Modeling

Prepare model for hardware connection, add blocks to support hardware protocols

Prepare the model for hardware connection using STMicroelectronics Discovery boards, add blocks to support hardware protocols.

Support for STMicroelectronics^® Discovery™ boards will be removed in a future release.

You can migrate your models that use STM32F4-Discovery library blocks to use the blocks from the STM32F4xx based block libraries. For more information, see Migrate STMicroelectronics STM32F4-Discovery Blocks to STM32F4xx Based Library Blocks and STMCubeMX Workflow.

Blocks

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STMicroelectronics STM32F746G/STM32F769I-Discovery Board Blocks

System Core

Analog Input	Measure voltage of analog input pin
Digital Read	Read logical state of digital input pin
Digital Write	Set logical state of digital output pin
PWM Output	Generate square wave on the specified output pin
SCI Read	Read N-by-1 array of data on UART
SCI Write	Send N-by-1 array of data to UART
External Interrupt	Trigger the downstream function-call subsystem from an Interrupt Service Routine

Multimedia

Audio Input	Read audio sample from audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board
Audio Output	Send processed audio samples to audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board

Communication

I2C Controller Read	Read data from I2C Peripheral devices or I2C Peripheral devices register
I2C Controller Write	Write data to I2C peripheral devices or I2C peripheral devices register
SPI Controller Transfer	Write data to and read data from SPI peripheral devices
SPI Register Read	Read data from SPI peripheral devices register
SPI Register Write	Write data to registers of SPI peripheral devices
Modbus RS485 Client Read	Client device reads data from server device register(s) over RS485 network (Since R2021b)
Modbus RS485 Client Write	Client device writes data to server device register(s) over RS485 network (Since R2021b)
Modbus RS485 Server Write	Server device writes data to server device register over RS485 network (Since R2021b)
Modbus RS485 Server Read	Server device reads data from the server device register over RS485 network (Since R2021b)

Network

TCP Receive	Receive data over TCP/IP network from remote host
TCP Send	Send data over TCP/IP network to remote host
UDP Receive	Receive UDP packets from UDP host
UDP Send	Send UDP packets to UDP host

STMicroelectronics STM32L475VG-Discovery (B-L475E-IOT01A) Board Blocks

System Core

Audio Input	Read audio sample from audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board
Audio Output	Send processed audio samples to audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board
Digital Read	Read logical state of digital input pin
Digital Write	Set logical state of digital output pin
PWM Output	Generate square wave on the specified output pin
SCI Read	Read N-by-1 array of data on UART
SCI Write	Send N-by-1 array of data to UART
External Interrupt	Trigger the downstream function-call subsystem from an Interrupt Service Routine

Multimedia

Audio Input	Read audio sample from audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board
Audio Output	Send processed audio samples to audio devices on STMicroelectronics STM32F746G/STM32F769I–Discovery board

Communication

I2C Controller Read	Read data from I2C Peripheral devices or I2C Peripheral devices register
I2C Controller Write	Write data to I2C peripheral devices or I2C peripheral devices register
SPI Controller Transfer	Write data to and read data from SPI peripheral devices
SPI Register Read	Read data from SPI peripheral devices register
SPI Register Write	Write data to registers of SPI peripheral devices
Modbus RS485 Client Read	Client device reads data from server device register(s) over RS485 network (Since R2021b)
Modbus RS485 Client Write	Client device writes data to server device register(s) over RS485 network (Since R2021b)
Modbus RS485 Server Write	Server device writes data to server device register over RS485 network (Since R2021b)
Modbus RS485 Server Read	Server device reads data from the server device register over RS485 network (Since R2021b)

Network

TCP Receive	Receive data over TCP/IP network from remote host
TCP Send	Send data over TCP/IP network to remote host
UDP Receive	Receive UDP packets from UDP host
UDP Send	Send UDP packets to UDP host

Internet of Things

WiFi TCP Receive	Receive TCP/IP packets from another TCP/IP host on internet network
WiFi TCP Send	Send TCP/IP packets to another TCP/IP host on internet network
ThingSpeak Read	Read data stored in ThingSpeak channel
ThingSpeak Write	Publish data to Internet of Things using ThingSpeak

