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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2007-06-09 15:49:44 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2007-06-09 15:49:44 +0000
commit05dd8c79b40af0221973ba0ee19ee0066c3a8dde (patch)
tree6aa570fa88dbc3e31d4d6061276f3f72c21b3ff3 /nuttx/configs/README.txt
parent747de88ae98ba1e232db4c61b01b114772236c02 (diff)
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Add support for custom system timer frequency
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@274 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/README.txt')
-rw-r--r--nuttx/configs/README.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt
index 77d41e131..a123a1f01 100644
--- a/nuttx/configs/README.txt
+++ b/nuttx/configs/README.txt
@@ -132,6 +132,11 @@ defconfig -- This is a configuration file similar to the Linux
regions of memory to allocate from, this specifies the
number of memory regions that the memory manager must
handle and enables the API mm_addregion(start, end);
+ CONFIG_TICKS_PER_MSEC - The default system timer is 100Hz
+ or TICKS_PER_MSEC=10. This setting may be defined to
+ inform NuttX that the processor hardware is providing
+ system timer interrupts at some interrupt interval other
+ than 10 msec.
CONFIG_RR_INTERVAL - The round robin timeslice will be set
this number of milliseconds; Round robin scheduling can
be disabled by setting this value to zero.