Mini PCIe EVB User Guide
UMTS/HSPA/LTE Module Series
Rev: Mini_PCIe_EVB_User_Guide_V1.1
Date: 2015-06-10
www.quectel.com
UMTS/HSPA/LTE Module Series
Mini PCIe EVB User Guide
Our aim is to provide customers with timely and comprehensive service. For any
assistance, please contact our company headquarters:
Quectel Wireless Solutions Co., Ltd.
Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233
Tel: +86 21 5108 6236
Mail: info@quectel.com
Or our local office, for more information, please visit:
http://www.quectel.com/support/salesupport.aspx
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For technical support, to report documentation errors, please visit:
http://www.quectel.com/support/techsupport.aspx
Or Email: Support@quectel.com
GENERAL NOTES
QUECTEL OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION
PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT
TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT
MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT
ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR
RELIANCE UPON THE INFORMATION. THE INFORMATION SUPPLIED HEREIN IS SUBJECT TO
CHANGE WITHOUT PRIOR NOTICE.
COPYRIGHT
THIS INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF
QUECTEL CO., LTD. TRANSMITTABLE, REPRODUCTION, DISSEMINATION AND EDITING OF THIS
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ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL
OR DESIGN.
Copyright © Quectel Wireless Solutions Co., Ltd. 2015. All rights reserved.
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About the Document
History
Revision
1.0
1.1
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Date
Author
Description
2015-03-03
Radom XIANG
Initial
2015-06-10
Radom XIANG
Deleted +5V adapter parts in EVB accessories
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Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 4
Figure Index ................................................................................................................................................. 5
1
Introduction .......................................................................................................................................... 6
1.1.
Safety Information ................................................................................................................... 7
2
General Overview ................................................................................................................................. 8
2.1.
Scope of the EVB .................................................................................................................... 8
2.2.
Key Features ........................................................................................................................... 8
2.3.
System Overview..................................................................................................................... 9
2.4.
Interface Overview................................................................................................................... 9
2.5.
EVB View ............................................................................................................................... 11
2.6.
EVB Accessories ................................................................................................................... 11
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3
Interface Application ......................................................................................................................... 13
3.1.
Power Interface ..................................................................................................................... 13
3.2.
USB Device Interface ............................................................................................................ 14
3.3.
Audio Interface ...................................................................................................................... 15
3.3.1. Earphone (J401/J403).................................................................................................... 16
3.3.2. Handset (J404/J402) ...................................................................................................... 18
3.4.
USIM Card Interface .............................................................................................................. 19
3.5.
UART Interface ...................................................................................................................... 21
3.6.
Switch and Button.................................................................................................................. 22
3.7.
Status LEDs ........................................................................................................................... 23
3.8.
Jumpers ................................................................................................................................. 24
3.9.
Test Points ............................................................................................................................. 24
4
Operation of Mini PCIe Module......................................................................................................... 26
4.1.
Power On Mini PCIe Module ................................................................................................. 26
4.2.
Power Off Mini PCIe Module ................................................................................................. 26
4.3.
Reset Mini PCIe Module........................................................................................................ 27
4.4.
Communication via USB or UART Interface ......................................................................... 27
4.4.1. Communication via USB Interface ................................................................................. 27
4.4.2. Communication via UART Interface............................................................................... 27
4.5.
