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Error responses

UM1547

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4.3

ErrFormat

The ErrFormat error response will be sent if ATn FW receives a command (text terminated

by a carriage return or line feed) that does not match the expected format starting with

"AT+AB".

Examples of commands that produce this error response are given in the following table.

4.4

ErrInvalidParam

The ErrInvalidParam error response will be sent if the parameters for the requested

command are not correct. The parameter(s) will be echoed back to the user starting from

the parameter that was rejected.

Examples of commands that produce this error response are given in the following table.

4.5

ErrNumParam

The ErrNumParam error response will be sent if there are too few parameters for the

requested command. A command sent with too many parameters does not generate an

error; instead, the extra parameters are ignored.

Note:

Some commands will accept a variable number of parameters.

Examples of commands that produce this error response are given in the following table.

Table 5. Example commands that generate <ErrFormat>

Example

Reason

AT-AB discovery

A valid command name that does not start with the right prefix.

SPPConnect 00043e000000

A command that does not start with “AT+AB”.

abcdef

A command that does not start with “AT+AB”.

Table 6. Example commands that generate <ErrInvalidParam>

Example

Response

Reason

AT+AB SPPConnect 8136

AT-AB ErrInvalidParam

8136

Numeric parameter not specified with required number

of digits (BD address must always be 12 hex

characters).

AT+AB SPPConnect

00043e008136 GOEP

AT-AB ErrInvalidParam

goep

Unrecognized (or unsupported) symbolic parameter

used.

AT+AB ChangeBaud 1600

AT-AB ErrInvalidParam

1600

Numeric parameter is out of range (specified baud rate

is not supported by command).

AT+AB EnableBond

00043e000000

12345678901234567

AT-AB ErrInvalidParam

12345678901234567

String parameter (PIN) has too many characters.

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