| /** |
| * Copyright (c) 2018 - 2019, 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 |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| #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); |
| } |