Laird AC4490, User Manual

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AC4490 User Guide
Version 4.5
Laird Connectivity Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/ramp
22
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
API Send Data Complete is enabled when bit-2 of the Enhanced API Control byte (EEPROM byte 0xC6) is
enabled. The transceiver sends the OEM host the following data upon receiving an RF acknowledge or
exhausting all attempts:
0x82 Laird Use RSSI*
0x00: Failure
0x01: Success

RSSI* is how strong the local transceiver heard the remote transceiver.

Successful RF Acknowledge updates the Success/Failure bit.

A success is always displayed when sending broadcast packets (after all broadcast attempts have been
exhausted).
EEPROM P
ARAMETERS
The OEM Host can program various parameters that are stored in EEPROM which become active after a
power-on reset.
Table 5 gives the locations and descriptions of the parameters that the OEM Host can read or
write. Factory default values are also shown.
WARNING: Do not write to any EEPROM addresses other than those listed below. Do not copy one
transceiver’s EEPROM to another transceiver as doing so may cause the transceiver to malfunction.
Only the Configuration Utility should be used to copy one configuration into another transceiver.
Table 5: EEPROM Parameters
Parameter EEPROM
Address Length
(Bytes) Range Default Description
Product ID 0x00 40 Product identifier string. Includes revision
information for software and hardware.
Page Refresh 0x3D 1 0x01 -
0xFF 0x18 Specifies the maximum amount of time a
transceiver will report In-Range without
having heard a server’s beacon (equal to
hop period * value).
Note: Do not set to 0x00.
Stop Bit Delay 0x3F 1 0x00 -
0xFF 0xFF For systems employing Parity, the serial stop
bit might come too early. Stop Bit Delay
controls the width of the last bit before the
stop bit occurs.
0xFF = Disable Stop Bit Delay (12 µs)
0x00 = (256 * 1.6 µs) + 12 µs
0x01 - 0xFE = (value * 1.6 µs) + 12 µs
Channel
Number 0x40 1 0x00 -
0x37 1x1: 0x00
200: 0x00
1000: 0x10 Set 0 = 0x00 - 0x0F (US/Canada): 1x1/200
Set 1 = 0x10 - 0x2F (US/Canada): 1x1/1000
Set 2 = 0x30 - 0x37 Australia:
1x1/200/1000
Server/Client
Mode 0x41 1 0x01 -
0x02 0x02 0x01 = Server
0x02 = Client
Baud Rate
Low 0x42 1 0x00 -
0xFF 0xFC Low byte of the interface baud rate. Default
baud rate is 57600.