vivado设计数字时钟代码
时间: 2023-08-30 19:04:16 浏览: 71
抱歉,我无法提供完整的代码,因为数字时钟的实现可能因不同的硬件和需求而异。但是,我可以介绍一些数字时钟的基本代码实现。
以下是数字时钟的基本模块:
1. 时钟模块
```verilog
module clk_divider(
input clk, // 输入时钟
input [3:0] divider, // 分频系数
output reg clk_out // 输出时钟
);
reg [3:0] cnt;
always @(posedge clk) begin
if (cnt == divider - 1) begin
clk_out <= ~clk_out;
cnt <= 0;
end else begin
cnt <= cnt + 1;
end
end
endmodule
```
2. 计数器模块
```verilog
module counter(
input clk, // 输入时钟
input rst, // 复位信号
output reg [3:0] h, // 时
output reg [3:0] m, // 分
output reg [3:0] s // 秒
);
reg [3:0] sec_cnt;
reg [3:0] min_cnt;
reg [3:0] hour_cnt;
always @(posedge clk) begin
if (rst) begin
sec_cnt <= 0;
min_cnt <= 0;
hour_cnt <= 0;
end else begin
if (sec_cnt == 9) begin
sec_cnt <= 0;
if (min_cnt == 5) begin
min_cnt <= 0;
if (hour_cnt == 9) begin
hour_cnt <= 0;
end else begin
hour_cnt <= hour_cnt + 1;
end
end else begin
min_cnt <= min_cnt + 1;
end
end else begin
sec_cnt <= sec_cnt + 1;
end
end
end
assign s = {1'b0, sec_cnt};
assign m = {1'b0, min_cnt};
assign h = {1'b0, hour_cnt};
endmodule
```
3. 显示模块
```verilog
module display(
input clk,
input rst,
input [3:0] h,
input [3:0] m,
input [3:0] s,
output reg [6:0] seg,
output reg [3:0] an
);
reg [1:0] digit_sel;
wire [6:0] seg_out;
seven_seg_decoder seg_decoder(
.in({4'b0, s}),
.out(seg_out)
);
always @(posedge clk) begin
if (rst) begin
digit_sel <= 2'b00;
an <= 4'b1110;
end else begin
case (digit_sel)
2'b00: begin
seg <= seg_out;
an <= 4'b1101;
digit_sel <= 2'b01;
end
2'b01: begin
seg <= {1'b0, m};
an <= 4'b1110;
digit_sel <= 2'b10;
end
2'b10: begin
seg <= {1'b0, h};
an <= 4'b1111;
digit_sel <= 2'b00;
end
endcase
end
end
endmodule
```
注意,在实现数字时钟时,需要将这些模块连接在一起,并将数字时钟模块作为顶层模块生成比特流文件。同时,还需要根据实际硬件配置,对代码进行适当的修改。
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