Quectel LC29D EVB User manual

LC29D EVB User Guide
GNSS Module Series
Rev. LC29D_EVB_User_Guide_V1.0
Date: 2020-07-02
Status: Released
www.quectel.com

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Tel: [phone]
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Copyright © Quectel Wireless Solutions Co., Ltd. 2020. All rights reserved.

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About the Document
History
Revision
Date
Author
Description
1.0
2020-07-02
Brooke WANG
Initial

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Contents
About the Document.................................................................................................................................. 1
Contents...................................................................................................................................................... 2
Table Index.................................................................................................................................................. 3
Figure Index................................................................................................................................................ 4
1Introduction......................................................................................................................................... 5
1.1. Safety Information...................................................................................................................... 5
2General Overview................................................................................................................................ 6
2.1. Top View of the EVB .................................................................................................................. 6
3Connector Applications ..................................................................................................................... 8
3.1. Tape-B USB Connector.............................................................................................................. 8
3.2. Antenna Connector .................................................................................................................... 9
3.3. SD Card Connector.................................................................................................................... 9
3.4. (U)SIM Card Connector ........................................................................................................... 10
3.5. Switches and Buttons .............................................................................................................. 10
3.6. Odo Connector......................................................................................................................... 12
3.7. Operation Status Indication LEDs............................................................................................ 13
3.8. Test Points................................................................................................................................ 14
4Firmware Download.......................................................................................................................... 15
4.1. Firmware Download in Normal Working Mode........................................................................ 15
4.2. Firmware Download in Host Mode........................................................................................... 15
5Instructions for the use of RTK....................................................................................................... 17
5.1. RTK account configuration....................................................................................................... 17
5.2. Steps to use RTK ..................................................................................................................... 18
6Module Calibration............................................................................................................................ 19
6.1. EVB placement ........................................................................................................................ 19
6.2. Calibration procedure............................................................................................................... 20
7Appendix A References.................................................................................................................... 21

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Table Index
TABLE 1: INTERFACES OF LC29D EVB ........................................................................................................... 6
TABLE 2: SWITCHES AND BUTTONS..............................................................................................................11
TABLE 3: PIN DESCRIPTION OF J104 ............................................................................................................ 12
TABLE 4: OPERATION STATUS INDICATION LEDS....................................................................................... 13
TABLE 5: PIN DESCRIPTION OF J302 ............................................................................................................ 14
TABLE 6: ARGUMENTS.................................................................................................................................... 17
TABLE 7: RELATED DOCUMENTS .................................................................................................................. 21
TABLE 8: TERMS AND ABBREVIATIONS ........................................................................................................ 21

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Figure Index
FIGURE 1: TOP VIEW OF LC29D EVB .............................................................................................................. 6
FIGURE 2: TYPE-B USB CONNECTOR ............................................................................................................ 8
FIGURE 3: ANTENNA CONNECTOR ................................................................................................................. 9
FIGURE 4: SD CARD CONNECTOR.................................................................................................................. 9
FIGURE 5: (U)SIM CONNECTOR .................................................................................................................... 10
FIGURE 6: SWITCHES AND BUTTONS ...........................................................................................................11
FIGURE 7: J104 TEST POINTS........................................................................................................................ 12
FIGURE 8: OPERATION STATUS INDICATION LEDS .................................................................................... 13
FIGURE 9: J302 TEST POINTS........................................................................................................................ 14
FIGURE 10: QGNSS CONFIGURATIONS........................................................................................................ 15
FIGURE 11: QGNSS CONFIGURATIONS ........................................................................................................ 16
FIGURE 12: EVB PLACEMENT DIRECTION ................................................................................................... 19

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1Introduction
This document specifies the usage of LC29D EVB which is an assistant tool for engineers to develop and
test Quectel LC29D module.
1.1. Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service
or repair of any terminal incorporating Quectel LC29D module. Manufacturers of the terminal should notify
users and operating personnel of the following safety information by incorporating these guidelines into all
manuals supplied with the product. If not so, Quectel assumes no liability for customers’ failure to comply
with these precautions.
Ensure that the use of the product meets the national safety and environmental
regulations, and is allowed in the country and in the environment required.
Keep away from explosive and flammable materials. The use of electronic products
in extreme power supply conditions and locations with potentially explosive
atmospheres may cause fire and explosion hazards.
The product has to be powered by a stabilized voltage source, and the wiring shall
conform to security and fire prevention regulations.
Proper ESD handling procedures must be applied throughout the mounting,
handling and operation of any application that incorporates the module to avoid
ESD damages.

