\u516d \u3001\u6dfb\u52a0DDR burst \u6a21\u5757<\/strong><\/h2>\n\n\n\n\u867d\u8bf4\u6211\u4eec\u5728vivado\u4e2d\u914d\u7f6e\u5e76\u751f\u6210\u597d\u4e86mig\u6a21\u5757\uff0c\u4f46\u662fmig\u6a21\u5757\u91cc\u7559\u7ed9\u7528\u6237\u90e8\u5206\u7684\u63a5\u53e3\u4ecd\u7136\u8fc7\u4e8e\u590d\u6742\uff0c\u8bfb\u5199\u6570\u636e\u65f6\u7528\u7684\u63a5\u53e3\u4fe1\u53f7\u4e5f\u6bd4\u8f83\u591a\u3002\u8fd9\u91cc\u6211\u4eec\u6211\u4eec\u589e\u52a0\u4e00\u4e2amen_burst\u6a21\u5757\u6765\u5c01\u88c5\u6211\u4eec\u7684ddr\u529f\u80fd\uff0c\u8ba9\u7528\u6237\u63a5\u53e3\u66f4\u4e3a\u901a\u7528\u548c\u7b80\u5355\u3002<\/p>\n\n\n\n
\u901a\u8fc7mem_burst\u7a0b\u5e8f, \u7528\u6237\u8bfb\u5199DDR3\u6570\u636e\u5c31\u53d8\u5f97\u7b80\u5355\u3002\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u53ea\u8981\u63a7\u5236\u5199\u8bf7\u6c42\u4fe1\u53f7wr_burst_req, \u5199\u957f\u5ea6wr_burst_len\uff0c\u5199\u5730\u5740wr_burst_add\u548c\u5199\u6570\u636ewr_burst_data\u3002\u540c\u6837\uff0c\u8bfb\u6570\u636e\u7684\u65f6\u5019\uff0c\u53ea\u8981\u63a7\u5236\u8bfb\u8bf7\u6c42\u4fe1\u53f7rd_burst_req, \u8bfb\u957f\u5ea6rd_burst_len\uff0c\u8bfb\u5730\u5740rd_burst_add,\u8bfb\u6570\u636e\u6709\u6548rd_burst_data_valid\u548c\u8bfb\u6570\u636erd_burst_data\u3002<\/p>\n\n\n\n
\u4e0b\u5217mem_burst.v \u51fa\u5904 \uff1a\u9ed1\u91d1FPGA\u6559\u7a0b<\/strong><\/p>\n\n\n\n
module mem_burst
#(
\tparameter MEM_DATA_BITS = 64,
\tparameter ADDR_BITS = 24
)
(
\tinput rst,
\tinput mem_clk,
\tinput rd_burst_req,
\tinput wr_burst_req,
\tinput[9:0] rd_burst_len,
\tinput[9:0] wr_burst_len,
\tinput[ADDR_BITS - 1:0] rd_burst_addr,
\tinput[ADDR_BITS - 1:0] wr_burst_addr,
\toutput rd_burst_data_valid,
\toutput wr_burst_data_req,
\toutput[MEM_DATA_BITS - 1:0] rd_burst_data,
\tinput[MEM_DATA_BITS - 1:0] wr_burst_data,
\toutput rd_burst_finish,
\toutput wr_burst_finish,
\toutput burst_finish,
\t
\t\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
output[ADDR_BITS-1:0] app_addr,
output[2:0] app_cmd,
output app_en,
output [MEM_DATA_BITS-1:0] app_wdf_data,
output app_wdf_end,
output [MEM_DATA_BITS\/8-1:0] app_wdf_mask,
output app_wdf_wren,
input [MEM_DATA_BITS-1:0] app_rd_data,
input app_rd_data_end,
input app_rd_data_valid,
input app_rdy,
input app_wdf_rdy,
input ui_clk_sync_rst,
input init_calib_complete
);
assign app_wdf_mask = {MEM_DATA_BITS\/8{1'b0}};
localparam IDLE = 3'd0;
localparam MEM_READ = 3'd1;
localparam MEM_READ_WAIT = 3'd2;
localparam MEM_WRITE = 3'd3;
localparam MEM_WRITE_WAIT = 3'd4;
localparam READ_END = 3'd5;
localparam WRITE_END = 3'd6;
localparam MEM_WRITE_FIRST_READ = 3'd7;
reg[2:0] state;\t
reg[9:0] rd_addr_cnt;
reg[9:0] rd_data_cnt;
reg[9:0] wr_addr_cnt;
reg[9:0] wr_data_cnt;
reg[2:0] app_cmd_r;
reg[ADDR_BITS-1:0] app_addr_r;
reg app_en_r;
reg app_wdf_end_r;
reg app_wdf_wren_r;
assign app_cmd = app_cmd_r;
assign app_addr = app_addr_r;
assign app_en = app_en_r;
assign app_wdf_end = app_wdf_end_r;
assign app_wdf_data = wr_burst_data;
assign app_wdf_wren = app_wdf_wren_r & app_wdf_rdy;
assign rd_burst_finish = (state == READ_END);
assign wr_burst_finish = (state == WRITE_END);
assign burst_finish = rd_burst_finish | wr_burst_finish;
assign rd_burst_data = app_rd_data;
assign rd_burst_data_valid = app_rd_data_valid;
