AUREL 650201515G, Руководство пользователя

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RTX-24EM-HP
User guide
The technical characteristics can change without notice. AUR°EL S.p.A doesn’t assume the responsibility to the damages caused by an improper use of the device.
AUR°EL S.p.A. Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY 12/11/2019 - Rev. A
Tel.: +390546941124 – Fax: +390546941660 Page 37
http://www.aurel.it
13 RF Packet format
In normal sensitivity mode, each packet contains the following information:
Preamble 3 * Address Byte Header Payload
Packet information Length Description
Preamble =
5 * '11001100'
5 byte Clock recovery and data-slicer initialization.
3 * Address Byte 3 byte This field consists of 3 Address byte Address[7:0].
Header
0 or 1
byte
The 5 LSB's of the header represent the payload size of the packet for
"payload size defined in header" mode (ROM_Boot_Address = 320).
For "payload size defined in RAM2" mode (ROM_Boot_Address = 192)
the header is not existing.
Payload
0 -32
bytes
Data
In high sensitivity mode, each packet contains the following information:
Marking Preamble 3 * Address Byte Header Payload
Packet information Length Description
Marking 14ms Initial frequency step used to lock high sensitivity demodulator.
Preamble =
2 * '11001100'
2 byte Clock recovery initialization.
3 * Address Byte 3 byte This field consists of 3 Address byte Address[7:0].
Header
0 or 1
byte
The 5 LSB's of the header represent the payload size of the packet for
"payload size defined in header" mode (ROM_Boot_Address = 256).
For "payload size defined in RAM2" mode (ROM_Boot_Address = 128)
the header is not existing.
Payload
0 -32
bytes
Data