Sensors

HTS221 Humidity Sensor	Measure relative humidity and temperature from HTS221 sensor (Since R2025a)
LIS3MDL Magnetometer Sensor	Measure magnetic field strength and temperature from LIS3MDL Magnetometer sensor (Since R2025a)
LPS22HB Pressure Sensor	Measure barometric air pressure and temperature from LPS22HB sensor (Since R2025a)
LSM6DSL IMU Sensor	Measure linear acceleration, angular rate, and temperature from LSM6DSL sensor (Since R2025a)

Utilities Blocks

Byte Pack	Convert input signals to `uint8` vector
Byte Unpack	Convert `uint8` vector to input signals
Byte Reversal	Reverse order of bytes in input word
Memory Copy	Copy data from and to memory section

Model Settings

Model Configuration Parameters for STMicroelectronics STM32F4-Discovery Board

Model Configuration Parameters for STMicroelectronics STM32F746G-Discovery Board

Model Configuration Parameters for STMicroelectronics STM32F769I-Discovery Board

Model Configuration Parameters for STMicroelectronics STM32L475VG-Discovery (B-L475E-IOT01A) Board

Topics

Open Block Library for STM32 Microcontroller Blockset
Open Block Library STM32™ Microcontroller Blockset.
Configure Network Settings for STMicroelectronics Discovery Boards Ethernet Resource
Configure network settings for STMicroelectronics Discovery Boards Ethernet resource.
Log Signals on SD Card
Log signals from Simulink^® models on an SD card mounted on the target hardware.
Usage of Alternate Pin Names
Accessing multiple hardware peripherals connected to the same pin using alternate pin names.
Set Up and Configure Armclang Compiler Toolchain for Code Generation
Set up and configure Armclang compiler toolchain for code generation.

Featured Examples

Getting Started with Embedded Coder Support Package for STMicroelectronics Discovery Boards

Demonstrates how to use the Embedded Coder® Support Package for STMicroelectronics® STM32 Processors to run a Simulink® model on an STMicroelectronics STM32F4-Discovery, STM32F746G-Discovery, or STM32F769I-Discovery board.

Open Model

Code Optimization Using CMSIS DSP Library

Use code replacement libraries for ARM® Cortex®-M processors to generate optimized code for the STMicroelectronics® STM32F4-Discovery board using STM32™ Microcontroller Blockset.

Open Model

Push Button and LED

Use the GPIO blocks to control the push-button and the LED components by using the STM32™ Microcontroller Blockset.

Open Model

Parametric Audio Equalizer for STM32 Discovery Boards

Model a three band parametric equalizer algorithm and run it on the ARM® Cortex®-M based STMicroelectronics® STM32 Discovery boards using STM32™ Microcontroller Blockset.

Open Script

G.729 Voice Activity Detection for STM32 Processor Based Board

Model the ITU-T G.729 Voice Activity Detector (VAD) algorithm and run it on the ARM® Cortex®-M based STMicroelectronics® STM32 boards using STM32™ Microcontroller Blockset.

Open Script

Asynchronous Scheduling for STM32F4-Discovery Board

Model asynchronous scheduling using the Hardware Interrupt block for the STMicroelectronics® STM32F4xx processor board using Asynchronous Scheduling for STM32F4-Discovery Board using STM32™ Microcontroller Blockset.

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Exchanging Ethernet Data with STM32F746G Discovery Board

Use STM32™ Microcontroller Blockset to run on the STM32F746G Discovery Board to send and receive the UDP and TCP messages.

Open Model

Read Data from I2C-Based Sensors on STM32L475VG Discovery Board

Use the STM32™ Microcontroller Blockset to configure and read data from these sensors on the STM32L475VG Discovery (B-L475E-IOT01A) board:

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MODBUS RS485 Communication Between Client and Server Devices Using STMicroelectronics Discovery Board

Use the STM32™ Microcontroller Blockset to implement a MODBUS® RS485 asynchronous, serial communication between MODBUS client and server devices. The example also shows the four modes of operation: Client Read, Client Write, Server Read, and Server Write.

Open Model