LCD on Altera DE2 VHDL

Altera_Forum · ‎01-22-2014

Hello,

I have a problem with written program VHDL to LCD on Altera DE2 with 2 lines.

I have done on 7-seg and LED, and I want the same inscription on LCD witch is now and working on 7-seg.

LCD is ready. Ports and pins are declared.

LCD_POWERON: out STD_LOGIC;       -- power on
   LCD_ENABLE: out STD_LOGIC;       -- enable
   LCD_BL: out STD_LOGIC;        -- back light
   LCD_RS: out STD_LOGIC;
   LCD_RW: out STD_LOGIC;
   LCD_DATA: inout STD_LOGIC_VECTOR (0 to 7)

And this is fragment of code

if (WL = '0') then                        -- button WL
            LEDY <= "000000000000";
            LD7 <= "0111111"; LD6 <= "0111111"; LD5 <= "0111111"; LD4 <= "0111111";
            LD3 <= "0111111"; LD2 <= "0111111"; LD1 <= "0111111"; LD0 <= "0111111";
            licznik        <= 0;
            zdarzenie    <= 0;
        else
            if (falling_edge(CLK)) then
                if (zdarzenie = 0) then            -- stop (2s)
                    LEDY <= "000000000000";
                    LD7 <= "1000110"; LD6 <= "0100100"; LD5 <= "1111111"; LD4 <= "1111111";
                    LD3 <= "0010010"; LD2 <= "0000111"; LD1 <= "1000000"; LD0 <= "0001100";
                    licznik        <= 0;
                    zdarzenie    <= 0;
                    if (licznik <= TIME_2) then
                        licznik <= licznik + 1;
                    else
                        licznik <= 0;
                        zdarzenie <= 1;
                    end if;
                
                elsif (zdarzenie = 1) then        -- forward (4.5s)
                
                    LEDY <= "000000000001";
                    LD7 <= "1000110"; LD6 <= "0100100"; LD5 <= "0100001"; LD4 <= "0100011";
                    LD3 <= "0001100"; LD2 <= "0101111"; LD1 <= "0100100"; LD0 <= "1111111";
                    
                    if (licznik <= TIME_4_5) then
                        licznik <= licznik + 1;
                    else
                        licznik <= 0;
                        zdarzenie <= 2;
                    end if;
                
                elsif (zdarzenie = 2) then        -- right (1s)
                    LEDY <= "000000100100";
                    LD7 <= "1000110"; LD6 <= "0100100"; LD5 <= "0100011"; LD4 <= "0000011";
                    LD3 <= "0001100"; LD2 <= "0101111"; LD1 <= "1111111"; LD0 <= "1111111";
                    if (licznik <= TIME_1) then
                        licznik <= licznik + 1;
                    else
                        licznik <= 0;
                        zdarzenie <= 3;
                    end if;

And I need the same inscription like on 7-seg, but now on LCD.

Please help.