FPGA——DDR3的ip核
- IP核配置
- 基于MIG核代码
- 基于AXI接口的DDR3
IP核配置
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基于MIG核代码
控制MIG核的信号进行读写
module MIG_APP_Drive(input i_ui_clk ,input i_ui_rst ,input init_calib_complete ,output [28:0] app_addr , output [2 :0] app_cmd , output app_en , output [255:0] app_wdf_data , output app_wdf_end , output app_wdf_wren , input [255:0] app_rd_data , input app_rd_data_end , input app_rd_data_valid , input app_rdy , input app_wdf_rdy , output [31:0] app_wdf_mask , input [1 :0] i_operation_cmd ,input [15:0] i_operation_len ,input [28:0] i_operation_addr ,input i_operation_valid ,output o_operation_ready ,input [255:0] i_write_data ,input i_write_last ,input i_write_valid ,output [255:0] o_read_data ,output o_read_valid
);/***************function**************//***************parameter*************/
localparam P_ST_INIT = 0 ,P_ST_IDLE = 1 ,P_ST_WAIT = 2 ,P_ST_WRITE = 3 ,P_ST_READ = 4 ,P_ST_READ_WAIT = 5 ;/***************port******************/ /***************mechine***************/
(* mark_debug = "true" *)reg [7 :0] r_st_current ;
reg [7 :0] r_st_next ;
reg [15:0] r_st_cnt ;/***************reg*******************/
reg [28:0] ro_app_addr ;
reg [2 :0] ro_app_cmd ;
reg ro_app_en ;
reg ro_app_wdf_wren ;
reg [31:0] ro_app_wdf_mask ;
reg ro_operation_ready ;
reg [255:0] ro_read_data ;
reg ro_read_valid ;
reg [1 :0] ri_operation_cmd ;
reg [15:0] ri_operation_len ;
reg [28:0] ri_operation_addr ;
reg r_op_act ;
reg [15:0] r_write_cnt ;
reg [15:0] r_read_cnt ;
(* mark_debug = "true" *)reg [15:0] r_read_data_cnt ;
reg [7 :0] r_init ;/***************wire******************/
wire w_op_act ;
wire [255:0] w_write_fifo_dout ;
wire w_write_fifo_empty ;
wire w_write_fifo_full ;
wire w_mig_wvalid ;
wire w_mig_rvalid ;
wire w_write_fifo_rd_en ;/***************component*************/
FIFO_256X512 FIFO_256X512_U0 (.clk (i_ui_clk ), // input wire clk.din (i_write_data ), // input wire [63 : 0] din.wr_en (i_write_valid ), // input wire wr_en.rd_en (w_write_fifo_rd_en ), // input wire rd_en.dout (w_write_fifo_dout ), // output wire [63 : 0] dout.full (w_write_fifo_full ), // output wire full.empty (w_write_fifo_empty ) // output wire empty
);
/***************assign****************/
assign app_addr = ro_app_addr ;
assign app_cmd = ro_app_cmd ;
assign app_en = ro_app_en & app_rdy ;
assign app_wdf_data = w_write_fifo_dout ;
assign app_wdf_end = app_wdf_wren ;
assign app_wdf_wren = ro_app_wdf_wren & app_rdy & app_wdf_rdy;
assign app_wdf_mask = ro_app_wdf_mask ;
assign o_operation_ready = ro_operation_ready ;
assign o_read_data = ro_read_data ;
assign o_read_valid = ro_read_valid ;
assign w_op_act = i_operation_valid & o_operation_ready;
assign w_mig_wvalid = app_rdy & app_wdf_rdy & app_en & ro_app_wdf_wren & app_cmd == 0;
assign w_write_fifo_rd_en = w_mig_wvalid ;
assign w_mig_rvalid = app_rdy & app_en & app_cmd == 1;/***************always****************/
