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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-10-01 22:09:00 +0000 |
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| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-10-01 22:09:00 +0000 |
| commit | 078ff53de7f505ba714be768a94c1e52e7261b3e (patch) | |
| tree | 9bf8b7599be1785b828c91655da7510937c92303 /nuttx/ChangeLog | |
| parent | a65f3d1d8c639d5f3c88cee9c41f95a812abfe13 (diff) | |
| download | px4-nuttx-078ff53de7f505ba714be768a94c1e52e7261b3e.tar.gz px4-nuttx-078ff53de7f505ba714be768a94c1e52e7261b3e.tar.bz2 px4-nuttx-078ff53de7f505ba714be768a94c1e52e7261b3e.zip | |
Add support for lo- and hi-res RTC hardware
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4005 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/ChangeLog')
| -rw-r--r-- | nuttx/ChangeLog | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index d1557285c..d774bb48c 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -2121,3 +2121,8 @@ * configs/sam3u/touchscreen - This is the configuration that I plan to use to verify the SAM3U-EK touchscreen driver. However, as of this writing, there is no touchscreen driver for the board. + * CONFIG_RTC_HIRES - Add an option to support either a high-resolution RTC + that completely replaces the system timer tick but may overflow and lose + time when the MCU is off and also for a low-resolution (1 sec/tick) RTC + that can run until 2106 with no overflow. But in this latter case, higher + resolution time must come from the system timer. |