cpuid.c
931 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/*
* Copyright (C) 2014-2016 Freie Universität 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.
*/
/**
* @addtogroup cpu_sam0_common
* @{
*
* @file
* @brief Low-level CPUID driver implementation
*
* @author Troels Hoffmeyer <troels.d.hoffmeyer@gmail.com>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdint.h>
#include <string.h>
#include "periph/cpuid.h"
#define WORD0 (*(volatile uint32_t *)0x0080A00C)
#define WORD1 (*(volatile uint32_t *)0x0080A040)
#define WORD2 (*(volatile uint32_t *)0x0080A044)
#define WORD3 (*(volatile uint32_t *)0x0080A048)
void cpuid_get(void *id)
{
uint32_t addr[] = { WORD0, WORD1, WORD2, WORD3 };
memcpy(id, (void *)addr, CPUID_LEN);
}