B&B Electronics ZP9D-115RM-LR - Manual User Manual
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Manual Documentation Number: ZP9D-115RM-LR-0812
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
Non-standard Interface Data Rates:
Any value above 0x38 will be interpreted as an actual baud rate. When a value above
0x38 is sent, the closest interface data rate represented by the number is stored in
the BD register. For example, a rate of 19200 bps can be set by sending the following
command line "ATBD4B00".
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 actually stored in the
module‟s BD register.
Parameters Sent Versus Parameters Stored
BD Parameter Sent
(HEX)
Interface Data Rate (bps)
BD Parameter Stored (HEX)
0
1200
0
4
19,200
4
7
115,200
7
12C
300
12B
1C200
115,200
1B207
BR (RF Data Rate) Command
command is used to set and
read the RF data rate (rate that
RF data is transmitted over-the-
air) of the module.
BT (Guard Time Before)
Command
The CC command is used to
set/read the ASCII character
used between guard times of
the AT Command Mode
Sequence (BT + CC + AT).
This sequence enters the
module into AT Command
Mode so that data entering the
module (from the host) is recognized as commands instead of payload.
AT Command: ATBR
Binary Command: 0x39 (57 decimal)
Parameter Range: 0 - 1
Parameter
Baud (bps)
Configuration
0
9600
1
115200
Default Parameter Value:1
Number of bytes returned: 1
AT Command: ATCC
Binary Command: 0x13 (19 decimal)
Parameter Range: 0x20 - 0x7F
Default Parameter Value: 0x2B (ASCII “+”)
Number of bytes returned: 1
Related Commands: AT (Guard Time After), BT
(Guard Time Before)