Sunsea AIoT SIMCom SIM7800-EVB User manual

SIM7800-EVB Kit_User Guide_V1.00

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Document Title: SIM7800-EVB Kit_User Guide
Version: 1.00
Date: 2018-08-28
Status:
Document Control ID: SIM7800-EVB Kit_User Guide_V1.00
General Notes
SIMCom offers this information as a service to its customers, to support application and engineering efforts
that use the products designed by SIMCom. The information provided is based upon requirements
specifically provided to SIMCom by the customers. SIMCom has not undertaken any independent search for
additional relevant information, including any information that may be in the customer’s possession.
Furthermore, system validation of this product designed by SIMCom within a larger electronic system
remains the responsibility of the customer or the customer’s system integrator. All specifications supplied
herein are subject to change.
Copyright
This document contains proprietary technical information which is the property of SIMCom Limited.,
copying of this document and giving it to others and the using or communication of the contents thereof, are
forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in
the event of grant of a patent or the registration of a utility model or design. All specification supplied herein
are subject to change without notice at any time.
Copyright © Shanghai SIMCom Wireless Solutions Ltd. 2018

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Contents
Contents..................................................................................................................................................................... 3
Version History.......................................................................................................................................................... 5
1. SIM7800-EVB Overview ...................................................................................................................................... 6
2. EVB Accessory...................................................................................................................................................... 7
3. Accessory Interface................................................................................................................................................ 8
3.1 Power Interface............................................................................................................................................ 8
3.2 Audio Interface ............................................................................................................................................ 8
3.3 SIM Card Interface ...................................................................................................................................... 9
3.4 USB Interface .............................................................................................................................................. 9
3.6 Ethernet Jack.............................................................................................................................................. 10
3.7 Power Switch..............................................................................................................................................11
3.8 POWER_ON Button...................................................................................................................................11
3.9 RF Switch ...................................................................................................................................................11
3.10 LED Indicator ...........................................................................................................................................11
4. Test Interface ....................................................................................................................................................... 12
4.1 Test Point Part 1 description ...................................................................................................................... 12
4.2 Test Point Part 2 description ...................................................................................................................... 14
5. Illustration............................................................................................................................................................ 17
5.1 SIMCom TE installation and uninstallation .............................................................................................. 17
5.2 Power on Module:...................................................................................................................................... 17
5.3 Registering Network and Making a Call ................................................................................................... 18

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Figure Index
FIGURE1: SIM7800-EVB TOP VIEW.............................................................................................................................. 6
FIGURE2: SIM7800-EVB BOTTOM VIEW .................................................................................................................... 6
FIGURE3: EVB ACCESSORY .......................................................................................................................................... 7
FIGURE 4: AUDIO INTERFACE...................................................................................................................................... 8
FIGURE 5: VIRTUALSERIAL PORT............................................................................................................................... 9
FIGURE 6: ETHERNET JACK J401 AND ETHERNET TRANSCEIVER.................................................................... 10
FIGURE 7:ETHERNET JACK J601 AND ETHERNET TRANSCEIVER..................................................................... 11
FIGURE8: TEST INTERFACE OVERVIEW 1 ............................................................................................................... 12
FIGURE9: TEST INTERFACE OVERVIEW 2 ............................................................................................................... 14
FIGURE10: TE ASSEMBLY ........................................................................................................................................... 17

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Version History
Data Version Description of change Author
2018-08-28 1.00 Origin yu.zhu
xiuyu.zhang
SCOPE
This document describes how to use SIM7800-EVB to do test; user can get useful info about the SIM7800-EVB
quickly through this document.
This document is subject to change without notice at any time.

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1. SIM7800-EVB Overview
Figure1: SIM7800-EVB TOP view
Figure2: SIM7800-EVB BOTTOM view

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A:Earphone Jack
B:USB to UART Jack1
C:USB to UART Jack2
D:Power Jack
E:Reset Key
F:Power Key
G:Power Switch
H:RF Switch
I:Industrial Ethernet Jack
J: TE connector
K:USB_OTG Connector
L:SD_Card Connector
M:TE connector
N:Test Point
O:Automotive Ethernet Jack
P:Handset Jack
Q:SIMcard Connector
R:Test Point
S:Speaker Pads
T: LED indicator for Power/Status/Netlight
2. EVB Accessory
Figure3: EVB Accessory
A: SIM7800-TE
B: 5V DC adapter
C: USB Cable
D: GSM/WCDMA/LTE antenna

