/// <summary>
/// Constructs <see cref="AntChannel"/>.
/// </summary>
/// <param name="channel">Underlying <see cref="ANT_Channel"/> object from official ANT managed API.</param>
internal AntChannel(ANT_Channel channel)
{
this.channel = channel;
// todo: for now assigned to network 0 and channel type BASE_Slave_Receive_0x00 automatically, other hardcoded defaults
channel.assignChannel(ANT_ReferenceLibrary.ChannelType.BASE_Slave_Receive_0x00, 0);
channel.setChannelSearchTimeout(255);
}
/// <summary>
/// returns the next clear channel, or null if none available
/// </summary>
public ANT_Channel getNextChannel()
{
if (!initializedUSB)
throw new ObjectDisposedException("ANTDevice object has been disposed");
int num = 0;
while (antChannels[num] != null && num < antChannels.Length)
{
num++;
}
if (num < antChannels.Length)
{
antChannels[num] = new ANT_Channel(this, (byte)num);
}
else
{
return null;
}
return antChannels[num];
}
/// <summary>
/// Returns the requested ANTChannel or throws an exception if channel doesn't exist.
/// </summary>
/// <param name="num">Channel number requested</param>
public ANT_Channel getChannel(int num)
{
if (!initializedUSB)
throw new ObjectDisposedException("ANTDevice object has been disposed");
if(num > antChannels.Length-1 || num < 0)
throw new ANT_Exception("Channel number invalid");
if(antChannels[num] == null)
antChannels[num] = new ANT_Channel(this, (byte)num);
return antChannels[num];
}
public void Search()
{
if (Status == SensorStatus.Disconnected)
{
try
{
_Channel = Device.ANT_Device.getChannel(_Sensor.ChannelNumber); // Get channel from ANT device
_Channel.channelResponse += new dChannelResponseHandler(ChannelResponse); // Add channel response function to receive channel event messages
}
catch (Exception ex)
{
if (Device.ANT_Device == null) // Unable to connect to ANT
{
throw new Exception("Could not connect to any device.\n" +
"Details: \n " + ex.Message);
}
else
{
throw new Exception("Error connecting to ANT: " + ex.Message);
}
}
Console.WriteLine("Assigning channel...");
if (_Channel.assignChannel(ANT_ReferenceLibrary.ChannelType.BASE_Slave_Receive_0x00, Device.NetworkNumber, 500))
Console.WriteLine("Channel assigned");
else
throw new Exception("Error assigning channel");
Console.WriteLine("Setting Channel ID...");
if (_Channel.setChannelID(_Sensor.DeviceNumber, false, _Sensor.DeviceType, _Sensor.TransmissionType, 500)) // Not using pairing bit
Console.WriteLine("Channel ID set");
else
throw new Exception("Error configuring Channel ID");
Console.WriteLine("Setting Channel Period...");
if (_Channel.setChannelPeriod(_Sensor.Period, 500))
Console.WriteLine("Channel Period set");
else
throw new Exception("Error configuring Channel Period");
Console.WriteLine("Setting Radio Frequency...");
if (_Channel.setChannelFreq(_Sensor.RadioFrequency, 500))
Console.WriteLine("Radio Frequency set");
else
throw new Exception("Error configuring Radio Frequency");
Console.WriteLine("Opening channel...");
if (_Channel.openChannel(500))
{
Console.WriteLine("Channel opened");
Status = SensorStatus.Searching;
}
else
{
throw new Exception("Error opening channel");
}
#if (ENABLE_EXTENDED_MESSAGES)
// Extended messages are not supported in all ANT devices, so
// we will not wait for the response here, and instead will monitor
// the protocol events
Console.WriteLine("Enabling extended messages...");
device0.enableRxExtendedMessages(true);
#endif
}
}
private bool OpenGarmin2()
{
//Initialise the ANT library and connect to ANT module
if (device != null)
{
ANT_Device.shutdownDeviceInstance(ref device);
device = null;
}
device = new ANT_Device();
if (device == null)
{
