Cypress CYALKIT-E02, Reference Design Kit Manual

Page: 68 / 90

Reference Design
CYALKIT-E02 Solar-Powered BLE Sensor Beacon Reference Design Kit Guide, Doc. No. 002-11317 Rev. *C 68
5.4 Eddystone Format
The Eddystone specification defines three types of frames. The two AD structures in the front are the same.
The following diagram shows the Eddystone packet format using the same format used in
https://github.com/google/eddystone/blob/master/protocol-specification.md
The following are the initial values in the example project for "Solar-Powered BLE Beacon Operation".
<Flags>
□
Length1 0x02
□
AD type1 0x01
□
AD data 0x04
<Service UUID>
□
Length2 0x03
AdvData
Advertising Data
[31]
[ ] means
“
Byte
”
Service UUID
[4]
Eddystone-UID
[24]
Flags
[3]
Len
gth2
[1]
AD
type
2
[1]
Len
gth1
[1]
AD
type
1
[1]
AD
data
[1]
Eddystone
UUID
[2]
Len
gth3
[1]
AD
type
3
[1]
BID
[6]
RFU
[2]
Eddystone
UUID
[2]
Fra
me
type
[1]
Ran
ging
data
[1]
NID
[10]
AdvData
Advertising Data
[14 - 31]
[ ] means
“
Byte
”
Service UUID
[4]
Eddystone-URL
[7 - 24]
Flags
[3]
Len
gth2
[1]
AD
type
2
[1]
Len
gth1
[1]
AD
type
1
[1]
AD
data
[1]
Eddystone
UUID
[2]
Len
gth3
[1]
AD
type
3
[1]
Eddystone
UUID
[2]
Fra
me
type
[1]
Ran
ging
data
[1]
URL
[1 - 18]
AdvData
Advertising Data
[25]
[ ] means
“
Byte
”
Service UUID
[4]
Eddystone-TLM
[18]
Flags
[3]
Len
gth2
[1]
AD
type
2
[1]
Len
gth1
[1]
AD
type
1
[1]
AD
data
[1]
Eddystone
UUID
[2]
Len
gth3
[1]
AD
type
3
[1]
Eddystone
UUID
[2]
Fra
me
type
[1]
Ver
sion
[1]
SEC_CNT
[4]
VBATT
[2]
TEMP
[2]
ADV_CNT
[4]