board.h

at91sam7a3 keil下sdcard驱动

/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
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 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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//------------------------------------------------------------------------------
/// \dir
/// !Purpose
/// 
/// Definition and functions for using AT91SAM7A3-related features, such
/// has PIO pins, memories, etc.
/// 
/// !Usage
/// -# The code for booting the board is provided by board_cstartup.S and
///    board_lowlevel.c.
/// -# For using board PIOs, board characteristics (clock, etc.) and external
///    components, see board.h.
/// -# For manipulating memories (remapping, SDRAM, etc.), see board_memories.h.
//------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------
/// \unit
/// !Purpose
/// 
/// Definition of AT91SAM7A3-EK characteristics, AT91SAM7A3-dependant PIOs and
/// external components interfacing.
/// 
/// !Usage
/// -# For operating frequency information, see "SAM7A3-EK - Operating frequencies".
/// -# For using portable PIO definitions, see "SAM7A3-EK - PIO definitions".
/// -# Several USB definitions are included here (see "SAM7A3-EK - USB device").
//------------------------------------------------------------------------------

#ifndef BOARD_H 
#define BOARD_H

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#if defined(at91sam7a3)
    #include "at91sam7a3/AT91SAM7A3.h"
#else
    #error Board does not support the specified chip.
#endif

//------------------------------------------------------------------------------
//         Definitions
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM7A3-EK - Board Description"
/// This page lists several definition related to the board description.
///
/// !Definitions
/// - BOARD_NAME

/// Name of the board.
#define BOARD_NAME "AT91SAM7A3-EK"
/// Board definition.
#define at91sam7a3ek
/// Family definition (already defined).
//#define at91sam7a3
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM7A3-EK - Operating frequencies"
/// This page lists several definition related to the board operating frequency
/// (when using the initialization done by board_lowlevel.c).
/// 
/// !Definitions
/// - BOARD_MAINOSC
/// - BOARD_MCK

/// Frequency of the board main oscillator.
#define BOARD_MAINOSC           18432000

/// Master clock frequency (when using board_lowlevel.c).
#define BOARD_MCK               48000000
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
// ADC
//------------------------------------------------------------------------------
/// ADC clock frequency, at 10-bit resolution (in Hz)
#define ADC_MAX_CK_10BIT         5000000
/// ADC clock frequency, at 8-bit resolution (in Hz)
#define ADC_MAX_CK_8BIT          8000000
/// Startup time max, return from Idle mode (in 祍)
#define ADC_STARTUP_TIME_MAX       20
/// Track and hold Acquisition Time min (in ns)
#define ADC_TRACK_HOLD_TIME_MIN   600

//------------------------------------------------------------------------------
/// \page "SAM7A3-EK - USB device"
/// This page lists constants describing several characteristics (controller
/// type, D+ pull-up type, etc.) of the USB device controller of the chip/board.
/// 
/// !Constants
/// - BOARD_USB_UDP
/// - BOARD_USB_PULLUP_EXTERNAL
/// - BOARD_USB_NUMENDPOINTS
/// - BOARD_USB_ENDPOINTS_MAXPACKETSIZE
/// - BOARD_USB_ENDPOINTS_BANKS

/// Chip has a UDP controller.
#define BOARD_USB_UDP

/// Indicates the D+ pull-up is external.
#define BOARD_USB_PULLUP_EXTERNAL

/// Number of endpoints in the USB controller.
#define BOARD_USB_NUMENDPOINTS                  6

/// Returns the maximum packet size of the given endpoint.
#define BOARD_USB_ENDPOINTS_MAXPACKETSIZE(i)    ((i == 0) ? 8 : ((i == 4 || i == 5) ? 512 : 64))

/// Returns the number of FIFO banks for the given endpoint.
#define BOARD_USB_ENDPOINTS_BANKS(i)            (((i == 0) || (i == 3)) ? 1 : 2)

