LCD1602屏 (EP4CE30) FPGA读写实验Verilog逻辑源码Quartus工程文件+文档资料。FPGA为CYCLONE4系列中的EP4CE30F23C8. 完整的工程文件，可以做为你的学习设计参考。 module LCD1602_Cnt(input sys_clk, //50M input sys_rst_n, output reg lcd_rs, //0:write order; 1:write data output lcd_rw, //0:write data; 1:read data output reg lcd_en, // output reg [7:0] lcd_data); //--------------------lcd1602 order---------------------------- parameter Mode_Set = 8'h38, //������ʾģʽ��8λ2��5x8���� Cursor_Set = 8'h0c, //��ʾ������겻��ʾ�����겻������˸ Address_Set = 8'h06, //���ֲ����������Զ����� Clear_Set = 8'h01; //��������긴λ /****************************LCD1602 Display Data****************************/ wire [7:0] data0,data1; //counter data wire [7:0] addr; //write address //---------------------------------1s counter----------------------------------- reg [25:0] cnt1; reg [7:0] data_r0,data_r1; always@(posedge sys_clk or negedge sys_rst_n) begin if(!sys_rst_n) begin cnt1 <= 1'b0; data_r0 <= 1'b0; data_r1 <= 1'b0; end else if(cnt1==26'd50000000) begin if(data_r0==8'd9) begin data_r0 <= 1'b0; if(data_r1==8'd9) data_r1 <= 1'b0; else data_r1 <= data_r1 + 1'b1; end else data_r0 <= data_r0 + 1'b1; cnt1 <= 1'b0; end else cnt1 <= cnt1 + 1'b1; end assign data0 = 8'h30 + data_r0 ; assign data1 = 8'h30 + data_r1 ; //-------------------address------------------ assign addr = 8'h80; /****************************LCD1602 Driver****************************/ //-----------------------lcd1602 sys_clk_en--------------------- reg