MessageBox.Show("Error initialising ANT module. Ensure the Garmin ANT agent is not running.");
return false;
}
device.ResetSystem();
channel = device.getChannel(0);
//Reset wireless transceiver
device.ResetSystem();
Thread.Sleep(50);
//Pass the callback functions to the ANT_DLL library
device.deviceResponse += new ANT_Device.DeviceResponseHandler(DeviceResponse);
channel.channelResponse += new ANT_Channel.ChannelResponseHandler(ChannelResponse);
//Set network key for Garmin HRM
//The garmin HRM key is "B9A521FBBD72C345"
byte[] GarminKey = { 0xb9, 0xa5, 0x21, 0xfb, 0xbd, 0x72, 0xc3, 0x45 };
device.setNetworkKey(0, GarminKey);
Thread.Sleep(50);
//Assign the channel
//Receive on channel 0, network #0
channel.assignChannel(ANT_ReferenceLibrary.ChannelType.BASE_Slave_Receive_0x00, 0);
//Congifure Channel ID - set up which devices to transmit-receive data from
//Set to receive from any device it finds
ushort device_id = ushort.Parse(txtDeviceID.Text);
channel.setChannelID((ushort)device_id, false, 0, 0);
Thread.Sleep(50);
//Set the receiver search timeout limit
channel.setChannelSearchTimeout(0xff);
Thread.Sleep(50);
//Set the messaging period (corresponding to the max number of messages per second)
//Messaging period for Garmin HRM is 0x1f86
channel.setChannelPeriod(0x1f86);
Thread.Sleep(50);
//Set the radio frequency corresponding to the Garmin watch (frequency 0x39)
channel.setChannelFreq(0x39);
Thread.Sleep(50);
//Open the channel to receive data !
channel.openChannel();
return true;
}
public void Stop()
{
// Nothing to stop if not started or already finished.
if (state == AntState.NotStarted || state == AntState.Finished)
return;
//if (state == AntState.StartFail || state == AntState.ConnectFail)
// return;
if (this.channel != null)
try
{
ANT_Channel tempChannel = this.channel;
this.channel = null;
tempChannel.closeChannel(RESPONSE_WAIT_TIME);
tempChannel.Dispose();
}
catch { }
if (this.device != null)
try
{
ANT_Device tempDevice = this.device;
this.device = null;
// We use a temp var here because this Dispose method is a little strange...
tempDevice.Dispose();
}
catch { }
UpdateState(AntState.Finished);
}
public void Start()
{
if (state != AntState.NotStarted)
{
Debug.LogWarningFormat("[AntStick] Start called a second time (ignored).");
return;
}
UpdateState(AntState.Starting);
ushort deviceId = DEVICE_ID;
try
{
string line = null;
StreamReader reader = new StreamReader(ANT_DEVICE_ID_FILE_PATH, Encoding.Default);
using (reader)
{
line = reader.ReadLine();
reader.Close();
}
if (line == null)
{
Debug.LogWarningFormat("[AntStick] Could not get Ant Device ID from {0}. File exists but is empty.", ANT_DEVICE_ID_FILE_PATH);
}
else
{
deviceId = UInt16.Parse(line);
}
}
catch (FileNotFoundException ex)
{
Debug.LogWarningFormat("[AntStick] Could not get Ant Device ID from {0}. File not found. {1}", ANT_DEVICE_ID_FILE_PATH, ex.Message);
}
catch(FormatException ex)
{
Debug.LogWarningFormat("[AntStick] Could not get Ant Device ID from {0}. Could not parse first line as ushort. {1}", ANT_DEVICE_ID_FILE_PATH, ex.Message);
}
catch (Exception ex)
{
Debug.LogWarningFormat("[AntStick] Could not get Ant Device ID from {0}. Exception occurred. {1}", ANT_DEVICE_ID_FILE_PATH, ex.Message);
}
Debug.LogFormat("[AntStick] Using Device ID {0}.", deviceId);
Stats = new AntStats();
try
{
device = new ANT_Device();
}
catch (ANT_Exception ex)
{
Debug.LogWarningFormat("[AntStick] Could not open device (perhaps something else is using it?).\n{0}", ex.Message);
UpdateState(AntState.StartFail);
Stop();
return;
}
try
{
channel = device.getChannel(CHANNEL);
}
catch (ANT_Exception ex)
{
Debug.LogWarningFormat("[AntStick] Could not get channel {0}.\n{1}", CHANNEL, ex.Message);
