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
52
Software
#
IMME
DESCRIPTION Samples all inputs and immediately returns the sampled data.
PARAMETER The ID of the requested subsystem, default is the standard A/D subsystem of the
A733 (ID=0).
Note: Currently only the default subsystem is implemented on the A733.
RETURNS A data block.
REMARKS GET only. The command needs a certain delay to execute, e.g. for the standard sub-
system this delay amounts to two seconds. The delay is necessary to allow for the
sensors to settle after applying power to them.
REMOTE No.
EXAMPLE IMME
9999 IMME
13 9 1999 19 26 36 21 37 255 255 79 0 0 0 0 87 148 149 15 0 0 0 0 0 0 0 0 0 3148 0
#
INFO
DESCRIPTION Returns various status information.
PARAMETERS None.
RETURNS A list of a device’s internal variables:
ID INFO rf_in rf_out date time ver clk stack cop batt temp days_uptime
hr:min_uptime rssi pmp_low pmp_high type slot samples err_level
#
The formats for the above parameters are as follows:
• rf_in and rf_out as a decimal (unsigned char)
• date as dd/mm/yyyy
• time as hh:mm:ss
• ver as x.x
• clk, stack, and cop as decimal (unsigned char); they represent internal
housekeeping parameters: the A733 uses cop to number watchdog occur-
rences, but clk and stack are currently undefined
• batt as battery level using the standard voltage conversion equation (0 is 0
volts, 255 is 20 volts)
• temp as internal temperature in the A733 housing, which is device depen-
dent. The precision of the sensing element is low (±2°C), but it is sufficient for