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