public async void Connect()
{
try
{
string availableSerialDevices = SerialDevice.GetDeviceSelector();
var asyncDevices = await DeviceInformation.FindAllAsync(availableSerialDevices);
DeviceInformation entry = asyncDevices[0];
uart = await SerialDevice.FromIdAsync(entry.Id);
uart.WriteTimeout = TimeSpan.FromMilliseconds(1000);
uart.ReadTimeout = TimeSpan.FromMilliseconds(1000);
uart.BaudRate = 57600; // Need to parametise
uart.Parity = SerialParity.None;
uart.StopBits = SerialStopBitCount.One;
uart.DataBits = 8;
uart.Handshake = SerialHandshake.None;
portOpen = true;
portStatus = UARTstatus.Open;
}
catch (Exception ex)
{
portMessage = ex.Message;
}
}
private void CloseDevice()
{
if (uart != null)
{
uart.Dispose();
}
uart = null;
portStatus = UARTstatus.Closed;
}
private async Task ReadAsync(CancellationToken token)
{
Task <UInt32> loadAsyncTask;
uint ReadBufferLength = 1024;
// If task cancellation was requested, comply
token.ThrowIfCancellationRequested();
// Set InputStreamOptions to complete the asynchronous read operation when one or more bytes is available
dataReaderObject.InputStreamOptions = InputStreamOptions.Partial;
// Create a task object to wait for data on the serialPort.InputStream
loadAsyncTask = dataReaderObject.LoadAsync(ReadBufferLength).AsTask(token);
// Launch the task and wait
UInt32 bytesRead = await loadAsyncTask;
if (bytesRead > 0)
{
message = dataReaderObject.ReadString(bytesRead);
portStatus = UARTstatus.Read;
}
}