/** | |
* Copyright (c) 2018, Nordic Semiconductor ASA | |
* | |
* 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, except as embedded into a Nordic | |
* Semiconductor ASA integrated circuit in a product or a software update for | |
* such product, 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 of Nordic Semiconductor ASA nor the names of its | |
* contributors may be used to endorse or promote products derived from this | |
* software without specific prior written permission. | |
* | |
* 4. This software, with or without modification, must only be used with a | |
* Nordic Semiconductor ASA integrated circuit. | |
* | |
* 5. Any software provided in binary form under this license must not be reverse | |
* engineered, decompiled, modified and/or disassembled. | |
* | |
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS | |
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE | |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
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* | |
*/ | |
#include "app_usbd_serial_num.h" | |
#include <stdint.h> | |
#include <stdio.h> | |
#include <string.h> | |
#include <inttypes.h> | |
#include "app_usbd.h" | |
#define SERIAL_NUMBER_STRING_SIZE (12) | |
/**@brief Serial number generated. | |
* | |
* Serial number generated by the @ref serial_number_string_create function. | |
*/ | |
uint8_t g_extern_serial_number[SERIAL_NUMBER_STRING_SIZE + 1]; | |
/**@brief Function for creating the serial number string from a regular C string. | |
* | |
* @param[in] p_serial_number_string The serial number string. Must be terminated with \0. | |
*/ | |
static void string_create(char * p_serial_number_string) | |
{ | |
for (uint32_t i = 0; i < strlen(p_serial_number_string); i++) | |
{ | |
g_extern_serial_number[i] = (uint8_t)p_serial_number_string[i]; | |
} | |
} | |
void app_usbd_serial_num_generate(void) | |
{ | |
char serial_number_string[SERIAL_NUMBER_STRING_SIZE + 1]; | |
const uint16_t serial_num_high_bytes = (uint16_t)NRF_FICR->DEVICEADDR[1] | 0xC000; // The masking makes the address match the Random Static BLE address. | |
const uint32_t serial_num_low_bytes = NRF_FICR->DEVICEADDR[0]; | |
(void)snprintf(serial_number_string, | |
SERIAL_NUMBER_STRING_SIZE + 1, | |
"%04"PRIX16"%08"PRIX32, | |
serial_num_high_bytes, | |
serial_num_low_bytes); | |
string_create(serial_number_string); | |
} |