diff options
Diffstat (limited to 'nuttx/configs/kwikstik-k40/include/board.h')
| -rwxr-xr-x | nuttx/configs/kwikstik-k40/include/board.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/nuttx/configs/kwikstik-k40/include/board.h b/nuttx/configs/kwikstik-k40/include/board.h index 58b2cd218..19653e74e 100755 --- a/nuttx/configs/kwikstik-k40/include/board.h +++ b/nuttx/configs/kwikstik-k40/include/board.h @@ -109,10 +109,19 @@ #define BOARD_SDHC_SD1MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2 #define BOARD_SDHC_SD1MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(3) -/* SD normal mode (4-bit): 24MHz = 96MHz / (2 * 2) */ +/* SD normal mode (4-bit): 24MHz = 96MHz / (2 * 2) (with DMA) + * SD normal mode (4-bit): 16MHz = 96MHz / (2 * 3) (no DMA) + */ -#define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2 -#define BOARD_SDHC_SD4MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(2) +#ifdef CONFIG_SDIO_DMA +# define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2 +# define BOARD_SDHC_SD4MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(2) +#else +//# define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2 +//# define BOARD_SDHC_SD4MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(3) +# define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV16 +# define BOARD_SDHC_SD4MODE_DIVISOR SDHC_SYSCTL_DVS_DIV(15) +#endif /* LED definitions ******************************************************************/ /* The KwikStik-K40 board has no MCU driven, GPIO-based LEDs */ |