【これは旧バージョンです】 AndroidのBLEラジコンプロポアプリ「BLEPropo」と接続し、RCサーボとDCモータを制御するプログラムです。 mbed HRM1017で動作を確認しています。 BLEPropo → https://github.com/lipoyang/BLEPropo
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BLEを使ったAndroid用ラジコンプロポアプリ「BLEPropo」に対応するmbed HRM1017用ファームウェアです。
BLEPropoは、GitHubにて公開中。
https://github.com/lipoyang/BLEPropo
ラジコンは、mbed HRM1017とRCサーボやDCモータを組み合わせて作ります。
Diff: HRM1017/nordic/app_common/crc16.cpp
- Revision:
- 4:ebda47d22091
- Parent:
- 1:48f6e08a3ac2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HRM1017/nordic/app_common/crc16.cpp Wed Aug 20 13:41:01 2014 +0000 @@ -0,0 +1,31 @@ +/* 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; +}