Memsic DMU380SA Series, Руководство пользователя

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DMU380SA Series
User’s Manual
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Doc# 7430-0026 Rev. 01 Page 76
Table 40. DMU380 COM Status BIT Field
comStatus Field Bits Meaning
noExternalGPS 0
0 = external GPS data is being received, 1 = no external
GPS data is available
Reserved 1:15 N/A
softwareStatus Field 9.14
The softwareStatus field contains flags that indicate various software conditions and
alerts that are not errors or problems (See Table 41). The softwareStatus flag in the
BITstatus field is the bit-wise OR of the logical AND of the softwareStatus field and the
softwareStatusEnable field. The softwareStatusEnable field is a bit mask that allows the
user to select items of interest that will logically flow up to the masterStatus flag.
Table 41. DMU380 Software Status Field
softwareStatus Field Bits Meaning
algorithmInit 0 0 = normal, 1 = the algorithm is in initialization mode
highGain 1 0 = low gain mode, 1 high gain mode
attitudeOnlyAlgorithm 2 0 = navigation state tracking, 1 = attitude only state tracking
turnSwitch 3 0 = off, 1 = yaw rate greater than turnSwitch threshold
Reserved 4:15 N/A
sensorStatus Field 9.15
The sensorStatus field contains flags that indicate various internal sensor conditions and
alerts that are not errors or problems (See Table 42). The sensorStatus flag in the
BITstatus field is the bit-wise OR of the logical AND of the sensorStatus field and the
sensorStatusEnable field. The sensorStatusEnable field is a bit mask that allows the user
to select items of interest that will logically flow up to the masterStatus flag.
Table 42. DMU380 Sensor Status Field
sensorStatus Field Bits Meaning
overRange 0 0 = not asserted, 1 = asserted
Reserved 1:15 N/A
Configuring the Master Status 9.16
The masterStatus byte and its associated programmable alerts are configured using the
Read Field and Write Field command as described in Section 8, Advanced Commands.
Table 43 shows the definition of the bit mask for configuring the status signals.
Table 43. DMU380 Master Status Byte Configuration Fields
configuration fields field ID Valid Values Description
hardwareStatusEnable 0x0010 Any Bit mask of enabled hardware status signals
comStatusEnable
0x0011 Any
Bit mask of enabled communication status
signals
softwareStatusEnable
0x0012 Any Bit mask of enabled software status signals
sensorStatusEnable
0x0013 Any Bit mask of enabled sensor status signals
9.16.1 hardwareStatusEnable Field
This field is a bit mask of the hardwareStatus field (see BIT and status definitions). This
field allows the user to determine which low level hardwareStatus field signals will flag
the hardwareStatus and masterStatus flags in the BITstatus field. Any asserted bits in this