Sena Parani-SD 100, Руководство пользователя

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Parani-SD100 User Manual – 2. Configurations
7
Operation Modes
In addition to the serial port configurations such as bit/second, data bit, parity, stop bit, flow control, Parani-SD has
some configurations for Bluetooth. For getting the most out of Parani-SD100, user should understand the following
Bluetooth connection schemes.
A Bluetooth device can play a role as a master or slave. Master tries to connect itself to other Bluetooth device, and
slave is waiting to be connected from other Bluetooth devices. A Bluetooth connection is always made by a pair of
master and slave. A slave can be in two modes, Inquiry Scan or Page Scan mode. Inquiry Scan mode is waiting the
packet of inquiry from other Bluetooth devices and Page Scan mode is waiting the packet of connection from other
Bluetooth devices. Every Bluetooth device has its unique address, called BD (Bluetooth Device) address, which is
composed of 12 hexa-decimal numbers.
Parani-SD100 has 4 operation modes as follows. Each mode can be identified with LED indicators as illustrated in next
section.
Ì
Mode0
Parani-SD100 must be in Mode0, when it is directly controlled by AT commands.
In this mode, there is no response when power on or software reset, and Parani-SD100 is just waiting for AT command
input. Neither master nor slave is assigned to Parani-SD100 in mode0. User can change the configurations of Parani-
SD100 in this mode.
The factory default is set to Mode0.
Ì
Mode1
Parani-SD100 tries to connect the last connected Bluetooth device.
Parani-SD100 in Mode1 is to be a master and tries to connect the last connected Bluetooth device. Parani-SD100
always stores the BD address of the Bluetooth device to which Parani-SD100 has connected last time. When Parani-
SD100 is initially used or after hardware reset, there is no BD address stored in Parani-SD100. In this case, Mode1 does not
make any sense and mode change from other operation modes to Mode1 is not allowed. The mode change to
Mode1 can be made after Parani-SD100 succeeds to connect to other Bluetooth device in Mode0. Once changed to
Mode1, Parani-SD100 will try to connect automatically the last connected Bluetooth device whenever power on or
software reset.
Parani-SD100 in Mode1 cannot be discovered or connected by other Bluetooth devices.
Ì
Mode2
Parani-SD100 is waiting for the connection from the last connected Bluetooth device.
Parani-SD100 in Mode2 is to be a slave and waiting for the connection only from the last connected Bluetooth device.
Just like Mode1, if there is no BD address stored in Parani-SD100, the mode change from other operation modes to
Mode2 is not allowed. Once changed to Mode2, Parani-SD100 will wait for the connection from the last connected
Bluetooth device whenever power on or software reset.
Parani-SD100 in Mode2 cannot be discovered or connected to Bluetooth devices other than the last connected
device.
Ì
Mode3
Parani-SD100 is waiting for the connection from any other Bluetooth devices.
Parani-SD100 in Mode3 acts like in Mode2, but allows any connection from other Bluetooth device. Most of general
Bluetooth device is set to Mode3.
Parani-SD100 in Mode3 can be discovered and connected from any other Bluetooth devices.