FallenSigh
c5072d7170
Wrap mlkem_top in an AXI4 burst slave (mlkem_axi_slave) mapped to the freed FFT slot 6 at 0x1f400000 (virtual 0xbf400000). The core runs on sys_clk/2 (25 MHz); the wrapper handles the clock-domain crossing: start toggle->pulse, wait-stated byte-preload handshake, busy/done sync, and direct readback taps (ek/dk/ct/ss). CPU drives it via a register map (CTRL/STATUS/CONFIG, d/z/msg, preload + readback windows). Wire into soc_top on the existing axiOut_6 nets (no crossbar change), add mlkem_intr on intrpt[3]. Add sdk mlkem_test example running a KeyGen->Encaps->Decaps self-consistency round trip.
32 lines
855 B
Verilog
32 lines
855 B
Verilog
// s_bram.v - Single-port behavioral RAM (shared read/write port)
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//
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// One port: either read or write per cycle (+1 cycle read latency).
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// When both rd_en and wr_en are high, write takes priority.
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// Read data is registered (1-cycle latency after rd_en).
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// No valid/ready handshake — pure memory, handshake managed at higher level.
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module s_bram #(
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parameter W = 48,
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parameter D = 512,
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parameter A = 9
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) (
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input wire clk,
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input wire rd_en,
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input wire [A-1:0] rd_addr,
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output reg [W-1:0] rd_data,
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input wire wr_en,
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input wire [A-1:0] wr_addr,
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input wire [W-1:0] wr_data
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);
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reg [W-1:0] mem [0:D-1];
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always @(posedge clk) begin
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if (wr_en)
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mem[wr_addr] <= wr_data;
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else if (rd_en)
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rd_data <= mem[rd_addr];
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end
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endmodule
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