John Bailey / XBeeApi

API for communicating with XBee devices.

Dependencies:   CircularBuffer FixedLengthList

Dependents:   XBeeApiTest XBeeApiSimpleATCmdsExample XBeeApiBroadcastExample XBeeApiBroadcastExampleRTOS ... more

Overview

XBeeApi is intended to be a library for providing a high-level API interface to the XBee - for example getChannel() and setChannel(2) methods rather than needing to send( "ATCH" ) and send( "ATCH 2" ) - and then de-code the responses.

See the notebook page here for a description of how the API works & some details on the various classes.

Features:

  • Support for transmission & reception of data packets
  • Support for reading & changing settings
  • Support for "Remote AT" interface to access settings & I/O channels on remote XBees
  • XBeeApi should work if you're using mbed-rtos, though it is not currently threadsafe. Take a look at the XBeeApiBroadcastExampleRTOS example if you're including mbed-rtos.

Example Programs

There are also example programs available:

Transmit

Import programXBeeApiSimpleBroadcastExample

Simple example of how to use XBeeApi - set up the XBee, configure P2P networking then transmit a frame.

Last commit 06 Jul 2014 by John Bailey

Import programXBeeApiBroadcastExample

Example for XBeeAPI; a little more involved than XBeeApiSimpleBroadcastExample with report on failure to set up the XBee and on the transmit status of the message.

Last commit 05 Jul 2014 by John Bailey

Import programXBeeApiBroadcastExampleRTOS

Example of using the XBeeApi library to broadcast a message, based on XBeeApiBroadcastExample. This example shows how to use the library when using mbed-rtos. Before compiling you must open "XbeeApi\Config\XBeeApiCfg.hpp" and change the '#if 0' to '#if 1' on the line above the comment reading "Use RTOS features to make XBeeApi threadsafe"

Last commit 06 Jul 2014 by John Bailey

Settings/Status

Import programXBeeApiSimpleATCmdsExample

Simple example of using XBeeApi to send AT-style commands to the XBee

Last commit 31 Mar 2014 by John Bailey

Import programXBeeApiRemoteATCmdsExample

Example of using the XBeeApi library to send AT commands to remote XBee devices in order to read/write settings

Last commit 13 Jul 2014 by John Bailey

Receive

Import programXBeeApiSimpleReceiveExample

Simple example of using XBeeApi to receive data packets via wireless

Last commit 08 Jul 2014 by John Bailey

Import programXBeeApiReceiveCallbackExample

Example of using the XBeeApi library to receive a message via a callback method

Last commit 08 Jul 2014 by John Bailey

Import programXBeeApiReceiveCallbackExampleRTOS

Example of using the XBeeApi library to receive a message via a callback method. This example shows how to use the library when using mbed-rtos. See the comment at the top of main.cpp

Last commit 08 Jul 2014 by John Bailey

Remote I/O

Import programXBeeApiRemoteIOExample

Example of using the XBeeApi library to read inputs on a remote XBee

Last commit 28 Jul 2014 by John Bailey

If you have 2 mbed connected XBees available then you can use XBeeApiSimpleReceiveExample and XBeeApiSimpleBroadcastExample as a pair.

Note that this is still a work in progress! XBeeApiTodoList tracks some of the functionality still to be added.

RXTX/XBeeApiRxFrame.cpp@27:6356ef5fe39b, 2014-02-05 (annotated)

Committer:
johnb
Date:
Wed Feb 05 22:14:48 2014 +0000
Revision:
27:6356ef5fe39b
Parent:
23:0e92813b5a50
Child:
34:2535760d53a6
RX message decoding

Who changed what in which revision?

