Motorola M12 Oncore User Manual page 90

Motorola GPS Products
M12 Oncore User' s Guide Supplement
Revision 1.0 01/25/00
SELF-TEST MESSAGE (12 CHANNEL)
The GPS receiver user has the ability to perform an extensive self-test. The tests that
are accomplished during the commanded self-test are as follows:
• Antenna connection
• RTC communication and time
• Temperature sensor
• RAM
• FLASH ROM
• Correlator IC
The output of the self-test command is a 24-bit field, where each bit of the field
represents Pass/Fail condition for each parameter tested. When the self-test is
initiated, the next output message may not be the response. The self-test may take
up to ten seconds to execute. Once the self-test is complete, the acquisition process
starts all over as if the receiver were first powered on. The date, time, position,
almanac and ephemeris information is all retained.
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