lcd_top.sch

本次代码要从ROM里面读取数据

VERSION 6
BEGIN SCHEMATIC
    BEGIN ATTR DeviceFamilyName "spartan3"
        DELETE all:0
        EDITNAME all:0
        EDITTRAIT all:0
    END ATTR
    BEGIN NETLIST
        SIGNAL rst_n
        SIGNAL clk
        SIGNAL XLXN_3
        SIGNAL lcd_rs
        SIGNAL lcd_rw
        SIGNAL lcd_e
        SIGNAL data(7:0)
        PORT Input rst_n
        PORT Input clk
        PORT Output lcd_rs
        PORT Output lcd_rw
        PORT Output lcd_e
        PORT Output data(7:0)
        BEGIN BLOCKDEF lcd
            TIMESTAMP 2006 10 11 15 13 10
            RECTANGLE N 64 -320 320 0 
            LINE N 64 -288 0 -288 
            LINE N 64 -32 0 -32 
            LINE N 320 -288 384 -288 
            LINE N 320 -224 384 -224 
            LINE N 320 -160 384 -160 
            RECTANGLE N 320 -108 384 -84 
            LINE N 320 -96 384 -96 
            RECTANGLE N 320 -44 384 -20 
            LINE N 320 -32 384 -32 
        END BLOCKDEF
        BEGIN BLOCKDEF div16
            TIMESTAMP 2006 10 11 15 13 14
            RECTANGLE N 64 -128 320 0 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            LINE N 320 -96 384 -96 
        END BLOCKDEF
        BEGIN BLOCK XLXI_1 lcd
            PIN clk XLXN_3
            PIN Reset rst_n
            PIN lcd_rs lcd_rs
            PIN lcd_rw lcd_rw
            PIN lcd_e lcd_e
            PIN data(7:0) data(7:0)
            PIN stateout(10:0)
        END BLOCK
        BEGIN BLOCK XLXI_2 div16
            PIN clk clk
            PIN rst rst_n
            PIN clk_16 XLXN_3
        END BLOCK
    END NETLIST
    BEGIN SHEET 1 3520 2720
        BEGIN INSTANCE XLXI_1 1360 1056 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_2 880 576 R0
        END INSTANCE
        BEGIN BRANCH rst_n
            WIRE 640 544 800 544
            WIRE 800 544 880 544
            WIRE 800 544 800 1024
            WIRE 800 1024 1360 1024
        END BRANCH
        BEGIN BRANCH clk
            WIRE 640 480 880 480
        END BRANCH
        BEGIN BRANCH XLXN_3
            WIRE 1264 480 1312 480
            WIRE 1312 480 1312 768
            WIRE 1312 768 1360 768
        END BRANCH
        BEGIN BRANCH lcd_rs
            WIRE 1744 768 1824 768
        END BRANCH
        BEGIN BRANCH lcd_rw
            WIRE 1744 832 1824 832
        END BRANCH
        BEGIN BRANCH lcd_e
            WIRE 1744 896 1824 896
        END BRANCH
        BEGIN BRANCH data(7:0)
            WIRE 1744 960 1824 960
        END BRANCH
        IOMARKER 640 480 clk R180 28
        IOMARKER 640 544 rst_n R180 28
        IOMARKER 1824 768 lcd_rs R0 28
        IOMARKER 1824 832 lcd_rw R0 28
        IOMARKER 1824 896 lcd_e R0 28
        IOMARKER 1824 960 data(7:0) R0 28
    END SHEET
END SCHEMATIC