Firmware Upgrade ................................................................................................................. 27
5
6
EVB Accessories Assembly ............................................................................................................. 29
Appendix A Reference....................................................................................................................... 30
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Table Index
TABLE 1: FEATURES .......................................................................................................................................... 8
TABLE 2: INTERFACES OF MINI PCIE EVB...................................................................................................... 9
TABLE 3: ACCESSORIES LIST ......................................................................................................................... 11
TABLE 4: PIN ASSIGNMENT OF USB DEVICE INTERFACE J302 ................................................................. 15
TABLE 5: PIN ASSIGNMENT OF J401/J403 .................................................................................................... 17
TABLE 6: PIN ASSIGNMENT OF J404/J402 .................................................................................................... 19
TABLE 7: PIN ASSIGNMENT OF J303 ............................................................................................................. 20
TABLE 8: PIN ASSIGNMENT OF J301 ............................................................................................................. 22
TABLE 9: DESCRIPTION OF SWITCH AND BUTTON .................................................................................... 23
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TABLE 10: DESCRIPTION OF STATUS LEDS ................................................................................................. 24
TABLE 11: JUMPER OPERATION OF J304/J405 ............................................................................................ 24
TABLE 12: TEST POINTS ................................................................................................................................. 25
TABLE 13: INDICATION OF D101 .................................................................................................................... 26
TABLE 14: RELATED DOCUMENTS ................................................................................................................ 30
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Figure Index
FIGURE 1: SYSTEM OVERVIEW ....................................................................................................................... 9
FIGURE 2: EVB TOP VIEW ............................................................................................................................... 11
FIGURE 3: EVB ACCESSORIES ...................................................................................................................... 12
FIGURE 4: SIMPLIFIED POWER SUPPLY SCHEMATIC ................................................................................ 13
FIGURE 5: POWER INTERFACE ..................................................................................................................... 14
FIGURE 6: POWER PLUG ................................................................................................................................ 14
FIGURE 7: CIRCUIT OF USB INTERFACE ...................................................................................................... 15
FIGURE 8: AUDIO CODEC CIRCUIT ............................................................................................................... 16
FIGURE 9: J401 EARPHONE CIRCUIT ........................................................................................................... 16
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FIGURE 10: J403 EARPHONE CIRCUIT ......................................................................................................... 17
FIGURE 11: PIN ASSIGNMENT OF J401/J403 ................................................................................................ 17
FIGURE 12: THE SKETCH OF CTIA AUDIO PLUG ......................................................................................... 18
FIGURE 13: J404 HANDSET CIRCUIT ............................................................................................................ 18
FIGURE 14: J402 HANDSET CIRCUIT ............................................................................................................ 19
FIGURE 15: SIMPLIFIED USIM CARD INTERFACE SCHEMATIC ................................................................. 20
FIGURE 16: PINS ASSIGNMENT OF USIM CARD HOLDER .......................................................................... 20
FIGURE 17: UART BLOCK DIAGRAM ............................................................................................................. 21
FIGURE 18: MAIN UART PORT (J301) ............................................................................................................ 22
FIGURE 19: SWITCH AND BUTTON................................................................................................................ 23
FIGURE 20: STATUS LEDS .............................................................................................................................. 23
FIGURE 21: TEST POINTS............................................................................................................................... 25
FIGURE 22: SELECT THE USB DM PORT TO UPDATE FIRMWARE ............................................................ 28
FIGURE 23: EVB AND ACCESSORIES EQUIPMENT ..................................................................................... 29
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1
Introduction
This document describes the evaluation board of Mini PCIe card. The Mini PCIe evaluation board is an
assistant system integrator for developing and evaluating products based on Quectel Wireless Modules.
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1.1. Safety Information
The following safety precautions must be observed during all phases of the operation, such as usage,
service or repair of any cellular terminal or mobile incorporating module. Manufacturers of the cellular
terminal should send the following safety information to users and operating personnel and to incorporate
these guidelines into all manuals supplied with the product. If not so, Quectel does not take on any liability
for customer failure to comply with these precautions.
Full attention must be given to driving at all times in order to reduce the risk of an
accident. Using a mobie while driving (even with a handsfree kit) cause distraction
and can lead to an accident. You must comply with laws and regulations restrcting
the use of wireless devices while driving.
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Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it
switched off. The operation of wireless appliances in an aircraft is forbidden to
prevent interference with communication systems. Consult the airline staff about
the use of wireless devices on boarding the aircraft, if your device offers a Fight
Mode which must be enabled prior to boarding an aircraft.
Switch off your wireless device when in hospitals or clinics or other health care
facilities. These requests are desinged to prevent possible interference with
sentitive medical equipment.
Cellular terminals or mobiles operate over radio frequency signal and cellular
network and cannot be guaranteed to connect in all conditions, for example no
mobile fee or an invalid SIM card. While you are in this condition and need
emergent help, Please Remember using emergency call. In order to make or
receive call, the cellular terminal or mobile must be switched on and in a service
area with adequate cellular signal strength.
Your cellular terminal or mobile contains a transmitter and receiver. When it is ON ,
it receives and transmits radio frequency energy. RF interference can occur if it is
used close to TV set, radio, computer or other electric equipment.
In locations with potencially explosive atmospheres, obey all posted signs to turn
off wireless devices such as your phone or other cellular terminals. Areas with
potencially exposive atmospheres including fuelling areas, below decks on boats,
fuel or chemical transfer or storage facilities, areas where the air contains
chemicals or particles such as grain, dust or metal powders.
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2
General Overview
Quectel supplies Mini PCIe-EVB kit for designers to develop applications based on Quectel Mini PCIe
module. This EVB can test all functionalities of Quectel Mini PCIe module.
