text: /*
   * Copyright (c) 2016, Devan Lai
   *
   * Permission to use, copy, modify, and/or distribute this software
   * for any purpose with or without fee is hereby granted, provided
   * that the above copyright notice and this permission notice
   * appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
   * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
   * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
   * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
   * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
   * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #ifndef BACKUP_H_INCLUDED
  #define BACKUP_H_INCLUDED
  
  #include <stdint.h>
  
  enum BackupRegister {
      BKP0 = 0,
      BKP1,
      BKP2,
      BKP3,
      BKP4,
  };
  
  extern void backup_write(enum BackupRegister reg, uint32_t value);
  extern uint32_t backup_read(enum BackupRegister reg);
  
  #endif
  