I used quatus2 to do some a decoder, but it couldn't work when it was at the process of vector waveform file...who can help me ??:p which process is wrong?
here is the test..
module decoder(clken,code,reset,decode);
input clken;
input [2:0]code;
input reset;
output [7:0] decode;
reg[7:0] decode;
always @(code)
begin
if(reset)
decode<=8'b11111111;
else if(clken)
case (code)
3'b000: decode <= 8'b01111111;
3'b001: decode <= 8'b10111111;
3'b010: decode <= 8'b11011111;
3'b011: decode <= 8'b11101111;
3'b100: decode <= 8'b11110111;
3'b101: decode <= 8'b11111011;
3'b110: decode <= 8'b11111101;
3'b111: decode <= 8'b11111110;
endcase //表结束
end
endmodule
