User`s guide

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9700.0031 © Zephyr Technology 2010 2010-07-22
7. Standard HxM Data Message
7.1. MSG:0x26 – Heart Rate, Speed & Distance packet
This message contains the heart rate data, including the last 15 RR timestamps, and speed & distance data. The
packet is transmitted periodically at 1Hz.
Byte/Bit
7
6
5
4
3
2
1
0
Field
0
STX STX
1
0x26 Msg ID
2
55 DLC
3
Firmware ID
Payload
5
Firmware Version
7
Hardware ID
9
Hardware Version
11
Battery Charge Indicator
12
Heart Rate
13
Heart Beat Number
14
Heart Beat Timestamp #1 (Newest)
16
Heart Beat Timestamp #2
18
Heart Beat Timestamp #3
20
Heart Beat Timestamp #4
22
Heart Beat Timestamp #5
24
Heart Beat Timestamp #6
26
Heart Beat Timestamp #7
28
Heart Beat Timestamp #8
30
Heart Beat Timestamp #9
32
Heart Beat Timestamp #10
34
Heart Beat Timestamp #11
36
Heart Beat Timestamp #12
38
Heart Beat Timestamp #13
40
Heart Beat Timestamp #14
42
Heart Beat Timestamp #15 (Oldest)
44
Reserved
46
Reserved
48
Reserved
50
Distance
52
Instantaneous speed
54
Strides
55
Reserved
56
Reserved
58
CRC CRC
59
ETX ETX
Table 7.1 Message: Heart Rate, Speed & Distance Packet