verilog实现2×2卷积运算
时间: 2023-10-31 18:07:48 浏览: 42
下面是一个简单的 Verilog 实现 2x2 卷积运算的例子:
```
module conv2x2 (
input clk,
input [7:0] pixel_in,
output reg [15:0] pixel_out
);
reg [7:0] window [1:2][1:2];
reg [7:0] kernel [1:2][1:2] = { {1, 2}, {3, 4} };
integer i, j;
always @(posedge clk) begin
// Shift the window down by one row and left by one column
for (i = 1; i <= 2; i = i + 1) begin
for (j = 1; j <= 2; j = j + 1) begin
window[i][j] = window[i+1][j+1];
end
end
// Load the new pixel into the window
window[2][2] = pixel_in;
// Perform the convolution
pixel_out = 0;
for (i = 1; i <= 2; i = i + 1) begin
for (j = 1; j <= 2; j = j + 1) begin
pixel_out = pixel_out + (window[i][j] * kernel[i][j]);
end
end
end
endmodule
```
这个模块使用一个 2x2 的窗口和一个 2x2 的卷积核。它每个时钟周期处理一个像素,并输出 16 位的卷积结果。在每个时钟周期中,它将窗口向下移动一行和向左移动一列,然后将新的像素加载到窗口中,并使用卷积核执行卷积运算。