User's Manual
Table Of Contents
- 1. Introduction
- 2. Hardware
- 3. The A431 Radio Module
- 3.1. About the A431 Radio Module
- 3.2. Functional description
- 3.3. Manufacturing Issues
- 3.3.1. Marking and labeling issues
- 3.3.2. Alignment Range and Switching Range
- 3.3.3. Tuning Procedure
- 3.3.4. Setting Up the Default Parameters
- 3.3.5. Definitions
- 3.3.6. Test Equipment Settings
- 3.3.7. Trimming Elements
- 3.3.8. Adjusting the Receiver Front End
- 3.3.9. Adjusting the VCOs
- 3.3.10. Adjusting the Crystal Reference
- 3.3.11. Checking the Receiver Parameters
- 3.3.12. Checking the Transmitter Parameters
- 3.3.13. Data Transfer Check
- 3.6. Frequency Reference Specifications
- 3.7. A431 Module’s Photographs
- 4. Software
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Software
PARAMETERS None (sends an unmodulated carrier), 1 (sends a 1 kHz modulated carrier), 0 (sends
a 2 kHz modulated carrier) or 5 (sends a mixed 1 + 2 kHz modulated carrier).
RETURNS Nothing.
REMARKS The system stops, and exits the command only when a key is pressed. This com-
mand returns no message.
REMOTE No.
EXAMPLE
TX
193 TX 0
#
TX 1
193 TX 0
#
TX 5
193 TX 0
#
B
DESCRIPTION Sends a broadcast frame.
PARAMETERS None.
RETURNS A data block.
REMARKS After the device sends the broadcast frame, it will listen for answers. All valid an-
swers will be listed with their IDs.
REMOTE No.
EXAMPLE
B
193 B 0
#234 BA 0
#7851 BA 0
4.3.5. Returned errors list
Following are error messages you might get.
Command line interpreter
• 1 — nonexistent command
• 2 — command line buffer overflow (input line too long)
• 3 — internal error
• 4 — reserved
• 5 — missing or false parameters in command