ChibiOS/os/hal/platforms/LPC11xx/hal_lld.h

/*
    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.

    This file is part of ChibiOS/RT.

    ChibiOS/RT is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    ChibiOS/RT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * @file    LPC11xx/hal_lld.h
 * @brief   HAL subsystem low level driver header template.
 *
 * @addtogroup LPC11xx_HAL
 * @{
 */

#ifndef _HAL_LLD_H_
#define _HAL_LLD_H_

#include "LPC11xx.h"
#include "nvic.h"

/*===========================================================================*/
/* Driver constants.                                                         */
/*===========================================================================*/

/**
 * @brief   Platform name.
 */
#define PLATFORM_NAME           "LPC11xx"

#define IRCOSCCLK               12000000    /**< High speed internal clock. */

#define SYSPLLCLKSEL_IRCOCS     0           /**< Internal RC oscillator
                                                 clock source.              */
#define SYSPLLCLKSEL_SYSOSC     1           /**< System oscillator clock
                                                 source.                    */

/*===========================================================================*/
/* Driver pre-compile time settings.                                         */
/*===========================================================================*/

/**
 * @brief   System PLL clock source.
 */
#if !defined(LPC11xx_SYSPLL_SOURCE) || defined(__DOXYGEN__)
#define LPC11xx_SYSPLLCLKSEL    SYSPLLCLKSEL_SYSOSC
#endif

/**
 * @brief   System PLL multiplier.
 * @note    The value must be in the 1..32 range and the final frequency
 *          must not exceed the CCO ratings.
 */
#if !defined(LPC11xx_SYSPLL_MUL) || defined(__DOXYGEN__)
#define LPC11xx_SYSPLL_MUL      16
#endif

/*===========================================================================*/
/* Derived constants and error checks.                                       */
/*===========================================================================*/

#if LPC11xx_SYSPLLCLKSEL == SYSPLLCLKSEL_SYSOSC
#define LPC11xx_SYSPLLCLKIN     SYSOSCCLK
#elif LPC11xx_SYSPLLCLKSEL == SYSPLLCLKSEL_IRCOCS
#define LPC11xx_SYSPLLCLKIN     IRCOSCCLK
#else
#error "invalid LPC11xx_SYSPLLCLKSEL clock source specified"
#endif

#if (LPC11xx_SYSPLL_MUL < 1) || (LPC11xx_SYSPLL_MUL > 32)
#error "LPC11xx_SYSPLL_MUL out of range (1...32)"
#endif

/**
 * @brief   PLL output clock.
 */
#define  LPC11xx_SYSPLLCLKOUT   (LPC11xx_SYSPLLCLKIN * LPC11xx_SYSPLL_MUL)

#if (LPC11xx_SYSPLLCLKOUT < 156000000) || (LPC11xx_SYSPLLCLKOUT > 320000000)
#error "CCO frequency out of the acceptable range (156...320)"
#endif

/*===========================================================================*/
/* Driver data structures and types.                                         */
/*===========================================================================*/

/*===========================================================================*/
/* Driver macros.                                                            */
/*===========================================================================*/

/*===========================================================================*/
/* External declarations.                                                    */
/*===========================================================================*/

#ifdef __cplusplus
extern "C" {
#endif
  void hal_lld_init(void);
  void lpc111x_clock_init(void);
#ifdef __cplusplus
}
#endif

#endif /* _HAL_LLD_H_ */

/** @} */