diff --git a/notes.md b/notes.md
index df33275..e052917 100644
--- a/notes.md
+++ b/notes.md
@@ -129,3 +129,4 @@
 2017-07-13T20:11:00 - Implementing approach from a new paper read last night (pulp-runtime)
 2017-07-13T17:46:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (pulp-runtime)
 2017-07-13T22:43:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (pulp-runtime)
+2017-07-13T07:49:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (pulp-runtime)