assign wr_burst_data_req = (state == MEM_WRITE) & app_wdf_rdy ;
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\tbegin
\t\tapp_wdf_wren_r <= 1'b0;
\tend
\telse if(app_wdf_rdy)
\t\tapp_wdf_wren_r <= wr_burst_data_req;
end
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\tbegin
\t\tstate <= IDLE;
\t\tapp_cmd_r <= 3'b000;
\t\tapp_addr_r <= 0;
\t\tapp_en_r <= 1'b0;
\t\trd_addr_cnt <= 0;
\t\trd_data_cnt <= 0;
\t\twr_addr_cnt <= 0;
\t\twr_data_cnt <= 0;
\t\tapp_wdf_end_r <= 1'b0;
\tend
\telse if(init_calib_complete === 1'b1)
\tbegin
\t\tcase(state)
\t\t\tIDLE:
\t\t\tbegin
\t\t\t\tif(rd_burst_req)
\t\t\t\tbegin
\t\t\t\t\tstate <= MEM_READ;
\t\t\t\t\tapp_cmd_r <= 3'b001;
\t\t\t\t\tapp_addr_r <= {rd_burst_addr,3'd0};
\t\t\t\t\tapp_en_r <= 1'b1;
\t\t\t\tend
\t\t\t\telse if(wr_burst_req)
\t\t\t\tbegin
\t\t\t\t\tstate <= MEM_WRITE;
\t\t\t\t\tapp_cmd_r <= 3'b000;
\t\t\t\t\tapp_addr_r <= {wr_burst_addr,3'd0};
\t\t\t\t\tapp_en_r <= 1'b1;
\t\t\t\t\twr_addr_cnt <= 0;
\t\t\t\t\tapp_wdf_end_r <= 1'b1;
\t\t\t\t\twr_data_cnt <= 0;
\t\t\t\tend
\t\t\tend
\t\t\tMEM_READ:
\t\t\tbegin
\t\t\t\tif(app_rdy)
\t\t\t\tbegin
\t\t\t\t\tapp_addr_r <= app_addr_r + 8;
\t\t\t\t\tif(rd_addr_cnt == rd_burst_len - 1)
\t\t\t\t\tbegin
\t\t\t\t\t\tstate <= MEM_READ_WAIT;
\t\t\t\t\t\trd_addr_cnt <= 0;
\t\t\t\t\t\tapp_en_r <= 1'b0;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\t\trd_addr_cnt <= rd_addr_cnt + 1;
\t\t\t\tend
\t\t\t\t
\t\t\t\tif(app_rd_data_valid)
\t\t\t\tbegin
\t\t\t\t\tif(rd_data_cnt == rd_burst_len - 1)
\t\t\t\t\tbegin
\t\t\t\t\t\trd_data_cnt <= 0;
\t\t\t\t\t\tstate <= READ_END;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\tbegin
\t\t\t\t\t\trd_data_cnt <= rd_data_cnt + 1;
\t\t\t\t\tend
\t\t\t\tend
\t\t\tend
\t\t\tMEM_READ_WAIT:
\t\t\tbegin
\t\t\t\tif(app_rd_data_valid)
\t\t\t\tbegin
\t\t\t\t\tif(rd_data_cnt == rd_burst_len - 1)
\t\t\t\t\tbegin
\t\t\t\t\t\trd_data_cnt <= 0;
\t\t\t\t\t\tstate <= READ_END;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\tbegin
\t\t\t\t\t\trd_data_cnt <= rd_data_cnt + 1;
\t\t\t\t\tend
\t\t\t\tend
\t\t\tend
\t\t\tMEM_WRITE_FIRST_READ:
\t\t\tbegin
\t\t\t\tapp_en_r <= 1'b1;
\t\t\t\tstate <= MEM_WRITE;
\t\t\t\twr_addr_cnt <= 0;
\t\t\tend
\t\t\tMEM_WRITE:
\t\t\tbegin
\t\t\t\tif(app_rdy)
\t\t\t\tbegin
\t\t\t\t\tapp_addr_r <= app_addr_r + 'b1000;
\t\t\t\t\tif(wr_addr_cnt == wr_burst_len - 1)
\t\t\t\t\tbegin
\t\t\t\t\t\tapp_wdf_end_r <= 1'b0;
\t\t\t\t\t\tapp_en_r <= 1'b0;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\tbegin
\t\t\t\t\t\twr_addr_cnt <= wr_addr_cnt + 1;
\t\t\t\t\tend
\t\t\t\tend
\t\t\t\t\t
\t\t\t\tif(wr_burst_data_req)
\t\t\t\tbegin
\t\t\t\t\t
\t\t\t\t\tif(wr_data_cnt == wr_burst_len - 1)
\t\t\t\t\tbegin\t
\t\t\t\t\t\tstate <= MEM_WRITE_WAIT;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\tbegin
\t\t\t\t\t\twr_data_cnt <= wr_data_cnt + 1;
\t\t\t\t\tend
\t\t\t\tend
\t\t\t\t
\t\t\tend
\t\t\tREAD_END:
\t\t\t\tstate <= IDLE;
\t\t\tMEM_WRITE_WAIT:
\t\t\tbegin
\t\t\t\tif(app_rdy)
\t\t\t\tbegin
\t\t\t\t\tapp_addr_r <= app_addr_r + 'b1000;
\t\t\t\t\tif(wr_addr_cnt == wr_burst_len - 1)
\t\t\t\t\tbegin
\t\t\t\t\t\tapp_wdf_end_r <= 1'b0;
\t\t\t\t\t\tapp_en_r <= 1'b0;
\t\t\t\t\t\tif(app_wdf_rdy)
\t\t\t\t\t\t\tstate <= WRITE_END;
