Improve examples for Lattice iCEstick

- move "leds" examples to subdirectory
- add Makefile
- add *.json files to .gitignore
- adjust README.md and fix some typos

1 files changed, 0 insertions, 41 deletions

diff --git a/examples/icestick/multi2.vhdl b/examples/icestick/multi2.vhdl
deleted file mode 100644
index 78bf298..0000000
--- a/examples/icestick/multi2.vhdl
+++ /dev/null
@@ -1,41 +0,0 @@
-architecture multi2 of leds is
-  signal clk_4hz: std_logic;
-  signal clk_5sec : std_logic;
-begin
-  process (clk)
-    --  3_000_000 is 0x2dc6c0
-    variable counter : unsigned (23 downto 0);
-  begin
-    if rising_edge(clk) then
-      if counter = 2_999_999 then
-        counter := x"000000";
-        clk_4hz <= '1';
-      else
-        counter := counter + 1;
-        clk_4hz <= '0';
-      end if;
-    end if;
-  end process;
-
-  process (clk)
-    variable counter5 : unsigned (4 downto 0);
-  begin
-    if rising_edge (clk) then
-      clk_5sec <= '0';
-      if clk_4hz = '1' then
-        if counter5 = 19 then
-          clk_5sec <= '1';
-          counter5 := "00000";
-        else
-          counter5 := counter5 + 1;
-        end if;
-      end if;
-    end if;
-  end process;
-
-  led1 <= clk_5sec;
-  led2 <= '0';
-  led3 <= '0';
-  led4 <= '0';
-  led5 <= '0';
-end multi2;