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2General Overview
2.1. Top View of the EVB
The following figure illustrates the top view of LC29D EVB.
A
BCDEFGH
J K
I
L M N O P Q
R
Figure 1: Top View of LC29D EVB
Table 1: Interfaces of LC29D EVB
SN.
Part No.
Description

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A
U301
LC29D module
B
J301
LC29D module antenna connector
C
S301
LC29D BOOT button
D
J501
ODO connector
E
J404
USIM card connector
F
J202
SD card connector
G
S401
EG25 RESET button
H
J403
EG25 module antenna connector
I
U401
EG25 module
J
J101
Power supply and EG25 USB interface
K
D403
EG25 status and network indication LED
L
D104
Power indication LED
M
S101
Power switch (ON←→OFF)
N
J201
Power supply
Enhanced COM Port : LC29D module
Standard COM Port : EG25 module
O
S203
DL: LC29D module
RTK: EG25 module
P
S201
Standby mode control
Q
D301
1PPS and TXD1 Indication LED
R
J302
Test points

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3Connector Applications
3.1. Tape-B USB Connector
Both Type-B USB connectors can supply power for the EVB. The power supply current of EVB cannot be
lower than 2A.
EG25 USB AT Port is mainly used for the account configuration of RTK.
Enhanced COM Port is mainly used to configure LC29D module and firmware upgrade.
Standard COM Port is mainly used for LC29D module NMEA output.
EG25 USB Connector USB TO UART Connector
Figure 2: Type-B USB Connector
Before using the EVB, please install the USB driver.
NOTE

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3.2. Antenna Connector
LC29D antenna connector connect a passive or active GNSS antenna.
EG25 antenna connector connect a 4G antenna.
LC29D Antenna
Connector
EG25 Antenna
Connector
Figure 3: Antenna Connector
3.3. SD Card Connector
The data received by the SD card and Standard COM Port are the same.
SD Card
Connector
Figure 4: SD card Connector

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3.4. (U)SIM Card Connector
If the (U)SIM card is not inserted and the LC29D RTK account is not configured, the SD card and Standard
COM Port cannot receive data.
(U)SIM Card
Connector
Figure 5: (U)SIM Connector
3.5. Switches and Buttons
The following figure illustrates the switches and buttons of the EVB.

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S401
S101
S301
S203 S201
Figure 6: Switches and Buttons
Table 2: Switches and Buttons
Part No.
Name
Description
S101
POWER
EVB power switch. (ON←→OFF)
S203
DL/RTK
DL: LC29D UART1 is connected to Enhanced COM Port and will be
used when configure LC29D module and firmware upgrade.
RTK: LC29D UART1 is connected to EG25 and will be used when
LC29D module gets RTCM data.
S201
NSTANDBY
Long press (press and hold) the NSTANDBY button to enter standby
mode, and release the button to exit from standby mode.
Short press (press and then release) the NSTANDBY button to reset the
module.
S301
BOOT
Press and hold the BOOT button during EVB power-on to make the
module enter host mode.
S401
EG25_RESET
Reset EG25 module.

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3.6. Odo Connector
1 2 3 4
5 6 7 8
Figure 7: J104 test points
Table 3: Pin Description of J104
SN.
Signal
I/O
Description
1~5
NC
/
/
6
WHEELTICK
DI
Odometer wheel-tick input
7
FWD
DI
Forward/Backward signal input
8
GND
/
Ground

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3.7. Operation Status Indication LEDs
L1
L4L2
L3
L5
L6
L6
Figure 8: Operation Status Indication LEDs
Table 4: Operation Status Indication LEDs
SN.
Name
Description
L1
STATUS
Indicate the module operating status.
L2
NETLIGHT
Flicker slowly (200 ms High/1800 ms Low): Network searching.
Flicker slowly (1800 ms High/200 ms Low): Idle.
Flicker quickly (125 ms High/125 ms Low): Data transfer is ongoing.
Always high: Voice calling.
L3
POWER
EVB power indicator.
L4
LC29D_PWR
LC29D module power indicator.
L5
1PPS
Flash: successful fix.
Extinct: no fix.
L6
TXD
Flash: the module is turned on successfully and can output NMEA
messages.