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2.1. Scope of the EVB
Mini PCIe EVB is applicable to the following modules. Please refer to document [3] to obtain more details
for these modules.
UC20 Mini PCIe
UC15 Mini PCIe
EC20 Mini PCIe
2.2. Key Features
Table 1: Features
Features
Power Supply
Implementation
DC supply 4.5~5.5V typically 5V
VBAT: 3.3V at J202
USIM Card Interface
USIM/SIM card (6 pins) connector with push loading
USIM/SIM card: 3V and 1.8V
Audio Interface
Used for earphone and handset
UART Interface
COM-serial interface for data communication (default 115200bps)
Max. baud rate: 460800bps
USB Interface
USB 2.0
Signal Indication
2 LEDs are available for signal indication
Physical Characteristics
Size: 94 × 58mm
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2.3. System Overview
USIM card holder
J103
J303
W_DISABLE
GND
J402
1
2
J403
Mini PCIe card
J101
J102
9
3V3
COM (UART Port)
J301
5
Audio interface
USB_ON
6
J202
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VBAT
52
1
51
Status LEDs
D103 D101
J304 J405
3V
3V
UART
PCM
1.8V
1.8V
Test points
S201
J201
Power
supply
S101
J404
J401
J302
Power
switch
Micro USB
interface
RESET
Audio interface
Figure 1: System Overview
2.4. Interface Overview
Table 2: Interfaces of Mini PCIe EVB
Reference
Number
Description
J201
(bottom side)
The power jack on the EVB board. Supply voltage typically +5V
S201
Control power supply VBAT ON/OFF
RESET
S101
Reset button. It is used to reset the Mini PCIe module
Micro USB
J302
USB device interface
It can also be used to supply power to EVB board
Audio
J401
Used for Ф3.5mm CTIA earphone by default
Used to test module PCM function
Interface
Power Supply
Power Switch
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J404
(bottom side)
Used for handset
Used to test module PCM function
J402
(bottom side)
Used for handset
Used to test analog audio function of UC15 Mini PCIe only
J403
Used for Ф3.5mm CTIA earphone by default
Used to test analog audio function of UC15 Mini PCIe only
USIM
J303
(bottom side)
USIM/SIM card holder
COM
J301
(bottom side)
UART port
LEDs
D103, D101
D103 is VBAT ON/OFF indicator
D101 is used for indicating the status of Mini PCIe module
J101
Mini PCI Express connector for Mini PCIe module
J102
Latch for Mini PCIe module
J202
VBAT voltage testing
J304
Used for matching UART’s level
J405
Used for matching PCM’s level
J103
Reserved for module’s W_DISABLE# and USB_ON function
/
Used for UART signals and PCM signals testing
Mini PCIe
VBAT
Jumpers
Reserved
Test Points
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2.5. EVB View
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Figure 2: EVB Top View
2.6. EVB Accessories
All the items of EVB kit are listed as below. Please contact the supplier if there is something missing.
Table 3: Accessories List
Items
Cables
Description
Quantity
USB to UART converter cable
1
USB cable
1
RF cable
3
Main Antenna
2
GNSS Antenna (passive)
1
Antennas
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Audio
Earphone
1
Disk
USB2.0 to RS232 driver and USB driver disk
1
Other
Bolts and nuts for fixing EVB
1
USB to UART converter cable
Driver disk
Earphone
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Bolts and nuts
GNSS Antenna
USB cable
RF cable
Main Antenna
Figure 3: EVB Accessories
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3
Interface Application
This chapter describes the hardware interfaces of Mini PCIe EVB, shown as follows:
Power interface
USB interface
Audio interface
USIM card interface
UART interface
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It also provides information about LEDs, jumper, button and test points to help you use the Mini PCIe
EVB.
3.1. Power Interface
The power supply of Mini PCIe EVB could come from the external input which is connected with power
jack or USB receptacle on the EVB board. The power supply connects to a step-down converter which
can provide the supply voltage (VBAT) required for operating EVB and Mini PCIe module.
Figure 4 shows the simplified power supply schematic, and Figure 5 shows the power interface of Mini
PCIe EVB.
VBAT
U201
S201
Power
switch
3V3
Step-down converter
AAT2138
Power supply to
Mini PCIe module
1.8V
U202
J201
J302
Power jack
USB
3.0V
U203
Figure 4: Simplified Power Supply Schematic
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GND
5V DC Power input
Figure 5: Power Interface
You can also use an extra +5V DC adapter to supply power, shown as Figure 6.
