請問各位,小弟有一題是做用六顆七段顯示器顯示000000~999999
然後從最暗到最亮,6個0是最暗,逐漸亮到6個9,用四顆DATA SW去控制0000~1001現在問題是要如何配置腳位??
以下是編譯後的程式(無誤)
module example(clk, rst, sw, seg1, seg2, seg3, seg4, seg5, seg6);
input clk, rst; //If clk = 1MHz, 1us
input [ 3: 0] sw;
output [ 7: 0] seg1, seg2, seg3, seg4, seg5, seg6;
wire [ 7: 0] seg1, seg2, seg3, seg4, seg5, seg6;
reg [31: 0] lightcnt, darkcnt;
always @(sw)
case(sw) 4'b0000: begin
lightcnt = 32'd100000; //100ms = 1us x 100000
darkcnt = 32'd500000; //500ms = 1us x 500000
end
4'b0001: begin
lightcnt = 32'd150000; //150ms
darkcnt = 32'd450000; //450ms
end
4'b0010: begin
lightcnt = 32'd200000; //200ms
darkcnt = 32'd400000; //400ms
end
4'b0011: begin
lightcnt = 32'd250000; //250ms
darkcnt = 32'd350000; //350ms
end
4'b0100: begin
lightcnt = 32'd300000; //300ms
darkcnt = 32'd300000; //300ms
end 4'b0101: begin
lightcnt = 32'd350000; //350ms
darkcnt = 32'd250000; //250ms
end
4'b0110: begin
lightcnt = 32'd400000; //400ms
darkcnt = 32'd200000; //200ms
end
4'b0111: begin
lightcnt = 32'd450000; //450ms
darkcnt = 32'd150000; //150ms
end 4'b1000: begin
lightcnt = 32'd500000; //500ms
darkcnt = 32'd100000; //100ms
end
4'b1001: begin
lightcnt = 32'd550000; //550ms
darkcnt = 32'd50000; //50ms
end
endcase timer timer(clk, rst, lightcnt, darkcnt, out);
wire [ 7: 0] seg; sevenseg_case sevenseg_case(sw,seg);
assign seg1 = out ? seg : 8'h0,
seg2 = out ? seg : 8'h0,
seg3 = out ? seg : 8'h0,
seg4 = out ? seg : 8'h0,
seg5 = out ? seg : 8'h0,
seg6 = out ? seg : 8'h0;
endmodule
module timer(clk, rst, lightcnt, darkcnt, out);
input clk, rst;
input [31: 0] lightcnt, darkcnt;
output out;
reg out;
reg [31: 0] cnt; always @(posedge clk)
if(rst) begin
cnt <=#1 32'h0;
out <=#1 1'b0;
end
else if( out & cnt == lightcnt | ~out & cnt == darkcnt) begin
cnt <=#1 32'h0;
out <=#1 ~out;
end
else
cnt <=#1 cnt + 32'h1;
endmodule 我是用MAX+plus II 10.2 BASELINE這套軟體,Device是EPF10K10TC144-4 | 
