diff options
Diffstat (limited to 'nuttx/configs/vsn/include/board.h')
| -rw-r--r-- | nuttx/configs/vsn/include/board.h | 54 |
1 files changed, 39 insertions, 15 deletions
diff --git a/nuttx/configs/vsn/include/board.h b/nuttx/configs/vsn/include/board.h index 558dccd91..f4ad540c7 100644 --- a/nuttx/configs/vsn/include/board.h +++ b/nuttx/configs/vsn/include/board.h @@ -55,6 +55,16 @@ /************************************************************************************ * Definitions ************************************************************************************/ + +/* Board Configuration: + * - USART1, is the default bootloader and console + * - SPI1 is wired to expansion port + * - SPI2 is used for radio module + * - SPI3 has direct connection with FRAM + * - SDCard, conencts the microSD and shares the control lines with Sensor Interface + * to select Amplifier Gain + * - ... + */ /* Clocking *************************************************************************/ @@ -103,33 +113,44 @@ /* SDIO dividers. Note that slower clocking is required when DMA is disabled * in order to avoid RX overrun/TX underrun errors due to delayed responses - * to service FIFOs in interrupt driven mode. These values have not been - * tuned!!! + * to service FIFOs in interrupt driven mode. + * + * SDcard default speed has max SDIO_CK freq of 25 MHz (12.5 Mbps) + * After selection of high speed freq may be 50 MHz (25 Mbps) + * Recommended default voltage: 3.3 V * - * \todo Not checked yet! Uros. - * HCLK=36MHz, SDIOCLK=? MHz, SDIO_CK=HCLK/(178+2)=400 KHz + * HCLK=36MHz, SDIOCLK=36 MHz, SDIO_CK=HCLK/(88+2)=400 KHz */ -#define SDIO_INIT_CLKDIV (178 << SDIO_CLKCR_CLKDIV_SHIFT) +#define SDIO_INIT_CLKDIV (88 << SDIO_CLKCR_CLKDIV_SHIFT) -/* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(2+2)=18 MHz - * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz +/* DMA ON: HCLK=36 MHz, SDIOCLK=36MHz, SDIO_CK=HCLK/(0+2)=18 MHz + * DMA OFF: HCLK=36 MHz, SDIOCLK=36MHz, SDIO_CK=HCLK/(1+2)=12 MHz */ #ifdef CONFIG_SDIO_DMA -# define SDIO_MMCXFR_CLKDIV (2 << SDIO_CLKCR_CLKDIV_SHIFT) +# define SDIO_MMCXFR_CLKDIV (0 << SDIO_CLKCR_CLKDIV_SHIFT) #else -# define SDIO_MMCXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT) +# ifndef CONFIG_DEBUG +# define SDIO_MMCXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) +# else +# define SDIO_MMCXFR_CLKDIV (10 << SDIO_CLKCR_CLKDIV_SHIFT) +# endif #endif -/* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz - * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz +/* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(0+2)=18 MHz + * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=12 MHz + * Extra slow down in debug mode to get rid of underruns. */ #ifdef CONFIG_SDIO_DMA -# define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) +# define SDIO_SDXFR_CLKDIV (0 << SDIO_CLKCR_CLKDIV_SHIFT) #else -# define SDIO_SDXFR_CLKDIV (3 << SDIO_CLKCR_CLKDIV_SHIFT) +# ifndef CONFIG_DEBUG +# define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) +# else +# define SDIO_SDXFR_CLKDIV (10 << SDIO_CLKCR_CLKDIV_SHIFT) +# endif #endif /* LED definitions ******************************************************************/ @@ -146,8 +167,6 @@ #define LED_PANIC 7 /* ... */ #define LED_IDLE 8 /* shows idle state */ -/* eXternal connector pins */ - /************************************************************************************ * Public Data @@ -197,6 +216,11 @@ EXTERN void up_buttoninit(void); EXTERN uint8_t up_buttons(void); #endif +/* Other peripherals startup routines, all returning OK on success */ +EXTERN int up_sdcard(void); +EXTERN int up_ramtron(void); + + #undef EXTERN #if defined(__cplusplus) } |