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authorpatacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679>2009-05-18 23:01:30 +0000
committerpatacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679>2009-05-18 23:01:30 +0000
commit8de99d03e5f457d838d569d0fab504a921e53c64 (patch)
treef019dfe20d04761f5227b07b766a70012a873fbb /nuttx/configs/mx1ads
parentec06d6dbc003d0e7570144d19ee7e903351f14b7 (diff)
Calibrate lm3s6918 timing loop
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@1792 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/configs/mx1ads')
-rw-r--r--nuttx/configs/mx1ads/README.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/nuttx/configs/mx1ads/README.txt b/nuttx/configs/mx1ads/README.txt
index c3cb965278..a270bfa2b1 100644
--- a/nuttx/configs/mx1ads/README.txt
+++ b/nuttx/configs/mx1ads/README.txt
@@ -84,6 +84,13 @@ ARM/i.MX1-specific Configuration Options
CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+ CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
+ cause a 100 second delay during boot-up. This 100 second delay
+ serves no purpose other than it allows you to calibratre
+ CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
+ the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
+ the delay actually is 100 seconds.
+
IMX specific device driver settings
CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the