Sercomm TPM540 EVK User manual

TPM540 EVK
www.sercomm.com DOC- 1
Cat-M1/NB1 Module
TPM540 EVK
USER GUIDE
Specifications are subject to change without notice and should not be
construed as a commitment by Sercomm Corporation
Copyright2017 by Sercomm Corporation All rights reserved.
Ver 1.0

TPM540 EVK
www.sercomm.com DOC-669671v1 2
Cat-M1/NB1 Module
Document Revision History
Revision History
Rev
Date
Description
V1.0
04/11/2017
Initial Release V1.0

TPM540 EVK
www.sercomm.com DOC-669671v1 3
Cat-M1/NB1 Module
Table of contents
1. Introduction ........................................................................................................................................................................ 4
1.1. Document Purpose.............................................................................................................................................. 4
1.2. Kit contents ........................................................................................................................................................ 4
2. EVK functions introduce ........................................................................................................................................................ 5
2.1. EVK Block Diagram .............................................................................................................................................. 5
2.2. EVK Interfaces..................................................................................................................................................... 6
3. Starting with TPM540 EVK..................................................................................................................................................... 7
3.1. Hardware preparation and setup .......................................................................................................................... 7
3.2. Software preparation and setup............................................................................................................................ 8
3.3. Starting to access EVK and TPM540....................................................................................................................... 8
4. Button introduce.................................................................................................................................................................. 9
4.1. RECOVERY button:............................................................................................................................................... 9
4.2. WAKEUP button:................................................................................................................................................. 9
4.3. RESET button:..................................................................................................................................................... 9
4.4. STATUS button:................................................................................................................................................... 9
5. LED status ..........................................................................................................................................................................10
5.1. Module_PWR1 LED:............................................................................................................................................10
5.2. Module_LED1: ...................................................................................................................................................10
5.3. Module_LED2: ...................................................................................................................................................10
6. Special hardware configuration pins ......................................................................................................................................11
6.1. SWD(JP17): TBD .................................................................................................................................................11
6.2. Isolation control(JP3): .........................................................................................................................................11
6.3. Debug Selection(JP12): .......................................................................................................................................11
6.4. Anti Tamper(JP11): TBD ......................................................................................................................................11
7. Firmware Upgrade...............................................................................................................................................................12

TPM540 EVK
www.sercomm.com DOC-669671v1 4
Cat-M1/NB1 Module
1. Introduction
1.1. Document Purpose
The purpose of this document is to introduce TPM540 EVK and to provide a design reference.
EVK also enables users to make a prototype on TPM540 platform which resembles the actual
target during the design and build phases of a project. It makes the design efforts of a user
simple, cost-effective and fast. Various interfaces which is included on the board make the
development board ideal for a wide variety of applications. The EVK leverages the capability of
the TPM540 LTE Cat. M1 cellular module and provides access to a variety of interfaces including
UART, USB, USIM.
1.2. Kit contents
Three USB to Micro USB Cables
TPM540 EVK
One SMA-type Antenna

TPM540 EVK
www.sercomm.com DOC-669671v1 5
Cat-M1/NB1 Module
2. EVK functions introduce
2.1. EVK Block Diagram
Figure 2.1 illustrates TPM540 EVK Block diagram and shows available interfaces for reference .
Figure 2.1

TPM540 EVK
www.sercomm.com DOC-669671v1 6
Cat-M1/NB1 Module
2.2. EVK Interfaces
Table 2.2 lists TPM540 available interfaces on EVK for reference .
Table 2.2
Interface
Note
UART0/J3
AT commands UART interface, default baud rate: 115200
UART1/J2
Console Log UART interface, default baud rate: 115200
UART2/J7
CLI/Firmware upgrade UART interface, default baud rate: 115200
USIM/J17
SIM card solt, supports 3FF, micro SIM card
JP5
UART0 to USB/external MCU switch jump.
JP2
UART1 to USB/external MCU switch jump.
JP1
UART2 to USB/external MCU switch jump.
J19
TPM540 USB interface
S2
Power switch
J8/J21
RF_GNSS interface
J6/J11
RF_LTE interface
J1
5V DC input

TPM540 EVK
www.sercomm.com DOC-669671v1 7
Cat-M1/NB1 Module
3. Starting with TPM540 EVK
3.1. Hardware preparation and setup
Attach the included antenna to the SMA connectorJ21
Plug-in the included DC adapter to DC Jack J1
Or each UART to USB cable.
Plug-in 3FF SIM card to J17(back side of EVK)
Switch on S2(Power switch) to turn on TPM540.
There is no need to turn on S2 while using USB cable to power up EVK
Figure 3.1
Module PWR1 LED will be lighted when turning on EVK successfully.

TPM540 EVK
www.sercomm.com DOC-669671v1 8
Cat-M1/NB1 Module
3.2. Software preparation and setup
Prepare and install Silicon Lab CP210X UART to USB Driver, Version 6.7
(Please access Silicon Lab website to download driver.)
Prepare Serial Port Terminal Tool (Putty, SecureCRT, Teraterm..etc)
3.3. Starting to access EVK and TPM540
Turn on EVK
Connect UART0 to PC via USB cable.
Setup Terminal tools, please refer figure 3.3
COM port: com port will be enumerated on Windows device manager
Setting Baud rate for UART0: default is 115200.
Figure 3.3 for putty setting.
Opening terminal tools and sending AT command from UART.

TPM540 EVK
www.sercomm.com DOC-669671v1 9
Cat-M1/NB1 Module
4. Button introduce
4.1. RECOVERY button:
This button is used to enter boot ROM mode for firmware upgrade and recovery system
when device cannot boot up by some reason.
Please visit Sercomm technical support website and issue a ticket when you have problem
with boot up your TPM540.
4.2. WAKEUP button:
This button is connecting to PMU_WAKEUP ping and used to wakeup TPM540 while device is
under power saving mode.
When there is no traffic, TPM540 will get into power saving mode immediately and TPM540
cannot receive and deal any commands from host. Please push the button to wakeup
module and send AT commands.
4.3. RESET button:
This button is connecting to PMU_SHUTDOWN pin for initiating power cycle that resets the
device or shutdowns device. (For reset function, please pull low button at least 100ms)
4.4. STATUS button:
This button is connecting to PMU_POWER_BUTTON pin and it can be used to either go into
power down mode when device is awake or waking up the device from low power mode.
While PMU_SHUTDOWN and PMU_WAKEUP cause an immediate action,
PMU_POWER_BUTTON reaction is not immediate and involves SW response.

TPM540 EVK
www.sercomm.com DOC-669671v1 10
Cat-M1/NB1 Module
5. LED status
5.1. Module_PWR1 LED:
For VCC status indication.
ON: VCC is present.
OFF: VCC is absent.
VCC is provided by 5V to 3.3V LDO.
5.2. Module_LED1:
This LED is controlled by PMU_EXT_ALARM pin, it can be used for alarming an external
host.
TBD
5.3. Module_LED2:
TBD