fpga的8b10b编码解码器仿真
时间: 2023-10-02 16:07:15 浏览: 140
好的,关于FPGA的8b10b编码解码器仿真,您需要使用Verilog HDL编写代码,然后使用仿真工具进行仿真。以下是一个简单的8b10b编码器的Verilog代码示例:
```
module encoder_8b10b(input [7:0] data_in, output reg [9:0] data_out, input reset);
reg [4:0] running_disparity;
reg comma_detected;
reg [4:0] comma_count;
reg [5:0] control;
always @(posedge reset or posedge data_in) begin
if (reset) begin
running_disparity <= 5'd0;
comma_detected <= 1'b0;
comma_count <= 5'd0;
control <= 6'd0;
end else begin
if (data_in == 8'hK28.5) begin
comma_detected <= 1'b1;
comma_count <= comma_count + 1;
control <= 6'd27;
end else if (data_in == 8'hD5) begin
control <= 6'd29;
end else begin
comma_detected <= 1'b0;
comma_count <= 5'd0;
control <= {running_disparity, data_in};
end
if (comma_count == 5'd6) begin
running_disparity <= ~running_disparity;
comma_count <= 5'd0;
end
end
end
assign data_out = control;
endmodule
```
该编码器采用基本的8b10b编码规则,可以对输入的8位数据进行编码,并输出10位编码数据。
对于解码器的仿真,您可以编写类似的Verilog代码,将其与编码器一起仿真,以确保它们能够正确地通信。
在进行FPGA编程时,您可以将这些代码加载到FPGA开发板上,并使用示波器等工具进行调试和验证。
阅读全文