Merge pull request #747 from cr1901/machxo2

MachXO2 Checkpoint 1

1 files changed, 38 insertions, 0 deletions

diff --git a/machxo2/examples/tinyfpga.vhd b/machxo2/examples/tinyfpga.vhd
new file mode 100644
index 00000000..29705728
--- /dev/null
+++ b/machxo2/examples/tinyfpga.vhd
@@ -0,0 +1,38 @@
+library ieee ;
+context ieee.ieee_std_context;
+
+use work.components.all;
+
+entity top is
+  port (
+    pin1: out std_logic
+  );
+
+  attribute LOC: string;
+  attribute LOC of pin1: signal is "13";
+end;
+
+architecture arch of top is
+  signal clk: std_logic;
+  signal led_timer: unsigned(23 downto 0) := (others=>'0');
+begin
+
+  internal_oscillator_inst: OSCH
+  generic map (
+    NOM_FREQ => "16.63"
+  )
+  port map (
+    STDBY => '0',
+    OSC => clk
+  );
+
+  process(clk)
+  begin
+    if rising_edge(clk) then
+      led_timer <= led_timer + 1;
+    end if;
+  end process;
+
+  pin1 <= led_timer(led_timer'left);
+
+end;