Question

我有一个lattice MachXO3L starter kit，我在输入时遇到了一些麻烦。我尝试减少代码以仅读取4个开关(MachXO3 Starter Kit User’s Guide（第26页）并根据开关的状态点亮4个LED。问题在于LED似乎熄灭了一半。我尝试添加“显示”，当我期望更改时，开关似乎没有任何变化。我设置的电子表格与示例中的电子表格相同。我仍在学习VHDL，这是我第一次真正尝试将其连接到该示例，并且该示例在Verilog上，因此我无法真正检查自己在做什么。我可能缺少一些基本的知识，但我不知道该怎么办。

顶级文件：

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity TOP is 
    GENERIC(
        DATAWIDTH   : natural := 4
    );
    PORT(
        -- Input Buffer --
        ADCInputBuffer : IN STD_LOGIC_VECTOR (DATAWIDTH-1 downto 0);
        OUTPUT : OUT STD_LOGIC_VECTOR (DATAWIDTH-1 downto 0);
        ADC_SRT     : OUT STD_LOGIC
    );
end TOP;

architecture ADReader of TOP is
    SIGNAL INTERNAL_CLOCK : STD_LOGIC;
    SIGNAL CLOCK          : STD_LOGIC;
    SIGNAL CLOCK_65       : STD_LOGIC;

    -- BUFFER --
    signal adcInPut : std_logic_vector(DATAWIDTH-1 downto 0);   

    ---------------------------------------------------
    --  Internal Clock. Mach0X3                      --
    ---------------------------------------------------
    COMPONENT OSCH is
        GENERIC(NOM_FREQ: string := "133.00"); --133.00MHz, or can select other supported frequencies
        PORT(
            STDBY    : IN  STD_LOGIC;     --'0' OSC output is active, '1' OSC output off
            OSC      : OUT STD_LOGIC;     --the oscillator output
            SEDSTDBY : OUT STD_LOGIC      --required only for simulation when using standby
            );    
    END COMPONENT;
    ---------------------------------------------------
    --  Internal Clock multiplier. Mach0X3           --
    ---------------------------------------------------
    COMPONENT MASTERCLOCK is
        PORT(
            CLKI       : IN  STD_LOGIC;     --'0' OSC output is active, '1' OSC output off
            CLKOP      : OUT STD_LOGIC;     --the oscillator output 260MHz
            CLKOS      : OUT STD_LOGIC     --the oscillator output for adc 65Mhz
            );    
    END COMPONENT;
    ---------------------------------------------------
    --  Read data In                                 --
    ---------------------------------------------------
    COMPONENT InputBuffer is
        GENERIC(n: natural :=DATAWIDTH );
        PORT(
            clk    : in STD_LOGIC;
            CLK65  : IN STD_LOGIC;
            En     : in STD_LOGIC;
            STRT   : OUT STD_LOGIC;
            Ipin   : in  STD_LOGIC_VECTOR (n-1 downto 0);
            Output : out  STD_LOGIC_VECTOR (n-1 downto 0)
        );
    END COMPONENT;

    begin
        -- System Clock 
        OSC: OSCH
        GENERIC MAP (NOM_FREQ  => "133.0") 
        PORT MAP (STDBY => '0', OSC => INTERNAL_CLOCK, SEDSTDBY => OPEN);

        -- System Clock Multiplied
        OSCmain: MASTERCLOCK
        PORT MAP (CLKI => INTERNAL_CLOCK, CLKOP => CLOCK, CLKOS => CLOCK_65);

        -- Gets data from ONE ADC
        ADCIn: InputBuffer
        GENERIC MAP (n => DATAWIDTH)
        PORT MAP( clk => CLOCK, CLK65 =>CLOCK_65, EN =>'0', Ipin => adcInPut, Output => OUTPUT, STRT => ADC_SRT );
        adcInPut <= ADCInputBuffer;
end ADReader;

InputBuffer：

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity InputBuffer is
    generic(n: natural :=4 );
    Port (  
            clk    : in STD_LOGIC;
            CLK65  : IN STD_LOGIC;
            En     : in STD_LOGIC;
            STRT   : OUT STD_LOGIC;
            Ipin   : in  STD_LOGIC_VECTOR (n-1 downto 0);
            Output : out  STD_LOGIC_VECTOR (n-1 downto 0)
        );
end InputBuffer;

architecture Behavioral of InputBuffer is
    signal temp : STD_LOGIC_VECTOR(n-1 downto 0);
    SIGNAL CLK2 : STD_LOGIC;
begin
    -- invert the signal from the push button switch and route it to the LED
    process(clk, En)
    begin
        if( En = '1') then
            temp <= B"0000";
        elsif rising_edge(clk) then
            temp <= Ipin; 
        end if;
    end process;
    Output <=  temp;
    STRT <= CLK65;
end Behavioral;

这是由晶格菱形生成的MASTERCLOCK的设置：这是设置引脚的方式：这是由点阵钻石生成的网表：

在这里，我只是想获得静态输出：

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity TOP is 
	GENERIC(
		DATAWIDTH   : natural := 4
	);
	PORT(
		OUTPUT : OUT STD_LOGIC_VECTOR (DATAWIDTH-1 downto 0)
	);
end TOP;

architecture ADReader of TOP is
	begin
		OUTPUT <= B"1010";
end ADReader;

Answer 1

用户指南的第15页（您提供的链接）提到了不同的LED引脚：H11，J13，J11，L12，您可以将它们用作ADC输入。我想您可能已经在周围交换了一些图钉...

点阵mackXO3板输出瞬变

1 个答案: