STM32CubeMP2 Package

Applicable for

Unknown MPU, STM32MP25x lines

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This article introduces the structure and the content of the STM32CubeMP2 package, the embedded software part of STM32Cube™. This embedded software supports running on the Arm^® Cortex^®-M33 coprocessor and Arm^® Cortex^®-M0+ coprocessor present only on STM32MP25x lines . It references also other interesting wiki articles to better understand and use the STM32CubeMP2 package.

1. What is the STM32CubeMP2 package

STM32CubeMP2 Package, running on the Arm^® Cortex^®-M33 processor, consists of:

• The hardware abstraction layer (HAL), enabling portability between different STM32 devices via standardized API calls
• The low-layer API (LL), a light-weight, optimized, expert oriented set of APIs designed for runtime efficiency and so enhanced performance
• The board support package drivers (BSP), based on HAL drivers, an API set for the evaluation board and third-party components
• A collection of middleware components (such as FreeRTOS)
• A collection of examples, running on an MPU board and allowing demonstration of a basic implementation of features from a set of IPs

Information

The HAL, LL and BSP are equally applicable for [| Arm® Cortex®-M0+ coprocessor] which is present on STM32MP25x lines  only. This processor is ideal for low power applications and has access to small local memories. Middleware and FreeRTOS are not supported for it.

STM32CubeMP2 package uses components such as OpenAMP and ResourceManager that allow easy communication and resource sharing between main processors running with Linux on Arm^® Cortex^®-A35, and MCU coprocessors running on Arm^® Cortex^®-M33.

• OpenAMP is a library implementing the remote processor service framework (RPMsg) which is a virtio-based messaging bus that allows a local processor to communicate with remote processors available on the system.
• ResourceManager is a utility that handles peripheral-accessibility requests and system-resource configuration.

Information

Note: Refer to Coprocessor management overview for further information related to coprocessor management.

2. Software architecture overview

Software architecture overview is described in STM32CubeMP2 Package architecture.

3. STM32CubeMP2 Package structure

This chapter describes the structure of the STM32CubeMP2 Package (drivers, middleware components, etc.).

STM32CubeMP2 Package offers a highly portable hardware abstraction layer (HAL), built around a generic and modular architecture.

This HAL allows the upper layers, which are middleware and application, to implement functions whenever STM32MP25/23 device is used. This improves the library code reusability and guarantees easy portability from one device to another. STM32CubeMP2 Package also offers a highly portable low layer interface (LL), which allows a quick, simple, and optimized API to access the STM32MP2 registers.

The STM32CubeMP2 Package is provided with the structure shown below.

4. STM32CubeMP2 Package content

This chapter describes the content of the STM32CubeMP2 Package (drivers, middleware components, etc.).

4.1. Drivers

The Drivers folder contains all the STM32Cube Drivers, including BSP and HAL drivers.

The STM32CubeMP2 Package provides all driver user manuals:

• The BSP user manual for STM32MP257x-EV1 Evaluation board is available in Drivers/BSP/STM32MP257F-EV1/STM32MP257F-EV1_BSP_User_Manual.chm

• The BSP user manual for STM32MP257x-DK Discovery kit is available in Drivers/BSP/STM32MP257F-DK/STM32MP257F-DK_BSP_User_Manual.chm

• The HAL user manual is available in Drivers/STM32MP2xx_HAL_Driver/STM32MP257Cxx_CM33_User_Manual.chm

The following chapters give the list of available BSP, HAL, and LL drivers.

4.1.1. HAL drivers

STM32CubeMP2 HAL Driver items	Description	CM33	CM0+
ADC	* This driver provides firmware functions to manage the following * functionalities of the analog to digital convertor (ADC) * peripheral: * + Initialization and deinitialization functions * ++ Initialization and configuration of ADC * + Operation functions * ++ Start, stop, get result of conversions of regular * group, using 3 possible modes: polling, interruption or DMA. * + Control functions * ++ Channels configuration on regular group * ++ Analog watchdog configuration * + State functions * ++ ADC state machine management * ++ Interrupts and flags management	YES	NO
ADC_EX	* This driver provides firmware functions to manage the following * extended functionalities of the analog to digital convertor (ADC) * peripheral: * + Operation functions * ++ Start, stop, get result of conversions of ADC group injected, * using 2 possible modes: polling, interruption. * ++ Calibration * +++ ADC automatic self-calibration * +++ Calibration factors get or set * ++ Multimode feature when available * + Control functions * ++ Channels configuration on ADC group injected * + State functions * ++ ADC group injected contexts queue management	YES	NO
BSEC	* This driver provides firmware functions to manage the following * functionalities of the boot and security and OTP control(BSEC) peripheral: * + Initialization and deinitialization functions * + Peripheral control functions * + Peripheral state functions	YES	NO
CRC	* This driver provides firmware functions to manage the following * functionalities of the cyclic redundancy check (CRC) peripheral: * + Initialization and deinitialization functions * + Peripheral control functions * + Peripheral state functions * + Extended features functions	YES	NO
CRYP	* This driver provides firmware functions to manage the following * functionalities of the cryptography (CRYP) peripheral: * + Initialization and deinitialization functions * + AES processing functions * + DES processing functions * + TDES processing functions * + DMA callback functions * + CRYP IRQ handler management * + Peripheral state functions	YES	NO
CRYP_EX	* This driver provides firmware functions to manage the following * functionalities of CRYP extension peripheral: * + Extended AES processing functions	YES	NO
DCACHE	* This file provides firmware functions to manage the following * functionalities of the DCACHE. * + Initialization and configuration * + Cache coherency command * + Monitoring management	YES	NO
DCMI	* This file provides firmware functions to manage the following * functionalities of the digital camera interface (DCMI) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and error functions	YES	NO
DCMIPP	* This driver provides firmware functions to manage the following * functionalities of the DCMIPP (digital camera interface pixel pipeline) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and error functions	YES	NO
DMA	* This driver provides firmware functions to manage the following * functionalities of the direct memory access (DMA) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	YES
DMA_EX	* This driver provides firmware functions to manage the following * functionalities of the DMA extension peripheral: * + Extended features functions	YES	NO
DSI	* This file provides firmware functions to manage the following * functionalities of the DSI peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and errors functions	YES	NO
ETH	* This driver provides firmware functions to manage the following * functionalities of the Ethernet (ETH) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and errors functions	YES	NO
EXTI	* This driver provides firmware functions to manage the following * functionalities of the general purpose input/output (EXTI) peripheral: * + Initialization and deinitialization functions * + I/O operation functions	YES	YES
FDCAN	* This driver provides firmware functions to manage the following * functionalities of the flexible datarate controller area network * (FDCAN) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral configuration and control functions * + Peripheral state and error functions	YES	NO
GPIO	* This driver provides firmware functions to manage the following * functionalities of the general purpose input/output (GPIO) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Extended peripheral control functions	YES	YES
HAL	* This driver provides firmware functions to manage the following * functionalities of HAL, Tick, SYSCFG, DBGMCU: * + Initialization and deinitialization functions * + HAL initialization and deinitialization functions * + Configure the source of the time base * + HAL control functions * + Tick management (get/set/inc/priority/suspend/resume) * + Get HAL revision, the device revision identifier, the device identifier * + Enable/disable DBG wake up on AIEC * + Enable/disable the debug module during Domain1 SLEEP mode * + Enable/Disable the debug module during Domain1 STOP mode * + Enable/Disable the debug module during Domain1 STANDBY mode * + Configure the internal voltage reference buffer voltage scale * + Configure the internal voltage reference buffer high impedance mode * + Tune the internal voltage reference buffer (VREFBUF) * + Enable/disable the internal voltage reference buffer (VREFBUF) * + Ethernet PHY interface selection either MII or RMII * + Analog switch control for dual analog pads * + Enable/disable the booster to reduce the total harmonic distortion of the analog * + Enable/power-down the I/O compensation cell * + To Enable/disable optimize the I/O speed when the product voltage is low * + Code selection for the I/O compensation cell	YES	YES
HASH	* This driver provides firmware functions to manage the following * functionalities of the HASH peripheral: * + Initialization and deinitialization methods * + HASH or HMAC processing in polling mode * + HASH or HMAC processing in interrupt mode * + HASH or HMAC processing in DMA mode * + Peripheral state methods * + HASH or HMAC processing suspension/resumption	YES	NO
HASH_EX	* This driver provides firmware functions to manage the following * functionalities of the HASH peripheral for SHA-224 and SHA-256 * algorithms: * + HASH or HMAC processing in polling mode * + HASH or HMAC processing in interrupt mode * + HASH or HMAC processing in DMA mode * Additionally, this file provides functions to manage HMAC * multibuffer DMA-based processing for MD-5, SHA-1, SHA-224 * and SHA-256.	YES	NO
HSEM	* This file provides firmware functions to manage the following * functionalities of the semaphore peripheral: * + Semaphore take function (2-Step procedure) , non blocking * + Semaphore fastTake function (1-Step procedure) , non blocking * + Semaphore status check * + Semaphore clear key set and get * + Release and release all functions * + Semaphore notification enabling and disabling and callback functions * + IRQ handler management	YES	YES
ICACHE	* This file provides firmware functions to manage the following * functionalities of the instruction cache (ICACHE). * + Initialization and configuration * + Invalidate functions * + Monitoring management * + Memory address remap management	YES	NO
IPCC	* This file provides firmware functions to manage the following * functionalities of the inter-processor communication controller * peripherals (IPCC). * + Initialization and deinitialization functions * + Configuration, notification, and interrupts handling * + Peripheral state and error functions	YES	YES
I2C	* This driver provides firmware functions to manage the following * functionalities of the inter integrated circuit (I2C) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	YES
I2C_EX	* This driver provides firmware functions to manage the following * functionalities of I2C extended peripheral: * + Filter mode functions * + WakeUp mode functions * + FastModePlus functions	YES	YES
I2S	* This file provides firmware functions to manage the following * functionalities of the integrated interchip sound (I2S) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	NO
I3C	* This file provides firmware functions to manage the following * functionalities of the improvement inter integrated circuit (I3C) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	YES
IWDG	* This file provides firmware functions to manage the following * functionalities of the independent watchdog (IWDG) peripheral: * + Initialization and start functions * + I/O operation functions	YES	YES
LPTIM	* This driver provides firmware functions to manage the following * functionalities of the low power timer (LPTIM) peripheral: * + Initialization and deinitialization functions. * + Start/Stop operation functions in polling mode. * + Start/Stop operation functions in interrupt mode. * + Reading operation functions. * + Peripheral state functions.	YES	YES
LTDC	* This file provides firmware functions to manage the following * functionalities of the LTDC peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and errors functions	YES	NO
MMC	* This driver provides firmware functions to manage the following * functionalities of the secure digital (MMC) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + MMC card control functions	YES	NO
MMC_EX	* This driver provides firmware functions to manage the following * functionalities of the secure digital (MMC) peripheral: * + Extended features functions	YES	NO
PKA	* This driver provides firmware functions to manage the following * functionalities of public key accelerator (PKA): * + Initialization and deinitialization functions * + Start an operation * + Retrieve the operation result	YES	NO
PSSI	* This file provides firmware functions to manage the following * functionalities of the parallel synchronous slave interface (PSSI) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	NO
PWR	* This driver provides firmware functions to manage the following * functionalities of the power controller (PWR) peripheral: * + Initialization and deinitialization functions * + Peripheral control functions * + Peripheral extended features functions	YES	NO
PWR_EX	* This driver provides firmware functions to manage the following * functionalities of PWR extension peripheral: * + Peripheral extended features functions	YES	NO
OSPI	* This driver provides firmware functions to manage the following * functionalities of the OSPI interface (OSPI). * + Initialization and deinitialization functions * + Indirect functional mode management * + Memory-mapped functional mode management * + Auto-polling functional mode management * + Interrupt and flag management * + HPDMA channel configuration for indirect functional mode * + Error management and abort functionality	YES	NO
RAMCFG	* This file provides firmware functions to manage the following * functionalities of the RAM configuration controller peripheral: * + RAMCFG initialization and deinitialization functions. * + RAMCFG ECC operation functions. * + RAMCFG CRC operation functions. * + RAMCFG configure wait state functions. * + RAMCFG write protection functions. * + RAMCFG erase operation functions. * + RAMCFG handle interrupt and callbacks functions. * + RAMCFG state and error functions.	YES	NO
RCC	* This driver provides firmware functions to manage the following * functionalities of the reset and clock control (RCC) peripheral: * + Initialization and deinitialization functions * + Peripheral control functions * + Extended peripheral control functions	YES	NO
RCC_EX	* This driver provides firmware functions to manage the following * functionalities RCC extension peripheral: * + Extended peripheral control functions	YES	NO
RIF	* This file provides firmware functions to manage the following * functionalities of RIF: * + RISC initialization and configuration functions * + IAC initialization and configuration functions	YES	NO
RNG	* This driver provides firmware functions to manage the following * functionalities of the random number generator (RNG) peripheral: * + Initialization and configuration functions * + Peripheral control functions * + Peripheral state functions	YES	NO
RNG_EX	* This driver provides firmware functions to manage the following * functionalities of the random number generator (RNG) peripheral: * + Lock configuration functions * + Reset the RNG	YES	NO
RTC	* This driver provides firmware functions to manage the following * functionalities of the real-time clock (RTC) peripheral: * + Initialization/deinitialization functions * + Calendar (time and date) configuration * + Alarms (alarm A and alarm B) configuration * + WakeUp timer configuration * + TimeStamp configuration * + Tampers configuration * + Backup data register configuration * + RTC tamper and timeStamp pins selection * + Interrupts and flags management	YES	YES
RTC_EX	* This driver provides firmware functions to manage the following * functionalities of the real time clock (RTC) extended peripheral: * + RTC time stamp functions * + RTC tamper functions * + RTC wakeup functions * + Extended control functions * + Extended RTC features functions	YES	YES
SAI	* This driver provides firmware functions to manage the following * functionalities of the serial audio interface (SAI) peripheral: * + Initialization/deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state functions	YES	NO
SAI_EX	* This driver provides firmware functions to manage the following * functionality of the SAI peripheral controller: * + Modify PDM microphone delays.	YES	NO
SD	* This driver provides firmware functions to manage the following * functionalities of the secure digital (SD) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state functions	YES	NO
SD_EX	* This driver provides firmware functions to manage the following * functionalities of the secure digital (SD) peripheral: * + Extended features functions	YES	NO
SMARTCARD	* This driver provides firmware functions to manage the following * functionalities of the smartcard peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and error functions * + Extended features functions	YES	NO
SMARTCARD_EX	* This driver provides extended firmware functions to manage the following * functionalities of the smartCard. * + Initialization and deinitialization functions * + Peripheral control functions	YES	NO
SMBUS	* This driver provides firmware functions to manage the following * functionalities of the system management bus (SMBus) peripheral, * based on I2C principles of operation : * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral state and errors functions	YES	NO
SPDIFRX	* This driver provides firmware functions to manage the following * functionalities of the SPDIFRX audio interface: * + Initialization and configuration * + Data transfers functions * + DMA transfers management * + Interrupts and flags management	YES	NO
SPI	* This driver provides firmware functions to manage the following * functionalities of the serial peripheral interface (SPI) peripheral: * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state functions	YES	YES
SPI_EX	* This driver provides firmware functions to manage the following * SPI peripheral extended functionalities : * + I/O operation functions * + Peripheral control functions	YES	YES
FMC_SRAM	* This driver provides a generic firmware to drive SRAM memories * mounted as external device.	YES	NO
FMC_NAND	* This driver provides a generic firmware to drive NAND memories * mounted as external device.	YES	NO
TIMER	* This driver provides firmware functions to manage the following * functionalities of the timer (TIM) peripheral: * + TIM time base initialization * + TIM time base start * + TIM time base start interruption * + TIM time base start DMA * + TIM output compare/PWM initialization * + TIM output compare/PWM channel configuration * + TIM output compare/PWM start * + TIM output compare/PWM start interruption * + TIM output compare/PWM start DMA * + TIM input capture initialization * + TIM input capture channel configuration * + TIM input capture start * + TIM input capture start interruption * + TIM input capture start DMA * + TIM one pulse initialization * + TIM one pulse channel configuration * + TIM one pulse start * + TIM encoder interface initialization * + TIM encoder interface start * + TIM encoder interface start interruption * + TIM encoder interface start DMA * + Commutation event configuration with interruption and DMA * + TIM OCRef clear configuration * + TIM external clock configuration	YES	YES
TIMER_EX	* This driver provides firmware functions to manage the following * functionalities of the timer extended peripheral: * + Time hall sensor interface initialization * + Time hall sensor interface start * + Time complementary signal break and dead time configuration * + Time controller and receiver synchronization configuration * + Time output compare/PWM channel configuration (for channels 5 and 6) * + Timer remapping capabilities configuration	YES	YES
UART	* This driver provides firmware functions to manage the following * functionalities of the universal asynchronous receiver transmitter peripheral (UART). * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions	YES	YES
UART_EX	* This driver provides firmware functions to manage the following extended * functionalities of the universal synchronous receiver transmitter peripheral (USART). * + Peripheral control functions	YES	YES
U(S)ART	* This driver provides firmware functions to manage the following * functionalities of the universal (synchronous) asynchronous receiver transmitter * peripheral (U(S)ART). * + Initialization and deinitialization functions * + I/O operation functions * + Peripheral control functions * + Peripheral state and error functions * + Peripheral control functions	YES	NO

