微處理器 - Lattice MachXO2 LCMXO2-4000HC-4MG132 (小脚丫STEP-MXO2第二代) - VHDL - LED

參考資訊：
https://www.stepfpga.com/doc/step-mxo2%E5%85%A5%E9%97%A8%E6%95%99%E7%A8%8B

main.vhd

library ieee;
use ieee.std_logic_1164.all;
  
entity main is
    port(
        clk : in std_logic;
        led : out std_logic_vector(0 to 7) := "11111111"
    );
end main;
  
architecture logic of main is
    signal val: std_logic_vector(0 to 7) := "11111111";
    signal clk_cnt : integer := 0;
  
begin
    process(clk) is
    begin
        if (clk'event and clk = '1') then
            clk_cnt <= clk_cnt + 1;

            if (clk_cnt = 12000000) then
                clk_cnt <= 0;
                led <= val;
                val <= not val;
            end if;
        end if;
    end process;
end logic;

New => Project


Name


加入main.vhd


選擇型號


Lattice LSE


用滑鼠Double Click箭頭部份


完成合成


Tools => Spreadsheet View


編輯腳位


用滑鼠Double Click其餘部份，讓全部變成綠色狀態


燒錄

$ openFPGALoader -m -d /dev/ttyUSB0 main_impl1.jed 
    empty
    write to ram
    No cable or board specified: using direct ft2232 interface
    Can't read iSerialNumber field from FTDI: considered as empty string
    Jtag frequency : requested 6.00MHz   -> real 6.00MHz  
    Open file DONE
    Parse file DONE
    Enable configuration: DONE
    SRAM erase: DONE
    Enable configuration: DONE
    Flash erase: DONE
    Writing data: [==================================================] 100.00%
    Done
    Write program Done: DONE
    Disable configuration: DONE

完成