Inner contact
Outer contact
Figure 6: Power Plug
3.2. USB Device Interface
Quectel Mini PCIe module provides a USB 2.0 interface which complies with USB 2.0 standard for
high-speed (480Mbps) functions. It is used for AT command, data transmission, firmware upgrade and
GNSS NMEA output.
Mini PCIe EVB provides a Micro-USB receptacle J302 to connect a host device. The USB data lines
USB_DP and USB_DM are connected directly to the Mini PCIe module. The USB_VBUS line can be used
to supply power for EVB.
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Power supply for EVB
1
NM_2pF
USB_DM 36
USB_DP 38
ESD Array
Differential layout
2 USB_DM
3
USB_DP
4
USB_ID
5
GND
USB_VBUS
GND
J302
J101
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Figure 7: Circuit of USB Interface
Table 4: Pin Assignment of USB Device Interface J302
J302 Pin
1
2
3
4
5
Pin Name
Function
USB_VBUS
This pin is used to supply power for EVB
USB_DM
USB serial differential bus (minus)
USB_DP
USB serial differential bus (positive)
USB_ID
Not connected
GND
GND for USB interface
3.3. Audio Interface
Quectel Mini PCIe module provides one digital audio interface (PCM). Mini PCIe EVB is equipped with an
external audio codec called ALC5616, and Figure 8 shows the audio codec circuit.
The Mini PCIe EVB provides several analog audio interfaces. J401 and J404 are used for module PCM
function which is connected through codec ALC5616. J402 and J403 are used for UC15 Mini PCIe analog
audio function only. This chapter gives a detailed introduction on these analog audio interfaces.
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45
R
24
C
CODEC
23
PCM_OUT
47
22
PCM_IN
49
21
I2C_SCL
30
26
32
27
4.7K
I2C_SDA
J101
LRCK1
DACDAT1
ADCDAT1
SCL
SDA
4.7K
51
PCM_SYNC
IN2P
IN2N
BCLK1
32
3
4
HPO_L
20
HPO_R
17
LOUTP
9
LOUTN
10
MIC_BIAS
PCM_CLK
MICBIAS1
MIC
Earphone
Handset
ALC5616
J405
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1.8V or 3.0V
Figure 8: Audio Codec Circuit
3.3.1. Earphone (J401/J403)
A CTIA earphone can be used in audio interface J401 or J403. The name of the corresponding pins had
been marked on the EVB. Figure 9 and Figure 10 show the circuit of audio interface J401 and J403 for
earphone separately.
Differential
layout
CODEC
IN2N 4
IN2P 3
4.7uF
GND GND
33pF 10pF
AGND
GND
ESD
1
HPO_R 17
3
HPO_L 20
5
4
2
Audio Jack
J401
AGND
10pF 10pF 33pF 33pF ESD
ESD
AGND
ALC5616
GND
Figure 9: J401 Earphone Circuit
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Differential
layout
4.7uF
GND GND
GND
33pF 10pF
ESD
UC15 Mini PCIe-MIC_P
3
1
UC15 Mini PCIe-SPK_P
5
3
7
5
4
2
UC15 Mini PCIe-MIC_N
UC15 Mini PCIe-SPK_N
AGND
1
Audio Jack
J403
AGND
10pF 10pF 33pF 33pF ESD
ESD
AGND
J101
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GND
Figure 10: J403 Earphone Circuit
6
5
4
3
2
1
Figure 11: Pin Assignment of J401/J403
Table 5: Pin Assignment of J401/J403
J401/J403 Pin
Pin Name
Function
1
MIC
Microphone input
2
AGND
Dedicated GND for Audio
3
SPK_R
Right channel of stereo audio output
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4
SPK_L
Left channel of stereo audio output
5, 6
NC
/
The following figure shows the sketch of CTIA audio plug which suits for the audio jack on Mini PCIe EVB.
4
SPK_L
32Ω
3
SPK_R
32Ω
2 GND
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MIC
1
SW
Figure 12: The Sketch of CTIA Audio Plug
3.3.2. Handset (J404/J402)
A handset can be used in audio interface J404 or J402. The name of the corresponding pins had been
marked on the EVB. Figure 13 and Figure 14 show the circuit of audio interface J404 and J402 for
handset separately.
