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RIOT/boards/seeeduino_arch-pro/board.c 1.37 KB
a752c7ab   elopes   add first test an...
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  /*
   * Copyright (C) 2016 Freie Universitรคt Berlin
   *
   * This file is subject to the terms and conditions of the GNU Lesser General
   * Public License v2.1. See the file LICENSE in the top level directory for more
   * details.
   */
  
  /**
   * @ingroup     boards_seeduino_arch-pro
   * @{
   *
   * @file
   * @brief       Board specific implementations for the Seeeduino Arch Pro board
   *
   * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
   * @author      Bas Stottelaar <basstottelaar@gmail.com>
   *
   * @}
   */
  
  #include "board.h"
  
  static void leds_init(void);
  extern void SystemInit(void);
  
  void board_init(void)
  {
      /* initialize core clocks via CMSIS function */
      SystemInit();
      /* initialize the CPU */
      cpu_init();
      /* initialize the boards LEDs */
      leds_init();
  }
  
  /**
   * @brief Initialize the boards on-board LEDs (LED1 to LED4)
   *
   * The LED initialization is hard-coded in this function. As the LEDs are
   * soldered onto the board they are fixed to their CPU pins.
   *
   * The LEDs are connected to the following pins:
   * - LED1: P1.18
   * - LED2: P1.20
   * - LED3: P1.21
   * - LED4: P1.23
   *
   * The LEDs are active-low (current-sink).
   */
  static void leds_init(void)
  {
      /* configure LED pins as output */
      LED_PORT->FIODIR |= (LED0_MASK | LED1_MASK | LED2_MASK | LED3_MASK);
  
      /* turn off all LEDs */
      LED_PORT->FIOSET = (LED0_MASK | LED1_MASK | LED2_MASK | LED3_MASK);
  }