SPBT2532C2AT datasheet(44/48 Pages) STMICROELECTRONICS

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Other responses

SPBT2532C2.AT

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Doc ID 16089 Rev 3

Appendix E

Other responses

The following subsections describe the 4 types of responses that occur under specific

circumstances, not necessarily as a result of a specific command. They are:

●

Reset

●

Escape sequence

●

Controlled disconnect

●

Unexpected disconnect

E.1

Reset

Upon either hardware reset or software reset (such as the Reset command), abSerial will

respond as follows after the reset is complete:

AT-AB -CommandMode-

AT-AB BDAddress [BD addr]

Because the BD address of the local device is reported during this response, the response

is different than a response to the Escape Sequence.

E.2

Escape sequence

If the Escape sequence, ^#^$^%, is received and no connection is active, abSerial will

immediately respond with:

AT-AB -CommandMode-

When the Escape Sequence is received while a connection is still active and there is no

data for 2 seconds, abSerial will respond (after those 2 seconds of no data) with the same

string.

abSerial will now be in command mode.

E.3

Controlled disconnect

If the local host initiates a disconnect, it must first put the abSerial interface into command

mode (see the section on Escape Sequence directly above). After a successful disconnect

command, the following response is made:

AT-AB ConnectionDown

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