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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-05-18 23:01:30 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-05-18 23:01:30 +0000 |
commit | 0fcd87da6c840554cacc94fe14b5963d59441ab7 (patch) | |
tree | f019dfe20d04761f5227b07b766a70012a873fbb /nuttx/configs/eagle100 | |
parent | 06646cb429ba386a00c57bcce7a87456b22bc781 (diff) | |
download | px4-nuttx-0fcd87da6c840554cacc94fe14b5963d59441ab7.tar.gz px4-nuttx-0fcd87da6c840554cacc94fe14b5963d59441ab7.tar.bz2 px4-nuttx-0fcd87da6c840554cacc94fe14b5963d59441ab7.zip |
Calibrate lm3s6918 timing loop
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1792 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/eagle100')
-rw-r--r-- | nuttx/configs/eagle100/README.txt | 7 | ||||
-rw-r--r-- | nuttx/configs/eagle100/ostest/defconfig | 9 |
2 files changed, 15 insertions, 1 deletions
diff --git a/nuttx/configs/eagle100/README.txt b/nuttx/configs/eagle100/README.txt index 42fd0256b..8f93fd82d 100644 --- a/nuttx/configs/eagle100/README.txt +++ b/nuttx/configs/eagle100/README.txt @@ -142,6 +142,13 @@ Eagle100-specific Configuration Options CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture. + 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. + LM3S6818 specific device driver settings CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the diff --git a/nuttx/configs/eagle100/ostest/defconfig b/nuttx/configs/eagle100/ostest/defconfig index 6310a02e3..c1a4a760a 100644 --- a/nuttx/configs/eagle100/ostest/defconfig +++ b/nuttx/configs/eagle100/ostest/defconfig @@ -59,13 +59,19 @@ # CONFIG_ARCH_BOOTLOADER - Configure to use the MicroMint Eagle-100 # Ethernet bootloader. # CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture. +# 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. CONFIG_ARCH=arm CONFIG_ARCH_ARM=y CONFIG_ARCH_CHIP=lm3s CONFIG_ARCH_CHIP_LM3S6918=y CONFIG_ARCH_BOARD=eagle100 CONFIG_ARCH_BOARD_EAGLE100=y -CONFIG_BOARD_LOOPSPERMSEC=16945 +CONFIG_BOARD_LOOPSPERMSEC=4531 CONFIG_DRAM_SIZE=0x00010000 CONFIG_DRAM_START=0x00000000 CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE) @@ -75,6 +81,7 @@ CONFIG_ARCH_INTERRUPTSTACK=n CONFIG_ARCH_STACKDUMP=y CONFIG_ARCH_BOOTLOADER=y CONFIG_ARCH_LEDS=y +CONFIG_ARCH_CALIBRATION=n # # LM3S6918 specific serial device driver settings |