STMicroelectronics UM2322, STM32 User Manual

March 2018 UM2322 Rev 2 1/22

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UM2322

User manual

STM32 Discovery pack for 2G/3G cellular to cloud

Introduction

The STM32 Discovery pack (P-L496G-CELL01) is a turnkey development platform for
cellular and cloud technology based solutions. The pack contains an STM32L496AGI6­based low-power Discovery mother board and an STMod+ Cellular 2G/3G worldwide
expansion board with antenna.

Figure 1. P-L496G-CELL01 (Top view)

1. Picture is not contractual.

www.st.com

Contents UM2322

2/22 UM2322 Rev 2

Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Development toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6 Technology partners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.1 Board layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.2 Cellular STMod+ expansion board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7.2.1 Modem power supply and reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.2.2 SIM selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.2.3 Modem firmware update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.3 Embedded ST_LINK/V2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

7.3.1 Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7.4 Mother board power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

7.4.1 Power supply sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7.5 Mother board reset sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7.6 Mother board boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Appendix A Expansion board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Appendix B Federal Communications Commission (FCC)

and Industry Canada (IC) Compliance . . . . . . . . . . . . . . . . . . . . . . . 20

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

UM2322 Rev 2 3/22

UM2322 List of tables

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List of tables

Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2. STMod+ connector pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 3. Boot settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 4. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

List of figures UM2322

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List of figures

Figure 1. P-L496G-CELL01 (Top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Mother board and expansion 2G/3G modem top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. Mother board and expansion 2G/3G modem bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4. USB Composite Device driver installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5. Expansion board top level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 6. Expansion board modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 7. Expansion board SIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 8. Expansion board STMod+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 9. Expansion board power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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UM2322 Features

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1 Features

• STM32L496AGI6 Arm®-based microcontroller featuring 1 Mbyte of Flash memory and
320 Kbytes of RAM in a UFBGA169 package

• USB OTG HS

• On-board current measurement

• SAI Audio CODEC

• ST-MEMS digital microphones

• 8-Mbit PSRAM

• 2 user LEDs

• 1 user and 1 reset push-buttons

• 4-direction joystick with selection button

• Board connectors:

– Camera 8 bit
– USB with Micro-AB
– Stereo headset jack including analog microphone input
– microSD™ card

• Board expansion connectors:
– Arduino™ Uno V3
–STMod+

• Board expansion features:
– Quectel UG96 worldwide cellular modem penta-band 2G/3G module, 7.2 Mbps

downlink, 5.76 Mbps uplink.
– Modem reset red LED and modem signaling green LED
– Switchable SIM interface, eSIM and micro SIM
– Pulse 2G/3G SMA antenna for frequency ranges: 824 / 900 / 1800 / 1900 / 2100 MHz

• Flexible power-supply options: ST-LINK, USB V

BUS

, or external sources

• On-board ST-LINK/V2-1 SWD,TAG debugger/programmer with USB re-enumeration
capability: mass storage, virtual COM port and debug port

• Comprehensive free software libraries and examples available with the STM32Cube
package

• Support of a wide choice of integrated development environments (IDEs) including IAR™,
Keil

®

, GCC-based IDEs

System requirements UM2322

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2 System requirements

• Windows® OS (7, 8 and 10), Linux® 64-bit or macOS

®

• USB Type-A to Micro-B cable

3 Development toolchains

• Keil® MDK-ARM

(a)

• IAR™ EWARM

(a)

• GCC-based IDEs including free SW4STM32 from AC6

4 Demonstration software

The demonstration software, included in the STM32Cube MCU Package, is preloaded in the
STM32 Flash memory for easy demonstration of the device peripherals in standalone mode.
The latest versions of the demonstration source code and associated documentation can be
downloaded from the www.st.com web page.

5 Ordering information

To order the P-L496G-CELL01 Discovery pack refer to Tab le 1.

a. On Windows® only

Table 1. Ordering information

Order code Target STM32

P-L496G-CELL01 STM32L496AGI6

UM2322 Rev 2 7/22

UM2322 Technology partners

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6 Technology partners

EMNIFY:

• IoT connectivity platform eSIM

QUECTEL:

• Worldwide LTE IoT EGPRS module

EXOSITE:

• Cloud data management

GROVESTREAMS:

• IoT platform