Memsic DMU380SA Series, User Manual

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DMU380SA Series
User’s Manual
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Doc# 7430-0026 Rev.01 Page 75
softwareAlgorithmBIT Field
9.10
The softwareAlgorithmBIT field contains flags that indicate low level software algorithm
errors (See Table 37). The algorithmError flag in the softwareBIT field is the bit-wise OR
of this softwareAlgorithmBIT field.
Table 37. DMU380 Software Algorithm BIT Field
SoftwareAlgorithmBIT Field Bits Meaning Category
initialization 0 0 = normal, 1 = error during algorithm initialization Hard
overRange 1 0 = normal, 1 = fatal sensor over-range Hard
missedNavigationStep 2 0 = normal, 1 = fatal hard deadline missed for
navigation Hard
Reserved 3:15 N/A
softwareDataBIT Field 9.11
The softwareDataBIT field contains flags that indicate low level software data errors (See
Table 38). The dataError flag in the softwareBIT field is the bit-wise OR of this
softwareDataBIT field.
Table 38. DMU380 Software Data BIT Field
SoftwareDataBIT Field Bits Meaning Category
calibrationCRCError 0 0 = normal, 1 = incorrect CRC on
calibration EEPROM data or data has been
compromised by a WE command. Hard
magAlignOutOfBounds N/A
Parameter not implemented in this
software version
N/A
Reserved 2:15 N/A
hardwareStatus Field 9.12
The hardwareStatus field contains flags that indicate various internal hardware conditions
and alerts that are not errors or problems (See Table 39). The hardwareStatus flag in the
BITstatus field is the bit-wise OR of the logical AND of the hardwareStatus field and the
hardwareStatusEnable field. The hardwareStatusEnable field is a bit mask that allows the
user to select items of interest that will logically flow up to the masterStatus flag.
Table 39. DMU380 Hardware Status BIT Field
hardwareStatus Field Bits Meaning
unlocked1PPS 0 0 = not asserted, 1 = asserted
unlockedInternalGPS 1 0 = not asserted, 1 = asserted
noDGPS 2 0 = DGPS lock, 1 = no DGPS
unlockedEEPROM 3 0=locked, WE disabled, 1=unlocked, WE enabled
Reserved 4:15 N/A
comStatus Field 9.13
The comStatus field contains flags that indicate various external communication
conditions and alerts that are not errors or problems (See Table 40). The comStatus flag
in the BITstatus field is the bit-wise OR of the logical AND of the comStatus field and
the comStatusEnable field. The comStatusEnable field is a bit mask that allows the user
to select items of interest that will logically flow up to the masterStatus flag.