From 729e3f2ac4fc2fee36878ba95c65ee6def8e8a29 Mon Sep 17 00:00:00 2001
From: PeterKietzmann <peter.kietzmann@haw-hamburg.de>
Date: Tue, 3 Jul 2018 16:13:52 +0200
Subject: [PATCH] cpu/stm43f4: add SRAM based random seed

---
 cpu/stm32f4/Makefile.features | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cpu/stm32f4/Makefile.features b/cpu/stm32f4/Makefile.features
index f6818fb224..8f57130ae6 100644
--- a/cpu/stm32f4/Makefile.features
+++ b/cpu/stm32f4/Makefile.features
@@ -1,4 +1,5 @@
 FEATURES_PROVIDED += periph_hwrng
+FEATURES_PROVIDED += puf_sram
 
 # the granularity of provided feature definition for STMs is currently by CPU
 # sub-family (e.g., stm32f[1234]).  Unfortunately, only some of e.g., the
-- 
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