FT311D ftdi android chip

If you download the Demo Projects from this page then there is example Java source for the separate modes the chip implements. It should be easy to translate this to Basic4android as all the I/O is done by streams.

FT311D ftdi android chip

unfortunately it's not that simple for me !!

i'm comunicating with the chip and i have permission but i can't send anything!
i get an error event when trying to send


Dim UsbAcc() As UsbAccessory
UsbAcc = manager.GetAccessories
For i= 0 To UsbAcc.Length - 1
Log( i & " accessorio " & UsbAcc(i))
Next
Log (UsbAcc(0).Description)
Log (UsbAcc(0).Manufacturer)
Log (UsbAcc(0).Model)
Log (UsbAcc(0).Serial)
Log (UsbAcc(0).Uri)
Log (UsbAcc(0).Version)
' -------------------------------------------
If manager.HasAccessoryPermission(UsbAcc(0)) = False Then
manager.RequestAccessoryPermission(UsbAcc(0))
Log("richiesta permesso")
Else
Log("ha permesso")
End If
Log("connetti")
manager.OpenAccessory(UsbAcc (0))

AStreams.InitializePrefix(UsbAcc(0).InputStream, False, UsbAcc(0).OutputStream, "AStreams")
bStreams.Initialize(UsbAcc(0).InputStream, UsbAcc(0).OutputStream, "bStreams"

Sub Button2_Click
Dim UsbAcc() As UsbAccessory
UsbAcc = manager.GetAccessories

If AStreams.IsInitialized = False Then Return
Log("1111")
Dim sNewLine As String
sNewLine ="1234567890abcdefghi"
Dim buffer() As Byte
buffer = sNewLine.GetBytes("UTF8")
AStreams.Write (buffer)
bStreams.Write (buffer)

sout.WriteBytes (buffer , 1, 6)
sout.Flush ' send to serial port


End Sub

Why are you using AsyncStreams?
Why are you assigning the Accessory streams to two different AsyncStreams?
Where is the sout stream defined?

Just read and write to the Accessory streams.

there were only tries!

can you please give me an example of reading and writing the Accessory streams ?

thank's a lot
marco

i tried this but no results
UsbAcc(0).OutputStream.WriteBytes (buffer , 0, buffer.Length)

now i get:


write failed ENODEV(no such device)
code:
UsbAcc(0).OutputStream.WriteBytes (buffer ,1,5 )
UsbAcc(0).OutputStream.Flush

Did you ever solve this?

i'm interested to! anybody make working serial example with ftdi FT311D chip?

js1234 said:

i'm interested to! anybody make working serial example with ftdi FT311D chip?

Click to expand...

Just like you I am also interested! I have a StarTech usb to serial adapter that operates in AOA (Android accessory) mode. These adapters require an external 5 volt source for the adapter to work. I would love to write an app using this device.
Here is the FTDI link with Java examples http://www.ftdichip.com/Support/Doc...T31XD_Android_programmer_guide(FT_000532).pdf

Have you tried it with the new felUsbSerial library?