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E: GNSS antenna
3. Accessory Interface
3.1 Power Interface
Pin Signal I/O Description
1 Adapter input I 5V/2.0A DC source input
3.2 Audio Interface
There are 3 audio interface on the EVB board:
Handset jack（J502）
Earphone jack （X501）
Speaker test point（J501）
Audio codec NAU8810 has integrated headset driver 40mW(16Ω/3.3V) and BTL speaker driver 1W(8Ω/5V).
Figure 4: Audio Interface
Headset interface:
Pin Signal I/O Description
1 MICN I Negative microphone input
2 SPKN O Negative receiver output

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3 SPKP I Positive receiver output
4 MICP O Positive microphone input
3.3 SIM Card Interface
One SIMCard holder (J202) on the EVB，support identity card: 1.8V/ 3V
3.4 USB Interface
There are two USB to UART ports on EVB
USB to UART1/4 : J301
USB to UART2/3 : J302
EVB USB interface could be imaged to two virtual ports.
Figure 5: Virtualserial port
For J301:
Enhanced COM port: UART 1
Standard COM port: UART4
For J302:

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Enhanced COM port: UART 2
Standard COM port: UART3
CP2105 driver is available here:
http://www.silabs.com/products/interface/usb-bridges/Pages/usb-bridges.aspx
3.6 Ethernet Jack
Two Ethernet Jacks on EVB.
100Mb/s automotive Ethernet jack J401
The Broadcom BCM89820 is a integrated 100Mb/s automotive Ethernet transceiver, Support for the
100Mb/s single-pair BroadR-Reach copper-line interface.
Applications: Automotive Ethernet.
Figure 6: Ethernet jack J401 and Ethernet transceiver
10/100/1000 Mbps Industrial Ethernet jack J601
The Qualcomm AR8033 is a integrated 10/100/1000Mbps Ethernet transceiver, and Industry temperature （I-temp）
option available.
Applications: Industrial Ethernet.

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Figure 7:Ethernet jack J601 and Ethernet transceiver
3.7 Power Switch
After 5V Adapter inserted ,switch S201 on, then power LED (D201) will be solid on and the Module will be
powered.
3.8 POWER_ON Button
After give power to EVB,press the PWRKEY button（S101）for more than 0.5 seconds, the module will be turned
on, and the network LED light (D101) will blink lately.
3.9 RF Switch
RF switch (S103) could control module RF function to be on or off. That’s hardware control of flight mode. By
default, the RF switch should be turned to the “NORMALMODE”. However, when the switch is turned to the
“FLIGHTMODE”, the module will then enter the flight mode, the RF function will be turned off.
3.10 LED Indicator
LED light work’s behaviour as below.

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Name Description STATUS
D201 Power ON/OFF indicator Bright：EVB Power ON;
Extinct: EVB Power OFF
D101 NET status indicator Blinking at a certain frequency according various net status
D102 Module status indicator
Bright: Module runs normally
Extinct: System is powered down
4. Test Interface
4.1 Test Point Part 1 description
Figure8: Test interface overview 1
Test point A Pin description:
Pin
Signal
I/O
Description
1 SIM_DET I SIM detect
2 SIM_VDD I Power for SIM card
3 SIM_RST O SIM Reset
4 NC - -
5 TXD1 O Transmit data 1
6 RXD1 I Receive data 1
7
CTS1
O
Clear to Send 1
8 RTS1 I Request to Send 1
9
GPIO_24
I/O
GPIO 24

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10 DTR1 I Data Terminal Ready 1
11 RI1 O Ring Indicator 1
12
DCD1
O
Data carrier detection 1
13 NC - -
14 GND
P
Ground
15
SIM_IO
I/O
SIM IO
16 SIM_CLK O SIM Clock
Test point B Pin description:
Pin Signal I/O Description
1 STATUS O Indication signal for module working
on indicate
2 NETLIGHT O Indication signal for NET status
indicate
3 FLIGHT MODE O Control signal for flight mode
4 GND
P
Ground
5
TXD4
O
Transmit data 4
6
RXD4
I
Receive data 4
7 CTS4 O Clear to Send 4
8 RTS4 I Request to Send 4
9 RXD3 O Transmit data 3
10 TXD3 I Receive data 3
11 CTS3 O Clear to Send 3
12 RTS3 I Request to Send 3
13 TXD2 O Transmit data 2
14 RXD2 I Receive data 2
15
CTS2
O
Clear to Send 2
16 RTS2 I Request to Send 2
Test point C Pin description:
Pin Signal I/O Description