UpdateState(AntState.StartFail);
Stop();
return;
}
device.deviceResponse += new ANT_Device.dDeviceResponseHandler(DeviceResponse);
channel.channelResponse += new dChannelResponseHandler(ChannelResponse);
try
{
if (!device.setNetworkKey(NETWORK_NUMBER, NETWORK_KEY, RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to set network key.");
UpdateState(AntState.StartFail);
Stop();
return;
}
if (!channel.assignChannel(CHANNEL_TYPE, NETWORK_NUMBER, RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to assign channel.");
UpdateState(AntState.StartFail);
Stop();
return;
}
if (!channel.setChannelID(deviceId, PAIRING_ENABLED, DEVICE_TYPE, TRANSMISSION_TYPE, RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to set channel Id.");
UpdateState(AntState.StartFail);
Stop();
return;
}
if (!channel.setChannelPeriod(CHANNEL_PERIOD, RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to set channel period.");
UpdateState(AntState.StartFail);
Stop();
return;
}
if (!channel.setChannelFreq(CHANNEL_FREQUENCY, RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to set channel frequency.");
UpdateState(AntState.StartFail);
Stop();
return;
}
if (!channel.openChannel(RESPONSE_WAIT_TIME))
{
Debug.LogWarning("[AntStick] Failed to open the channel.");
UpdateState(AntState.StartFail);
Stop();
return;
}
}
catch (ANT_Exception ex)
{
Debug.LogWarningFormat("[AntStick] Could not configure channel.\n{0}", ex.Message);
UpdateState(AntState.StartFail);
Stop();
return;
}
StartConnectTimeout();
}
////////////////////////////////////////////////////////////////////////////////
// Init
//
// Initialize demo parameters.
//
////////////////////////////////////////////////////////////////////////////////
void Init()
{
try
{
Console.WriteLine("Attempting to connect to an ANT USB device...");
device0 = new ANT_Device(); // Create a device instance using the automatic constructor (automatic detection of USB device number and baud rate)
device0.deviceResponse += new ANT_Device.dDeviceResponseHandler(DeviceResponse); // Add device response function to receive protocol event messages
channel0 = device0.getChannel(user_ant_channel); // Get channel from ANT device
channel0.channelResponse += new dChannelResponseHandler(ChannelResponse); // Add channel response function to receive channel event messages
Console.WriteLine("Initialization was successful!");
}
catch (Exception ex)
{
if (device0 == null) // Unable to connect to ANT
{
throw new Exception("Could not connect to any device.\n" +
"Details: \n " + ex.Message);
}
else
{
throw new Exception("Error connecting to ANT: " + ex.Message);
}
}
}
static void Init()
{
try
{
Console.WriteLine("Attempting to connect to an ANT USB device...");
device0 = new ANT_Device(); // Create a device instance using the automatic constructor (automatic detection of USB device number and baud rate)
device0.deviceResponse += new ANT_Device.dDeviceResponseHandler(DeviceResponse); // Add device response function to receive protocol event messages
channel0 = device0.getChannel(USER_ANT_CHANNEL); // Get channel from ANT device
channel0.channelResponse += new dChannelResponseHandler(ChannelResponse); // Add channel response function to receive channel event messages
Console.WriteLine("Initialization was successful!");
}
catch (Exception ex)
{
//This part is likely to crash, but we want to catch that somewhere else
//We keep the try catch anyway as a reminder.
throw ex;
}
}
public AntDevice(ANT_Device device, AntChannels channel = AntChannels.Channel0, byte networkNum = 0)
{
_antDevice = device;
_channel = _antDevice.getChannel((int)channel);
NetworkNumber = networkNum;
}