always@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_st_current <= P_ST_INIT;else r_st_current <= r_st_next;
endalways@(*)
begincase(r_st_current)P_ST_INIT : r_st_next = &r_init ? P_ST_IDLE : P_ST_INIT;P_ST_IDLE : r_st_next = r_op_act ?ri_operation_cmd == 0 ? P_ST_WAIT : P_ST_READ: P_ST_IDLE ;P_ST_WAIT : r_st_next = r_st_cnt == 4 ? P_ST_WRITE : P_ST_WAIT ;P_ST_WRITE : r_st_next = r_write_cnt == ri_operation_len - 1 & w_mig_wvalid ? P_ST_IDLE : P_ST_WRITE ;P_ST_READ : r_st_next = r_read_cnt == ri_operation_len - 2 & w_mig_rvalid ? P_ST_READ_WAIT: P_ST_READ ;P_ST_READ_WAIT : r_st_next = r_read_data_cnt >= ri_operation_len - 2 & app_rd_data_valid ? P_ST_IDLE : P_ST_READ_WAIT ;default : r_st_next = P_ST_INIT;endcase
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_init <= 'd0;elser_init <= {r_init[6 :0],init_calib_complete};
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_st_cnt <= 'd0;else if(r_st_current != r_st_next)r_st_cnt <= 'd0;else r_st_cnt <= r_st_cnt + 1;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst) beginri_operation_cmd <= 'd0;ri_operation_len <= 'd0;ri_operation_addr <= 'd0;end else if(w_op_act) beginri_operation_cmd <= i_operation_cmd ;ri_operation_len <= i_operation_len ;ri_operation_addr <= i_operation_addr;end else beginri_operation_cmd <= ri_operation_cmd ;ri_operation_len <= ri_operation_len ;ri_operation_addr <= ri_operation_addr;endendalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_op_act <= 'd0;else r_op_act <= w_op_act;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst) beginro_app_cmd <= 'd0;ro_app_en <= 'd0;end else if(r_st_current == P_ST_WRITE) beginro_app_cmd <= 'd0;ro_app_en <= 'd1;end else if(r_st_current == P_ST_READ) beginro_app_cmd <= 'd1;ro_app_en <= 'd1;end else beginro_app_cmd <= 'd0;ro_app_en <= 'd0;endendalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)ro_app_addr <= 'd0;else if(w_op_act)ro_app_addr <= i_operation_addr;else if(w_mig_wvalid)ro_app_addr <= ro_app_addr + 8 ;else if(w_mig_rvalid)ro_app_addr <= ro_app_addr + 8 ;else ro_app_addr <= ro_app_addr;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)ro_app_wdf_mask <= 'd0;else ro_app_wdf_mask <= 'd0;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)ro_app_wdf_wren <= 'd0;else if(r_st_current == P_ST_WRITE)ro_app_wdf_wren <= 'd1;else ro_app_wdf_wren <= 'd0;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst) beginro_read_data <= 'd0;ro_read_valid <= 'd0;end else beginro_read_data <= app_rd_data;ro_read_valid <= app_rd_data_valid;end
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)ro_operation_ready <= 'd0;else if(w_op_act)ro_operation_ready <= 'd0;else if(r_st_next == P_ST_IDLE)ro_operation_ready <= 'd1;else ro_operation_ready <= ro_operation_ready;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_write_cnt <= 'd0;else if(r_st_current == P_ST_IDLE)r_write_cnt <= 'd0;else if(w_mig_wvalid)r_write_cnt <= r_write_cnt + 1;else r_write_cnt <= r_write_cnt;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_read_cnt <= 'd0;else if(r_st_current == P_ST_IDLE)r_read_cnt <= 'd0;else if(w_mig_rvalid)r_read_cnt <= r_read_cnt + 1;else r_read_cnt <= r_read_cnt;
