From 31a099cb104ea4d7d957bb65bbdc7e8edbdbe636 Mon Sep 17 00:00:00 2001
From: barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 19 Sep 2011 13:54:07 +0000
Subject: RTC. Driver improvements

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3352 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/dox/rtc.dox | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'os/hal/dox')

diff --git a/os/hal/dox/rtc.dox b/os/hal/dox/rtc.dox
index 3572aca18..dc49c8bb0 100644
--- a/os/hal/dox/rtc.dox
+++ b/os/hal/dox/rtc.dox
@@ -30,5 +30,14 @@
  * @pre     In order to use the RTC driver the @p HAL_USE_RTC option
  *          must be enabled in @p halconf.h. 
  *
+ * @note    STM32 Errata notes:
+ *          Description
+ *          When the LSIRDY flag is set, the clock may still be out of the 
+ *          specified frequency range (fLSI parameter, see LSI oscillator 
+ *          characteristics in the product datasheet).
+ *          Workaround
+ *          To have a fully stabilized clock in the specified range, a 
+ *          software temporization of 100 uS should be added.
+ *          
  * @ingroup IO
  */
-- 
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