Cavli Wireless C16QS EVK Instruction manual

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C16QS EVK User Manual
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Re-imagining Cellular IoT Solutions
Cavli C16QS EVK
Connection Manual
External Release Version 1.1
www.cavliwireless.com

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Copyright © Cavli Inc. All rights reserved

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Table of Contents
List of Figures ...................................................................................................................................................5
1Introduction....................................................................................................................................................7
1.1 Overview ...................................................................................................................................................................... 7
1.2 References.................................................................................................................................................................. 7
2Interfaces...........................................................................................................................................................8
2.1 Chapter Overview...................................................................................................................................................... 8
2.2 EVK Layout................................................................................................................................................................. 8
2.3 Pin Layout................................................................................................................................................................... 9
2.4 Component description ......................................................................................................................................... 12
3Setup Guide.....................................................................................................................................................15

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List of Figures
Figure 1 C16QS EVK interface Layout .....................................................................................................................8
Figure 2 Component description ..........................................................................................................................12
Figure 3 Placing the EVK on an insulated surface.................................................................................................15
Figure 4 Interfacing Antenna ................................................................................................................................16
Figure 5 Supplying power .....................................................................................................................................16
Figure 6 Jumper 3 Pinout......................................................................................................................................17
Figure 7 Placing Jumper according to Power Source............................................................................................17
Figure 8 LED indicating the power source is connected.......................................................................................18
Figure 9 Power ON (Green) and RESET button (Orange)......................................................................................18
Figure 10 Pressing the Power Key.........................................................................................................................19
Figure 11 Indication LEDs......................................................................................................................................19
Figure 12 Complete Setup.....................................................................................................................................20
Figure 13 COM Ports.............................................................................................................................................20
Figure 14 RNDIS ....................................................................................................................................................21

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VERSION HISTORY
Version
Edit
Date
1.0
Initial Version
03-03-2023
1.1
Added Setup Guide
07-03-2023

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1Introduction
1.1 Overview
This document aims to familiarize the reader on the different functionalities and interfaces of C16QS
Evaluation board. It also helps the customer in getting started with the C16QS EVK.
The EVK is a tool designed for engineers, programmers and developers who are looking to:
•Debug and/or improve applications based on Cavli C16QS module.
•Develop a first-pass proof-of-concept device for new application.
1.2 References
The present document is based on the following document:
Cavli C16QS Hardware Manual

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2Interfaces
2.1 Chapter Overview
Description:
This chapter contains all the necessary information on C16QS EVK Interfaces and Pin-outs.
2.2 EVK Layout
Figure 1 C16QS EVK interface Layout

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2.3 Pin Layout
2.3.1 P1 Pinout –C16QS
Pin
No.
Pin name
Pin
No.
Pin name
1
ADC0
2
+3.3 V
3
ADC1
4
V_EXT
5
STATUS
6
AGPIO5
7
AP READ
8
GPIO7
9
TXD2 (U2 TXD)
10
DTR
11
RXD2
12
CTS
13
TXD0
14
RTS
15
RXD0
16
DCD
17
GPIO1
18
RI
19
SWDIO
20
SCL
21
SWCLK
22
SDA
23
GND
24
MISO
25
NS
26
MOSI
27
BKL
28
CLK
29
DOUT
30
CS
31
DIN
32
AGPIO
33
LRCK
34
1.8 V
35
MCLK
36
GND

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2.3.2 P2 –ESP32 UART
Pin
No.
Pin name
Pin
No.
Pin name
1
RXD
2
TXD
3
GND
2.3.3 P3 –AT UART(C16QS)
Pin
No.
Pin name
Pin
No.
Pin name
1
+5 V
2
TXD
3
RXD
4
GND
2.3.4 P6 –GNSS UART(C16QS)
Pin
No.
Pin name
Pin
No.
Pin name
1
GNSS_TXD
2
GNSS-RXD
3
GND
2.3.5 P7 Pinout –ESP32
Pin
No.
Pin name
Pin
No.
Pin name
1
IO23
2
+3.3 V
3
IO22
4
GND
5
IO21
6
IO19
7
IO18
8
S-VP

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9
IO5
10
IO17
11
S-VN
12
IO16
13
IO4
14
IO34
15
IO35
16
IO32
17
IO33
18
IO25
19
EN
20
IO26
21
IO2
22
IO15
23
IO13
24
IO27
25
IO14
26
IO12
2.3.6 JMP 3 –Input Power Jumper
Pin
No.
Pin name
Pin
No.
Pin name
1
5V_ADAP
2
5V (Out)
3
5V_USB

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2.4 Component description
Figure 2 Component description
1. LTE Antenna Connector
C16QS EVK comes with an SMA Antenna connector from Amphenol for interfacing an
external LTE Antenna.
2. GNSS ANTENNA Connector
C16QS EVK comes with an SMA Antenna connector from Amphenol for interfacing an
external GNSS Antenna.

