Suga koubou / NECnfc

NEC Near Field Communication RF module library for mbed H001-000003-001 (950MHz), H001-000013-001 (920MHz), TY24FM-E2024 (2.4GHz)

Dependents:   NECnfc_sample Drone_air Drone_ground

NEC Near Field Communication RF module library

NEC製の近距離無線モジュール用のライブラリです。

詳細はこちら

NECnfc.cpp@7:9c963cb53ef7, 2016-04-07 (annotated)

Committer:
okini3939
Date:
Thu Apr 07 00:56:50 2016 +0000
Revision:
7:9c963cb53ef7
Parent:
6:2e1fc47e5bca 
bug fix;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:337524afec9b 1 /**
okini3939 0:337524afec9b 2 * NEC Near Field Communication RF module library for mbed
okini3939 4:07e752ff8dce 3 * Copyright (c) 2015 Suga
okini3939 0:337524afec9b 4 * Released under the MIT License: http://mbed.org/license/mit
okini3939 0:337524afec9b 5 */
okini3939 0:337524afec9b 6
okini3939 0:337524afec9b 7 /** @file
okini3939 0:337524afec9b 8 * @brief NEC Near Field Communication RF module library for mbed
okini3939 2:9e108187ccfe 9 * @note H001-000003-001 (950MHz), TY24FM-E2024 (2.4GHz), H001-000013-001 (920MHz)
okini3939 0:337524afec9b 10 */
okini3939 0:337524afec9b 11
okini3939 0:337524afec9b 12 #include "mbed.h"
okini3939 0:337524afec9b 13 #include "NECnfc.h"
okini3939 0:337524afec9b 14 #include <string.h>
okini3939 0:337524afec9b 15
okini3939 0:337524afec9b 16
okini3939 4:07e752ff8dce 17 NECnfc::NECnfc (PinName tx, PinName rx, PinName reset, int baud, NECTYPE type) : _nec(tx, rx) {
okini3939 0:337524afec9b 18
okini3939 4:07e752ff8dce 19 _rxbuf = (char*)&_rxmsg;
okini3939 4:07e752ff8dce 20 _type = type;
okini3939 4:07e752ff8dce 21 _msgno = 0;
okini3939 4:07e752ff8dce 22 _id = NEC_DUMMYID;
okini3939 4:07e752ff8dce 23 _received = 0;
okini3939 6:2e1fc47e5bca 24 _rxcount = 0;
okini3939 0:337524afec9b 25
okini3939 4:07e752ff8dce 26 initUart(reset, NC, NC, baud);
okini3939 4:07e752ff8dce 27 setReset(true);
okini3939 4:07e752ff8dce 28 wait_ms(20);
okini3939 4:07e752ff8dce 29 setReset(false);
okini3939 4:07e752ff8dce 30 wait_ms(100);
okini3939 0:337524afec9b 31 }
okini3939 0:337524afec9b 32
okini3939 0:337524afec9b 33
okini3939 4:07e752ff8dce 34 NECnfc::NECnfc (PinName tx, PinName rx, PinName reset, PinName wakeup, PinName mode, int baud, NECTYPE type) : _nec(tx, rx) {
okini3939 0:337524afec9b 35
okini3939 4:07e752ff8dce 36 _rxbuf = (char*)&_rxmsg;
okini3939 4:07e752ff8dce 37 _type = type;
okini3939 4:07e752ff8dce 38 _msgno = 0;
okini3939 4:07e752ff8dce 39 _id = NEC_DUMMYID;
okini3939 4:07e752ff8dce 40 _received = 0;
okini3939 6:2e1fc47e5bca 41 _rxcount = 0;
okini3939 0:337524afec9b 42
okini3939 4:07e752ff8dce 43 initUart(reset, wakeup, mode, baud);
okini3939 4:07e752ff8dce 44 setReset(true);
okini3939 4:07e752ff8dce 45 wait_ms(20);
okini3939 4:07e752ff8dce 46 setReset(false);
okini3939 4:07e752ff8dce 47 wait_ms(100);
okini3939 0:337524afec9b 48 }
okini3939 0:337524afec9b 49
okini3939 4:07e752ff8dce 50 void NECnfc::poll () {
okini3939 4:07e752ff8dce 51
okini3939 4:07e752ff8dce 52 if (_received) {
okini3939 4:07e752ff8dce 53 _func.call();
okini3939 4:07e752ff8dce 54 _received = 0;
okini3939 0:337524afec9b 55 }
okini3939 0:337524afec9b 56 }
okini3939 0:337524afec9b 57
okini3939 4:07e752ff8dce 58 int NECnfc::sendData(int dest, const char *data, int len) {
okini3939 0:337524afec9b 59
okini3939 4:07e752ff8dce 60 if (dest == NEC_DUMMYID) {
okini3939 4:07e752ff8dce 61 if (send(NECMSG_SEND_NOACK, dest, data, len)) {
okini3939 4:07e752ff8dce 62 return -1;
okini3939 0:337524afec9b 63 }
okini3939 4:07e752ff8dce 64 } else {
okini3939 4:07e752ff8dce 65 if (send(NECMSG_SEND_DAT, dest, data, len)) {
okini3939 4:07e752ff8dce 66 return -1;
okini3939 4:07e752ff8dce 67 }
okini3939 4:07e752ff8dce 68 _rssi = _rxmsg.parameter[2];
okini3939 0:337524afec9b 69 }
okini3939 0:337524afec9b 70 return 0;
okini3939 0:337524afec9b 71 }
okini3939 0:337524afec9b 72
okini3939 4:07e752ff8dce 73 int NECnfc::readData(int *dest, int *src, char *data, int len) {
okini3939 4:07e752ff8dce 74 int r;
okini3939 4:07e752ff8dce 75
okini3939 4:07e752ff8dce 76 if (!_received) return -1;
okini3939 5:e5a358e9ed94 77 if (_rxmsg.msgid != NECMSG_SEND_DAT && _rxmsg.msgid != NECMSG_SEND_NOACK) return -1;
okini3939 4:07e752ff8dce 78
okini3939 4:07e752ff8dce 79 r = _rxmsg.length - NEC_HEADER_SIZE;
okini3939 5:e5a358e9ed94 80 if (r > len) r = len;
okini3939 5:e5a358e9ed94 81 memcpy(data, _rxmsg.parameter, r);
okini3939 4:07e752ff8dce 82 if (dest) *dest = ntohl(_rxmsg.dstid);
okini3939 4:07e752ff8dce 83 if (src) *src = ntohl(_rxmsg.srcid);
okini3939 4:07e752ff8dce 84 return r;
okini3939 0:337524afec9b 85 }