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-rw-r--r--source/external-interrupts.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/source/external-interrupts.rst b/source/external-interrupts.rst
index 2cf9aea..209d5af 100644
--- a/source/external-interrupts.rst
+++ b/source/external-interrupts.rst
@@ -53,7 +53,7 @@ Recommended Reading
-------------------
* ST manual `RM0008
- <http://www.st.com/stonline/products/literature/rm/13902.pdf>`_
+ <http://www.st.com/web/en/resource/technical/document/reference_manual/CD00171190.pdf>`_
(PDF), Chapter 9, "General-purpose and alternate-function I/Os", and
Chapter 10, "Interrupts and Events".