\t\t\t\t\tend
\t\t\t\t\telse
\t\t\t\t\tbegin
\t\t\t\t\t\twr_addr_cnt <= wr_addr_cnt + 1;
\t\t\t\t\tend
\t\t\t\tend
\t\t\t\telse if(~app_en_r & app_wdf_rdy)
\t\t\t\t\tstate <= WRITE_END;
\t\t\t\t
\t\t\tend
\t\t\tWRITE_END:
\t\t\t\tstate <= IDLE;
\t\t\tdefault:
\t\t\t\tstate <= IDLE;
\t\tendcase
\tend
end
endmodule <\/pre>\n\n\n\nmem_burst.v\u7a0b\u5e8f\u7684\u529f\u80fd\u5c31\u662f\u628a\u5916\u90e8\u7684burst\u8bfb\u8bf7\u6c42\u548c\u5199\u8bf7\u6c42\u8f6c\u5316\u6210DDR3 IP\u7528\u6237\u63a5\u53e3\u7684\u6240\u9700\u7684\u4fe1\u53f7\u548c\u65f6\u5e8f\u3002\u4e0b\u9762\u5206\u522b\u662f\u8bfb\u548c\u5199\u7684\u6d41\u7a0b:<\/p>\n\n\n\n
DDR Burst\u8bfb:
\u5f53\u7a0b\u5e8f\u5728IDLE\u72b6\u6001\u63a5\u6536\u5230\u8bfb\u8bf7\u6c42(rd_burst_req\u4e3a\u9ad8)\u65f6, \u4f1a\u5411DDR3 IP\u7684\u7528\u6237\u63a5\u53e3\u53d1\u9001\u7b2c\u4e00\u4e2a\u6570\u636e\u8bfb\u547d\u4ee4\uff08\u8bfb\u547d\u4ee4\u3001\u5730\u5740\u3001\u547d\u4ee4\u6709\u6548\uff09\u4fe1\u53f7\u3002\u5e76\u4f1a\u8fdb\u5165MEM_READ\u72b6\u6001\uff0c \u5728MEM_READ\u72b6\u6001\u91cc\uff0c\u5982\u679c\u5224\u65adDDR3 IP\u7684\u7528\u6237\u63a5\u53e3\u7a7a\u95f2\u7684\u8bdd\uff0c\u4f1a\u53d1\u9001\u5269\u4f59\u7684\u6570\u636e\u8bfb\u547d\u4ee4\uff08\u5730\u5740\u589e\u52a0\uff09\uff0c\u53d1\u9001\u5b8c\u6210\u8f6c\u5230MEM_READ_WAIT\u72b6\u6001\u3002\u53e6\u5916\u5728\u8fd9\u4e2aMEM_READ\u72b6\u6001\u91cc\uff0c\u8fd8\u9700\u8981\u5224\u65adDDR3 IP\u4eceDDR3\u91cc\u8bfb\u51fa\u7684\u6570\u636e\u662f\u5426\u6709\u6548\u6765\u7edf\u8ba1\u8bfb\u51fa\u7684\u6570\u636e\u662f\u5426\u4e3a\u8bfbburst\u957f\u5ea6\u3002\u5728MEM_READ_WAIT\u72b6\u6001\u91cc\u8bfb\u53d6\u8bfbburst\u957f\u5ea6\u7684DDR3\u7684\u6570\u636e\u3002\u6570\u636e\u5168\u90e8\u8bfb\u51fa\u5b8c\u6210\u540e\u8fdb\u5165READ_END\u72b6\u6001\uff0c\u518d\u8fd4\u56deIDLE\u72b6\u6001\u3002<\/p>\n\n\n\n
DDR Burst\u5199:
\u5f53\u7a0b\u5e8f\u5728IDLE\u72b6\u6001\u63a5\u6536\u5230\u5199\u8bf7\u6c42(wr_burst_req\u4e3a\u9ad8)\u65f6, \u4f1a\u5411DDR3 IP\u7684\u7528\u6237\u63a5\u53e3\u53d1\u9001\u7b2c\u4e00\u4e2a\u6570\u636e\u5199\u547d\u4ee4\uff08\u5199\u547d\u4ee4\u3001\u5730\u5740\u3001\u547d\u4ee4\u6709\u6548\uff09\u4fe1\u53f7\u3002\u5e76\u4f1a\u8fdb\u5165MEM_WRITE\u72b6\u6001, \u5728MEM_WRITE\u72b6\u6001\u91cc\uff0c\u5982\u679c\u5224\u65adDDR3 IP\u7684\u7528\u6237\u63a5\u53e3\u7a7a\u95f2\u7684\u8bdd\uff0c\u4f1a\u53d1\u9001\u5269\u4f59\u7684\u6570\u636e\u5199\u547d\u4ee4\uff08\u5730\u5740\u589e\u52a0\uff09\uff0c\u540c\u65f6\u5728\u8fd9\u4e2aMEM_WRITE\u72b6\u6001\u91cc\uff0c\u8fd8\u4f1a\u5411DDR3 IP\u7684\u6570\u636eFIFO\u91cc\u5199\u5165\u8981\u5199\u5230DDR\u7684\u6570\u636e\u3002\u5f53\u5199\u5165\u5230DDR3 IP\u7684FIFO\u7684\u6570\u636e\u957f\u5ea6\u957f\u5ea6\u4e3a\u5199burst\u957f\u5ea6\u65f6\u8f6c\u5230MEM_WRITE_WAIT\u72b6\u6001\u3002\u5728MEM_WRITE_WAIT\u72b6\u6001\uff0c\u5224\u65adDDR\u6570\u636e\u5199\u547d\u4ee4\u662f\u5426\u53d1\u9001\u5b8c\u6210\uff0c\u53d1\u9001\u5b8c\u6210\u5c31\u8fdb\u5165WRITE_END\u72b6\u6001\uff0c\u518d\u8fd4\u56deIDLE\u72b6\u6001\u3002
