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nuttx/configs/nucleus2g/include/board.h
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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3154 42af7a65-404d-4744-a932-0658087f49c3
2010-12-01 01:57:28 +00:00

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/************************************************************************************
* configs/nucleus2g/include/board.h
* include/arch/board/board.h
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_BOARD_BOARD_H
#define __ARCH_BOARD_BOARD_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Definitions
************************************************************************************/
/* Clocking *************************************************************************/
/* NOTE: The following definitions require lpc17_syscon.h. It is not included here
* because the including C file may not have that file in its include path.
*/
#define BOARD_XTAL_FREQUENCY (12000000) /* XTAL oscillator frequency */
#define BOARD_OSCCLK_FREQUENCY BOARD_XTAL_FREQUENCY /* Main oscillator frequency */
#define BOARD_RTCCLK_FREQUENCY (32000) /* RTC oscillator frequency */
#define BOARD_INTRCOSC_FREQUENCY (4000000) /* Internal RC oscillator frequency */
/* This is the clock setup we configure for:
*
* SYSCLK = BOARD_OSCCLK_FREQUENCY = 12MHz -> Select Main oscillator for source
* PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz -> PLL0 multipler=20, pre-divider=1
* CCLCK = 480MHz / 6 = 80MHz -> CCLK divider = 6
*/
#define LPC17_CCLK 80000000 /* 80Mhz */
/* Select the main oscillator as the frequency source. SYSCLK is then the frequency
* of the main oscillator.
*/
#undef CONFIG_LPC17_MAINOSC
#define CONFIG_LPC17_MAINOSC 1
#define BOARD_SCS_VALUE SYSCON_SCS_OSCEN
/* Select the main oscillator and CCLK divider. The output of the divider is CCLK.
* The input to the divider (PLLCLK) will be determined by the PLL output.
*/
#define BOARD_CCLKCFG_DIVIDER 6
#define BOARD_CCLKCFG_VALUE ((BOARD_CCLKCFG_DIVIDER-1) << SYSCON_CCLKCFG_SHIFT)
/* PLL0. PLL0 is used to generate the CPU clock divider input (PLLCLK).
*
* Source clock: Main oscillator
* PLL0 Multiplier value (M): 20
* PLL0 Pre-divider value (N): 1
*
* PLL0CLK = (2 * 20 * SYSCLK) / 1 = 480MHz
*/
#undef CONFIG_LPC17_PLL0
#define CONFIG_LPC17_PLL0 1
#define BOARD_CLKSRCSEL_VALUE SYSCON_CLKSRCSEL_MAIN
#define BOARD_PLL0CFG_MSEL 20
#define BOARD_PLL0CFG_NSEL 1
#define BOARD_PLL0CFG_VALUE \
(((BOARD_PLL0CFG_MSEL-1) << SYSCON_PLL0CFG_MSEL_SHIFT) | \
((BOARD_PLL0CFG_NSEL-1) << SYSCON_PLL0CFG_NSEL_SHIFT))
/* PLL1 -- Not used. */
#undef CONFIG_LPC17_PLL1
#define BOARD_PLL1CFG_MSEL 36
#define BOARD_PLL1CFG_NSEL 1
#define BOARD_PLL1CFG_VALUE \
(((BOARD_PLL1CFG_MSEL-1) << SYSCON_PLL1CFG_MSEL_SHIFT) | \
((BOARD_PLL1CFG_NSEL-1) << SYSCON_PLL1CFG_NSEL_SHIFT))
/* USB divider. This divider is used when PLL1 is not enabled to get the
* USB clock from PLL0:
*
* USBCLK = PLL0CLK / 10 = 48MHz
*/
#define BOARD_USBCLKCFG_VALUE SYSCON_USBCLKCFG_DIV10
/* FLASH Configuration */
#undef CONFIG_LP17_FLASH
#define CONFIG_LP17_FLASH 1
#define BOARD_FLASHCFG_VALUE 0x0000303a
/* LED definitions ******************************************************************/
/* The Nucleus2G has 3 LEDs... two on the Babel CAN board and a "heartbeat" LED."
