Waylon Cude
3b30a32045
All checks were successful
ci/woodpecker/push/test-workflow Pipeline was successful
Also fixed up the one type I found in the seconds display
55 lines
1.5 KiB
Systemverilog
55 lines
1.5 KiB
Systemverilog
`timescale 1ns / 1ps
|
|
module seconds_display_tb;
|
|
int errors = 0;
|
|
logic [5:0] seconds;
|
|
wire [6:0] display_tens;
|
|
wire [6:0] display_ones;
|
|
|
|
logic [6:0] expected_tens;
|
|
logic [6:0] expected_ones;
|
|
|
|
seconds_display Dut(.*);
|
|
initial begin
|
|
$display("Testing seconds_display");
|
|
for (seconds=0; seconds<60; seconds++) begin
|
|
expected_ones = encode_number(seconds % 10);
|
|
expected_tens = encode_number(seconds /10);
|
|
#1
|
|
if (display_ones !== expected_ones) begin
|
|
errors++;
|
|
$error("Failed ones test case, seconds = %d, displayed = %b, expected = %b",
|
|
seconds,
|
|
display_ones,
|
|
expected_ones);
|
|
end
|
|
else
|
|
if (display_tens !== expected_tens) begin
|
|
errors++;
|
|
$error("Failed tens test case, seconds = %d, displayed = %b, expected = %b",
|
|
seconds,
|
|
display_tens,
|
|
expected_tens);
|
|
end
|
|
end
|
|
|
|
if (errors == 0)
|
|
$display("All tests passing");
|
|
end
|
|
|
|
endmodule
|
|
|
|
function automatic logic [6:0] encode_number(logic [5:0] num);
|
|
case (num)
|
|
0: return 7'b1111110;
|
|
1: return 7'b0000110;
|
|
2: return 7'b1101101;
|
|
3: return 7'b1111001;
|
|
4: return 7'b0110011;
|
|
5: return 7'b1011011;
|
|
6: return 7'b1011111;
|
|
7: return 7'b1110000;
|
|
8: return 7'b1111111;
|
|
9: return 7'b1111011;
|
|
endcase
|
|
endfunction
|