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Add SAM3U clock and systick init logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2511 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-01-17 17:55:13 +00:00
parent b21202d811
commit 427dc27020
2 changed files with 44 additions and 15 deletions
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45
configs/sam3u-ek/include/board.h
View File

@ -53,17 +53,46 @@
************************************************************************************/
/* Clocking *************************************************************************/
/* After power-on reset, the sam3u device is running on a 4MHz internal RC. These
* definitions will configure clocking with MCK = 48MHz, PLLA = 96, and CPU=48MHz.
*/
/* Main oscillator register settings */
#define BOARD_CKGR_MOR_MOSCXTST (63 << CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
/* PLLA configuration */
#define BOARD_CKGR_PLLAR_MULA (7 << CKGR_PLLAR_MULA_SHIFT)
#define BOARD_CKGR_PLLAR_STMODE CKGR_PLLAR_STMODE_FAST
#define BOARD_CKGR_PLLAR_PLLACOUNT (63 << CKGR_PLLAR_PLLACOUNT_SHIFT)
#define BOARD_CKGR_PLLAR_DIVA CKGR_PLLAR_DIVA_BYPASS
/* PMC master clock register settings */
#define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA
#define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV2
/* USB UTMI PLL start-up time */
#define BOARD_CKGR_UCKR_UPLLCOUNT (3 << CKGR_UCKR_UPLLCOUNT_SHIFT)
/* Resulting frequencies */
#define SAM3U_MCK_FREQUENCY (48000000)
#define SAM3U_PLLA_FREQUENCY (96000000)
#define SAM3U_CPU_FREQUENCY (48000000)
/* LED definitions ******************************************************************/
#define LED_STARTED 0
#define LED_HEAPALLOCATE 1
#define LED_IRQSENABLED 2
#define LED_STACKCREATED 3
#define LED_INIRQ 4
#define LED_SIGNAL 5
#define LED_ASSERTION 6
#define LED_PANIC 7
#define LED_STARTED 0
#define LED_HEAPALLOCATE 1
#define LED_IRQSENABLED 2
#define LED_STACKCREATED 3
#define LED_INIRQ 4
#define LED_SIGNAL 5
#define LED_ASSERTION 6
#define LED_PANIC 7
/************************************************************************************
* Public Data

14
configs/sam3u-ek/ostest/defconfig
View File

@ -129,43 +129,43 @@ CONFIG_USART3_ISUART=y
# CONFIG_USARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
# CONFIG_USARTn_2STOP - Two stop bits
#
CONFIG_USART_SERIAL_CONSOLE=Y
CONFIG_UART_SERIAL_CONSOLE=Y
CONFIG_USART0_SERIAL_CONSOLE=n
CONFIG_USART1_SERIAL_CONSOLE=n
CONFIG_USART2_SERIAL_CONSOLE=n
CONFIG_USART3_SERIAL_CONSOLE=n
CONFIG_USART_TXBUFSIZE=256
CONFIG_UART_TXBUFSIZE=256
CONFIG_USART0_TXBUFSIZE=256
CONFIG_USART1_TXBUFSIZE=256
CONFIG_USART2_TXBUFSIZE=256
CONFIG_USART3_TXBUFSIZE=256
CONFIG_USART_RXBUFSIZE=256
CONFIG_UART_RXBUFSIZE=256
CONFIG_USART0_RXBUFSIZE=256
CONFIG_USART1_RXBUFSIZE=256
CONFIG_USART2_RXBUFSIZE=256
CONFIG_USART3_RXBUFSIZE=256
CONFIG_USART_BAUD=115200
CONFIG_UART_BAUD=115200
CONFIG_USART0_BAUD=115200
CONFIG_USART1_BAUD=115200
CONFIG_USART2_BAUD=115200
CONFIG_USART3_BAUD=115200
CONFIG_USART_BITS=8
CONFIG_UART_BITS=8
CONFIG_USART0_BITS=8
CONFIG_USART1_BITS=8
CONFIG_USART2_BITS=8
CONFIG_USART3_BITS=8
CONFIG_USART_PARITY=0
CONFIG_UART_PARITY=0
CONFIG_USART0_PARITY=0
CONFIG_USART1_PARITY=0
CONFIG_USART2_PARITY=0
CONFIG_USART3_PARITY=0
CONFIG_USART_2STOP=0
CONFIG_UART_2STOP=0
CONFIG_USART0_2STOP=0
CONFIG_USART1_2STOP=0
CONFIG_USART2_2STOP=0