ESD
CODEC
IN2P 3
IN2N 4
LOUTP 9
LOUTN 10
10pF
ESD
33pF 10pF 33pF 10pF 33pF
FB
4
1
3
2
ESD
10pF
ESD
J404
33pF 10pF 33pF 10pF 33pF
ALC5616
Figure 13: J404 Handset Circuit
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ESD
10pF
UC15 Mini PCIe-MIC_P
UC15 Mini PCIe-MIC_N
UC15 Mini PCIe-SPK_P
UC15 Mini PCIe-SPK_N
FB
1
3
ESD
33pF 10pF 33pF 10pF 33pF
4
1
5
7
3
2
ESD
10pF
ESD
J402
33pF 10pF 33pF 10pF 33pF
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J101
Figure 14: J402 Handset Circuit
Table 6: Pin Assignment of J404/J402
J404/J402 Pin
1
2
3
4
Pin Name
Function
MICN
Negative microphone input
SPKN
Negative speaker output
SPKP
Positive speaker output
MICP
Positive microphone input
3.4. USIM Card Interface
The Mini PCIe EVB has a 6-pin push-push type USIM/SIM card (3V or 1.8V) holder J303. Figure 15
shows the simplified interface schematic for J303.
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Push-Push
SIM_VDD 8
SIM_DATA 10
C1 SIM_VDD
C7 SIM_DATA
SIM_CLK 12
SIM_RST 14
C3 SIM_CLK
C2 SIM_RST
SIM_GND
GND
GND
USIM card holder
J303
J101
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Figure 15: Simplified USIM Card Interface Schematic
C1 C2 C3
C5 C6 C7
CD2 CD1
Figure 16: Pins Assignment of USIM Card Holder
Table 7: Pin Assignment of J303
J303 Pin
Signal Name
I/O
C1
SIM_VDD
O
USIM/SIM card power, generated by
the Mini PCIe module
C2
SIM_RST
O
USIM/SIM card reset
C3
SIM_CLK
O
USIM/SIM card clock
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C5
GND
/
Ground
C6
VPP
/
Not connected
C7
SIM_DATA
I/O
Data line, bi-directional
CD1
/
Not connected
CD2
/
Not connected
NOTE
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Mini PCIe module does not support SIM card detection.
3.5. UART Interface
The UART interface COM of the Mini PCIe EVB is intended for the communication between the module
and the host application. This interface can be used for data transmission and AT communication.
The following figure shows the UART block diagram on Mini PCIe EVB.
3.0V or 1.8V from J304
RS232
RS232
Level Match
3.0V
Level
Translator
J301
UART interface
COM
DB9
3.0V or
1.8V
J101
Figure 17: UART Block Diagram
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8
4
7
3
6
2
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Figure 18: Main UART Port (J301)
Table 8: Pin Assignment of J301
J301 Pin
1
2
3
4
5
6
7
8
9
Signal Name
I/O
Description
RS232_DCD
O
Data carrier detection
RS232_RXD
I
Receive data
RS232_TXD
O
Transmit data
RS232_DTR
I
Data terminal ready
RS232_GND
/
GND
NC
/
NC
RS232_RTS
I
Request to send
RS232_CTS
O
Clear to send
RS232_RI
O
Ring indicator
3.6. Switch and Button
Mini PCIe EVB comprises a button (S101) and a switch (S201). Figure 19 shows the switch and button.
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S201
S101
Figure 19: Switch and Button
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Table 9: Description of Switch and Button
Reference
S201
S101
Description
Control power supply VBAT ON/OFF.
It is used to reset the Mini PCIe module.
Press the button for more than 150ms and then release to reset the module.
Please note that press time cannot be more than 200ms for UC15 Mini
PCIe, otherwise the module will be powered off.
3.7. Status LEDs
Mini PCIe EVB comprises two status LEDs (D103, D101). Figure 20 shows the position of LEDs.
D103
D101
Figure 20: Status LEDs
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Table 10: Description of Status LEDs
Reference
Description
D103
Indicate the power supply is ready
Bright: VBAT ON
Extinct: VBAT OFF
D101
Indicate the module network registration mode
Bright: registered to network
Extinct: not registered or in airplane mode
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3.8. Jumpers
Mini PCIe EVB provides jumper J304 and jumper J405 to match up the UART’s and PCM’s level with Mini
PCIe module. The following table shows the jumper operation of J304/J405.
Table 11: Jumper Operation of J304/J405
Module Interface Level
Jumper J304
Jumper J405
3.3V UART Level
Connects UART and 3V
/
1.8V UART Level
Connects UART and 1.8V
/
3.3V PCM Level
/
Connects PCM to 3V
1.8V PCM Level
/
Connects PCM to 1.8V
NOTES
1.
2.