/// USB attributes configuration descriptor (bus or self powered, remote wakeup)
#define BOARD_USB_BMATTRIBUTES                  USBConfigurationDescriptor_BUSPOWERED_NORWAKEUP
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM7A3-EK - PIO definitions"
/// This pages lists all the pio definitions contained in board.h. The constants
/// are named using the following convention: PIN_* for a constant which defines
/// a single Pin instance (but may include several PIOs sharing the same
/// controller), and PINS_* for a list of Pin instances.
///  
/// !DBGU
/// - PINS_DBGU
/// 
/// !LEDs
/// - PIN_LED_DS1
/// - PIN_LED_DS2
/// - PIN_LED_DS3
/// - PIN_LED_DS4
/// - PINS_LEDS
/// - LED_DS1
/// - LED_DS2
/// - LED_DS3
/// - LED_DS4
///
/// !Push buttons
/// - PIN_PUSHBUTTON_1
/// - PIN_PUSHBUTTON_2
/// - PIN_PUSHBUTTON_3
/// - PIN_PUSHBUTTON_4
/// - PINS_PUSHBUTTONS
/// - PUSHBUTTON_BP1
/// - PUSHBUTTON_BP2 
/// - PUSHBUTTON_BP3
/// - PUSHBUTTON_BP4
///
/// !Joystick buttons
/// - PIN_JOYSTICK_UP
/// - PIN_JOYSTICK_DOWN
/// - PIN_JOYSTICK_LEFT
/// - PIN_JOYSTICK_RIGHT
/// - PIN_JOYSTICK_LCLIC, PIN_JOYSTICK_PUSH
/// - PINS_JOYSTICK_MOVE, PINS_JOYSTICK_CLIC, PINS_JOYSTICK
/// - JOYSTICK_UP
/// - JOYSTICK_DOWN
/// - JOYSTICK_LEFT
/// - JOYSTICK_RIGHT
/// - JOYSTICK_LCLIC, JOYSTICK_PUSH
///
/// !USART0
/// - PIN_USART0_RXD
/// - PIN_USART0_TXD
/// - PIN_USART0_SCK
/// 
/// !SPI0
/// - PIN_SPI0_MISO
/// - PIN_SPI0_MOSI
/// - PIN_SPI0_SPCK
/// - PINS_SPI0
/// - PIN_SPI0_NPCS3
/// 
/// !SPI1
/// - PIN_SPI1_MISO
/// - PIN_SPI1_MOSI
/// - PIN_SPI1_SPCK
/// - PINS_SPI1
/// - PIN_SPI1_NPCS3
///
/// !PWMC
/// - PIN_PWMC_PWM0
/// - PIN_PWMC_PWM1
/// - PIN_PWMC_PWM2
/// - PIN_PWMC_PWM3
/// - PIN_PWMC_PWM4
/// - PIN_PWMC_PWM5
/// - PIN_PWMC_PWM6
/// - PIN_PWMC_PWM7
/// - PIN_PWM_LED0
/// - PIN_PWM_LED1
/// - CHANNEL_PWM_LED0
/// - CHANNEL_PWM_LED1
/// 
/// !USB
/// - PIN_USB_PULLUP
/// 
/// !ADC
/// - PIN_ADC_ADC0
/// - PIN_ADC_ADC1
/// - PIN_ADC_ADC2
/// - PIN_ADC_ADC3
/// - PIN_ADC_ADC4
/// - PIN_ADC_ADC5
/// - PIN_ADC_ADC6
/// - PIN_ADC_ADC7
/// - PINS_ADC
///
/// !TWI
/// - PINS_TWI
///
/// !MCI
/// - PINS_MCI
///
/// !CAN
/// - PIN_CAN_TRANSCEIVER_RS
/// - PIN_CAN1_TRANSCEIVER_TXD
/// - PIN_CAN1_TRANSCEIVER_RXD
/// - PIN_CAN2_TRANSCEIVER_TXD
/// - PIN_CAN2_TRANSCEIVER_RXD
/// - PINS_CAN_TRANSCEIVER_TXD
/// - PINS_CAN_TRANSCEIVER_RXD

/// DBGU pins (DTXD and DRXD) definitions.
#define PINS_DBGU  {0xC0000000, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}

/// LED #0 pin definition.
#define PIN_LED_DS1   {1 << 20, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
/// LED #1 pin definition.
#define PIN_LED_DS2   {1 << 21, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
/// LED #2 pin definition.
#define PIN_LED_DS3   {1 << 24, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
/// LED #3 pin definition.
#define PIN_LED_DS4   {1 << 25, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
/// List of the four LED pin definitions.
#define PINS_LEDS   PIN_LED_DS1, PIN_LED_DS2, PIN_LED_DS3, PIN_LED_DS4

/// LED DS1 index.
#define LED_DS1      0
/// LED DS2 index.
#define LED_DS2      1
/// LED DS3 index.
#define LED_DS3      2
/// LED DS4 index.
#define LED_DS4      3