\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5411DDR3 IP\u7684\u7528\u6237\u63a5\u53e3\u53d1\u9001\u5199\u547d\u4ee4\u548c\u5199\u5165DDR\u7684\u6570\u636e\u662f\u72ec\u7acb\u7684\uff0c\u56e0\u4e3a\u5199\u5165\u5230DDR\u7684\u6570\u636e\u662f\u9700\u8981\u5148\u5b58\u50a8\u5230DDR3 IP\u7684FIFO\u4e2d\u3002\u53ea\u8981app_wdf_rdy\u6709\u6548\uff0c\u5c31\u53ef\u4ee5\u5f80DDR3 IP\u91cc\u5199\u5165\u6570\u636e\u3002\u5199\u5165\u5230DDR3\u7684\u6570\u636e\u9700\u8981\u63d0\u524d\u51c6\u5907\u597d\uff0c\u8fd9\u91cc\u6709\u4e00\u4e2awr_burst_data_req\u4fe1\u53f7\u6765\u8bf7\u6c42\u7528\u6237\u63d0\u524d\u51c6\u5907\u8981\u5199\u5165\u7684DDR3\u7684\u6570\u636e\u3002<\/p>\n\n\n\n
\u4e03\u3001\u6dfb\u52a0 DDR3\u7684\u6d4b\u8bd5\u7a0b\u5e8f<\/strong><\/h2>\n\n\n\n\u4e0b\u5217mem_test.v \u51fa\u5904 \uff1a\u9ed1\u91d1FPGA\u6559\u7a0b<\/strong><\/p>\n\n\n\nmodule mem_test
#(
\tparameter MEM_DATA_BITS = 64,
\tparameter ADDR_BITS = 24
)
(
\tinput rst,
\tinput mem_clk,
\toutput reg rd_burst_req,
\toutput reg wr_burst_req,
\toutput reg[9:0] rd_burst_len,
\toutput reg[9:0] wr_burst_len,
\toutput reg[ADDR_BITS - 1:0] rd_burst_addr,
\toutput reg[ADDR_BITS - 1:0] wr_burst_addr,
\tinput rd_burst_data_valid,
\tinput wr_burst_data_req,
\tinput[MEM_DATA_BITS - 1:0] rd_burst_data,
\toutput[MEM_DATA_BITS - 1:0] wr_burst_data,
\tinput rd_burst_finish,
\tinput wr_burst_finish,
\toutput reg error
);
localparam IDLE = 3'd0;
localparam MEM_READ = 3'd1;
localparam MEM_WRITE = 3'd2;
reg[2:0] state;
reg[7:0] wr_cnt;
reg[MEM_DATA_BITS - 1:0] wr_burst_data_reg;
assign wr_burst_data = wr_burst_data_reg;
reg[7:0] rd_cnt;
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\t\terror <= 1'b0;
\telse
\t if(error==0)begin
\t\t error <= (state == MEM_READ) && rd_burst_data_valid && (rd_burst_data != {(MEM_DATA_BITS\/8){rd_cnt}});
\t\tend
end
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\tbegin
\t\twr_burst_data_reg <= {MEM_DATA_BITS{1'b0}};
\t\twr_cnt <= 8'd0;
\tend
\telse if(state == MEM_WRITE)
\tbegin
\t\tif(wr_burst_data_req)
\t\t\tbegin
\t\t\t\twr_burst_data_reg <= {(MEM_DATA_BITS\/8){wr_cnt}};
\t\t\t\twr_cnt <= wr_cnt + 8'd1;
\t\t\tend
\t\telse if(wr_burst_finish)
\t\t\twr_cnt <= 8'd0;
\tend
end
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\tbegin
\t\trd_cnt <= 8'd0;
\tend
\telse if(state == MEM_READ)
\tbegin
\t\tif(rd_burst_data_valid)
\t\t\tbegin
\t\t\t\trd_cnt <= rd_cnt + 8'd1;
\t\t\tend
\t\telse if(rd_burst_finish)
\t\t\trd_cnt <= 8'd0;
\tend
\telse
\t\trd_cnt <= 8'd0;
end
always@(posedge mem_clk or posedge rst)
begin
\tif(rst)
\tbegin
\t\tstate <= IDLE;
\t\twr_burst_req <= 1'b0;
\t\trd_burst_req <= 1'b0;
\t\trd_burst_len <= 10'd128;
\t\twr_burst_len <= 10'd128;
\t\trd_burst_addr <= 0;
\t\twr_burst_addr <= 0;
\tend
\telse
\tbegin
\t\tcase(state)
\t\t\tIDLE:
\t\t\tbegin
\t\t\t\tstate <= MEM_WRITE;
\t\t\t\twr_burst_req <= 1'b1;
\t\t\t\twr_burst_len <= 10'd128;
\t\t\tend
\t\t\tMEM_WRITE:
\t\t\tbegin
\t\t\t\tif(wr_burst_finish)
\t\t\t\tbegin
\t\t\t\t\tstate <= MEM_READ;
\t\t\t\t\twr_burst_req <= 1'b0;
\t\t\t\t\trd_burst_req <= 1'b1;
\t\t\t\t\trd_burst_len <= 10'd128;
\t\t\t\t\trd_burst_addr <= wr_burst_addr;
\t\t\t\tend
\t\t\tend
\t\t\tMEM_READ:
\t\t\tbegin
\t\t\t\tif(rd_burst_finish)
\t\t\t\tbegin
\t\t\t\t\tstate <= MEM_WRITE;
\t\t\t\t\twr_burst_req <= 1'b1;
\t\t\t\t\twr_burst_len <= 10'd128;
\t\t\t\t\trd_burst_req <= 1'b0;
\t\t\t\t\twr_burst_addr <= wr_burst_addr + 128;