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3.8. Test Points
The following figure illustrates the test points of the EVB.
1
2
3
4
5
6
7
8
9
10
Figure 9: J302 test points
Table 5: Pin Description of J302
SN.
Signal
I/O
Description
1
RXD1
DI
Receive data
2
VCC_3.3V
PO
3.3V power output
3
TXD1
DO
Transmit data
4
GND
-
Ground
5
RTS1
DO
Request to send
6
1PPS
DO
One pulse per second
7
CTS1
DI
Clear to send
8
I2C_SCL
OD
I2C clock
9
VDD_EXT
PO
1.8V power output
10
I2C_SDA
OD
I2C data

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4Firmware Download
This chapter mainly introduces how to download firmware while operating the EVB. For more details of the
usage of QGNSS tool, please refer to document [5].
LC29D module supports firmware download in both normal working mode and host mode.
4.1. Firmware Download in Normal Working Mode
Step 1: Connect J201 to the computer with a Type-B USB cable.
Step 2: Switch S203 to DL and power on the EVB.
Step 3: Run the QGNSS and then configure the tool as shown below.
Enhanced COM Port
a
b
d
c
e
UPG.bin
Figure 10: QGNSS Configurations
⚫
Please make sure the module is in full on mode before downloading firmware in normal working mode.
4.2. Firmware Download in Host Mode
NOTE

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Step 1: Connect J201 to the computer with a Type-B USB cable.
Step 2: Switch S203 to DL.
Step 3: Press and hold the LC29D_BOOT button (S301) during EVB power-on to make the module enter
host mode. After the module enters host mode successfully, release the button.
Step 4: Run the QGNSS and then configure the tool as shown below.
Enhanced COM Port
a
b
d
c
e
BOOT.bin
Figure 11: QGNSS Configurations

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5Instructions for the use of RTK
This chapter mainly introduces the account configuration of LC29D RTK.
5.1. RTK account configuration
RTK account configuration via USB AT Port of EG25 module. The baud rate of USB AT port is 115200bps.
The RTK account only needs to be configured for the first time unless the account expires or EG25 module
upgrade firmware.
Synopsis:
AT+QGNSSPARAM= 0,0," ip",port,"quectel_usr","quectel_pwd","mount_point",1,1
Table 6: Arguments
1）In case of no errors, the returned message will be:
+QGNSSPARAM OK
2）In case of any error, the returned message will be:
Parameter
Description
ProtoMode
0( ntirp protocol); 1( tcp protocol)
DataMode
The Tcp protocol is valid, 0( Rover Station); 1(Base station)
IP
Server IP address
Port
Server port
Usr
Ntrip protocol valid, user name
Pwd
Ntrip protocol is valid, password
Source
Ntrip protocol is valid, mount point
AssistUart
0: close
1: open, Standard COM Port can receive LC29D module NMEA data.
DataStore
0: close
1: open, SD card can receive LC29D module NMEA data.

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+QGNSSPARAM ERR
5.2. Steps to use RTK
The detailed steps are as follows.
Step 1: Insert (U)SIM card and connect 4G, GNSS antenna.
Step 2: Connect the EG25 USB connector to the computer and power on the EVB.
Step 3: Configure your RTK account.
Step 4: Restart the EVB after the RTK account is configured successfully.
Step 5: Connect Standard COM Port after restart, baud rate is 460800bps.
Step 6: Need to be in an open-sky environment to get into the RTK.
Step 7: When $PQTMINS the second parameter of becomes 3 or 4, enter RTK successfully.
Example:
$PQTMINS,680013,4,31.821291735,117.116094469,63.424977,-1.261245,0.036807,-
0.303004,166.014936,3.050992,120.071409*40