Ascension laserBIRD, Инструкция по установке и эксплуатации

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4: Software Operation: Tools for Successful Tracking
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Error Reporting
The laserBIRD is designed to continuously monitor system activities, and to report particular
conditions to the user through error codes. These codes may be generated as a result of the power-
up diagnostics, or from regular error detection during normal operation. All error codes are 1 byte
in length, and are reported to the SYSTEM ERROR buffer. This buffer holds up to 16 bytes of
error information (16 codes).
NOTE: Users may also choose to enable the RUN TIME STATUS byte for notification of
specific conditions. See the DISABLE/ENABLE RUN TIME STATUS
PARAMETERnumber=128 for details.
Notification
The user can choose to be notified that an error has been generated through any of the following
methods:
Error Flag Monitor the ERROR bit (B13) in the two byte BIRD STATUS register.
1. Send EXAMINE VALUE command with
PARAMETERnumber = 0
When an error is detected this bit is set to a '1', and the generated error
code is sent to the SYSTEM ERROR buffer.
To retrieve the code after the flag has been set:
2. Send the EXAMINE VALUE command with
PARAMETERnumber = 10
This returns the earliest Error sent to the buffer and clears it.
Note: If there is only one error in the buffer, reading the ERROR bit
(B13) in the BIRD STATUS word, will reset the bit to '0' indicating all
errors have been read and cleared from the buffer. If the bit remains a '1',
then additional errors remain and should be read.
SYSTEM ERROR Alternatively, the user can query the SYSTEM ERROR buffer directly.
1. Send the EXAMINE VALUE command with
PARAMETERnumber = 10
This returns the earliest Error sent to the buffer. and clears it.