XIB-E【PDF 20/64 页】BOARD INTERFACE ETHERNET

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3.3. XStream Command Descriptions

Command descriptions in this section are listed alphabetically. Command categories are

designated within < > symbols that follow each command title. XStream Modules expect

parameter numerical values in hexadecimal (designated by the 0x prefix).

AM (Auto-set MY) Command

<Networking & Security> AM Command is used

to automatically set the MY (Source Address)

parameter from the factory-set module serial

number. The address is formed with bits 29, 28 and 13-0 of the serial number (in that order).

AT Command: ATAM

Binary Command: 0x3A (58 decimal)

Minimum firmware version required: 4.40

AT (Guard Time After) Command

AT Command: ATAT

Binary Command: 0x05 (5 decimal)

<Command Mode Options> AT Command is used

to set the DI time-of-silence that follows the AT

command sequence character (CC Command).

By default, AT Command Mode will activate after

one second of silence.

Parameter Range: 0x02 0xFFFF

[x 100 milliseconds]

Number of bytes returned: 2

Default Parameter Value: 0x0A (10 decimal)

Related Commands: BT (Guard Time Before),

CC (Command Sequence Character)

Refer to the AT Commands section [p16] to view

the default AT Command Mode Sequence.

BD (Interface Data Rate) Command

AT Command: ATBD

Binary Command: 0x15 (21 decimal)

<Serial Interfacing> BD Command allows the

user to adjust the UART interface data rate and

thus modify the rate at which serial data is sent

to the RF module. The new baud rate does not

take effect until the CN command is issued. The

RF data rate is unaffected by the BD parameter.

Parameter Range (Standard baud rates): 0 6

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Most applications will require one of the seven

standard baud rates; however, non-standard

baud rates are also supported.

Note: If the interface data rate is set to exceed

the fixed RF data rate of the module,

flow

control may need to be implemented as

described in the Pin Signals [p6], Flow Control

[p10] and CS (DO2 Configuration) sections.

Non-standard Interface Data Rates: When

parameter values outside the range of standard

interface data rates are sent, the closest rate represented by the number is stored in the BD

"ATBD4B00". NOTE: When using MaxStreams X-CTU Software, non-standard interface data rates

can only be set and read using the X-CTU Terminal tab.

(Non-standard baud rates): 0x7D 0xFFFF

Parameter

Configuration (bps)

1200

2400

4800

9600

19200

38400

57600

Number of bytes returned: 2

Default Parameter Value: Set to equal modules

factory-set RF data rate.

Related Commands: CN (Exit Command Mode)

Minimum firmware version required: 4.2B

(Custom baud rates not previously supported.)

When the BD command is sent with a non-standard interface data rate, the UART will adjust to

accommodate the requested interface rate. In most cases, the clock resolution will cause the

stored BD parameter to vary from the parameter that was sent (refer to the table below).

Reading the BD command (send "ATBD" command without an associated parameter value) will

return the value that was actually stored in the BD register.

Table?02. Parameter燬ent爒s.燩arameter燬tored?/DIV>

BD Parameter Sent (HEX)

Interface Data Rate (bps)

BD Parameter Stored (HEX)

1200

19,200

115,200

12C

300

12B

1C200

115,200

1B207

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