/****************************************************************************
*
* Copyright (c) 2012-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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****************************************************************************/
/**
* @file board_serial.h
* Read off the board serial
*
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author David "Buzz" Bussenschutt <davidbuzz@gmail.com>
*
*/
#include "otp.h"
#include "board_config.h"
#include "board_serial.h"
int get_board_serial(uint8_t *serialid)
{
const volatile uint32_t *udid_ptr = (const uint32_t *)UDID_START;
union udid id;
val_read((uint32_t *)&id, udid_ptr, sizeof(id));
/* Copy the serial from the chips non-write memory and swap endianess */
serialid[0] = id.data[3]; serialid[1] = id.data[2]; serialid[2] = id.data[1]; serialid[3] = id.data[0];
serialid[4] = id.data[7]; serialid[5] = id.data[6]; serialid[6] = id.data[5]; serialid[7] = id.data[4];
serialid[8] = id.data[11]; serialid[9] = id.data[10]; serialid[10] = id.data[9]; serialid[11] = id.data[8];
return 0;
}