By default, Jumper J304 is set to UART and 3V, and Jumper J405 is set to PCM and 1.8V.
If you want to enable W_DISABLE# function, please connect W_DISABLE and GND by the reserved
Jumper J103.
3.9. Test Points
Mini PCIe EVB provides some test points for some signals. It can help to obtain the corresponding
waveform.
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Figure 21: Test Points
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Table 12: Test Points
Test Points Name
Description
TXD
Connected directly to Mini PCIe UART’s TXD
CTS
DTR
RXD
RTS
DCD
RI
PCM_CLK
PCM_SYNC
PCM_OUT
PCM_IN
D-
Connected directly to Mini PCIe UART’s RTS
Connected directly to Mini PCIe UART’s DTR
Connected directly to Mini PCIe UART’s RXD
Connected directly to Mini PCIe UART’s CTS
Connected directly to Mini PCIe UART’s DCD
Connected directly to Mini PCIe UART’s RI
Connected directly to Mini PCIe PCM’s PCM_CLK
Connected directly to Mini PCIe PCM’s PCM_SYNC
Connected directly to Mini PCIe PCM’s PCM_OUT
Connected directly to Mini PCIe PCM’s PCM_IN
Connected directly to Mini PCIe USB’s USB_DM
D+
Connected directly to Mini PCIe USB’s USB_DP
VBAT
Connected directly to the output of AAT2138
GND
Ground
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Operation of Mini PCIe Module
4.1. Power On Mini PCIe Module
1. Connect the Mini PCIe module to the connector J101 on Mini PCIe EVB, charge with USB cable or
+5V power adapter and insert SIM card to J303.
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2. Switch S201 to ON state, D103 will be light and indicates power supply for EVB is ready. The module
will be powered on automatically. D101 (NET_STATUS) will be light after the module registered to the
network successfully.
Table 13: Indication of D101
Reference
D101
NET_STATUS
State
Description
Always ON
Registered to network
Always OFF
Others
4.2. Power Off Mini PCIe Module
There are two ways to power off Mini PCIe module.
One way is to execute AT command AT+QPOWD (Refer to document [2]). It is the best and safest
approach. It logs off the network and saves data before shutdown. But Mini PCIe module will be powered
on again after shutdown.
The other way is to switch S201 (POWER) to OFF state directly, but this way is not recommended. Please
switch S201 to OFF after shutting down the module by executing AT command AT+QPOWD.
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4.3. Reset Mini PCIe Module
The emergency restart option is only used in case of emergency. For example, the software does not
respond for more than 5 seconds due to some serious problems.
Pressing the key S101 for more than 150ms then releasing will reset the Mini PCIe module. This may
cause the loss of information stored in the memory since the reset has been initialized.
4.4. Communication via USB or UART Interface
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4.4.1. Communication via USB Interface
1.
2.
3.
Power on the Mini PCIe module.
Connect EVB and PC with USB cable through USB interface, refer to document [1] to install USB
driver from the Driver Disk.
Configure AT Command Window, select correct communication port, and operate the Mini PCIe
module via AT commands.
4.4.2. Communication via UART Interface
1.
2.
3.
4.
Install the USB-to-RS232 driver from the Driver Disk.
Connect the UART interface to PC with USB-to-RS232 converter cable.
Configure AT Command configuration tool, set correct baud rate (such as 115200bps) and COM
number which can be checked by the Device Manager on PC.
Power on the Mini PCIe module and operate the module via AT commands.
4.5. Firmware Upgrade
Mini PCIe Module upgrades firmware via USB port by default, please follow the procedures below to
upgrade firmware.
1.
2.
3.
4.
Open the firmware upgrade tool “QFlash” in the PC and power on the Mini PCIe module.
Click the “COM Port” dropdown list and select the USB DM port.
Click the “Load FW Files” button to choose the firmware document package.
Click the “Start” button to upgrade the firmware.
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Figure 22: Select the USB DM Port to Update Firmware
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EVB Accessories Assembly
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Figure 23: EVB and Accessories Equipment
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Appendix A Reference
Table 14: Related Documents
SN
Document Name
Remark
[1]
Quectel_XX_Drivers_for_Windows_Installation
_Guide
XX represents UC20, UC15 and EC20 etc.
Install USB driver of module in Windows
XP/Vista/7/8.
[2]
Quectel_XX_AT_Commands_Manual
XX represents UC20, UC15 and EC20 etc.
[3]
Quectel_XX_Mini_PCIe_Hardware_Design
XX represents UC20, UC15 and EC20 etc.
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