Suga koubou / IM920

Interplan IM920 library, 920MHz module

Dependents:   IM920_sample IM920_SDlog IM920_sample IM920_sample3 ... more

IM920 ライブラリ

データモード、低速、長距離　の設定で通信するライブラリです。

920MHz無線モジュール

http://www.interplan.co.jp/images/contents/solution/im920.png IM920 （インタープラン製）

  • mbedとモジュールとは、シリアル（TX,RX）、BUSY、RESET端子を接続します。
  • モジュールはあらかじめ、コマンドでノード番号などを設定しておきます。

NECの920MHz近距離無線モジュールもおすすめ

IM920.cpp@0:d3ab05ed8142, 2014-12-26 (annotated)

Committer:
okini3939
Date:
Fri Dec 26 15:35:20 2014 +0000
Revision:
0:d3ab05ed8142
Child:
1:81b2fd407327
1st tiny build.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:d3ab05ed8142 1 #include "IM920.h"
okini3939 0:d3ab05ed8142 2
okini3939 0:d3ab05ed8142 3 IM920::IM920 (PinName tx, PinName rx, PinName busy, PinName reset, int baud) : _im(tx, rx) {
okini3939 0:d3ab05ed8142 4
okini3939 0:d3ab05ed8142 5 memset(&_state, 0, sizeof(_state));
okini3939 0:d3ab05ed8142 6 _state.data = new CircBuffer<char>(CFG_DATA_SIZE);
okini3939 0:d3ab05ed8142 7
okini3939 0:d3ab05ed8142 8 initUart(busy, reset, baud);
okini3939 0:d3ab05ed8142 9 setReset(true);
okini3939 0:d3ab05ed8142 10 wait_ms(100);
okini3939 0:d3ab05ed8142 11 setReset(false);
okini3939 0:d3ab05ed8142 12 }
okini3939 0:d3ab05ed8142 13
okini3939 0:d3ab05ed8142 14 int IM920::init (int node, void(*func)()) {
okini3939 0:d3ab05ed8142 15
okini3939 0:d3ab05ed8142 16 _state.node = node;
okini3939 0:d3ab05ed8142 17 _state.func = func;
okini3939 0:d3ab05ed8142 18
okini3939 0:d3ab05ed8142 19 cmdRDID();
okini3939 0:d3ab05ed8142 20 cmdSTNN(_state.node);
okini3939 0:d3ab05ed8142 21 cmdSTPO(3); // 10dBm
okini3939 0:d3ab05ed8142 22 cmdSTRT(2); // 1.25kbps
okini3939 0:d3ab05ed8142 23 return 0;
okini3939 0:d3ab05ed8142 24 }
okini3939 0:d3ab05ed8142 25
okini3939 0:d3ab05ed8142 26 void IM920::poll () {
okini3939 0:d3ab05ed8142 27
okini3939 0:d3ab05ed8142 28 if (_state.received && _state.buf != NULL)
okini3939 0:d3ab05ed8142 29 if (_state.func != NULL && !_state.data->isEmpty()) {
okini3939 0:d3ab05ed8142 30 _state.func();
okini3939 0:d3ab05ed8142 31 if (_state.data->isEmpty()) {
okini3939 0:d3ab05ed8142 32 _state.received = false;
okini3939 0:d3ab05ed8142 33 }
okini3939 0:d3ab05ed8142 34 }
okini3939 0:d3ab05ed8142 35 }
okini3939 0:d3ab05ed8142 36
okini3939 0:d3ab05ed8142 37 int IM920::send (char *buf, int len) {
okini3939 0:d3ab05ed8142 38
okini3939 0:d3ab05ed8142 39 if (len > 64) len = 64;
okini3939 0:d3ab05ed8142 40
okini3939 0:d3ab05ed8142 41 return sendData(buf, len);
okini3939 0:d3ab05ed8142 42 }
okini3939 0:d3ab05ed8142 43
okini3939 0:d3ab05ed8142 44 int IM920::recv (char *buf, int len) {
okini3939 0:d3ab05ed8142 45 int i;
okini3939 0:d3ab05ed8142 46
okini3939 0:d3ab05ed8142 47 if (_state.data == NULL) return 0;
okini3939 0:d3ab05ed8142 48 while (!_state.received && _state.mode != MODE_COMMAND);
okini3939 0:d3ab05ed8142 49 _state.received = false;
okini3939 0:d3ab05ed8142 50 for (i = 0; i < len; i ++) {
okini3939 0:d3ab05ed8142 51 if (_state.data->dequeue(&buf[i]) == false) break;
okini3939 0:d3ab05ed8142 52 }
okini3939 0:d3ab05ed8142 53 return i;
okini3939 0:d3ab05ed8142 54 }