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分享是一種喜悅、更是一種幸福

微處理器 - Lattice LCMXO2-1200HC-4SG32C - VHDL - LED

---

top.vhd

library ieee;
use ieee.std_logic_1164.all;
     
entity main is
    port(
        clk : in std_logic;
        led : out std_logic
    );
end main;
     
architecture logic of main is
begin
    process(clk) is
        variable cnt : integer := 0;
        variable val: std_logic;
    begin
        if (clk'event and clk = '1') then
            cnt := cnt + 1;
   
            if (cnt = 1000000) then
                cnt := 0;
                led <= val;
                val := not val;
            end if;
        end if;
    end process;
end logic;

top.lpf

LOCATE COMP "led" SITE "27";
LOCATE COMP "clk" SITE "28";

Makefile

all:
	yosys -m ghdl -p "ghdl top.vhd -e main; synth_lattice -family xo2 -json top.json"
	nextpnr-machxo2 --device LCMXO2-1200HC-4SG32C --lpf top.lpf --json top.json --textcfg top.txt
	ecppack --compress --jed-note "DESIGN NAME: top.ncd" --jed-note "DEVICE NAME: LCMXO2-1200HC-4QFN32" top.txt top.bit --jed top.jed

clean:
	rm -rf top.txt top.bit top.json top.jed

編譯

$ make

插入開發板到PC後，會新增一個隨身碟，只要將top.jed複製到該隨身碟即可完成燒錄