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201 lines
8.2 KiB
201 lines
8.2 KiB
/**************************************************************************** |
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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 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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/* 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_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 PIC32MX board has five LEDs. One (D4, lablel "Power") is not |
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* controllable by software. Four are 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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/* 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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