text: /******************************************************************************
   * The MIT License
   *
   * Copyright (c) 2011 LeafLabs, LLC.
   *
   * Permission is hereby granted, free of charge, to any person
   * obtaining a copy of this software and associated documentation
   * files (the "Software"), to deal in the Software without
   * restriction, including without limitation the rights to use, copy,
   * modify, merge, publish, distribute, sublicense, and/or sell copies
   * of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *****************************************************************************/
  
  /**
   * @file   wirish/boards/maple/include/board/board.h
   * @author Marti Bolivar <mbolivar@leaflabs.com>
   * @brief  Maple board header.
   */
  
  #ifndef _BOARD_MAPLE_H_
  #define _BOARD_MAPLE_H_
  
  /* 72 MHz -> 72 cycles per microsecond. */
  #define CYCLES_PER_MICROSECOND  72
  
  /* Pin number for the built-in button. */
  #define BOARD_BUTTON_PIN        38
  
  /* Pin number for the built-in LED. */
  #define BOARD_LED_PIN           13
  
  /* Number of USARTs/UARTs whose pins are broken out to headers. */
  #define BOARD_NR_USARTS         3
  
  /* USART pin numbers. */
  #define BOARD_USART1_TX_PIN     7
  #define BOARD_USART1_RX_PIN     8
  #define BOARD_USART2_TX_PIN     1
  #define BOARD_USART2_RX_PIN     0
  #define BOARD_USART3_TX_PIN     29
  #define BOARD_USART3_RX_PIN     30
  
  /* Number of SPI ports broken out to headers. */
  #define BOARD_NR_SPI            2
  
  /* SPI pin numbers. */
  #define BOARD_SPI1_NSS_PIN      10
  #define BOARD_SPI1_MOSI_PIN     11
  #define BOARD_SPI1_MISO_PIN     12
  #define BOARD_SPI1_SCK_PIN      13
  #define BOARD_SPI2_NSS_PIN      31
  #define BOARD_SPI2_MOSI_PIN     34
  #define BOARD_SPI2_MISO_PIN     33
  #define BOARD_SPI2_SCK_PIN      32
  
  /* Total number of GPIO pins that are broken out to headers and
   * intended for use. This includes pins like the LED, button, and
   * debug port (JTAG/SWD) pins. */
  #define BOARD_NR_GPIO_PINS      44
  
  /* Number of pins capable of PWM output. */
  #define BOARD_NR_PWM_PINS       15
  
  /* Number of pins capable of ADC conversion. */
  #define BOARD_NR_ADC_PINS       15
  
  /* Number of pins already connected to external hardware.  For Maple,
   * these are just BOARD_LED_PIN, BOARD_BUTTON_PIN, and the debug port
   * pins (see below). */
  #define BOARD_NR_USED_PINS       7
  
  /* Debug port pins. */
  #define BOARD_JTMS_SWDIO_PIN    39
  #define BOARD_JTCK_SWCLK_PIN    40
  #define BOARD_JTDI_PIN          41
  #define BOARD_JTDO_PIN          42
  #define BOARD_NJTRST_PIN        43
  
  /* USB configuration.  BOARD_USB_DISC_DEV is the GPIO port containing
   * the USB_DISC pin, and BOARD_USB_DISC_BIT is that pin's bit. */
  #define BOARD_USB_DISC_DEV      GPIOC
  #define BOARD_USB_DISC_BIT      12
  
  /* Pin aliases: these give the GPIO port/bit for each pin as an
   * enum. These are optional, but recommended. They make it easier to
   * write code using low-level GPIO functionality. */
  enum {
      PA3, PA2, PA0, PA1, PB5, PB6, PA8, PA9, PA10, PB7, PA4, PA7, PA6, PA5, PB8,
      PC0, PC1, PC2, PC3, PC4, PC5, PC13, PC14, PC15, PB9, PD2, PC10, PB0, PB1,
      PB10, PB11, PB12, PB13, PB14, PB15, PC6, PC7, PC8, PC9, PA13, PA14, PA15,
      PB3, PB4
  };
  
  #endif
  