SPPLE is not a standard Bluetooth Profile. You will have to make sure the app can use the custom UUIDs that are needed to communicate and read and write to the app.

The MSP430 device can also connect to an iPhone running an SPPLE application. The application that we use on the iPhone is SPPLE Transfer (a.k.a. SPPLE Chat) which can be downloaded for free from the app store here. There are some changes that need to be made to the SPPLEDemo.c file as well. See below:

• In the function ConfigureSPPLE make the following changes to the if statement. After the comment /* Determine if a service discovery operation has been previously done */ and before the else case.

/* Determine if a service discovery operation has been      */
/* previously done.                                         */
   /*changed for using it with SPPLE chat application on iPhone*/
   if(TRUE)
   {
	Display(("SPPLE Service found on remote device, attempting to read Transmit Credits, and configured CCCDs.\r\n"));			   
			   
	/* Enable Notifications on the proper characteristics.	   */
	EnableDisableNotificationsIndications(LEContextInfo[LEConnectionIndex].ConnectionID, DeviceInfo->ClientInfo.Tx_Client_Configuration_Descriptor, 
                     GATT_CLIENT_CONFIGURATION_CHARACTERISTIC_NOTIFY_ENABLE, GATT_ClientEventCallback_SPPLE);
			   
	ret_val = 0;
}
else

Figure 12-21 File comparison showing changes needed for ConfigureSPPLE

• In the function SendDataCommand add the following code after the SendInfo.BytesSent = 0 and before the comment /* Kick start the send process. */.

LEContextInfo[LEConnectionIndex].SPPLEBufferInfo.TransmitCredits = 1000;
DeviceInfo->ServerInfo.Tx_Client_Configuration_Descriptor        = GATT_CLIENT_CONFIGURATION_CHARACTERISTIC_NOTIFY_ENABLE;

Figure 12-22 File comparision showing changes needed for SendDataCommand

• Load the SPP LE profile on to the MSP430F5438A device by rebuilding the project and flashing it from the project.
• Set up a Terminal Program for the Serial Port that the device is connected to. The serial parameters to use are 115200 Baud, 8, no, 1 and no flow control. Once connected, reset the

     device using Reset S3 button and you should see the stack getting initialized on the terminal.

• On the iPhone open the SPPLE chat application. Choose peripheral mode and turn on advertising.
• On the MSP430 device, StartScanning to find out devices in the area that are connectable. The Bluetooth address of the Iphone should show up something like this:

etLE_Advertising_Report with size 36.
  1 Responses.
  Advertising Type: rtConnectableUndirected.
  Address Type: atRandom.
  Address: 0x79F20C012372.
  RSSI: 0xFFFFFFCB.
  Data Length: 29.
  AD Type: 0x01.
  AD Length: 0x01.
  AD Data: 0x1A
  AD Type: 0x07.
  AD Length: 0x10.
  AD Data: 0x39 0x23 0xCF 0x40 0x73 0x16 0x42 0x9A 0x5C 0x41 0x7E 0x7D 0xC4 0x9A 0x83 0x14
  AD Type: 0x09.
  AD Length: 0x06.
  AD Data: 0x69 0x50 0x68 0x6F 0x6E 0x65

LE>etLE_Advertising_Report with size 36.
  1 Responses.
  Advertising Type: rtScanResponse.
  Address Type: atRandom.
  Address: 0x79F20C012372.
  RSSI: 0xFFFFFFCB.
  Data Length: 0.

• The address type will be random. Note down the address of the device specified.
• Connect to the remote device using the Connectle <bd-addr> 1 command where the bd-addr is the previously noted address.
• Discover services using Discoverspple and configure services using Configurespple.
• Now the two devices are connected. Data from the iphone can be send by typing text on the text box and hitting send.
• Data from the MSP device can be sent using the Senddata command. It is read and displayed automatically in the output window of the app.