Solvline Eddy Serial v2.5.1.1 - Manual (Page 65)

Eddy User's Guide
65
Data Bit
Eddy-BT supports only 8 data bit. In the case of 7 data bit and even/odd parity, use Eddy-BT 8 data bit and
none parity. At this time, master and slave are Eddy-BT. But 7 data bit and none parity is not support.
Hardware Flow Control)
Eddy-BT 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 Eddy-BT 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
Eddy-BT malfunction consequently. In order to prevent this buffer overflow, Eddy-BT works as follows.
When using hardware flow control, Eddy-BT 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 Eddy-BT 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.)
7.1.3 Configuration
All the slaves should be in the status of waiting for connection either in Mode 2 or Mode 3 and the master
unit tries to connect to the slave units. The master unit needs to be configured to work in a multiple
connection mode using AT+MULTI,x command, which makes master reboots after execution.
AT+MULTI,0 Single Connection Mode
AT+MULTI,1 Multi-Drop Mode
AT+MULTI,2 Node Switching Mode
Passive Active
ATD000195000001
CONNECT000195000001
+++
OK
ATD000195000002
CONNECT000195000002
+++
OK
ATD000195000003
CONNECT000195000003 ATS46=000195000001
OK
ATS54=000195000002
OK
ATS55=000195000003
OK
ATS56=000195000004
OK
AT+MULTI,1 or AT+MULTI,2
OK