HASI DPU Event description
--------------------------

DDBL EVENTS|       DESCRIPTION
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T0|                T0 transition according to the DDBL flag.
AUTORESET|         It indicates that the HASI Instrument has been switched ON
                   according to the automatic reset sequence.
DDBL Time Wrong|   It indicates that the DDB time is not monotone (two
                   consecutive DDB cuts have Mission time difference greater
                   than 2 s).
TIMPACT|           Time instant when HASI recognises the Probe Impact by ACC
                   Xservo data elaboration (filter).
DDBL nok line A|   When the DDB line layout test results unsuccessfully
                   completed on CDMU line A.
DDBL nok line B|   When the DDB line layout test results unsuccessfully
                   completed on CDMU line B.

TC EVENTS|         DESCRIPTION
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UNKNOWN TC |       When a TC is correctly received, but has an unknown Command
                   Header.
TC RX incorrect|   Telecommand received incorrectly

SENSORS EVENTS|    DESCRIPTION
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PWA LINK ERROR|    The PWA DB is checked against its protocol and the
                   following Event data are:
                      - Invalid Packet Id
                      - Invalid Sequence count
                      - Invalid Packet length
                      - Invalid Packet error control
                      - Invalid Data Field Header 
                      - Time-out.The Status Block is sent while the DB has a
                        number of bytes less than the expected. The TM packet
                        is filled with a pattern of 0x20H
MCA READOUT|       The message reports the Energize status, MCA1 and MCA2
                   activation status during Booms deployment.
PPI RANGE FAIL|    The message is issued when the Y-value calculation is out
                   of the expected range.
PPI Time-out|      The message is issued when a frequency measure of a PPI
                   channel is lower than 1khz.
ADC1 FAILURE|      When the ACCelerometer Analog to Digital Converter does not
                   provide the End Of Conversion.
ADC2 FAILURE|      When the TEM and HK Analog to Digital Converter does not
                   provide the End Of Conversion.
ACC range set COARSE|   The ACC Xservo range changes from FINE (HIGH gain) to
                        COARSE (LOW gain).

EEPROM EVENTS|     DESCRIPTION
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EEPROM LATCH-UP|   It is part of the nominal switch-ON/OFF sequence of the
                   EEPROM procedure. Nominally, it happens after the EEPROM
                   SWITCHED OFF message. In the case it happens before, a
                   hardware latch-up happened when using EEPROM and its
                   content and the next operations may result corrupted or
                   incomplete. A severe latch-up may destroy the device
                   itself.
EEPROM SWITCHED|   The message has two event data: 0 (OFF) and 1 (ON). Before
                   any read/write operation the EEPROM must be switched on
                   (EEPROM SWITCHED-ON) and then shall be switched OFF EEPROM
                   SWITCHED-OFF).
EEPROM LOCKED|     It refers to the EEPROM overwrite capability.