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1 VREG_2P85 P Power 2.85V output from module
2 SD_DET I SD card detect
3
GND
P
Ground
4 NC - -
5 NC - -
6
GRFC1
O
General RF control 1
7 RFFE3_CLK O RF front-end interface clock
8 RFFE_DATA I/O RF front-end interface data
9 VDD_3.0V P Power supply 3.0V for active GNSS
antenna
10 LNA_1P8 P Power 1.8V output from module (NC
by defualt)
11
LNA_EN
O
GNSS LNA enable output
12 NC - -
13 NC - -
14
VREG_1V8
P
Power 1.8V output from module
15 SDA2 I/O I2C2 DATA
16 SCL2 O I2C2 CLOCK
4.2 Test Point Part 2 description
Figure9: Test interface overview 2
Test point D Pin description:

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Pin
Signal
I/O
Description
1 VREG_UIM2 P VDD for MDIO
2 MDIO_CLK O MDIO clock
3 MDIO_DATA I/O MDIO data
4 PCM_CLK O PCM data bit clock
5 PCM_SYNC O PCM data frame sync signal
6 PCM_OUT O PCM data output
7 PCM_IN I PCM data input
8 PCM_MCLK O PCM data main clock
9
MIC_N
I
Micphone negative input
10 MIC_P I Micphone positive input
11 SPK1N O Speaker negative output
12 SPK1P O Speaker positive output
13 GND P Ground
14 ETH_INT I Ethernet interrupt signal
15 ETH_RST I Ethernet reset signal
16
RESOUT
O
Reset output from the module
Test Point E Pin description:
Pin Signal I/O Description
1 NC - -
2 NC - -
3 GND P Ground
4
GND
P
Ground
5 USB_ID I USB ID
6 VBUS
P
USB VBUS
7
5V_EVB
P
DC-JACK 5V for EVB
8 USB_SWITCH I Switch USB port on TE or EVB
9 GPIO25 I/O GPIO
10 SLEEP_CLK O WLAN 32K Sleep clock input
11 WLAN_PWR O WLAN power enable
12 BT_EN O BT enable
13 COEX2 O RF synchronizing between Wi-Fi and

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LTE
14 WLAN_EN O WLAN enable
15
COEX_TX
16 COEX_RX
Test Point F Pin description:
Pin Signal I/O Description
1 I2S_DO O I2S data out
2 I2S_DI I I2S data in
3 I2S_BCLK O I2S bit clock
4 I2S_WS O I2S word select
5 GND
P
Ground
6
PWRKEY
I
Power on input
7 VBAT P Main power for module system
8 VBAT P Main power for module system
9 USB_OTG_EN O USB OTG enable
10 RESET_N I System reset signal
11 ADC2 I ADC input 2
12 ADC1 I ADC input 1
13
ADC0
I
ADC input 0
14 GND
P
Ground
15 I2C1_SCL O I2C1 SCL
16
I2C1_SDA
I/O
I2C1 SDA
Note: please refer to specified TE schematic for test point if there has difference.

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5. Illustration
5.1 SIMCom TE installation and uninstallation
Figure10: TE assembly
Install TE board:
1) It’s easy to put TE in correct position without making mistake.
2) take care of TE SMA connector direction;
3) take care of the BTB connector direction;
Uninstall and replace TE board:
1) it’s a little hard to remove TE board from EVB connector, because they are connected closely.
2) Take care with power to remove from SMA connector side slowly.
5.2 Power on Module:
1) Connect the SIMCOM TE to the 2x80pins BTB connector on EVB, plug in 5V DC adapter, switch S201 to
“ON”state; keep S103 to “NORMALMODE” position.
2) Press the POWER_ON button for more than 0.5 second and then release, SIMCOM module will power
on.After the module is on, the LED light D102 will be bright ,and the LED light D101will blink at a certain
frequency. Through the state of LED, you can judge registering status of the module. For detailed description,
please refer to SIMCOM HD document.

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5.3 Registering Network and Making a Call
1) Install antenna to TE board, insert SIM card.
2) Connect the USB cable to the USB jack; launch the Hyper Terminal in computer.
3) Check the serial port number from Device Manager list.
4) Use the Hyper Terminal to make a call from module as following:
a) Launch hyper terminal
b) configure right com port

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c) configure baudrate
d) Lastly connect the module and make a call.

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