...........continued
Placeholder
Content
Q
Character
Meaning
HEX
ASCII
20
" " (space)
Clock in sync,
timing accuracy
is better then 60
ns
2E
"." (full stop)
Clock is accurate
to 1 µs
2A
"*" (asterisk)
Clock is accurate
to 10 µs
23
"#" (hash)
Clock is accurate
to 100 µs
3F
"?" (question)
Clock accuracy
may be worse
than 100 µs
<CR>
Carriage return (HEX 0D)
<LF>
Line feed (HEX 0A)
Example:
<SOH>112:12:34:36?<CR><LF>
Day 112, time 12:34:36, >100 µs sync error
String-E Time Code
This provides the time, year information, and a sync indicator field.
The string is transmitted once every second, with the leading edge of the "start" bit of the first character <SOH>
exactly on the second to which the message data refers.
Default settings: 9600bps, 8-bit ASCII, no parity.
Definition:
<SOH>YYYY:ddd:hh:mm:ssQ<CR><LF>
Table 12-11. String-E Content Specification
Placeholder
Content
<SOH>
Start of heading (HEX 01)
YYYY
4-digit year
:
HEX 3A (colon)
ddd
Day of year: range "001"-"366" ASCII
hh
Hour: "00"-"23" ASCII
mm
Minute: "00"-"59" ASCII
ss
Second: "00"-"59" ASCII
Appendix A: Specifications
©
2022 Microchip Technology Inc.
and its subsidiaries
Manual
DS00004572A-page 244
