lcd1602.sch

Mars-XC2S50-S-Core-V2.0开发板核心板的说明和设计文档

VERSION 6
BEGIN SCHEMATIC
    BEGIN ATTR DeviceFamilyName "xc9500xl"
        DELETE all:0
        EDITNAME all:0
        EDITTRAIT all:0
    END ATTR
    BEGIN NETLIST
        SIGNAL XLXN_1
        SIGNAL rst
        SIGNAL XLXN_3
        SIGNAL clk
        SIGNAL lcd_e
        SIGNAL lcd_rw
        SIGNAL data(7:0)
        SIGNAL lcd_rs
        PORT Input rst
        PORT Input clk
        PORT Output lcd_e
        PORT Output lcd_rw
        PORT Output data(7:0)
        PORT Output lcd_rs
        BEGIN BLOCKDEF div16
            TIMESTAMP 2006 2 21 7 43 20
            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 BLOCKDEF lcd
            TIMESTAMP 2006 2 21 7 43 14
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -32 0 -32 
            LINE N 320 -224 384 -224 
            LINE N 320 -160 384 -160 
            LINE N 320 -96 384 -96 
            RECTANGLE N 320 -44 384 -20 
            LINE N 320 -32 384 -32 
        END BLOCKDEF
        BEGIN BLOCK XLXI_1 div16
            PIN clk clk
            PIN rst rst
            PIN clk_16 XLXN_1
        END BLOCK
        BEGIN BLOCK XLXI_2 lcd
            PIN clk XLXN_1
            PIN rst rst
            PIN lcd_e lcd_e
            PIN lcd_rw lcd_rw
            PIN lcd_rs lcd_rs
            PIN data(7:0) data(7:0)
        END BLOCK
    END NETLIST
    BEGIN SHEET 1 3520 2720
        BEGIN INSTANCE XLXI_1 720 864 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_2 1216 992 R0
        END INSTANCE
        BEGIN BRANCH XLXN_1
            WIRE 1104 768 1216 768
        END BRANCH
        BEGIN BRANCH rst
            WIRE 560 960 656 960
            WIRE 656 960 1216 960
            WIRE 656 832 720 832
            WIRE 656 832 656 960
        END BRANCH
        BEGIN BRANCH clk
            WIRE 560 768 720 768
        END BRANCH
        BEGIN BRANCH lcd_e
            WIRE 1600 768 1728 768
        END BRANCH
        BEGIN BRANCH lcd_rw
            WIRE 1600 832 1728 832
        END BRANCH
        BEGIN BRANCH data(7:0)
            WIRE 1600 960 1728 960
        END BRANCH
        IOMARKER 560 768 clk R180 28
        IOMARKER 560 960 rst R180 28
        IOMARKER 1728 960 data(7:0) R0 28
        IOMARKER 1728 832 lcd_rw R0 28
        IOMARKER 1728 768 lcd_e R0 28
        BEGIN BRANCH lcd_rs
            WIRE 1600 896 1728 896
        END BRANCH
        IOMARKER 1728 896 lcd_rs R0 28
    END SHEET
END SCHEMATIC