照猫画虎的学着传一下视频,跑马灯程序是在网友程序改了一下方向。
程序如下:
module LEDMO( clk, rst, led0,led1,led2,led3,led4,led5,led6,led7, led_r,led_g,led_y );
input clk; input rst;
output led0,led1,led2,led3,led4,led5,led6,led7;
output led_r,led_g,led_y;
reg[31:0] count;
reg[10:0] led_out;
always @(posedge clk or negedge rst)
begin
if(!rst)
count<=31'd0;
else
if(count==31'd220_000_000)
count<=31'd0;
else
count<=count+1'b1;
end
always @(posedge clk or negedge rst)
begin
if(!rst)
led_out <= 1'b0;
else
if(count >= 31'd0 && count < 31'd20_000_000)
led_out <= 11'b011_1111_1111;
else if(count >= 31'd20_000_000 && count < 31'd40_000_000)
led_out <= 11'b101_1111_1111;
else if(count >= 31'd40_000_000 && count < 31'd60_000_000)
led_out <= 11'b110_1111_1111;
else if(count >= 31'd60_000_000 && count < 31'd80_000_000)
led_out <= 11'b111_0111_1111;
else if(count >= 31'd80_000_000 && count < 31'd100_000_000)
led_out <= 11'b111_1011_1111;
else if(count >= 31'd100_000_000 && count < 31'd120_000_000)
led_out <= 11'b111_1101_1111;
else if(count >= 31'd120_000_000 && count < 31'd140_000_000)
led_out <= 11'b111_1110_1111;
else if(count >= 31'd140_000_000 && count < 31'd160_000_000)
led_out <= 11'b111_1111_0111;
else if(count >= 31'd160_000_000 && count < 31'd180_000_000)
led_out <= 11'b111_1111_1011;
else if(count >= 31'd180_000_000 && count < 31'd200_000_000)
led_out <= 11'b111_1111_1101;
else if(count >= 31'd200_000_000 && count < 31'd220_000_000)
led_out <= 11'b111_1111_1110;
end
assign led0 =led_out[0];
assign led1 =led_out[1];
assign led2 =led_out[2];
assign led3 =led_out[3];
assign led4 =led_out[4];
assign led5 =led_out[5];
assign led6 =led_out[6];
assign led7 =led_out[7];
assign led_r = led_out[8];
assign led_g = led_out[9];
assign led_y = led_out[10];
endmodule
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