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| author | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-09-19 13:54:07 +0000 |
|---|---|---|
| committer | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-09-19 13:54:07 +0000 |
| commit | 31a099cb104ea4d7d957bb65bbdc7e8edbdbe636 (patch) | |
| tree | 9edf54905eef48fcd3d18ee4c18566866c947265 /os/hal/dox/rtc.dox | |
| parent | 9ced1d4e653d7721b256fbde40f9260446ea434b (diff) | |
| download | ChibiOS-31a099cb104ea4d7d957bb65bbdc7e8edbdbe636.tar.gz ChibiOS-31a099cb104ea4d7d957bb65bbdc7e8edbdbe636.tar.bz2 ChibiOS-31a099cb104ea4d7d957bb65bbdc7e8edbdbe636.zip | |
RTC. Driver improvements
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3352 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/dox/rtc.dox')
| -rw-r--r-- | os/hal/dox/rtc.dox | 9 |
1 files changed, 9 insertions, 0 deletions
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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