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
65
Frame Types
Set Battery Charge Levels
ID 43
FORMAT struct {
unsigned char chargeStart;
unsigned char chargeStop;
} setBattCharge;
DESCRIPTION
This frame requests that a remote change the battery charge management param-
eters. The device will answer with a General acknowledge frame. An A733 will never
issue this frame type, but it will answer to it.
• chargeStart is the value where the external power (normally a solar panel) will
be enabled to charge the battery.
• chargeStop is the value where the external power will be switched off.
From the above two values, the system will compute all other limits (e.g. misery, bat-
tery low, etc.).
SEE ALSO General Acknowledge frame.
General Acknowledge
ID 127
FORMAT struct {
int result;
} generalAck;
DESCRIPTION
This frame is sent as an acknowledge to various
Set
type of frames. The result field
is NULL if the request was successfully performed; in case of failure, this field may
contain information about the cause of the failure. Its value will depend on the type
of the request.