Laird Controls North America Inc. 78970 ユーザーズマニュアル
ADL Radio Module Manual
ADL Configuration Concept
Document p/n: 9S02-7897-A001 Rev.A1
Laird Inc.
Proprietary and Confidential
Page 4-4
4.
ADL Configuration Concept
All LRM configuration and status parameters are accessible through addressable registers.
-
All parameters can be read in any of the following state: IDLE, RX, TX
-
All writable parameters can be written in the following state: IDLE only
In order to facilitate adaptation to different platforms, the ADL configuration registers can be accessed using anyone
of three methods: I2C, SPI or serial asynchronous with ASCII strings.
of three methods: I2C, SPI or serial asynchronous with ASCII strings.
The definition of the configuration registers is given in reference [3]. This section addresses the basic description of
all these three methods.
all these three methods.
4.1
Stand-Alone Test Mode
The LRM can be operated in stand-alone mode for production/service tests. In this case, only a 3.3VDC supply is
needed, and a RS232/TTL transceiver (like Cattron FLASHBOX) to connect to a PC serial port.
needed, and a RS232/TTL transceiver (like Cattron FLASHBOX) to connect to a PC serial port.
21
ADL, host interface
26
RXD
TXD
25
!CONFIG
3V3
GND
27
22
RS232 - TTL transceiver
(ex:Test Jig)
3.3VDC
RS232
PC, running automated test
program, or ANSI terminal
emulation software
*Note: The LRM !RX_EN, !TX_EN and !RESET all have internal pull-ups, so they can be left unconnected.
Figure 4.1 - ADL connection for stand-alone operation
The LRM will support several built-in test modes to ease testing from a PC. For example
a. Transmission Tests
- Generation of different type of carrier: unmodulated (CW), or modulated with “101010..” or pseudo-random
sequence
- Automatic generation of test RF frames with predefined content
b. Reception Tests
- Measure PER (packet error rate) when receiving the predefined test RF frames
- Measure RF input level
More details about the test modes can be found in reference [9P13-7949-A001].
a. Transmission Tests
- Generation of different type of carrier: unmodulated (CW), or modulated with “101010..” or pseudo-random
sequence
- Automatic generation of test RF frames with predefined content
b. Reception Tests
- Measure PER (packet error rate) when receiving the predefined test RF frames
- Measure RF input level
More details about the test modes can be found in reference [9P13-7949-A001].