User`s guide

Chapter 5 - I/O Commands
1PPS CONTROL MESSAGE (@@Gc)
Motorola Binary Format
Query current 1PPS Mode:
@@GcxC<CR><LF>
where:
x = 1 hex byte: 0xFF
Checksum = 0x24
Message length: 8 bytes
Complete hex string to query current 1PPS Mode:
0x40 40 47 63 24 0D 0A
Change 1PPS Control Command:
@@GcpC<CR>LF>
where:
p = 1PPS control 0x00 = 1PPS disabled
0x01 = 1PPS on continuously
0x02 = 1PPS active only when
tracking at least one satellite
0x03 = 1PPS on when T-RAIM conditions are met
(timing receiver only)
C = checksum
Message Length: 8 bytes
Response to above command:
@@GcpC<CR>LF>
where:
p = 1PPS control 0x00 = 1PPS disabled
0x01 = 1PPS on continuously
0x02 = pulse active only when
tracking at least one satellite
0x03 = 1PPS on when T-RAIM conditions are met
(timing receiver only)
C = checksum
Message Length: 8 bytes
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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