From 20b11bf664172df948ca484afc44851a406722df Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Wed, 4 Mar 2020 13:28:22 +0100
Subject: [PATCH] boards/slstk3401a: fix broken links

---
 boards/slstk3401a/doc.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/boards/slstk3401a/doc.txt b/boards/slstk3401a/doc.txt
index a0a06f2b60..a9bf2ff4a7 100644
--- a/boards/slstk3401a/doc.txt
+++ b/boards/slstk3401a/doc.txt
@@ -138,7 +138,8 @@ symbols (`-gdwarf-2` for GCC).
 
 ### Clock selection
 There are several clock sources that are available for the different
-peripherals. You are advised to read [AN0004](https://www.silabs.com/Support%20Documents/TechnicalDocs/AN0004.pdf)
+peripherals. You are advised to read [AN0004.1]
+(https://www.silabs.com/documents/public/application-notes/an0004.1-efm32-cmu.pdf)
 to get familiar with the different clocks.
 
 | Source | Internal | Speed      | Comments                           |