National Semiconductor LMX9838, Руководство пользователя

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TABLE 14. Packet Type Identification
ID Direction Description
0x52
'R' REQUEST
(REQ) A request sent to the Bluetooth module.
All requests are answered by exactly one confirm.
0x43
'C' Confirm
(CFM) The Bluetooth modules confirm to a request.
All requests are answered by exactly one confirm.
0x69
'i' Indication
(IND) Information sent from the Bluetooth module that is not a direct confirm to a request.
Indicating status changes, incoming links, or unrequested events.
0x72
'r' Response
(RES) An optional response to an indication.
This is used to respond to some type of indication message.
16.2 COMMAND SET OVERVIEW
The LMX9838 has a well defined command set to:
•
Configure the device:
—
Hardware settings
—
Local Bluetooth parameters
—
Service database
• Set up and handle links
Table 15 through Table 25 show the actual command set and
the events coming back from the device. A full documented
description of the commands can be found in the “LMX9838
Software User’s Guide”.
Note: For standard Bluetooth operation only commands from Table 15
through Table 17 will be used. Most of the remaining commands are
for configuration purposes only.
TABLE 15. Device Discovery
Command Event Description
Inquiry Inquiry Complete Search for devices
Device Found Lists BDADDR and class of device
Remote Device Name Remote Device Name Confirm Get name of remote device
TABLE 16. SDAP Client Commands
Command Event Description
SDAP Connect SDAP Connect Confirm Create an SDP connection to remote device
SDAP Disconnect SDAP Disconnect Confirm Disconnect an active SDAP link
Connection Lost Notification for lost SDAP link
SDAP Service Browse Service Browse Confirm Get the services of the remote device
SDAP Service Search SDAP Service Search Confirm Search a specific service on a remote device
SDAP Attribute Request SDAP Attribute Request Confirm Searches for services with specific attributes
TABLE 17. SPP Link Establishment
Command Event Description
Establish SPP Link Establishing SPP Link Confirm Initiates link establishment to a remote device
Link Established Link successfully established
Incoming Link A remote device established a link to the local device
Set Link Timeout Set Link Timeout Confirm Confirms the Supervision Timeout for the existing Link
Get Link Timeout Get Link Timeout Confirm Get the Supervision Timeout for the existing Link
Release SPP Link Release SPP Link Confirm Initiate release of SPP link
SPP Send Data SPP Send Data Confirm Send data to specific SPP port
Incoming Data Incoming data from remote device
Transparent Mode Transparent Mode Confirm Switch to Transparent mode on the UART
TABLE 18. Storing Default Connections
Command Event Description
Connect Default Connection Connect Default Connection Confirm Connects to either one or all stored default connections
Store Default Connection Store Default Connection Confirm Store device as default connection
Get list of Default Connections List of Default Devices
Delete Default Connections Delete Default Connections Confirm
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LMX9838