diff options
Diffstat (limited to 'nuttx/configs/sama5d3x-ek/include/board_384mhz.h')
| -rw-r--r-- | nuttx/configs/sama5d3x-ek/include/board_384mhz.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/nuttx/configs/sama5d3x-ek/include/board_384mhz.h b/nuttx/configs/sama5d3x-ek/include/board_384mhz.h index 02815c1eb..df85ded06 100644 --- a/nuttx/configs/sama5d3x-ek/include/board_384mhz.h +++ b/nuttx/configs/sama5d3x-ek/include/board_384mhz.h @@ -143,12 +143,26 @@ # endif #endif +/* ADC Configuration + * + * ADCClock = MCK / ((PRESCAL+1) * 2) + * + * Given: + * MCK = 128MHz + * ADCClock = 8MHz + * Then: + * PRESCAL = 7 + */ + +#define BOARD_ADC_PRESCAL (7) + /* Resulting frequencies */ #define BOARD_MAINOSC_FREQUENCY (12000000) /* MAINOSC: 12MHz crystal on-board */ #define BOARD_PLLA_FREQUENCY (768000000) /* PLLACK: 64 * 12Mhz / 1 */ #define BOARD_PCK_FREQUENCY (384000000) /* CPU: PLLACK / 2 / 1 */ #define BOARD_MCK_FREQUENCY (128000000) /* MCK: PLLACK / 2 / 1 / 3 */ +#define BOARD_ADCCLK_FREQUENCY (8000000) /* ADCCLK: MCK / ((7+1)*2) */ /* HSMCI clocking * |