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3. Power Key (ESP 32)
This button is used to power ON ESP32.
4. Boot (ESP32)
This button is used to enter flashing mode in ESP32.
5. Enable (ESP32)
This button is used to enable the 3.3V regulator of ESP32.
6. Reset Key (C16QS)
This button is used to reset the module.
7. POWER Key (C16QS)
This button is used to turn ON the module.
8. Jumper 3 (JMP 3)
This Jumper is used to switch between the voltage sources (USB Type-C and +5V Adapter).
The first position enables USB Type-C as the input voltage source and the second position
enables +5V Adapter as the voltage source.
9. Jumper 7 (JMP 7)
This Jumper is used to switch between voltages VADC0 and VDD_3V3 for ADC0.
10. Jumper 5 (JMP 5)
This Jumper is used to pull the Power Key to ground (low). This can be used to turn ON the
module.
11. USIM Card Slot
The sim card socket type used in the C16QS EVK is a micro sim card socket.
12. USB Type-C (For Power/COM Ports)
The USB Type-C interface can be used for Powering up the device as well as for Serial
communication (3xCOM Ports) –2x AT Port and 1x Logging.

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13. +5V Adapter input
This socket can be used to power up the board by connecting a 5V, 2A DC power adapter into
the input jack.
14. Jumper 10 (JMP 10)
This Jumper is used to connect ESP_RxD to U1_TxD of C16QS.
15. Jumper 6 (JMP 6)
This Jumper is used to connect ESP_TxD to U1_RxD of C16QS.
16. Jumper 1 (JMP 1)
This Jumper is responsible for the connection to IO12.
It is used to bypass SW5.
17. Jumper 9 (JMP 9)
This Jumper is used to enable Flight mode (W_Disable).

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3Setup Guide
Given below are the various steps involved in the connection of C16QS with a PC:
1. Place the EVK on an insulated platform.
Figure 3 Placing the EVK on an insulated surface

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2. Connect the needed Antenna(s) to the corresponding SMA Connectors (For LTE and
GNSS Antennas).
Figure 4 Interfacing Antenna
3. Connect the needed power supply input (We have used Type-C).
Figure 5 Supplying power

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4. Place the Power Input Jumper (JMP 3) according to the input power supply.
Figure 6 Jumper 3 Pinout
Figure 7 Placing Jumper according to Power Source

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5. Once the Power Input LED (Red Colour next to the JMP) turns ON, it means the
supply is connected to the power source.
Figure 8 LED indicating the power source is connected
6. Press the Power ON Button to turn ON the C16QS Module.
Figure 9 Power ON (Green) and RESET button (Orange)

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Figure 10 Pressing the Power Key
7. The Power ON LED for the module turns Green once the module starts to boot.
Once the RF functionality is enabled, i.e., AT+CFUN=1, the NETLIGHT will be ON (blinking-
searching for network, stable-latched on to network).
Figure 11 Indication LEDs

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8. The complete setup is shown below:
Figure 12 Complete Setup
9. Using Type-C USB, after complete module boot up, COM ports will be automatically be
initialized onto your Windows PC (ttyUSB in Linux).
•2xCOM for AT Port
•1xCOM for DM Port
Figure 13 COM Ports

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10. If RNDIS is enabled through the AT port, it will be listed under ‘Network Adapters’ in ‘Device
Manager’ in Windows PC.
Figure 14 RNDIS
NOTE
•To access the COM/ttyUSB ports via the Type-C USB interface, the module must be fully
booted up. Else the COM/ttyUSB ports would not be initialized.
•To access internet through RNDIS, the command AT$QCNETDEVCTL=3,1 has to be
given to the module via the AT Port. Once done, you need not repeat this step again.
•To access the UART Ports directly through the pin-outs, you must you a TTL Converter.