fpga实现滑动平均代码
时间: 2023-10-09 20:11:23 浏览: 332
以下是一个简单的FPGA实现滑动平均的代码示例,使用Verilog语言进行描述:
```verilog
module SlidingAverage (
input clk,
input reset,
input [7:0] data_in,
output reg [7:0] average_out
);
parameter WINDOW_SIZE = 8;
reg [7:0] buffer [WINDOW_SIZE-1:0];
reg [7:0] sum;
reg [3:0] count;
always @(posedge clk or posedge reset) begin
if (reset) begin
sum <= 0;
count <= 0;
for (int i=0; i<WINDOW_SIZE; i=i+1) begin
buffer[i] <= 0;
end
end else begin
sum <= sum - buffer[count] + data_in;
buffer[count] <= data_in;
count <= count + 1;
if (count == WINDOW_SIZE) begin
count <= 0;
end
end
end
always @(posedge clk) begin
average_out <= sum >> 3; // 右移3位相当于除以8
end
endmodule
```
上述代码中,我们使用一个大小为`WINDOW_SIZE`的缓冲区(`buffer`)来存储滑动窗口内的数据。每当有新的数据输入时,我们会将最旧的数据移出缓冲区,并将新数据添加到缓冲区末尾。通过维护一个累加和(`sum`)和计数器(`count`),我们可以实时计算滑动窗口内数据的平均值,并将结果输出。
需要注意的是,上述代码仅为示例,具体的实现方法可能会因具体的FPGA平台和应用场景而有所不同。在实际应用中,您可能需要根据具体需求对代码进行调整和优化。
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