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Diffstat (limited to 'de1/fpga-flash-nor/hexled.v')
| -rw-r--r-- | de1/fpga-flash-nor/hexled.v | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/de1/fpga-flash-nor/hexled.v b/de1/fpga-flash-nor/hexled.v new file mode 100644 index 0000000..1c25a59 --- /dev/null +++ b/de1/fpga-flash-nor/hexled.v @@ -0,0 +1,72 @@ +module hexled ( + value, + s7 + ); + + input [3:0] value; + output [6:0] s7; + reg [6:0] s7; + + always @( value ) + begin + case ( value ) + 4'h0: s7 = ~7'b0111111; + 4'h1: s7 = ~7'b0000110; + 4'h2: s7 = ~7'b1011011; + 4'h3: s7 = ~7'b1001111; + 4'h4: s7 = ~7'b1100110; + 4'h5: s7 = ~7'b1101101; + 4'h6: s7 = ~7'b1111101; + 4'h7: s7 = ~7'b0000111; + 4'h8: s7 = ~7'b1111111; + 4'h9: s7 = ~7'b1101111; + 4'hA: s7 = ~7'b1110111; + 4'hB: s7 = ~7'b1111100; + 4'hC: s7 = ~7'b0111001; + 4'hD: s7 = ~7'b1011110; + 4'hE: s7 = ~7'b1111001; + 4'hF: s7 = ~7'b1110001; + endcase + end +endmodule // hexled + +module hexledx ( + value, + blank, + minus, + s7 + ); + + input [3:0] value; + input blank; + input minus; + output [6:0] s7; + reg [6:0] s7; + + always @( value or blank or minus ) + begin + if ( blank ) + s7 = ~7'b0000000; + else if ( minus ) + s7 = ~7'b1000000; + else case ( value ) + 4'h0: s7 = ~7'b0111111; + 4'h1: s7 = ~7'b0000110; + 4'h2: s7 = ~7'b1011011; + 4'h3: s7 = ~7'b1001111; + 4'h4: s7 = ~7'b1100110; + 4'h5: s7 = ~7'b1101101; + 4'h6: s7 = ~7'b1111101; + 4'h7: s7 = ~7'b0000111; + 4'h8: s7 = ~7'b1111111; + 4'h9: s7 = ~7'b1101111; + 4'hA: s7 = ~7'b1110111; + 4'hB: s7 = ~7'b1111100; + 4'hC: s7 = ~7'b0111001; + 4'hD: s7 = ~7'b1011110; + 4'hE: s7 = ~7'b1111001; + 4'hF: s7 = ~7'b1110001; + endcase + end +endmodule // hexledx + |