fpga axi stream接口96位转64位verilog代码
时间: 2024-11-22 10:37:24 浏览: 17
FPGA中的AXI Stream接口是一种用于高速数据流传输的标准,而将96位的数据流转换为64位通常涉及到数据打包或拆包的过程。这是一个Verilog模块的基本示例,展示了如何通过位选择(Bit Selection)来实现这个功能:
```verilog
module axi_stream_96_to_64 (
input wire [95:0] axi_stream_in, // 96-bit incoming data stream
output reg [63:0] axi_stream_out, // 64-bit output data stream
input wire start, // Start signal for packing
input wire reset // Reset signal for initialization
);
always @(posedge clk or posedge reset) begin
if (reset) begin
axi_stream_out <= {8'b0}; // Initialize with zeros
end else if (start) begin
// Perform 96 to 64 bit conversion
axi_stream_out[55:0] <= axi_stream_in[79:24]; // Pack every 2nd word into 64 bits
axi_stream_out[63:56] <= axi_stream_in[95:79]; // Copy the remaining 8 bits
end
end
// ... other AXI Stream interface signals like tvalid, tready, etc.
endmodule
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