Subversion Repositories mips789

 
module mips_top (
 input clk,
 input rst,
 input ser_rxd,
 output ser_txd,
 output [6:0]seg7led1,
 output [6:0]seg7led2,
 output [7:0] lcd_data,
 output lcd_rs,
 output lcd_rw,
 output lcd_en,
 output led1,
 output led2,
 input  key1,
 input  key2
);
 
wire [31:0] data2core;
wire [31:0] data2mem;
wire [31:0] ins2core;
wire [31:0] mem_Addr;
wire [31:0] pc;
wire [3:0] wr_en;  
wire CLK;		   
 
 
reg r_rst;	  
always @(posedge CLK) if (~rst) r_rst<=1'b1; else r_rst<=1'b0;	 
 
wire sys_rst = r_rst;  
 
 mips_pll Ipll(
	.inclk0(clk),
	.c0(CLK)
	);
 
mem_array ram_8k
(
	.clk(CLK),
	.din(data2mem),
	.dout(data2core),
	.ins_o(ins2core),
	.pc_i(pc),
	.rd_addr_i(mem_Addr),
	.wr_addr_i(mem_Addr),
	.wren(wr_en)
);	
 
 mips_sys isys
(		   
 
	.zz_addr_o(mem_Addr),
	.zz_din(data2core),
	.zz_dout(data2mem),
	.zz_ins_i(ins2core),
	.zz_pc_o(pc),
	.zz_wr_en_o(wr_en),	
 
  .clk(CLK),
  .rst(sys_rst),
 
  .ser_rxd(ser_rxd),
  .ser_txd(ser_txd),
 
  .seg7led1(seg7led1),
  .seg7led2(seg7led2),
 
        .lcd_data(lcd_data),
        .lcd_rs(lcd_rs),
        .lcd_rw(lcd_rw),
        .lcd_en(lcd_en),
 
        .led1(led1),
        .led2(led2),
 
        .key1(key1),
        .key2(key2)
);
 
endmodule