endalways@(posedge i_ui_clk,posedge i_ui_rst)
beginif(i_ui_rst)r_read_data_cnt <= 'd0;else if(r_st_current == P_ST_IDLE)r_read_data_cnt <= 'd0;else if(app_rd_data_valid) r_read_data_cnt <= r_read_data_cnt + 1;else r_read_data_cnt <= r_read_data_cnt;
endendmodule
示列
DDR3_MIG u_DDR3_MIG (// 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_reset_n (ddr3_reset_n ),.ddr3_we_n (ddr3_we_n ),.ddr3_dq (ddr3_dq ),.ddr3_dqs_n (ddr3_dqs_n ),.ddr3_dqs_p (ddr3_dqs_p ),.ddr3_cs_n (ddr3_cs_n ),.ddr3_dm (ddr3_dm ),.ddr3_odt (ddr3_odt ),// Application interface ports.init_calib_complete (w_init_calib_complete ),.app_addr (w_app_addr ),.app_cmd (w_app_cmd ),.app_en (w_app_en ),.app_wdf_data (w_app_wdf_data ),.app_wdf_end (w_app_wdf_end ),.app_wdf_wren (w_app_wdf_wren ),.app_rd_data (w_app_rd_data ),.app_rd_data_end (w_app_rd_data_end ),.app_rd_data_valid (w_app_rd_data_valid ),.app_rdy (w_app_rdy ),.app_wdf_rdy (w_app_wdf_rdy ),.app_wdf_mask (w_app_wdf_mask ),.app_sr_req (0 ),.app_ref_req (0 ),.app_zq_req (0 ),.app_sr_active ( ),.app_ref_ack ( ),.app_zq_ack ( ),.ui_clk (ui_clk ),.ui_clk_sync_rst (ui_clk_sync_rst ),// System Clock Ports.sys_clk_p (i_clk_200m_p ),.sys_clk_n (i_clk_200m_n ),.sys_rst (0 )
);MIG_APP_Drive MIG_APP_Drive_u0(.i_ui_clk (ui_clk ),.i_ui_rst (ui_clk_sync_rst ),.init_calib_complete (w_init_calib_complete ),.app_addr (w_app_addr ), .app_cmd (w_app_cmd ), .app_en (w_app_en ), .app_wdf_data (w_app_wdf_data ), .app_wdf_end (w_app_wdf_end ), .app_wdf_wren (w_app_wdf_wren ), .app_rd_data (w_app_rd_data ), .app_rd_data_end (w_app_rd_data_end ), .app_rd_data_valid (w_app_rd_data_valid ), .app_rdy (w_app_rdy ), .app_wdf_rdy (w_app_wdf_rdy ), .app_wdf_mask (w_app_wdf_mask ), .i_operation_cmd (w_app_operation_cmd ),.i_operation_len (w_app_operation_len ),.i_operation_addr (w_app_operation_addr ),.i_operation_valid (w_app_operation_valid ),.o_operation_ready (w_app_operation_ready ), .i_write_data (w_app_write_data ),.i_write_last (w_app_write_last ),.i_write_valid (w_app_write_valid ),.o_read_data (w_app_read_data ),.o_read_valid (w_app_read_valid )
);
基于AXI接口的DDR3
module AXI_Master_Drive(input i_clk ,input i_rst ,(* mark_debug = "true" *) input i_init_calib_complete ,output [3 :0] m_axi_awid ,output [29:0] m_axi_awaddr ,output [7 :0] m_axi_awlen ,output [2 :0] m_axi_awsize , output [1 :0] m_axi_awburst , output [0 :0] m_axi_awlock , output [3 :0] m_axi_awcache , output [2 :0] m_axi_awprot , output [3 :0] m_axi_awqos , output m_axi_awvalid ,
(* mark_debug = "true" *) input m_axi_awready , output [255:0] m_axi_wdata , output [31:0] m_axi_wstrb , output m_axi_wlast , output m_axi_wvalid ,
