b1111011, //9
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7'b1110111, //A
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7'b0011111, //B
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7'b1001110, //C
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7'b0111101, //D
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7'b1001111, //E
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7'b1000111, //F
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7'b1000000, //segment a
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7'b0100000, //segment b
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7'b0010000, //segment c
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7'b0001000, //segment d
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7'b0000100, //segment e
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7'b0000001, //segment f
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7'b0110111, //H
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7'b0001110, //L
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7'b1110111, //R
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7'b0000110, //l
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7'b0000101, //r
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7'b0000000, //blank
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7'b0000000, //blank
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7'b0000000, //blank
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7'b0000000, //blank
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7'b0000000 //blank
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};
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//use digit input to index segment_rom lookup table.
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assign segment = segment_rom[digit];
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endmodule
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