UserRevisionLine numberNew contents of line
johnb 22:2e5aff1149a2 1 /**
johnb 22:2e5aff1149a2 2
johnb 22:2e5aff1149a2 3 Copyright 2014 John Bailey
johnb 22:2e5aff1149a2 4
johnb 22:2e5aff1149a2 5 Licensed under the Apache License, Version 2.0 (the "License");
johnb 22:2e5aff1149a2 6 you may not use this file except in compliance with the License.
johnb 22:2e5aff1149a2 7 You may obtain a copy of the License at
johnb 22:2e5aff1149a2 8
johnb 22:2e5aff1149a2 9 http://www.apache.org/licenses/LICENSE-2.0
johnb 22:2e5aff1149a2 10
johnb 22:2e5aff1149a2 11 Unless required by applicable law or agreed to in writing, software
johnb 22:2e5aff1149a2 12 distributed under the License is distributed on an "AS IS" BASIS,
johnb 22:2e5aff1149a2 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
johnb 22:2e5aff1149a2 14 See the License for the specific language governing permissions and
johnb 22:2e5aff1149a2 15 limitations under the License.
johnb 22:2e5aff1149a2 16
johnb 22:2e5aff1149a2 17 */
johnb 22:2e5aff1149a2 18
johnb 22:2e5aff1149a2 19 #include "XBeeApiRxFrame.hpp"
johnb 22:2e5aff1149a2 20
johnb 22:2e5aff1149a2 21 XBeeApiRxFrame::XBeeApiRxFrame( XBeeDevice* p_device ) : XBeeApiFrame(), XBeeApiFrameDecoder( p_device )
johnb 22:2e5aff1149a2 22 {
johnb 22:2e5aff1149a2 23 }
johnb 22:2e5aff1149a2 24
johnb 22:2e5aff1149a2 25 XBeeApiRxFrame::~XBeeApiRxFrame( void )
johnb 22:2e5aff1149a2 26 {
johnb 22:2e5aff1149a2 27 }
johnb 22:2e5aff1149a2 28
johnb 22:2e5aff1149a2 29 bool XBeeApiRxFrame::decodeCallback( const uint8_t* const p_data, size_t p_len )
johnb 22:2e5aff1149a2 30 {
johnb 22:2e5aff1149a2 31 bool ret_val = false;
johnb 22:2e5aff1149a2 32
johnb 27:6356ef5fe39b 33 /* TODO: Length check */
johnb 27:6356ef5fe39b 34
johnb 22:2e5aff1149a2 35 if(( XBEE_CMD_RX_64B_ADDR == p_data[ XBEE_CMD_POSN_API_ID ] ) ||
johnb 22:2e5aff1149a2 36 ( XBEE_CMD_RX_16B_ADDR == p_data[ XBEE_CMD_POSN_API_ID ] ))
johnb 22:2e5aff1149a2 37 {
johnb 27:6356ef5fe39b 38 size_t pos = XBEE_CMD_POSN_ID_SPECIFIC_DATA;
johnb 27:6356ef5fe39b 39
johnb 27:6356ef5fe39b 40 /* Depending on the frame type, decode either a 64- or 16-bit address */
johnb 27:6356ef5fe39b 41 if( XBEE_CMD_RX_64B_ADDR == p_data[ XBEE_CMD_POSN_API_ID ] )
johnb 27:6356ef5fe39b 42 {
johnb 27:6356ef5fe39b 43 m_addr = (((uint64_t)p_data[ pos ]) << 54U ) |
johnb 27:6356ef5fe39b 44 (((uint64_t)p_data[ pos+1 ]) << 48U ) |
johnb 27:6356ef5fe39b 45 (((uint64_t)p_data[ pos+2 ]) << 40U ) |
johnb 27:6356ef5fe39b 46 (((uint64_t)p_data[ pos+3 ]) << 32U ) |
johnb 27:6356ef5fe39b 47 (((uint64_t)p_data[ pos+4 ]) << 24U ) |
johnb 27:6356ef5fe39b 48 (((uint64_t)p_data[ pos+5 ]) << 16U ) |
johnb 27:6356ef5fe39b 49 (((uint64_t)p_data[ pos+6 ]) << 8U ) |
johnb 27:6356ef5fe39b 50 p_data[ pos+7 ];
johnb 27:6356ef5fe39b 51 pos += sizeof( uint64_t );
johnb 27:6356ef5fe39b 52 m_addrIs16bit = false;
johnb 27:6356ef5fe39b 53 }
johnb 27:6356ef5fe39b 54 else
johnb 27:6356ef5fe39b 55 {
johnb 27:6356ef5fe39b 56 m_addr = (((uint16_t)p_data[ pos ]) << 8U ) |
johnb 27:6356ef5fe39b 57 p_data[ pos+1 ];
johnb 27:6356ef5fe39b 58 pos += sizeof( uint16_t );
johnb 27:6356ef5fe39b 59 m_addrIs16bit = true;
johnb 27:6356ef5fe39b 60 }
johnb 27:6356ef5fe39b 61
johnb 27:6356ef5fe39b 62 m_rssi += p_data[ pos++ ];
johnb 27:6356ef5fe39b 63
johnb 27:6356ef5fe39b 64 m_addressBroadcast = p_data[ pos ] & 2U;
johnb 27:6356ef5fe39b 65 m_panBroadcast = p_data[ pos ] & 4U;
johnb 27:6356ef5fe39b 66 pos++;
johnb 27:6356ef5fe39b 67
johnb 27:6356ef5fe39b 68 m_data = &( p_data[ pos ] );
johnb 27:6356ef5fe39b 69 /* -1 to account for the checksum */
johnb 27:6356ef5fe39b 70 m_dataLen = p_len - pos - 1;
johnb 27:6356ef5fe39b 71
johnb 27:6356ef5fe39b 72 frameRxCallback();
johnb 27:6356ef5fe39b 73
johnb 27:6356ef5fe39b 74 ret_val = true;
johnb 22:2e5aff1149a2 75 }
johnb 22:2e5aff1149a2 76
johnb 22:2e5aff1149a2 77 return ret_val;
johnb 22:2e5aff1149a2 78 }
johnb 27:6356ef5fe39b 79
johnb 27:6356ef5fe39b 80 void XBeeApiRxFrame::frameRxCallback( void )
johnb 27:6356ef5fe39b 81 {
johnb 27:6356ef5fe39b 82 }