nuttx/boards/hc/m9s12/ne64badge/include/board.h

/****************************************************************************
 * boards/hc/m9s12/ne64badge/include/board.h
 *
 *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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 __BOARDS_HC_MCS92S12NE64_NE64BADGE_INCLUDE_BOARD_H
#define __BOARDS_HC_MCS92S12NE64_NE64BADGE_INCLUDE_BOARD_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Clocking *****************************************************************/

/* Frequency of the crystal oscillator */

#define HCS12_OSCCLK      16000000 /* 16MHz */

/* PLL Settings
 *
 * SYNR register controls the multiplication factor of the PLL.
 * If the PLL is on, the count in the loop divider (SYNR) register
 * effectively multiplies up the PLL clock (PLLCLK) from the reference
 * frequency by 2 x (SYNR+1). PLLCLK will not be below
 * the minimum VCO frequency (fSCM).
 *
 * The REFDV register provides a finer granularity for the PLL multiplier
 * steps.
 * The count in the reference divider divides OSCCLK frequency by REFDV + 1.
 *
 *   PLLCLK = 2 * OSCCLK * (SYNR + 1) / (REFDV + 1)
 *
 * If (PLLSEL = 1), Bus Clock = PLLCLK / 2
 */

#define HCS12_SYNR_VALUE  0x15
#define HCS12_REFDV_VALUE 0x15
#define HCS12_PLLCLK      (2*HCS12_OSCCLK*(HCS12_SYNR+1)/(HCS12_REFDV+1))
#define HCS12_BUSCLK      (HSC12_PLLCLK/2)

/* LED definitions **********************************************************/

/* The NE64 Badge board has 2 red LEDs that we will encode as: */

                             /* LED1 LED2 */
#define LED_STARTED       0  /*  OFF  OFF = Still initializing */
#define LED_HEAPALLOCATE  0  /*  OFF  OFF = Still initializing */
#define LED_IRQSENABLED   0  /*  OFF  OFF = Still initializing */
#define LED_STACKCREATED  1  /*  ON   OFF = Initialization complete */
#define LED_INIRQ         2  /*  NC   ON  = In an interrupt handler */
#define LED_SIGNAL        2  /*  NC   ON  = In a signal handler */
#define LED_ASSERTION     2  /*  NC   ON  = In an assertion */
#define LED_PANIC         2  /*  NC   ON  = Oops! We crashed. (flashing) */

/* Button definitions *******************************************************/

/* The NE64 badge has 2 switches,
 * one labed SW1 and the other SW2 on the board (but
 * referred to as button1 and button2 in some documentation)
 */

#define BUTTON1           1 /* Bit 0: SW1 button is depressed */
#define BUTTON2           2 /* Bit 1: SW2 button is depressed */

#endif  /* __BOARDS_HC_MCS92S12NE64_NE64BADGE_INCLUDE_BOARD_H */