\t\t\t\tend
\t\t\tend
\t\t\tdefault:
\t\t\t\tstate <= IDLE;
\t\tendcase
\tend
end
endmodule<\/pre>\n\n\n\nmem_test.v\u6d4b\u8bd5\u7a0b\u5e8f\u91cc\u4e3b\u8981\u5b9e\u73b0ddr\u7684burst\u8bfb\u548cburst\u5199\u7684\u529f\u80fd, \u7a0b\u5e8f\u91cc\u4ea7\u751f\u8bfb\u5199\u8bf7\u6c42\u4fe1\u53f7, \u5730\u5740\u548c\u6d4b\u8bd5\u6570\u636e\u5e76\u6821\u9a8c\u8bfb\u548c\u5199\u7684\u6570\u636e\u662f\u5426\u6b63\u786e, \u8fd9\u91ccburst\u7684\u6570\u636e\u957f\u5ea6\u662f128\u3002\u5982\u679cDDR\u7684\u8bfb\u5199\u6570\u636e\u9519\u8bef(\u5199\u5165\u7684\u6570\u636e\u548c\u8bfb\u51fa\u7684\u6570\u636e\u4e0d\u4e00\u81f4\uff09\uff0cerror\u4fe1\u53f7\u4f1a\u8f93\u51fa\u9ad8\u7535\u5e73\u3002<\/p>\n\n\n\n
\u516b\u3001\u6dfb\u52a0\u9876\u5c42\u6a21\u5757top.v<\/strong><\/h2>\n\n\n\n1) \u6dfb\u52a0top.v\u9876\u5c42\u6a21\u5757<\/strong><\/p>\n\n\n\n\u4e0b\u5217top.v \u51fa\u5904 \uff1a\u9ed1\u91d1FPGA\u6559\u7a0b<\/strong>, \u4fee\u6539\u5176\u4e2d\u7684\u5730\u5740\u4f4d\u4ece28\u4f4d\u4fee\u6539\u621029\u4f4d\uff0c\u4ee5\u652f\u6301256Mx16bit\uff08512MB\uff09\u7684DDR<\/p>\n\n\n\n`timescale 1ps\/1ps
module top
(
\/\/ Inouts
inout [15:0] ddr3_dq,
inout [1:0] ddr3_dqs_n,
inout [1:0] ddr3_dqs_p,
\/\/ Outputs
output [14:0] ddr3_addr,
output [2:0] ddr3_ba,
output ddr3_ras_n,
output ddr3_cas_n,
output ddr3_we_n,
output ddr3_reset_n,
output [0:0] ddr3_ck_p,
output [0:0] ddr3_ck_n,
output [0:0] ddr3_cke,
output [1:0] ddr3_dm,
output [0:0] ddr3_odt,
\/\/system clock 50Mhz on board
input sys_clk,
output init_calib_complete,
output error,
input rst_n
);
localparam nCK_PER_CLK = 4;
localparam DQ_WIDTH = 16;
localparam ADDR_WIDTH = 29;
localparam DATA_WIDTH = 16;
localparam PAYLOAD_WIDTH = 16;
localparam APP_DATA_WIDTH = 2 * nCK_PER_CLK * PAYLOAD_WIDTH;
localparam APP_MASK_WIDTH = APP_DATA_WIDTH \/ 8;
\/\/ Wire declarations
wire [ADDR_WIDTH-1:0] app_addr;
wire [2:0] app_cmd;
wire app_en;
wire app_rdy;
wire [APP_DATA_WIDTH-1:0] app_rd_data;
wire app_rd_data_end;
wire app_rd_data_valid;
wire [APP_DATA_WIDTH-1:0] app_wdf_data;
wire app_wdf_end;
wire [APP_MASK_WIDTH-1:0] app_wdf_mask;
wire app_wdf_rdy;
wire app_sr_active;
wire app_ref_ack;
wire app_zq_ack;
wire app_wdf_wren;
wire clk;
wire rst;
wire clk_200Mhz;
clk_wiz_0 clk_refm0
(
\/\/ Clock out ports
.clk_out1(clk_200Mhz), \/\/ output clk_out1
\/\/ Status and control signals
.resetn(rst_n), \/\/ input reset
\/\/ Clock in ports
.clk_in1(sys_clk) \/\/ input clk_in1
);
mig_7series_0 u_ddr3
(
\/\/ Memory interface ports
.ddr3_addr (ddr3_addr),
.ddr3_ba (ddr3_ba),
.ddr3_cas_n (ddr3_cas_n),
.ddr3_ck_n (ddr3_ck_n),
.ddr3_ck_p (ddr3_ck_p),
.ddr3_cke (ddr3_cke),
.ddr3_ras_n (ddr3_ras_n),
.ddr3_we_n (ddr3_we_n),
.ddr3_dq (ddr3_dq),
.ddr3_dqs_n (ddr3_dqs_n),
.ddr3_dqs_p (ddr3_dqs_p),
.ddr3_reset_n (ddr3_reset_n),
.init_calib_complete (init_calib_complete),
.ddr3_dm (ddr3_dm),
.ddr3_odt (ddr3_odt),
\/\/ Application interface ports
.app_addr (app_addr),
.app_cmd (app_cmd),
.app_en (app_en),
.app_wdf_data (app_wdf_data),
.app_wdf_end (app_wdf_end),
.app_wdf_wren (app_wdf_wren),
.app_rd_data (app_rd_data),
.app_rd_data_end (app_rd_data_end),
.app_rd_data_valid (app_rd_data_valid),
.app_rdy (app_rdy),
.app_wdf_rdy (app_wdf_rdy),
.app_sr_req (1'b0),
.app_ref_req (1'b0),
