/// <summary>
/// Initialize the sensor. This step will perform a reset of the 1-wire bus.
/// It will check for existence of a 1-wire device. If no address was provided, then the
/// 1-wire bus will be searched and the first device that matches the family code will be latched on to.
/// Developer should check for successful initialization by checking the Address property.
/// It should have valid 64-bit value
/// </summary>
public override void Initialize()
{
bool found = true;
if (Address == null) //search for a device with the required family code
{
found = false;
if (_oneWire.FindFirstDevice(true, false)) //Current nF firmware works if reset if performed before a find operation
{
do
{
if (_oneWire.SerialNumber[0] == FAMILY_CODE)
{
//found the device
Address = new byte[_oneWire.SerialNumber.Length];
Array.Copy(_oneWire.SerialNumber, Address, _oneWire.SerialNumber.Length);
found = true;
break;
}
} while (_oneWire.FindNextDevice(true, false));//keep searching until we get one
}
}
if (!found)
{
throw new Exception();
}
}
/// <summary>
/// Initialize the sensor. This step will perform a reset of the 1-wire bus.
/// It will check for existence of a 1-wire device. If no address was provided, then the
/// 1-wire bus will be searched and the first device that matches the family code will be latched on to.
/// Developer should check for successful initialization by checking the value returned.
/// It must be bigger than 0.
/// If in Multidrop mode will keep seaching until find last device, saving all in AddressNet array.
/// </summary>
public bool Initialize()
{
Found = 0;
//ArrayList allDevices;
ArrayList allDevices = new ArrayList();
_oneWire.TouchReset();
if (Address == null) //search for a device with the required family code
{
//found the device
if (Multidrop)
{
if (_oneWire.FindFirstDevice(false, searchMode))
{
do
{
if (_oneWire.SerialNumber[0] == FAMILY_CODE)
{
_oneWire.TouchReset();
Address = new byte[_oneWire.SerialNumber.Length];
Array.Copy(_oneWire.SerialNumber, Address, _oneWire.SerialNumber.Length);
Found++;
allDevices.Add(Address);
//if (Found == 6) { break; } //Temp fix during test endless loop
}
} while (_oneWire.FindNextDevice(false, searchMode));//keep searching until we get one
}
if (Found > 0)
{
AddressNet = new byte[Found][];
int i = 0;
foreach (byte[] device in allDevices)
{
AddressNet[i] = new byte[device.Length];
Array.Copy(device, AddressNet[i], device.Length);
i++;
}
allDevices = null;
}
}
else
{
if (_oneWire.FindFirstDevice(true, searchMode))
{
do
{
if (_oneWire.SerialNumber[0] == FAMILY_CODE)
{
Address = new byte[_oneWire.SerialNumber.Length];
Array.Copy(_oneWire.SerialNumber, Address, _oneWire.SerialNumber.Length);
Found = 1;
break;
}
} while (_oneWire.FindNextDevice(true, searchMode));//keep searching until we get one
}
}
}
if (Found > 0)
{
return(true);
}
;
return(false);
}
public static void Main()
{
// get controller for OneWire
OneWireController oneWire = new OneWireController();
////////////////////////////////////////////////////////////////////
// Sample code to read serial number for a devices present in bus
//
// With this approach, three steps are needed:
// - Reset 1-Wire bus
// - Transmit Read ROM command
// - Read 8 bytes (serial number)
////////////////////////////////////////////////////////////////////
byte[] state = new byte[13];
// check for devices present with a bus reset
if (oneWire.TouchReset())
{
Debug.WriteLine("Device present");
// tx READ ROM
var res = oneWire.WriteByte(0x33);
// now read 8 byte for SN
// and output serial number nicelly formated in hexa
for (int i = 0; i < 8; i++)
{
// read byte
state[i] = oneWire.TouchByte(0xFF);
// output byte
Debug.Write(state[i].ToString("X2"));
}
Debug.WriteLine("");
}
else
{
Debug.WriteLine("!! No devices found !!");
}
////////////////////////////////////////////////////////////////////
// Sample code to read serial number for a devices present in bus
//
// Just call FindFirstDevice and it will fill OneWire SerialNumber
// buffer with the 1-Wire device serial number present in bus
////////////////////////////////////////////////////////////////////
if (oneWire.FindFirstDevice(true, false))
{
Debug.WriteLine("device found:");
// output serial number nicelly formated in hexa
for (int i = 0; i < 8; i++)
{
Debug.Write(oneWire.SerialNumber[i].ToString("X2"));
}
Debug.WriteLine("");
}
else
{
Debug.WriteLine("!! No devices found !!");
}
////////////////////////////////////////////////////////////////////
// Sample code to read serial number for all devices present in bus
//
// Just call FindAllDevices and it will return an array list with
// all 1-Wire devices serial numbers present in bus
////////////////////////////////////////////////////////////////////
ArrayList snList = oneWire.FindAllDevices();
if (snList.Count > 0)
{
Debug.WriteLine(String.Format("{0} devices found", snList.Count));
foreach (byte[] sn in snList)
{
// output serial number nicelly formated in hexa
for (int i = 0; i < 8; i++)
{
Debug.Write(sn[i].ToString("X2"));
}
Debug.WriteLine("");
}
}
else
{
Debug.WriteLine("!! No devices found !!");
}
Thread.Sleep(Timeout.Infinite);
}