User's Manual

LRM Radio Module –
Host Interface Specification
LRM Configuration Concept
Document p/n: 9S02-7954-A001 Rev.A
Cattron-Theimeg Inc. Proprietary and Confidential Page 4-5
wr 0x80 18 : Write 18 to register address 0x80
wr txf 915000000 0x80 18: Concatenate the two writes above in a single instruction
4.3.2 “Read” command
rdCmd reg where:
rdCmd= read command. r or rd can be used and are equivalent
reg = register identification. Can use the register name or register address
Examples:
rd txf : Reads register txf (Tx frequency)
rd 0x80 : Reads register address 0x80
rd txf 0x80 : Reads registers txf and 0x80 in a single instruction
4.3.3 “Help” command
helpCmd where:
helpCmd= help command. h, help or ? can be used and are equivalent.
The LRM responds with the list off all available configuration registers.
4.4 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.
Figure 4.1 - LRM 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