.app_zq_req (1'b0),
.app_sr_active (app_sr_active),
.app_ref_ack (app_ref_ack),
.app_zq_ack (app_zq_ack),
.ui_clk (clk),
.ui_clk_sync_rst (rst),
.app_wdf_mask (app_wdf_mask),
\/\/ System Clock Ports
.sys_clk_i (clk_200Mhz),
.sys_rst (rst_n)
);
\/\/ End of User Design top instance
wire wr_burst_data_req;
wire wr_burst_finish;
wire rd_burst_finish;
wire rd_burst_req;
wire wr_burst_req;
wire[9:0] rd_burst_len;
wire[9:0] wr_burst_len;
wire[28:0] rd_burst_addr;
wire[28:0] wr_burst_addr;
wire rd_burst_data_valid;
wire[48* 8 - 1 : 0] rd_burst_data;
wire[48* 8 - 1 : 0] wr_burst_data;
mem_burst
#(
\t.MEM_DATA_BITS(APP_DATA_WIDTH),
\t.ADDR_BITS(ADDR_WIDTH)
)
mem_burst_m0
(
.rst(rst),
.mem_clk(clk),
.rd_burst_req(rd_burst_req),
.wr_burst_req(wr_burst_req),
.rd_burst_len(rd_burst_len),
.wr_burst_len(wr_burst_len),
.rd_burst_addr(rd_burst_addr),
.wr_burst_addr(wr_burst_addr),
.rd_burst_data_valid(rd_burst_data_valid),
.wr_burst_data_req(wr_burst_data_req),
.rd_burst_data(rd_burst_data),
.wr_burst_data(wr_burst_data),
.rd_burst_finish(rd_burst_finish),
.wr_burst_finish(wr_burst_finish),
.burst_finish(),
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
.app_addr(app_addr),
.app_cmd(app_cmd),
.app_en(app_en),
.app_wdf_data(app_wdf_data),
.app_wdf_end(app_wdf_end),
.app_wdf_mask(app_wdf_mask),
.app_wdf_wren(app_wdf_wren),
.app_rd_data(app_rd_data),
.app_rd_data_end(app_rd_data_end),
.app_rd_data_valid(app_rd_data_valid),
.app_rdy(app_rdy),
.app_wdf_rdy(app_wdf_rdy),
.ui_clk_sync_rst(),
.init_calib_complete(init_calib_complete)
);
mem_test
#(
\t.MEM_DATA_BITS(APP_DATA_WIDTH),
\t.ADDR_BITS(ADDR_WIDTH)
)
mem_test_m0
(
\t.rst(rst),
\t.mem_clk(clk),
\t.rd_burst_req(rd_burst_req),
\t.wr_burst_req(wr_burst_req),
\t.rd_burst_len(rd_burst_len),
\t.wr_burst_len(wr_burst_len),
\t.rd_burst_addr(rd_burst_addr),
\t.wr_burst_addr(wr_burst_addr),
\t.rd_burst_data_valid(rd_burst_data_valid),
\t.wr_burst_data_req(wr_burst_data_req),
\t.rd_burst_data(rd_burst_data),
\t.wr_burst_data(wr_burst_data),
\t.rd_burst_finish(rd_burst_finish),
\t.wr_burst_finish(wr_burst_finish),
\t.error(error)
);
wire probe0;
wire probe1;
wire probe2;
wire probe3;
wire probe4;
wire probe5;
wire probe6;
wire probe7;
wire [127 : 0] probe8;
wire [127 : 0] probe9;
wire [27 : 0] probe10;
ila_0 u_ila_0(
.clk(clk),
.probe0(probe0),
.probe1(probe1),
.probe2(probe2),
.probe3(probe3),
.probe4(probe4),
.probe5(probe5),
.probe6(probe6),
.probe7(probe7),
.probe8(probe8),
.probe9(probe9),
.probe10(probe10)\t\t\t\t\t\t
);
assign probe0 = rd_burst_req;
assign probe1 = wr_burst_req;
assign probe2 = rd_burst_data_valid;
assign probe3 = wr_burst_data_req;
assign probe4 = rd_burst_finish;
assign probe5 = wr_burst_finish;
assign probe6 = error;
assign probe7 = init_calib_complete;
assign probe8 = wr_burst_data[127:0];
assign probe9 = rd_burst_data[127:0];
assign probe10 = app_addr[27:0];
endmodule
<\/pre>\n\n\n\ntop.v\u7a0b\u5e8f\u91cc\u4f8b\u5316mem_burst\u6a21\u5757\u3001mem_test\u6a21\u5757\u548cDDR3 IP\u6a21\u5757\uff0c \u65f6\u949f\u6a21\u5757\uff0c\u53e6\u5916\u5b9e\u4f8b\u5316\u4e86\u4e00\u4e2aila_0 IP\uff0c\u7528\u6765\u89c2\u5bdfDDR Burst\u8bfb\u548cBurst\u5199\u7684\u6570\u636e\u3001\u5730\u5740\u548c\u63a7\u5236\u4fe1\u53f7\u3002<\/p>\n\n\n\n
