Roving Networks RN-374 Manual de usuario descargar pdf (Pagina 11)

Advanced User Manual

www.rovingnetworks.com

rn-bluetooth-um Version 4.77 11/21/2009

809 University Avenue • Los Gatos, CA 95032 • Tel (408) 395-6539 • info@RovingNetworks.com

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SU,<rate> Baudrate, {1200, 2400, 4800, 9600, 19.2, 28.8, 38.4, 57.6, 115K, 230K, 460K,

921K }, only the first 2 characters are needed.

Example: SU,57 sets the baudrate to 57600 baud.

SW,<hex word> Enable low power SNIFF mode. Default is 0000=disabled. SNIFF mode allows

extreme low power operation. Device goes into a deep sleep, and wakes up every

625us * <hex word> to send/receive chars.

Example: SW,0050 enables Sniff mode with interval time of 50 milliseconds

This will cause the module to enter low power sleep, and wake once every 50

milliseconds to check for RF activity. See Section 5.2 for more details on Sniff and

managing power.

SX,<1,0> Bonding, if enabled only accept connections from the device that matches the stored

Bluetooth address register will be accepted. The stored address register can be set

with the SR command or will be set upon the first device pairing.

SZ,<num> Raw baud rate (decimal) allows entering of non-standard baud rates. Based on the

formula num = baudrate * 0.004096.

S~,<0,1> Set profile to use according to the table below. See section 6.1 for more details on

profiles.

<num>

Profile Comments

0 SPP Default , no modem control

1 DUN -DCE Slave or gateway

2 DUN-DTE Master or client

3 MDM SPP With modem control signals

4 SPP and DUN-DCE Multi-profile

S?,<0,1> Role Switch. Enables and disables Role Switch. If set, when an incoming

connection is occurs to a slave mode device, an attempt will be made to force a role

switch, allowing the slave to become the master. This is useful in situations where

high speed data is being sent from the local device up to the remote host, and can

result in better performance. However this may create a situation whereby the

connecting host will not be able to make additional outbound connections

(multipoint) while connected to this device. Default is DISABLED.

S$,<char> Configuration detect character. This allows a change from the default $$$ to some

other character. Factory defaults returns the device to $$$.

S|,<value> Low power connect mode. Disables the Bluetooth radio and LED timers while not

connected. When set, the module will cycle between active (discoverable and

connectable) and low power deep sleep. This can save considerable power when the

module is waiting for long periods of time without a connection. The trade off is

additional latency when connecting or pairing. The value is a four digit number

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 31 32

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