(* mark_debug = "true" *) input m_axi_wready , input [3 :0] m_axi_bid , input [1 :0] m_axi_bresp ,
(* mark_debug = "true" *) input m_axi_bvalid , output m_axi_bready , output [3 :0] m_axi_arid , output [29:0] m_axi_araddr , output [7 :0] m_axi_arlen ,output [2 :0] m_axi_arsize , output [1 :0] m_axi_arburst , output [0 :0] m_axi_arlock , output [3 :0] m_axi_arcache , output [2 :0] m_axi_arprot , output [3 :0] m_axi_arqos , output m_axi_arvalid ,
(* mark_debug = "true" *) input m_axi_arready , input [3 :0] m_axi_rid , input [255:0] m_axi_rdata , input [1 :0] m_axi_rresp , input m_axi_rlast , input m_axi_rvalid , output m_axi_rready
);/***************function**************//***************parameter*************/
localparam P_ST_INIT = 0 ,P_ST_IDLE = 1 ,P_ST_WRITE = 2 ,P_ST_READ = 3 ;localparam P_LEN = 16 ;/***************port******************/ /***************mechine***************/
(* mark_debug = "true" *)reg [7 :0] r_st_current ;
reg [7 :0] r_st_next ;
reg [15:0] r_st_cnt ;/***************reg*******************/
reg [3 :0] ro_m_axi_awid ;
(* mark_debug = "true" *)reg [29:0] ro_m_axi_awaddr ;
(* mark_debug = "true" *)reg [7 :0] ro_m_axi_awlen ;
reg [2 :0] ro_m_axi_awsize ;
reg [1 :0] ro_m_axi_awburst ;
reg [0 :0] ro_m_axi_awlock ;
reg [3 :0] ro_m_axi_awcache ;
reg [2 :0] ro_m_axi_awprot ;
reg [3 :0] ro_m_axi_awqos ;
(* mark_debug = "true" *)reg ro_m_axi_awvalid ;
(* mark_debug = "true" *)reg [255:0] ro_m_axi_wdata ;
reg [31:0] ro_m_axi_wstrb ;
(* mark_debug = "true" *)reg ro_m_axi_wlast ;
(* mark_debug = "true" *)reg ro_m_axi_wvalid ;
(* mark_debug = "true" *)reg ro_m_axi_bready ;
reg [3 :0] ro_m_axi_arid ;
(* mark_debug = "true" *)reg [29:0] ro_m_axi_araddr ;
(* mark_debug = "true" *)reg [7 :0] ro_m_axi_arlen ;
reg [2 :0] ro_m_axi_arsize ;
reg [1 :0] ro_m_axi_arburst ;
reg [0 :0] ro_m_axi_arlock ;
reg [3 :0] ro_m_axi_arcache ;
reg [2 :0] ro_m_axi_arprot ;
reg [3 :0] ro_m_axi_arqos ;
(* mark_debug = "true" *)reg ro_m_axi_arvalid ;
(* mark_debug = "true" *)reg ro_m_axi_rready ;
reg [3 :0] ri_m_axi_rid ;
(* mark_debug = "true" *)reg [255:0] ri_m_axi_rdata ;
reg [1 :0] ri_m_axi_rresp ;
(* mark_debug = "true" *)reg ri_m_axi_rlast ;
(* mark_debug = "true" *)reg ri_m_axi_rvalid ;
reg [15:0] r_read_cnt;/***************wire******************/
wire w_aw_act ;
wire w_w_act ;
wire w_br_act ;
wire w_ar_act ;
wire w_r_act ;/***************component*************//***************assign****************/
assign m_axi_awid = ro_m_axi_awid ;
assign m_axi_awaddr = ro_m_axi_awaddr ;
assign m_axi_awlen = ro_m_axi_awlen ;
assign m_axi_awsize = ro_m_axi_awsize ;
assign m_axi_awburst = ro_m_axi_awburst ;
assign m_axi_awlock = ro_m_axi_awlock ;
assign m_axi_awcache = ro_m_axi_awcache ;
assign m_axi_awprot = ro_m_axi_awprot ;
assign m_axi_awqos = ro_m_axi_awqos ;
assign m_axi_awvalid = ro_m_axi_awvalid ;
assign m_axi_wdata = ro_m_axi_wdata ;
assign m_axi_wstrb = ro_m_axi_wstrb ;
