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Update PROTOCOL.md

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Update regarding byte 14 of DATA1 entry, and some additional clarifications.
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Antti Huhtala
2022-03-27 17:49:16 +03:00
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parent f7a472d960
commit a17151e388
1 changed files with 8 additions and 4 deletions
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PROTOCOL.md
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@@ -265,16 +265,20 @@ Date format:
| 11 | Number of TODOs |
| 12 | Number of phone numbers |
| 13 | Number of anniversaries |
| 14 | Unknown, see below |
| 14 | Year of the first appointment entry|
| 15 | Early alarm, in 5 minute intervals |
Sequence ID is incremented for each DATA1 packet sent.
Indices are counted zero inexed from first address byte (2). This means
the first data is always located at index 0x0e.
the first data is always located at index 0x0e. Indexes are given in
MSB first, LSB second.
The unknown byte was documented as 0x60, but I seem to get 0x14 when
sending appointments and 0x00 otherwise. Requires some investigating.
Byte 14 is the year of the first occurring appointment entry. The watch
probably uses this for computing the day of the week an appointment
occurs on. The watch most likely implicitly assumes that the
appointments do not span more than a year into the future, and possibly
that the entries are uploaded in chronological order.
Byte 15 indicates how long before appointments, in 5 minute intervals,
the alarm will sound. Set to 0xFF for no alarm