Help with DataBlock method

[Gonzalo Urroz]

Im trying to read data from the DS1923 Ibutton throgh the DS9490 USB adapter, and i think is not reading anything beacause all i get is 0xFF.. heres the code, can someone tell me what is wrong in the syntaxis?

outBuffer = new byte[size];
                adaptador.Reset();
                GeneralDelay(100);
               
                bool get = adaptador.SelectDevice(DalSemi.OneWire.Utils.Convert.ToByteArray(device)); // Match ROM
                byte[] dataPacket = new byte[11+size];
                byte[] pass = DS1923_SendPass(missionParam.ReadAccess_Pass);
                dataPacket[0] = DS1923_cmdReadmemory; //Comand
                dataPacket[1] = (byte)addressStart;  //Address from wich I want to Read
                dataPacket[2] = (byte)(addressStart >> 8);
                for (int i = 0; i < pass.Length; i++) // filling with the password
                    dataPacket[i + 3] = (byte)pass[i];

               for (int i = 0; i < size; i++)
                    dataPacket[i + 11] = (byte)0xff; //bytes where from the read command  will be written

                for( int i = 0; i<3;i++)
                    adaptador.DataBlock(dataPacket, 0, 11+size);

                for (int i = 0; i < size; i++)
                {
                    outBuffer[i] = dataPacket[i+11];
                    MessageBox.Show(outBuffer[i] + "");
                }
                 adaptador.Reset();
            }

[PerMal]

Hello,

Sorry for the late reply. Check that you are following the correct command sequence, you can find it in the Datasheet for the device.

[Zackary Bonebright]

https://www.ibuttonlink.com/products/ds1923?_pos=1&_sid=752b0b9f3&_ss=r