assign m_axi_wlast = ro_m_axi_wlast ;
assign m_axi_wvalid = ro_m_axi_wvalid ;
assign m_axi_bready = ro_m_axi_bready ;
assign m_axi_arid = ro_m_axi_arid ;
assign m_axi_araddr = ro_m_axi_araddr ;
assign m_axi_arlen = ro_m_axi_arlen ;
assign m_axi_arsize = ro_m_axi_arsize ;
assign m_axi_arburst = ro_m_axi_arburst ;
assign m_axi_arlock = ro_m_axi_arlock ;
assign m_axi_arcache = ro_m_axi_arcache ;
assign m_axi_arprot = ro_m_axi_arprot ;
assign m_axi_arqos = ro_m_axi_arqos ;
assign m_axi_arvalid = ro_m_axi_arvalid ;
assign m_axi_rready = ro_m_axi_rready ;
assign w_aw_act = m_axi_awvalid & m_axi_awready ;//写地址激活信号
assign w_w_act = m_axi_wvalid & m_axi_wready ;//写数据激活信号
assign w_br_act = m_axi_bvalid & m_axi_bready ;//响应激活信号
assign w_ar_act = m_axi_arvalid & m_axi_arready ;//读地址激活信号
assign w_r_act = m_axi_rvalid & m_axi_rready ;//读数据信号/***************always****************/
//第一段状态机
always@(posedge i_clk,posedge i_rst)
beginif(i_rst)r_st_current <= P_ST_IDLE;elser_st_current <= r_st_next;
end//第二段
always@(*)
begincase(r_st_current)P_ST_INIT : r_st_next <= i_init_calib_complete ? P_ST_IDLE : P_ST_INIT;P_ST_IDLE : r_st_next <= P_ST_WRITE;P_ST_WRITE : r_st_next <= w_br_act ? P_ST_READ : P_ST_WRITE;P_ST_READ : r_st_next <= r_read_cnt == P_LEN - 1 && w_r_act ? P_ST_IDLE : P_ST_READ;default : r_st_next <= P_ST_IDLE;endcase
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)r_st_cnt <= 'd0;else if(r_st_current != r_st_next)r_st_cnt <= 'd0;else r_st_cnt <= r_st_cnt + 1;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst) beginro_m_axi_awid <= 'd0;ro_m_axi_awaddr <= 'd0;ro_m_axi_awlen <= 'd0;ro_m_axi_awsize <= 'd0;ro_m_axi_awburst <= 'd0;ro_m_axi_awlock <= 'd0;ro_m_axi_awcache <= 'd0;ro_m_axi_awprot <= 'd0;ro_m_axi_awqos <= 'd0;ro_m_axi_awvalid <= 'd0;end else if(w_aw_act) beginro_m_axi_awid <= 'd0;ro_m_axi_awaddr <= 'd0;ro_m_axi_awlen <= 'd0;ro_m_axi_awsize <= 'd0;ro_m_axi_awburst <= 'd0;ro_m_axi_awlock <= 'd0;ro_m_axi_awcache <= 'd0;ro_m_axi_awprot <= 'd0;ro_m_axi_awqos <= 'd0;ro_m_axi_awvalid <= 'd0;end else if(r_st_current == P_ST_WRITE && r_st_cnt == 0) beginro_m_axi_awid <= 'd0;ro_m_axi_awaddr <= 'd0;ro_m_axi_awlen <= P_LEN - 1;ro_m_axi_awsize <= 3'b101;//32bytero_m_axi_awburst <= 'd1;//突发模式ro_m_axi_awlock <= 'd0;ro_m_axi_awcache <= 4'b0010;//无缓存ro_m_axi_awprot <= 'd0;ro_m_axi_awqos <= 'd0;ro_m_axi_awvalid <= 'd1;//有效拉高end else beginro_m_axi_awid <= ro_m_axi_awid ;ro_m_axi_awaddr <= ro_m_axi_awaddr ;ro_m_axi_awlen <= ro_m_axi_awlen ;ro_m_axi_awsize <= ro_m_axi_awsize ;ro_m_axi_awburst <= ro_m_axi_awburst;ro_m_axi_awlock <= ro_m_axi_awlock ;ro_m_axi_awcache <= ro_m_axi_awcache;ro_m_axi_awprot <= ro_m_axi_awprot ;ro_m_axi_awqos <= ro_m_axi_awqos ;ro_m_axi_awvalid <= ro_m_axi_awvalid;end
