![](/media/cache/profiles/312e53ccba0b2ddfefd4a1f05b55bcdd.jpg.50x50_q85.jpg)
BLE FOTA APP
It doesn't work with the default FOTA bootloader. It use NVIC_SystemReset() to enter a bootloader.
nRF51822/nordic/app_common/crc16.cpp
- Committer:
- yihui
- Date:
- 2014-10-10
- Revision:
- 1:a607cd9655d7
File content as of revision 1:a607cd9655d7:
/* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is property of Nordic Semiconductor ASA. * Terms and conditions of usage are described in detail in NORDIC * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. * */ #include "crc16.h" #include <stdio.h> uint16_t crc16_compute(const uint8_t * p_data, uint32_t size, const uint16_t * p_crc) { uint32_t i; uint16_t crc = (p_crc == NULL) ? 0xffff : *p_crc; for (i = 0; i < size; i++) { crc = (unsigned char)(crc >> 8) | (crc << 8); crc ^= p_data[i]; crc ^= (unsigned char)(crc & 0xff) >> 4; crc ^= (crc << 8) << 4; crc ^= ((crc & 0xff) << 4) << 1; } return crc; }