1 files changed, 5 insertions, 0 deletions
diff --git a/lib/README b/lib/README
index 213eacea..c11bb66f 100644
--- a/lib/README
+++ b/lib/README
@@ -33,6 +33,11 @@ version 1.3.304 (extracted on 20180725). It has been modified to
 compile with gcc's LTO feature and to work with chips that have a
 bootloader. See samd21.patch for the modifications.
 
+The samd51 directory contains code from the
+Atmel.SAMD51_DFP.1.1.96.atpack zip file found at:
+  http://packs.download.atmel.com/
+version 1.1.96 (extracted on 20190110).
+
 The lpc176x directory contains code from the mbed project:
   https://github.com/ARMmbed/mbed-os
 version mbed-os-5.8.3 (c05d72c3c005fbb7e92c3994c32bda45218ae7fe).