No More Codes

module IOT_Bridge(

                output [7:0] seg,

                output [3:0] dig,

                output reg [3:0] led,

                input clock,

                input [3:0] sw,

                inout dht22_sda

        );

        // variables of clocks

        wire ck1Mhz;

        wire ck1KHz;   

        wire ck1Hz;     

        CLK_1MHZ  clk_1MHz(clock, ck1Mhz);

        CLK_1KHZ  clk_1KHz(clock, ck1Khz);

        CLK_1HZ   clk_1Hz(clock, ck1Hz);

        // variables of 7-seg LED

   wire [3:0] D3;

   wire [3:0] D2;

   wire [3:0] D1;

   wire [3:0] D0;

   wire [15:0] number;  // number to display

   BIN2BCD bin2bcd(number, D3, D2, D1, D0);

   Seg7    seg7(seg, dig, ck1Khz, D3, D2, D1, D0);   

        //DHT22 variables

        reg dht22_reset;

        reg dht22_get;

        reg dht22_select; //1=humidity, 0=temperature

        wire  [39:0] dht22_data;

        DHT22 dht22(ck1Mhz, dht22_reset, dht22_get, dht22_sda, dht22_data);

        assign number[15:0] = dht22_select ? dht22_data[39:24]:dht22_data[23:8];

        // clock

        reg [9:0] clock_counter;

        // initial

        initial

        begin

                dht22_reset = 0;

                dht22_get = 1;

                dht22_select = 1;

                clock_counter = 0;

                led[3:0]= 4'b1111; //LED off

        end         

        // select to show humidity or temperture

        always @ (posedge sw[0])

        begin      

                dht22_select = ~dht22_select;               

        end

        always @ (posedge ck1Khz)

        begin                              

                if (dht22_reset==0)

                        begin

                                dht22_reset = 1;

                                dht22_get = 0; //start to read DHT22

                        end

                led[3] = dht22_get;

                clock_counter = clock_counter + 1'b1;

                if(clock_counter==10'd1000)

                        begin

                                clock_counter = 0; 

                                dht22_reset = 0;

                        end

                if(clock_counter==10'd10) 

                        begin                      

                                dht22_get = 1; //stop read DHT22

                        end                 

        end                 

endmodule

module Test(

                output [7:0] seg,

                output [3:0] dig,

                output reg led,

                input clock

        );   

        reg [14:0] number;  // number to display     

        reg [25:0] clock_divider;       

        wire [3:0] D3;

        wire [3:0] D2;

        wire [3:0] D1;

        wire [3:0] D0;

        assign seg7_clk = clock_divider[14];

        BIN2BCD bin2bcd(number, D3, D2, D1, D0);

        Seg7    seg7(seg, dig, seg7_clk, D3, D2, D1, D0);

        // initial

        initial

        begin

                clock_divider = 0;

                number = 0;

        end 

        // number counts

        always @ (posedge clock )

        begin

                clock_divider = clock_divider + 1'b1;

                if(clock_divider==25'd25000000)

                begin

                        clock_divider = 0;                   

                        number = number+ 1;

                        if (number==14'd10000)

                        begin

                                number = 0;

                        end

                end

        end

endmodule