Technical 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
- 3.4. PCB Parts Placement
- 3.6. Frequency Reference Specifications
- 3.7. A431 Module’s Photographs
- 4. Software
5
INFO _________________________________________________________________________ 52
RX ___________________________________________________________________________ 53
TX ___________________________________________________________________________ 54
B ____________________________________________________________________________ 54
Returned errors list____________________________________________________________________ 54
Command line interpreter _______________________________________________________ 54
Device descriptors and storage handler ___________________________________________ 55
Real time clock ________________________________________________________________ 55
Radio interface ________________________________________________________________ 55
Notifications __________________________________________________________________ 55
Adcon Packet Radio Protocol _________________________________________________56
Digital Squelch _______________________________________________________________________ 56
Modulation Technique Used____________________________________________________________ 57
Generic Format of a Radio Frame _______________________________________________________ 57
Data Frames _________________________________________________________________________ 59
Frame Types _________________________________________________________________________ 59
Request ______________________________________________________________________ 59
Broadcast Answer ______________________________________________________________ 60
Broadcast Request _____________________________________________________________ 60
Ping __________________________________________________________________________ 61
Pong _________________________________________________________________________ 61
Fdev _________________________________________________________________________ 62
Data12 _______________________________________________________________________ 62
Set ID ________________________________________________________________________ 63
Set Slot Time and Sample Rate __________________________________________________ 64
Set Frequency _________________________________________________________________ 64
Set Battery Charge Levels _______________________________________________________ 65
General Acknowledge __________________________________________________________ 65