Add TODO comments to I2S to/from WAV sim device

diff --git a/libraries/simulated/dev_pmod_i2s.vhd b/libraries/simulated/dev_pmod_i2s.vhd
index 6e5d71577a3c733558d725b8c689b21122ac8f9e..d0c83d720ebd09b3c1bea18ccca99c0f024d2914 100644 (file)
--- a/libraries/simulated/dev_pmod_i2s.vhd
+++ b/libraries/simulated/dev_pmod_i2s.vhd
@@ -1,3 +1,13 @@
+--------------------------------------------------------------------------------
+-- This is not its final form
+--
+-- * Separate I2S->WAV and WAV->I2S into separate entities
+-- * Queues should carry integers, not bytes
+-- * Queues should allocate blocks rather than individual items (its a bit slow)
+-- * Floating point error accumulation causes MCLK drift
+-- * More sanity checks on file format (ensure sample width divisible by 8)
+--------------------------------------------------------------------------------
+
 library ieee;
 use ieee.std_logic_1164.all;
 use ieee.numeric_std.all;