215 lines
8.7 KiB
C
215 lines
8.7 KiB
C
/****************************************************************************
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* configs/sure-pic32mx/include/board.h
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* include/arch/board/board.h
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*
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* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __CONFIGS_SURE_PIC32MX_INCLUDE_BOARD_H
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#define __CONFIGS_SURE_PIC32MX_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Clocking *****************************************************************/
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/* Crystal frequencies */
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#define BOARD_POSC_FREQ 20000000 /* Primary OSC XTAL frequency (20MHz) */
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#define BOARD_SOSC_FREQ 32768 /* Secondary OSC XTAL frequency (32.768KHz) */
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/* Oscillator modes */
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#define BOARD_FNOSC_POSCPLL 1 /* Use primary oscillator w/PLL */
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#define BOARD_POSC_HSMODE 1 /* High-speed crystal (HS) mode */
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/* PLL configuration and resulting CPU clock.
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* CPU_CLOCK = ((POSC_FREQ / IDIV) * MULT) / ODIV
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*/
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#define BOARD_PLL_INPUT BOARD_POSC_FREQ
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#define BOARD_PLL_IDIV 5 /* PLL input divider */
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#define BOARD_PLL_MULT 15 /* PLL multiplier */
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#define BOARD_PLL_ODIV 1 /* PLL output divider */
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#define BOARD_CPU_CLOCK 60000000 /* CPU clock (60MHz = (20MHz / 5) * 15 / 1) */
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/* USB PLL configuration.
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* USB_CLOCK = ((POSC_XTAL / IDIV) * 24) / 2
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*/
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#define BOARD_UPLL_IDIV 5 /* USB PLL divider */
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#define BOARD_USB_CLOCK 48000000 /* USB clock ((20MHz / 5) * 24) / 2 */
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/* Peripheral clock is *not* divided down from CPU clock.
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* PBCLOCK = CPU_CLOCK / PBDIV
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*/
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#define BOARD_PBDIV 1 /* Peripheral clock divisor (PBDIV) */
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#define BOARD_PBCLOCK 60000000 /* Peripheral clock (PBCLK = 60MHz/1) */
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/* Watchdog pre-scaler (re-visit) */
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#define BOARD_WD_ENABLE 0 /* Watchdog is disabled */
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#define BOARD_WD_PRESCALER 8 /* Watchdog pre-scaler */
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/* Timer 1 is a type A timer and is used as system clock. It can be clocked
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* with either the SOSC or the PBCLOCK. We will use the PBCLOCK because it
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* is much more accurate.
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*/
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#undef BOARD_TIMER1_SOSC
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/* LED definitions **********************************************************/
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/* The Sure DB_DP11215 PIC32 Storage Demo Board board has five LEDs. One
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* (D4, lablel "Power") is not controllable by software. Four are
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* controllable by software:
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*
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* D7 "USB" Yellow RD7 Low illuminates
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* D8 "SD" Yellow RD6 Low illuminates
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* D9 "Flash" Yellow RF0 Low illuminates
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* D10 "Error" Red RF1 Low illuminates
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*/
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/* ON OFF */
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/* USB SD FLASH ERROR USB SD FLASH ERROR */
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#define LED_STARTED 0 /* OFF OFF OFF OFF --- --- --- --- */
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#define LED_HEAPALLOCATE 1 /* ON OFF N/C N/C --- --- --- --- */
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#define LED_IRQSENABLED 2 /* OFF ON N/C N/C --- --- --- --- */
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#define LED_STACKCREATED 3 /* ON ON N/C N/C --- --- --- --- */
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#define LED_INIRQ 4 /* N/C N/C ON N/C N/C N/C OFF N/C */
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#define LED_SIGNAL 4 /* N/C N/C ON N/C N/C N/C OFF N/C */
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#define LED_ASSERTION 4 /* N/C N/C ON N/C N/C N/C OFF N/C */
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#define LED_PANIC 5 /* N/C N/C N/C ON N/C N/C N/C OFF */
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#define LED_NVALUES 6
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/* The Sure DB-DP11212 PIC32 General Purpose Demo Board does not have any user
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* controllable LEDs, but does does have a segment LED display. That display is
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* however, obscured by the larger segment display attached to the board and, so,
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* is not supported.
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*/
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/* For distinguishing individual LEDs */
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#define LED_USB 0
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#define LED_SD 1
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#define LED_FLASH 2
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#define LED_ERROR 3
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/* Button Definitions *******************************************************/
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/* The Sure PIC32MX board has three buttons.
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*
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* SW1 (SW_UP, left arrow) RB3 Pulled high, Grounded/low when depressed
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* SW2 (SW_DOWN, down/right arrow) RB2 Pulled high, Grounded/low when depressed
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* SW3 (SW_OK, right arrow) RB4 Pulled high, Grounded/low when depressed
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*/
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#define BUTTON_SW1 0
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#define BUTTON_SW2 1
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#define BUTTON_SW3 2
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#define NUM_BUTTONS 3
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#define BUTTON_SW1_BIT (1 << BUTTON_SW1)
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#define BUTTON_SW2_BIT (1 << BUTTON_SW2)
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#define BUTTON_SW3_BIT (1 << BUTTON_SW3)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Button support.
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*
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* Description:
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* up_buttoninit() must be called to initialize button resources. After
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* that, up_buttons() may be called to collect the current state of all
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* buttons or up_irqbutton() may be called to register button interrupt
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* handlers.
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*
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* After up_buttoninit() has been called, up_buttons() may be called to
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* collect the state of all buttons. up_buttons() returns an 8-bit bit set
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* with each bit associated with a button. See the BUTTON_*_BIT
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* definitions in board.h for the meaning of each bit.
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*
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* up_irqbutton() may be called to register an interrupt handler that will
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* be called when a button is depressed or released. The ID value is a
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* button enumeration value that uniquely identifies a button resource.
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* See the BUTTON_* definitions in board.h for the meaning of enumeration
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* value. The previous interrupt handler address is returned (so that it
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* may restored, if so desired).
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*
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* When an interrupt occurs, it is due to a change on the GPIO input pin
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* associated with the button. In that case, all attached change
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* notification handlers will be called. Each handler must maintain state
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* and determine if the unlying GPIO button input value changed.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_BUTTONS
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EXTERN void up_buttoninit(void);
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EXTERN uint8_t up_buttons(void);
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#ifdef CONFIG_ARCH_IRQBUTTONS
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EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler);
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#endif
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_SURE_PIC32MX_INCLUDE_BOARD_H */
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