STMicroelectronics STM32L476 User Manual

June 2018 UM1879 Rev 4 1/41
1
UM1879
User manual
Discovery kit with STM32L476VG MCU
Introduction
The STM32L476 Discovery kit (32L476GDISCOVERY) helps the user to discover the
STM32L4 ultra-low-power features and to develop and share applications.
It is based on the STM32L476VGT6 microcontroller with three I
2
Cs, three SPIs, six
USARTs, CAN, SWPMI, two SAIs, 12-bit ADCs, 12-bit DAC, LCD driver, internal 128
Kbytes
of SRAM and 1
Mbyte of Flash memory, Quad-SPI, touch sensing, USB OTG FS, LCD
controller, FMC, JTAG debugging support.
The 32L476GDISCOVERY includes an ST-LINK/V2-1 embedded debugging tool interface,
LCD (24 segments, 4 commons), LEDs, push-button, joystick, USB OTG FS, audio DAC,
MEMS (microphone, 3-axis gyroscope, 6-axis compass), Quad-SPI Flash memory,
embedded ammeter measuring STM32 consumption in low-power mode.
External boards can be connected through the extension and probing connectors.
Figure 1. STM32L476 Discovery board
Picture is not contractual.
www.st.com

STMicroelectronics STM32L476 Specifications

General

Series	STM32L4
Core	ARM Cortex-M4
Core Size	32-bit
Max Clock Speed	80 MHz
Flash Memory	1 MB
SRAM	128 KB
DAC	12-bit
Operating Voltage	1.7 V to 3.6 V
Temperature Range	-40°C to 85°C
ADC	12-bit
Communication Interfaces	I2C, SPI, USB
Package / Case	LQFP, WLCSP
Timers	Up to 11 (16-bit and 32-bit)

Summary

Hardware layout and configuration

Embedded ST-LINK/V2-1

Details the on-board ST-LINK/V2-1 programming and debugging tool features and usage.

Power supply

Explains the four available power supply options and their configurations for the discovery board.

Clock source

Describes the MCU's low-speed and system clock sources and their configuration options.

Reset source

Lists the various sources that can trigger a reset on the STM32L476 Discovery board.

User interface: LCD, joystick, LEDs

Covers the board's user interface components: LEDs, joystick, and the LCD display.

Boot0 configuration

Guide on configuring the Boot0 pin for bootloader or application startup.

Quad-SPI NOR Flash memory

Information on the 128-Mbit Quad-SPI NOR Flash memory connected to the MCU.

USB OTG FS

Details the USB On-The-Go Full Speed interface and its operation.

USART configuration

Explains how to configure the USART interface for Virtual Com Port functionality.

Audio DAC and MEMS microphone

Describes the integrated audio DAC and MEMS microphone and their interfaces.

9-axis motion sensors

Details the gyroscope, accelerometer, and magnetometer sensors and their SPI connection.

I2C extension connector CN2

Provides the pinout and description for the I2C extension connector CN2.

MCU current ammeter

Instructions on using the built-in current ammeter to measure MCU consumption.

Extension connector P1 and P2

Lists the GPIO pins and functions available on extension connectors P1 and P2.

Solder bridges

Explains the function and default configuration of various solder bridges on the board.

Compliance statements

FCC Compliance Statement

FCC regulatory compliance statement for the device's operation and potential interference.

IC Compliance Statement

Industry Canada regulatory compliance statement, including RSS standards and exposure limits.