Multitech MTS2BTA-R Manual de usuario Pagina 6
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Chapter 1 – Introduction
Multi-Tech Systems, Inc. SocketWireless Bluetooth AT Commands (S000360H) 6
Changing Configuration
Parameters, such as the Bluetooth Name, Service Name, Class of Device, and Serial Port settings can be
viewed and configured. This can be done locally through the serial port UART or from a remote Bluetooth RF
link. To configure the SocketWireless Bluetooth device, the device must be in command mode by issuing
+++. While in command mode, the SocketWireless Bluetooth device will accept ASCII bytes as commands.
You can use the developer board and the RS-232 cable to connect to a PC and pass ASCII characters
through the terminal to the SocketWireless Bluetooth device. The communications settings should match the
settings used when the SocketWireless Bluetooth device connects. For example, the defaults are:
9600bps
8 bits
No Parity
1 stop bit
Hardware flow control enabled.
Once you change these parameters, you have the option to store them permanently in the non-volatile
memory.
Run your favorite terminal emulator, HyperTerminal, or other program.
• Type AT on your screen and follow it with a carriage return <cr>. You should see "OK" returned to
you. This will verify that your cable and communications settings are correct. When the
SocketWireless device is not connected to another Bluetooth device, you can type the AT commands
directly into the SocketWireless' UART; e.g., you do not have to type +++ to change from data to
command mode.
• Now you can enter any of the AT commands discussed in the following sections. Follow these
commands by <cr>. Valid commands will return an "OK" or a valid response. Invalid commands will
reply ERROR.
• To return to data mode, type ATMD. You can now pass or receive data from a remote connected
Bluetooth device.
Notes:
• If you change communications parameter settings, remember to change your terminal or emulator
communications settings to correspond to the newly created parameter settings.
• AT commands will not echo back to the terminal.
WARNING:
Refrain from streaming ASCII or binary data into the UART when the SocketWireless device does not
have a Bluetooth RF connection established while in command mode. This may overrun the UART
SocketWireless buffer and will not allow you to make a Bluetooth connection. When the
SocketWireless is in the command parser mode, it is looking for valid AT commands followed by
<cr>.
The command ATSW25 may be used to ignore UART data while unconnected. The DCD will indicate
when a connection is made.
Additional Information about the Use of HyperTerminal
Occasionally, we have noticed an unconventional communication operation when using HyperTerminal in
conjunction with a PC using the Windows BTW Bluetooth stack and virtual Comm ports. For example,
communications may work only in one direction. This will require closing both HyperTerminal programs and
starting both HyperTerminal sessions again.
If you experience a Comm error with the BTW Bluetooth stack while connecting to the serial port profile cable
icon, select View from the Menu Bar and click on Refresh to update the service connection. It is
recommended to use Refresh to update local discovered devices and services to eliminate any "caching" of
parameters in memory.
- AT Commands 1
- Reference Guide 1
- Table of Contents 3
- Chapter 1 – Introduction 5
- Changing Configuration 6
- Using Multi-Point Mode 8
- Multipoint Examples 9
- Multi-Point Test Scenarios 10
- Repeater Mode 12
- Chapter 2 - AT Commands 13
- URST Reset 14
- FRST Factory Reset 14
- SI Status Information 15
- Security Commands 19
- Set and Read Device Name 20
- RSN Read Service Name 21
- SP Set PIN 22
- OP Overwrite PIN 23
- Configuration Commands 24
- SW22 Write PIO Direction 26
- SW23 Write PIO Level 27
- SW26 Lock User Settings 29
- SW27 Write LED Rate 29
- SW29 Write PIN Lock Mode 30
- SW30 Write Deep Sleep Mode 30
- Inquiry Commands 31
- Connect as Master Commands 32
- DC Dial Channel 33
- DL Dial Last 34
- LAST Read Last Address 34
- MACLR Master Address Clear 35
- Connect As Slave Command 36
- Disconnect Commands 36
- About Command/Data Mode 37
- Data Mode Commands 37
- Utilities – Cancel Command 38
- Pairing Commands 39
- Low Power Modes Using Sniff 40
- SNIFF Enable Sniff 40
- SSNIFF Enable Auto Sniff 41
- CSNIFF Clear Sniff 41
- XSNIFF Exit Sniff Mode 41
- PARK Enable Park 42
- XPARK Exit Park 42
- Golden Receive Power Range 42
- RSSI Get RSSI Value 42
- LQ Get Link Quality 43
- Max Power Command 44
- Variable Storage Commands 45
- PIO Logic Commands 46
- Commands 47
- FTP Client 48
- DHFTP Dial Hang Up FTP 49
- FTPB FTP Browse 49
- FTP Push/Pull Commands 51
- FTP Server 52
- DOPP Dial OPP 53
- DHOPP Dial Hang Up OPP 53
- OPP Push/Pull Commands 54
- Chapter 4 – Examples 59
- From Power Up 60
- Headset Point-to-Point 60
- Headset Multipoint 60
- Example Client Applications 61
- Description Requires 69
- Appendix B – Responses 72
- Appendix C -- UUID Table 79
- Consumption 80
- Command Responses Comparison 81
- Abbreviations 85
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