2. \u4e3a\u4e86\u65b9\u4fbf\u89c2\u5bdf\u7ed3\u679c\uff0c\u6240\u4ee5\u6211\u4eec\u8fd8\u9700\u8981\u5411\u5de5\u7a0b\u4e2d\u518d\u6dfb\u52a0\u4e00\u4e2aila\u7684IP\u3002<\/strong><\/p>\n\n\n\n \u5728vivado\u8f6f\u4ef6\u4e2d\uff0c\u6253\u5f00IP\u6838\u76ee\u5f55\uff08IP Catalog\uff09\uff0c\u641c\u7d22ILA\uff0c\u5982\u4e0b\u56fe\u6240\u793a
![\"\"](\"http:\/\/www.hellofpga.com\/wp-content\/uploads\/2022\/10\/image-76.png\")
<\/p>\n\n\n\n
<\/ol>\n\n\n\nProbe\u7684\u6570\u91cf\u4e3a11\uff0c\u5c31\u662f11\u4e2a\u91c7\u6837\u901a\u9053\uff0c\u91c7\u6837\u7684\u6570\u636e\u6df1\u5ea6\u4e3a4096, \u91c7\u6837\u6df1\u5ea6\u8d8a\u6df1\uff0c\u91c7\u6837\u7684\u6570\u636e\u91cf\u8d8a\u5927\uff0c\u4f46\u4f1a\u6d88\u8017\u66f4\u591a\u7684FPGA\u903b\u8f91\u8d44\u6e90\u3002<\/p>\n\n\n\n![\"\"](\"http:\/\/www.hellofpga.com\/wp-content\/uploads\/2025\/11\/image-73-1024x727.png\")
<\/figure>\n\n\n\n\u518d\u5bf9\u524d\u97628\u4e2a\u901a\u9053\u8bbe\u7f6e\u6570\u636e\u5bbd\u5ea6\uff0c\u8fd9\u91cc\u56e0\u4e3a\u6211\u4eec\u6bcf\u4e2a\u901a\u9053\u53ea\u662f\u91c7\u6837\u4e00\u4e2abit\u7684\u4fe1\u53f7\uff0c\u6240\u4ee5\u6570\u636e\u5bbd\u5ea6\u90fd\u4e3a1\u3002
<\/p>\n\n\n\n![\"\"](\"http:\/\/www.hellofpga.com\/wp-content\/uploads\/2025\/11\/image-74-1024x537.png\")
<\/figure>\n\n\n\n\u518d\u8bbe\u7f6e\u540e\u97628~10\u901a\u9053\u7684\u6570\u636e\u5bbd\u5ea6\uff0c8\u901a\u9053\u548c9\u901a\u9053\u8bbe\u7f6e\u6210128\u6570\u636e\u5bbd\u5ea6\uff0c\u7528\u6765\u91c7\u6837DDR \u8bfb\u5199\u6570\u636e\uff0c 10\u901a\u9053\u8bbe\u7f6e\u621028\uff0c\u7528\u6765\u91c7\u6837DDR\u7684\u5730\u5740\u3002\u70b9\u51fbOK\u5b8c\u6210\u3002<\/p>\n\n\n\n![\"\"](\"http:\/\/www.hellofpga.com\/wp-content\/uploads\/2025\/11\/image-75-1024x327.png\")
<\/figure>\n\n\n\n3\uff09\u6dfb\u52a0XDC\u7ba1\u811a\u7ea6\u675f<\/strong><\/p>\n\n\n\n\u5728\u7ea6\u675f\u4e2d\u628aerror\u4fe1\u53f7\u8fde\u63a5\u5230\u5f00\u53d1\u677f\u7684LED1\u4e0a\uff0c\u5982\u679cerror\u4e3a\u9ad8\u7535\u5e73\uff0c\u8bf4\u660e\u6570\u636e\u51fa\u9519\uff0c\u5982\u679cerror\u4e3a\u4f4e\u7535\u5e73\uff0cLED1\u7184\u706d\uff0c\u8bf4\u660eDDR3\u8bfb\u5199\u6b63\u5e38\u3002\u53e6\u5916\u8bbe\u7f6e\u7cfb\u7edf\u7684\u590d\u4f4d\u4fe1\u53f7rst_n\u548cFPGA\u65f6\u949f\u8f93\u5165sys_clk\uff0c\u8be6\u7ec6\u7ea6\u675f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
# Clock Constraints
set_property PACKAGE_PIN Y18 [get_ports sys_clk]
set_property IOSTANDARD LVCMOS33 [get_ports sys_clk]
# Define the clock period for 50 MHz
create_clock -period 20.000 -name sys_clk -waveform {0.000 10.000} [get_ports sys_clk]
# Reset Constraints (active-low reset)
set_property PACKAGE_PIN T20 [get_ports rst_n]
set_property IOSTANDARD LVCMOS33 [get_ports rst_n]
# LED Constraints
set_property PACKAGE_PIN R17 [get_ports error]
set_property IOSTANDARD LVCMOS33 [get_ports error]
set_property PACKAGE_PIN P16 [get_ports init_calib_complete]
set_property IOSTANDARD LVCMOS33 [get_ports init_calib_complete]
<\/pre>\n\n\n\n\u4e5d\u3001\u4e0b\u8f7d\u548c\u6d4b\u8bd5<\/h2>\n\n\n\n
\u6700\u540e\u6211\u4eec\u7f16\u8bd1\u7a0b\u5e8f\u751f\u6210\u548c\u7efc\u5408\u5de5\u7a0b\uff0c\u7136\u540e\u4e0b\u8f7dbit\u6587\u4ef6\u5230FPGA\uff0c\u89c2\u5bdf\u7ed3\u679c<\/p>\n\n\n\n
