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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-11-02 03:30:11 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-11-02 03:30:11 +0000 |
| commit | e1fc7cc6703067fa89811d71e8aa9a00482c631b (patch) | |
| tree | 0c6366ce3a8e69950526c43d277288b0768a015a /nuttx/configs/avr32dev1/include | |
| parent | 1bd493e97b116e3db8cb588e243bac0895844ebc (diff) | |
| download | px4-nuttx-e1fc7cc6703067fa89811d71e8aa9a00482c631b.tar.gz px4-nuttx-e1fc7cc6703067fa89811d71e8aa9a00482c631b.tar.bz2 px4-nuttx-e1fc7cc6703067fa89811d71e8aa9a00482c631b.zip | |
It took me a long time to figure out that the board has no 32KHz crystal
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3069 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/avr32dev1/include')
| -rwxr-xr-x | nuttx/configs/avr32dev1/include/board.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/nuttx/configs/avr32dev1/include/board.h b/nuttx/configs/avr32dev1/include/board.h index ec61c5c1b..d7d933ae6 100755 --- a/nuttx/configs/avr32dev1/include/board.h +++ b/nuttx/configs/avr32dev1/include/board.h @@ -54,8 +54,10 @@ /* Oscillator setup: RCOSC, OSC32, OSC0, OSC1. Only RCOSC, OSC0, or PLL0 can drive * the main clock. */ - -/* #define AVR32_FRCOSC 15200 RCOSC frequency in Hz */ + +/* The RCOSC frequency needs to be calibrated! */ + +#define AVR32_FRCOSC 115000 /* RCOSC frequency in Hz. 115KHz nominal */ #define AVR32_FOSC32 32768 /* OSC32 frequency in Hz */ #define AVR32_OSC32STARTUP 3 /* OSC32 startup time in RCOSC periods */ @@ -117,10 +119,17 @@ #undef AVR32_CLOCK_USB_OSC1 #define AVR32_CLOCK_USB_DIV 0 -/* Main Clock settup: Select OSC0 as the main clock */ +/* Main Clock settup: Select OSC0 as the main clock. + * + * - A 12Mhz crystal is provided on he board for OSC0. + * - The AVR32DEV1 board has no support for OSC1. + * - There are pads for he 32Khz OSC32, but it is not populated on the + * board. + */ #define AVR32_CLOCK_OSC0 1 -#undef AVR32_CLOCK_OSC1 +#undef AVR32_CLOCK_OSC1 /* Not supported */ +#undef AVR32_CLOCK_OSC32 /* Not populated */ #undef AVR32_CLOCK_PLL0 #undef AVR32_CLOCK_PLL1 |