diff --git a/notes.md b/notes.md
index 503cf73..64ac315 100644
--- a/notes.md
+++ b/notes.md
@@ -198,3 +198,4 @@
 2019-06-12T02:29:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (pulp-runtime)
 2019-07-22T21:41:00 - Testing bigger LLM config, referencing 'Attention Is All You Need' (pulp-runtime)
 2019-07-26T19:37:00 - Implementing approach from a new paper read last night (pulp-runtime)
+2019-07-26T02:00:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (pulp-runtime)