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Table Of Contents
- Disclaimer
- 1 Product overview
- 2 Specification and parameters
- 3 Size and pins definition
- 4 Recommended circuit diagram
- 5 Hardware design
- 6 E108-Product test
- 7 Command format
- 7.1 GKC interface data format
- 7.2 GKC command
- 7.2. Response message
- 7.2.2 System reboot
- 7.2.3 Erase auxiliary information
- 7.2.4 Low power mode
- 7.2.5 Message interval configuration
- 7.2.6 Periodic low power mode
- 7.2.7 Set star search mode
- 7.2.8 Save star search mode
- 7.2.9 Serial port parameter setting
- 7.2.10 Set NMEA output
- 7.2.11 GPD document delete
- 7.2.12 Set NMEA serial port parameter
- 7.2.13 PPS configuration
- 7.2.14 Query message interval
- 7.2.15 Return message interval
- 7.2.16 Set NMEA output frequency
- 7.2.17 Query NMEA output frequency
- 7.2.18 Return the NMEA output frequency
- 7.2.19 Set reference coordinates
- 7.2.20 Query Reference Coordinate System
- 7.2.21 Return Reference Coordinate System
- 7.2.22 Query RTC time
- 7.2.23 Return RTC time
- 7.2.24 Set the speed threshold
- 7.2.25 Set HDOP Threshold
- 7.2.26 Get HDOP Threshold
- 7.2.27 Version number query
- 7.2.28 Return the current version number
- 7.2.29 Set location and time information
- 7.2.30 Set positioning mode
- 7.2.31 Query ID information
- 7.2.32 Return ID information
- 7.3 Support NMEA0183 protocol
- 8 GDP User Guidance
- 9 FAQ
- 10 Welding instruction
- 11 E108 Series
- 12 Packing for batch order
- Revision history
- About us
Chengdu Ebyte Electronic Technology Co.,Ltd. E108-GN User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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8.7.2 Send GPD first data block, wait for ACK response
Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD packet number (2B) + data payload (512B) + CheckSum
(1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x02, 0x066, 0x02, 0x00, 0x00, ..., (chk), 0x0d, 0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD packet number (2B) + valid flag (1B) + CheckSum (1B) +
packet tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, (chk), 0x0d, 0x0a
8.7.3 Send the remaining data blocks in sequence and wait for the ACK
response
Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD packet number (2B) + data payload (512B) + CheckSum
(1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x02, 0x066, 0x02, 0x01, 0x00, ……., (chk), 0x0d, 0a
(The GPD file is divided into 512-byte data blocks for transmission, and the last block less than 512 bytes is filled with 0s)
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD packet number (2B) + valid flag (1B) + CheckSum (1B) +
packet tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0x01, 0x00, 0x01, (chk), 0x0d, 0x0a
8.7.4 Send GPD transfer end statement and wait for response
Send: packet header (2B) + packet length (2B) + transmission type (2B) + GPD terminator (2B) + CheckSum (1B) + packet tail (2B)
Data: 0xaa, 0xf0, 0x0b, 0x00, 0x066, 0x02, 0xff, 0xff, (chk), 0x0d, 0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + GPD terminator (2B) + valid flag (1B) + CheckSum (1B) + packet
tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x03, 0x00, 0xff, 0xff, 0x01, (chk), 0x0d, 0x0a
8.7.5 Switch BINARY reception to NMEA reception mode
Send: Packet header (2B) + Packet length (2B) + Message type (2B) + Transmission type (1B) + Baud rate (4B) + CheckSum (1B) +
Packet tail (2B)
Data: 0xaa, 0xf0, 0x0e, 0x00, 0x95, 0x00, 0x00, 0x00, 0xc2, 0x01, 0x00, (chk), 0x0d, 0x0a
Receive: packet header (2B) + packet length (2B) + ACK type (2B) + message type (2B) + valid flag (1B) + CheckSum (1B) + packet
tail (2B)
Data: 0xaa, 0xf0, 0x0c, 0x00, 0x01, 0x00, 0x95, 0x00, 0x03, (chk), 0x0d, 0x0a
(Status flags: 0 for invalid, 1 for unsupported, 2 for failure, 3 for success)