blob: b610e66580bb9bb05442eced72109031f30b507d (
plain)
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Karl Palsson <karlp@ŧweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/desig.h>
uint16_t desig_get_flash_size(void)
{
return DESIG_FLASH_SIZE;
}
void desig_get_unique_id(uint32_t result[])
{
result[0] = DESIG_UNIQUE_ID2;
result[1] = DESIG_UNIQUE_ID1;
result[2] = DESIG_UNIQUE_ID0;
}
void desig_get_unique_id_as_string(char *string,
unsigned int string_len)
{
int i, len;
uint8_t device_id[12];
static const char chars[] = "0123456789ABCDEF";
desig_get_unique_id((uint32_t *)device_id);
/* Each byte produces two characters */
len = (2 * sizeof(device_id) < string_len) ?
2 * sizeof(device_id) : string_len - 1;
for (i = 0; i < len; i += 2) {
string[i] = chars[(device_id[i / 2] >> 0) & 0x0F];
string[i + 1] = chars[(device_id[i / 2] >> 4) & 0x0F];
}
string[len] = '\0';
}
|
