Casio IT-G500 Series Software Manual page 95

(4) COM port list
The following are the COM ports used with Bluetooth.
Serial profile (client)
Serial profile (server)
DUN (Dial-Up Network)
*1 This is the name of the port that handles dialup in BTLIB. Use "BluetoothDUN" as the modem
name.
Simultaneous use of multiple Bluetooth COM ports
Multiple Bluetooth COM ports cannot be opened simultaneously for use.
(5) Action in case of communication interruption
If the radio wave condition in the area is bad and the distance between Bluetooth devices becomes
too long, the Bluetooth devices that cannot use radio wave communications may automatically cut
transmission. Communication interruptions can be checked in user applications as function errors
affecting WriteFile or ReadFile, etc.
In cases where communication is interrupted, carry out the normal Bluetooth interruption process
using the BT tool or user application, and then try to re-establish the same connection. If the normal
Bluetooth interruption process is not performed, mismatches in the internal status of the Bluetooth
stack will occur (for example, the lower layer may be disconnected), making continued Bluetooth
connection impossible.
(6) Processing during suspend and resume
Bluetooth communication is achieved by data communication with the Bluetooth device built into the
terminal.
When the terminal goes into suspend mode while Bluetooth is being used, power to the Bluetooth
device built into the terminal is automatically turned off. After that, when the terminal resumes
operation, power to the Bluetooth device will be also turned on automatically. However, once the
power is turned off, all the parameters related to Bluetooth communication return to their default
states. Therefore it is necessary to disconnect the Bluetooth connection at the higher level, and then
reconnect.
(7) Bluetooth power supply status
ⅰ Bluetooth power is turned on by the following operation.
This is the case if the BluetoothON operation was performed by a tool, and the BTLIB Initialize
function was called.
ⅱ Bluetooth power is turned off by the following operation.
This is the case if the BluetoothOFF operation was performed by a tool, and the BTLIB DeInitialize
function was called.
ⅲ Default state
- The power is off in the default state after a full reset.
ⅳ Operation on terminal reset
- WEC7: The power turns off. However, it is on if the tool selected on after the reset.
- WEH6.5: The power state which preceded the reset is restored.
COM6
COM7
*1
BSP0
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