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Evaluation board for STM32L4R9AI MCU

STM32L4R9I-EVAL

Overview

The STM32L4R9I-EVAL evaluation board is designed as a complete demonstration and development platform for STMicroelectronics’ Arm^® Cortex^®-M4 core-based STM32L4R9AI microcontroller with: four I²C buses, three SPI and six USART ports, CAN port, two SAI ports, 12-bit ADC, 12-bit DAC, internal 640-Kbyte SRAM and 2-Mbyte Flash memory, two Octo-SPI memory interfaces, touch-sensing capability, USB OTG FS port,LCD-TFT controller, MIPI DSI host controller, flexible memory controller (FMC), 8- to 14-bit camera interface, and JTAG debugging support.

The full range of on-board hardware features helps the user to evaluate all the peripherals (USB, USART, digital microphones, ADC and DAC, TFT LCD, MIPI DSI LCD, LDR, SRAM, NOR Flash memory device, Octo-SPI Flash memory device, microSD card, sigma-delta modulators, CAN transceiver, EEPROM) and to develop applications. Extension headers allow easy connection of a daughterboard or wrapping board for a specific application.
An ST-LINK/V2-1 is integrated on the board, as an embedded in-circuit debugger and programmer for the STM32 MCU and the USB virtual COM port bridge.

Main features

STM32L4R9AII6 microcontroller with 2-Mbytes of Flash memory and 640-Kbytes of RAM in a UFBGA169 package
1.2” 390x390 pixel MIPI^® DSI round LCD
4.3” 480x272 pixel TFT LCD with RGB mode
Two ST-MEMS digital microphones
8-Gbyte microSD™ card bundled
16-Mbit (1 M x16 bit) SRAM device
128-Mbit (8 M x16 bit) NOR Flash memory
512-Mbit Octo-SPI Flash memory with double transfer rate (DTR) support
64-Mbit Octo-SPI SRAM memory with HyperBus interface support
EEPROM supporting 1 MHz I²C-bus communication speed
Reset and wakeup / tamper buttons
Joystick with four-way controller and selector
Touch-sensing button

Light-dependent resistor (LDR)
Potentiometer
Coin battery cell for power backup
Board connectors:
- Two jack outputs for stereo audio headphone with independent content
- Slot for microSD card supporting SD and SDHC
- TFT LCD standard connector
- MIPI DSI LCD standard connector
- EXT_I2C connector supports I²C bus
- RS-232 port configurable for communication or MCU flashing
- USB OTG FS Micro-AB port
- CAN 2.0A/B-compliant port
- Connector for ADC input and DAC output
- JTAG/SWD connector
- ETM trace debug connector
- User interface through USB virtual COM port
- Embedded ST-LINK/V2-1 debug and flashing facility TAG connector
- STDC14 connector
- PMOD connector
Board expansion connectors:
- motor-control module connector
- extension connector for daughterboard
Flexible power-supply options: power jack, ST-LINK/V2-1 USB connector, USB OTG FS connector, daughterboard
On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, virtual COM port and debug port
Microcontroller supply voltage: fixed 3.3 V or adjustable range from 1.71 V to 3.6 V
MCU current consumption measurement circuit
Access to comparator and operational amplifier of STM32L4R9AII6
Comprehensive free software libraries and examples available with the STM32Cube package
Support of a wide choice of integrated development environments (IDEs) including IAR™, Keil^® and GCC-based IDEs

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-20 12:08:36

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