SENA Parani-BCD110-210 - Manual (Page 15)

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3.2. Serial Ports
The applicable settings for serial ports are as follows.
Table 3-2 The Parani-BCDx10 Serial Port Settings
Serial Port Settings Values
Baud rate 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200, 230400, 460800,
921600
Data bite 8
Parity No parity, Even parity, Odd parity
Stop bit 1, 2
Hardware Flow Control Use, No Use
The values in box are the factory default settings.
3.3. Data Bit
Parani-BCDx10 supports only 8 data bit. But if both master device and slave device are one of Parani-
SD, Parani-ESD or Parani-BCDx10 or Parani-MSP1000 series, Parani series devices can support 7
data bit and even/odd parity by setting both Parani series devices to 8 data bit and none parity. But 7
data bit and none parity cannot be supported even if both master device and slave device are Parani
series devices.
3.4. Hardware Flow Control
Parani-BCDx10 plugged into its host system transmits data from host to the other side Bluetooth
device. This data is saved temporarily in the internal buffer of Parani-BCDx10 and sent repeatedly until
the transmission is completed packet by packet. When the radio transmission condition is not good
enough to send data promptly, it can cause a transmission delay. If the host sends more data when
the buffer is full, buffer overflow will make Parani-BCDx10 malfunction consequently. In order to
prevent this buffer overflow, Parani-BCDx10 works as follows.
When using hardware flow control, Parani-BCDx10 disables RTS so that it stops receiving any further
data from the host when the buffer becomes full. RTS will be re-enabled again to begin receiving data
from the host when the buffer has created more room for more data.
When hardware flow control is not being used, the Parani-BCDx10 clears the buffer to secure room for
the next data when the buffer becomes full. This can mean a loss of data may occur. As the
transmission data becomes large, the possibility of data loss becomes greater.
For large data transmissions, the use of hardware flow control is highly recommended. (Not support
flow control in Multi-Drop Mode.)
3.5. Remote Configuration
Parani-BCDx10 supports remote configuration. After connecting to the Parani-BCDx10 through
Bluetooth, before sending any other character, send three escape character (default :+). Then, the
Parani-BCDx10 will enter remote configuration mode and print “Please Enter Password”. You have to
enter the password with “AT+PASS” command within 2 minutes. After the password authentication,
you are able to enter any at command except “ATH”, “ATO”, “ATD”, “AT+BTSCAN”, “AT+BTINQ?” and
“AT+BTCANCEL”. The default password is “0000” and it is configurable with “AT+CHPASS” command.