User's Manual

Enhanced Class 1 Bluetooth v2.1 Module
User’s Guide
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www.lairdtech.com/wireless
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CONN-GUIDE-BT740_v0.2
Note 3: This capability enables the state of between 2 and 4 (depends on the direction of the
connection) digital pins to exchange between peers without any host intervention.
7 ERROR CODES
7.1 Error Responses
All error responses from the device are in the form <cr,lf>ERROR nn<cr,lf>, where nn is a number in the
range 00 to 99 as follows:
Table 7-1: BTM Error Responses in AT Mode
Error
Description
01
Register not recognized
02
Value for register is out of range
03
Incoming call NOT pending
04
No call to connect to. This error code has meaning for ATO only
05
Syntax Error
06
Empty String
06
Device Class could not be stored
08
Invalid Device Class Code
09
Invalid Bluetooth Address
10
Could not set Service or Friendly name
11
PS Store Write
12
PS Store Read
13
Not Idle
14
Incorrect Mode
15
Already Scanning
16
Pairing is already in progress
17
NOT USED
18
NOT USED
19
NOT USED
20
Not safe to write to Non-volatile Store - Ongoing Bluetooth Connection
21
Link Key Cache is Empty
22
Link Key Database is Full
23
Malloc returned NULL - Resource Issue
24
Remote Address same as Local Address
25
Connection Setup Fail, DSR Not asserted
26
Unauthenticated licence
27
Max Responses (See S Register 518) too high. Memory allocation error
28
The length of Pin in AT+BTK is too long
29
Invalid Ring count specified for S Register 0 or 100. If S0<>0 and S100<>0 then S0
must be < S100
30
ADC Error
31
Analogue Value cannot be read as it is set for output
32
Analogue Value cannot be written as it is set for input
33
S Register Value is invalid