\u4e0b\u8f7d\u540evivado\u4f1a\u81ea\u52a8\u6253\u5f00ila\u7684\u6ce2\u5f62\u8c03\u8bd5\u754c\u9762\uff0c\u70b9\u51fb\u201cRun trigger for ILA core\u201d \u6309\u94ae\u8fd0\u884cila\u91c7\u96c6\u6570\u636e\u3002\u53ef\u4ee5\u4ece\u4e2d\u770b\u5230write \u548cread \u7684\u7ed3\u679c<\/p>\n\n\n\n![\"\"](\"http:\/\/www.hellofpga.com\/wp-content\/uploads\/2025\/11\/image-76-1024x429.png\")
<\/figure>\n\n\n\n\n- \u53e6\u5916\u6211\u4eec\u4e5f\u53ef\u4ee5\u68c0\u67e5\u5f00\u53d1\u677f\u4e0a\u7684LED1\u548cLED2\u662f\u5426\u70b9\u4eae\uff0c\u6765\u5224\u65ad\u7cfb\u7edf\u7684\u5de5\u4f5c\u72b6\u6001\uff1a\n
\n- LED1\u4eae\u8bf4\u660eerror\u4fe1\u53f7\u4e3a\u9ad8\u8bc1\u660e\u8bfb\u5199\u51fa\u95ee\u9898\u4e86\uff0c\u5982\u679cLED1\u7184\u706d\u8bf4\u660eDDR3\u8bfb\u5199\u6570\u636e\u6b63\u786e\u3002<\/li>\n\n\n\n
- LED2\u4eae\u8bf4\u660eDDR\u521d\u59cb\u5316\u6210\u529f<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u5982\u679c\u5de5\u4f5c\u90fd\u662f\u6b63\u5e38\u7684 \u90a3\u4e48LED1\u5e94\u8be5\u662f\u4e00\u76f4\u7184\u706d\u7684\u72b6\u6001\uff0cLED2\u662f\u70b9\u4eae\u7684\u72b6\u6001<\/li>\n<\/ul>\n\n\n\n
\u8fd9\u91cc\u7b80\u5355\u8bf4\u660e\u4e00\u4e0b\u51e0\u4e2a\u9ed1\u91d1\u6559\u7a0b\u4e2d\u6ca1\u6709\u63d0\u5230\u7684\u70b9\uff1a<\/strong><\/h2>\n\n\n\n1\uff09DDR\u6570\u636e\u4f4d\u5bbd\u4e0eMIG\u7684\u4f20\u8f93\u5173\u7cfb<\/strong><\/p>\n\n\n\n\n- \u6211\u4eec\u786c\u4ef6\u7684DDR\u6570\u636e\u4f4d\u5bbd\u662f16-bit\uff0c\u4f46\u7531\u4e8eMIG\uff08\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u5b9e\u9645\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u4f20\u8f93\u7684\u6570\u636e\u662f\uff1a\n
\nnCK_PER_CLK = 4<\/code>\uff08\u6bcf\u65f6\u949f\u5468\u671f\u4f20\u8f934\u6b21\u6570\u636e\uff09<\/li>\n\n\n\n- \u53cc\u8fb9\u6cbf\u91c7\u6837\uff1a\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u4e24\u6b21\u91c7\u6837\uff08\u4e0a\u5347\u6cbf\u548c\u4e0b\u964d\u6cbf\uff09<\/li>\n\n\n\n
- 16-bit\u5b9e\u9645\u4f4d\u5bbd\uff08DDR\u63a5\u53e3\u7684\u786c\u4ef6\u5bbd\u5ea6\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u6240\u4ee5\uff0c\u6700\u7ec8\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u5b9e\u9645\u4f20\u8f93\u7684\u6570\u636e\u4f4d\u5bbd\u662f\uff1a<\/strong>\n
\n4 (nCK_PER_CLK) * 2 (\u53cc\u8fb9\u6cbf) * 16 bits = 128 bits<\/code>\uff08\u537316\u4e2a\u5b57\u8282\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n2\uff09\u5730\u5740\u7684\u7a81\u53d1\u8d77\u59cb\u5730\u5740\u8981\u6c42<\/strong><\/h3>\n\n\n\n\n- \u5730\u5740\u6b65\u957f\u4e3a8\u5b57\u8282\uff1a<\/strong>\n
\n- \u56e0\u4e3a\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u4f20\u8f9316\u4e2a\u5b57\u8282\uff0c\u6240\u4ee5\u7a81\u53d1\u8bfb\u5199\u64cd\u4f5c\u7684\u5730\u5740\u6700\u597d\u662f8\u5b57\u8282\u5bf9\u9f50\u7684\u3002<\/li>\n\n\n\n
- \u5982\u679c\u5730\u5740\u4e0d\u662f8\u5b57\u8282\u5bf9\u9f50\uff0c\u4f1a\u5bfc\u81f4\uff1a\n
\n- \u8bfb\u64cd\u4f5c\u9700\u8981\u505a\u989d\u5916\u7684\u9996\u5b57\u8282\u5904\u7406\u3002<\/li>\n\n\n\n
- \u5199\u64cd\u4f5c\u9700\u8981\u505a\u5b57\u8282\u63a9\u7801\u5904\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u8bbe\u8ba1\u4e0a\u7684\u8981\u6c42\uff1a<\/strong>\n
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