* The LEDs on the Babel CAN board are capabl of OFF/GREEN/RED/AMBER status.
* In normal usage, the two LEDs on the Babel CAN board would show CAN status, but if
* CONFIG_ARCH_LEDS is defined, these LEDs will be controlled as follows for NuttX
* debug functionality (where NC means "No Change").
*
* During the boot phases. LED1 and LED2 will show boot status.
*/
/* LED1 LED2 HEARTBEAT */
#define LED_STARTED 0 /* OFF OFF OFF */
#define LED_HEAPALLOCATE 1 /* GREEN OFF OFF */
#define LED_IRQSENABLED 2 /* OFF GREEN OFF */
#define LED_STACKCREATED 3 /* OFF OFF OFF */
/* After the system is booted, this logic will no longer use LEDs 1 and 2. They
* are available for use the application software using lpc17_led1() and lpc17_led2()
* (prototyped below)
*/
/* LED1 LED2 HEARTBEAT */
#define LED_INIRQ 4 /* NC NC ON (momentary) */
#define LED_SIGNAL 5 /* NC NC ON (momentary) */
#define LED_ASSERTION 6 /* NC NC ON (momentary) */
#define LED_PANIC 7 /* NC NC ON (1Hz flashing) */
/* Alternate pin selections *********************************************************/
/* UART1 -- Not connected */
#define GPIO_UART1_TXD GPIO_UART1_TXD_1
#define GPIO_UART1_RXD GPIO_UART1_RXD_1
#define GPIO_UART1_CTS GPIO_UART1_CTS_1
#define GPIO_UART1_DCD GPIO_UART1_DCD_1
#define GPIO_UART1_DSR GPIO_UART1_DSR_1
#define GPIO_UART1_DTR GPIO_UART1_DTR_1
#define GPIO_UART1_RI GPIO_UART1_RI_1
#define GPIO_UART1_RTS GPIO_UART1_RTS_1
/* UART2 -- Not connected */
#define GPIO_UART2_TXD GPIO_UART2_TXD_1
#define GPIO_UART2_RXD GPIO_UART2_RXD_1
/* UART3 -- Not connected */
#define GPIO_UART3_TXD GPIO_UART3_TXD_1
#define GPIO_UART3_RXD GPIO_UART3_RXD_1
/* Either SPI or SSP0 can drive the MMC/SD slot (SSP0 alternate pin settings are
* not connected)
*/
#define GPIO_SSP0_SCK GPIO_SSP0_SCK_1
#define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_1
#define GPIO_SSP0_MISO GPIO_SSP0_MISO_1
#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_1
/* SSP1 */
#define GPIO_SSP1_SCK GPIO_SSP1_SCK_1
/************************************************************************************
* Public Types
************************************************************************************/
#ifndef __ASSEMBLY__
#ifdef CONFIG_ARCH_LEDS
enum lpc17_ledstate_e
{
LPC17_LEDSTATE_OFF = 0,
LPC17_LEDSTATE_GREEN = 1,
LPC17_LEDSTATE_RED = 2,
LPC17_LEDSTATE_AMBER = (LPC17_LEDSTATE_GREEN|LPC17_LEDSTATE_RED),
};
#endif
/************************************************************************************
* Public Data
************************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: lpc17_boardinitialize
*
* Description:
* All LPC17xx architectures must provide the following entry point. This entry point
* is called early in the intitialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
EXTERN void lpc17_boardinitialize(void);
/************************************************************************************
* Name: lpc17_led1 and 2
*
* Description:
* Once the system has booted, these functions can be used to control LEDs 1 and 2
*
************************************************************************************/
#ifdef CONFIG_ARCH_LEDS
EXTERN void lpc17_led1(enum lpc17_ledstate_e state);
EXTERN void lpc17_led2(enum lpc17_ledstate_e state);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_BOARD_BOARD_H */
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