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_wdata <= 'd0;else if(ro_m_axi_wdata == P_LEN - 1 && w_w_act)ro_m_axi_wdata <= 'd0;else if(w_w_act)ro_m_axi_wdata <= ro_m_axi_wdata + 1;else ro_m_axi_wdata <= ro_m_axi_wdata;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_wvalid <= 'd0;else if(ro_m_axi_wdata == P_LEN - 1 && w_w_act)ro_m_axi_wvalid <= 'd0;else if(w_aw_act) ro_m_axi_wvalid <= 'd1;else ro_m_axi_wvalid <= ro_m_axi_wvalid;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_wlast <= 'd0;else if(ro_m_axi_wdata == P_LEN - 1 && w_w_act)ro_m_axi_wlast <= 'd0;else if(ro_m_axi_wdata == P_LEN - 2) ro_m_axi_wlast <= 'd1;else ro_m_axi_wlast <= ro_m_axi_wlast;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_wstrb <= 32'hffffffff;else ro_m_axi_wstrb <= 32'hffffffff;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_bready <= 'd0;else if(w_br_act)ro_m_axi_bready <= 'd0;else if(ro_m_axi_wlast)ro_m_axi_bready <= 'd1;else ro_m_axi_bready <= ro_m_axi_bready;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst) beginro_m_axi_arid <= 'd0;ro_m_axi_araddr <= 'd0;ro_m_axi_arlen <= 'd0;ro_m_axi_arsize <= 'd0;ro_m_axi_arburst <= 'd0;ro_m_axi_arlock <= 'd0;ro_m_axi_arcache <= 'd0;ro_m_axi_arprot <= 'd0;ro_m_axi_arqos <= 'd0;ro_m_axi_arvalid <= 'd0;end else if(w_ar_act) beginro_m_axi_arid <= 'd0;ro_m_axi_araddr <= 'd0;ro_m_axi_arlen <= 'd0;ro_m_axi_arsize <= 'd0;ro_m_axi_arburst <= 'd0;ro_m_axi_arlock <= 'd0;ro_m_axi_arcache <= 'd0;ro_m_axi_arprot <= 'd0;ro_m_axi_arqos <= 'd0;ro_m_axi_arvalid <= 'd0;end else if(r_st_current == P_ST_READ && r_st_cnt == 0) beginro_m_axi_arid <= 'd0;ro_m_axi_araddr <= 'd0;ro_m_axi_arlen <= P_LEN - 1;ro_m_axi_arsize <= 3'b101;ro_m_axi_arburst <= 'd1;ro_m_axi_arlock <= 'd0;ro_m_axi_arcache <= 4'b0010;ro_m_axi_arprot <= 'd0;ro_m_axi_arqos <= 'd0;ro_m_axi_arvalid <= 'd1;end else beginro_m_axi_arid <= ro_m_axi_arid ;ro_m_axi_araddr <= ro_m_axi_araddr ;ro_m_axi_arlen <= ro_m_axi_arlen ;ro_m_axi_arsize <= ro_m_axi_arsize ;ro_m_axi_arburst <= ro_m_axi_arburst;ro_m_axi_arlock <= ro_m_axi_arlock ;ro_m_axi_arcache <= ro_m_axi_arcache;ro_m_axi_arprot <= ro_m_axi_arprot ;ro_m_axi_arqos <= ro_m_axi_arqos ;ro_m_axi_arvalid <= ro_m_axi_arvalid;end
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)ro_m_axi_rready <= 'd0;else if(r_read_cnt == P_LEN - 1 && w_r_act)ro_m_axi_rready <= 'd0;else if(w_ar_act)ro_m_axi_rready <= 'd1;else ro_m_axi_rready <= ro_m_axi_rready;
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst) beginri_m_axi_rid <= 'd0;ri_m_axi_rdata <= 'd0;ri_m_axi_rresp <= 'd0;ri_m_axi_rlast <= 'd0;ri_m_axi_rvalid <= 'd0;end else beginri_m_axi_rid <= m_axi_rid ;ri_m_axi_rdata <= m_axi_rdata ;ri_m_axi_rresp <= m_axi_rresp ;ri_m_axi_rlast <= m_axi_rlast ;ri_m_axi_rvalid <= m_axi_rvalid;end
endalways@(posedge i_clk,posedge i_rst)
beginif(i_rst)r_read_cnt <= 'd0;else if(r_read_cnt == P_LEN - 1 && w_r_act)r_read_cnt <= 'd0;else if(w_r_act)r_read_cnt <= r_read_cnt + 1;else r_read_cnt <= r_read_cnt;
end
endmodule
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