aaron/vhdl-yasg
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Some changes on controller. not working yet.

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This commit is contained in:
T-moe
2016-06-06 20:00:36 +02:00
parent 8f14757888
commit 382de8e524
1 changed files with 19 additions and 6 deletions
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25
controller.vhd
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@@ -56,6 +56,9 @@ architecture Behavioral of controller is
signal lcd_newchar_reg,lcd_newchar_next : std_logic := '0';
signal lcd_data_reg, lcd_data_next: unsigned(7 downto 0) :=(others => '0');
type character_array is array (15 downto 0) of character;
constant line1 : character_array := ( 'h', 'e', 'l','l','o', others=> ' ' );
begin
proc1: process(clk,rst)
@@ -81,11 +84,21 @@ begin
end if;
end process proc1;
freq_out <= resize(digit_reg(0),17)
+ resize(digit_reg(1) * 10 ,17)
+ resize(digit_reg(2) * 100 ,17)
+ resize(digit_reg(3) * 1000,17)
+ resize(digit_reg(4) * 10000,17);
-- freq_out <= resize(digit_reg(0),17)
-- + resize(digit_reg(1) * 10 ,17)
-- + resize(digit_reg(2) * 100 ,17)
-- + resize(digit_reg(3) * 1000,17)
-- + resize(digit_reg(4) * 10000,17);
freq_out <= digit_reg(0)
+ resize((digit_reg(1)
+ resize((digit_reg(2)
+ resize((digit_reg(3)
+ resize(digit_reg(4) * 10,7)
) * 10,10)
)* 10 ,14)
)* 10 ,17);
lcd_data <= lcd_data_reg;
lcd_newchar <= lcd_newchar_reg;
@@ -115,7 +128,7 @@ begin
end if;
if(lcd_busy = '0' and charcnt_reg < 10) then
lcd_data_next <= to_unsigned(65,8);
lcd_data_next <= to_unsigned(character'pos(line1(to_integer(charcnt_reg))),8);
lcd_newchar_next <= '1';
charcnt_next <= charcnt_reg + 1;
end if;