nuttx/boards/mips/ubw32/include/board.h

/****************************************************************************
 * boards/mips/ubw32/include/board.h
 * include/arch/board/board.h
 *
 *   Copyright (C) 2012 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_MIPS_UBW32_INCLUDE_BOARD_H
#define __BOARDS_MIPS_UBW32_INCLUDE_BOARD_H

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

#include <nuttx/config.h>

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

/* Clocking *****************************************************************/
/* Crystal frequencies */

#define BOARD_POSC_FREQ        8000000  /* Primary OSC XTAL frequency (8MHz) */
#define BOARD_SOSC_FREQ        32768    /* Secondary OSC XTAL frequency (32.768KHz)
                                         * (Not present on my board) */

/* Oscillator modes */

#define BOARD_FNOSC_POSCPLL    1        /* Use primary oscillator w/PLL */
#define BOARD_POSC_HSMODE      1        /* High-speed crystal (HS) mode */

/* PLL configuration and resulting CPU clock.
 * CPU_CLOCK = ((POSC_FREQ / IDIV) * MULT) / ODIV
 */

#define BOARD_PLL_INPUT        BOARD_POSC_FREQ
#define BOARD_PLL_IDIV         2        /* PLL input divider */
#define BOARD_PLL_MULT         20       /* PLL multiplier */
#define BOARD_PLL_ODIV         1        /* PLL output divider */

#define BOARD_CPU_CLOCK        80000000 /* CPU clock (80MHz = 8MHz * 20 / 2) */

/* USB PLL configuration.
 * USB_CLOCK = ((POSC_XTAL / IDIV) * 24) / 2
 */

#define BOARD_UPLL_IDIV        2        /* USB PLL divider (revisit) */
#define BOARD_USB_CLOCK        48000000 /* USB clock (8MHz / 2) * 24 / 2) */

/* Peripheral clock is divided down from CPU clock.
 * PBCLOCK = CPU_CLOCK / PBDIV
 */

#define BOARD_PBDIV            2        /* Peripheral clock divisor (PBDIV) */
#define BOARD_PBCLOCK          40000000 /* Peripheral clock (PBCLK = 80MHz/2) */

/* Watchdog pre-scaler (re-visit) */

#define BOARD_WD_ENABLE        0        /* Watchdog is disabled */
#define BOARD_WD_PRESCALER     8        /* Watchdog pre-scaler */

/* LED definitions **********************************************************/
/* ----- ----- -------------------------------------------------------------
 * LABEL COLOR CONTROL
 * ----- ----- -------------------------------------------------------------
 * USB   Green   RF3. This could be used by software if USB is not used.
 *                    Otherwise, RF3 is used as the USBID signal.
 * LED1  While   RE2, Pulled up.  Low value illuminates
 * LED2  Red     RE1, Pulled up.  Low value illuminates
 * LED3  Yellow  RE0, Pulled up.  Low value illuminates
 * PWR   Blue    Illuminated when 5V is present, not controlled by software
 */

/* LED index values for use with board_userled() */

#define PIC32MX_UBW32_LED1     0
#define PIC32MX_UBW32_LED2     1
#define PIC32MX_UBW32_LED3     2
#define PIC32MX_UBW32_NLEDS    3

/* LED bits for use with board_userled_all() */

#define PIC32MX_UBW32_LED1_BIT (1 << PIC32MX_UBW32_LED1)
#define PIC32MX_UBW32_LED2_BIT (1 << PIC32MX_UBW32_LED2)
#define PIC32MX_UBW32_LED3_BIT (1 << PIC32MX_UBW32_LED3)

/* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as follows:
 *
 *                           ON                  OFF
 * ------------------------- ---- ---- ---- ---- ---- ----
 *                           LED1 LED2 LED3 LED1 LED2 LED3
 * ------------------------- ---- ---- ---- ---- ---- ----
 * LED_STARTED            0  OFF  OFF  OFF  ---  ---  ---
 * LED_HEAPALLOCATE       1  ON   OFF  N/C  ---  ---  ---
 * LED_IRQSENABLED        2  OFF  ON   N/C  ---  ---  ---
 * LED_STACKCREATED       3  ON   ON   N/C  ---  ---  ---
 * LED_INIRQ              4  N/C  N/C  ON   N/C  N/C  OFF
 * LED_SIGNAL             4  N/C  N/C  ON   N/C  N/C  OFF
 * LED_ASSERTION          4  N/C  N/C  ON   N/C  N/C  OFF
 * LED_PANIC              5  ON   N/C  N/C  OFF  N/C  N/C
 */

#define LED_STARTED            0
#define LED_HEAPALLOCATE       1
#define LED_IRQSENABLED        2
#define LED_STACKCREATED       3
#define LED_INIRQ              4
#define LED_SIGNAL             4
#define LED_ASSERTION          4
#define LED_PANIC              5

#define LED_NVALUES            6

/* The UBW32 board has three buttons.
 *
 * PROGRAM RE7  Pulled high, Grounded/low when depressed
 * USER    RE6  Pulled high, Grounded/low when depressed
 * RESET        Not software accessible
 */

#define BUTTON_PROGRAM         0
#define BUTTON_USER            1
#define NUM_BUTTONS            2

#define BUTTON_PROGRAM_BIT     (1 << BUTTON_PROGRAM)
#define BUTTON_USER_BIT        (1 << BUTTON_USER)

/****************************************************************************
 * Public Types
 ****************************************************************************/

#ifndef __ASSEMBLY__

/****************************************************************************
 * Inline Functions
 ****************************************************************************/

#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#undef EXTERN
#ifdef __cplusplus
}
#endif

#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_MIPS_UBW32_INCLUDE_BOARD_H */