4.1.2. LL drivers

STM32CubeMP2 LL Driver items	Description	CM33	CM0+
ADC	* This driver provides firmware functions to manage the following * functionalities of the ADC peripheral: * + Initialization/deinitialization functions * + Configuration functions (ADC instance, group regular, group injected, * channels, analog watchdog, oversampling, multimode) * + IT/FLAGS management functions	YES	NO
DELAYBLOCK	* This file provides firmware functions to manage the following * functionalities of the DelayBlock peripheral: * + input clock frequency * + up to 12 oversampling phases	YES	NO
DMA	* This driver provides firmware functions to manage the following * functionalities of the DMA peripheral: * + Initialization/deinitialization functions * + Configuration functions * + IT/FLAGS management functions	YES	YES
EXTI	* This driver provides firmware functions to manage the following * functionalities of the EXTI peripheral: * + Initialization/deinitialization functions * + IT/FLAGS/Trigger management functions * + Configuration functions	YES	YES
FMC	* This driver provides firmware functions to manage the following * functionalities of the flexible memory controller (FMC) peripheral memories: * + Initialization/deinitialization functions * + Peripheral control functions * + Peripheral state functions	YES	NO
GPIO	* This driver provides firmware functions to manage the following * functionalities of the GPIO peripheral: * + Initialization/de-initialization functions * + Data access functions * + Port configuration functions	YES	YES
I2C	* This driver provides firmware functions to manage the following * functionalities of the I2C peripheral: * + Initialization/deinitialization functions * + IT/FLAGS management functions * +Data management functions * + Configuration functions	YES	YES
LPTIM	* This driver provides firmware functions to manage the following * functionalities of the LPTIM peripheral: * + Initialization/deinitialization functions * + IT/FLAGS management functions * + Configuration (Trigger / Clock / Encoder / LPTIM) functions	YES	YES
DMA	* This driver provides firmware functions to manage the following * functionalities of the Direct Memory Access (DMA) peripheral: * + Channel management functions (Instance, block, buffer, endianess etc) * + SRC/DES operation functions * + Hardware trigger control	YES	YES
PWR	* This driver provides firmware functions to manage the following * functionalities of the PWR peripheral: * + Deinitialization functions	YES	NO
RCC	* This driver provides firmware functions to manage the following * functionalities of the RCC peripheral: * + Clocks management functions (HSE/HSI/CSI/LSE/LSI/MCO/PLL) * + RTC/TIMERS functions * + IT/FLAGS management functions * + Deinitialization functions * + Get system and peripherals clocks frequency functions	YES	NO
RTC	* This driver provides firmware functions to manage the following * functionalities of the RTC peripheral: * + Initialization/deinitialization functions * + TIME/DATE/ALM functions * + Configuration functions	YES	YES
SDMMC	* This driver provides firmware functions to manage the following * functionalities of the SDMMC peripheral: * + Initialization/de-initialization functions * + IT/FLAGS management functions * + Data / DMA management functions * + Configuration functions	YES	NO
SPI	* This driver provides firmware functions to manage the following * functionalities of the SPI peripheral: * + Control and configuration functions	YES	YES
TIM	* This driver provides firmware functions to manage the following * functionalities of the TIM peripheral: * + Initialization/deinitialization functions * + Configuration functions (Time base, capture compare, output and input channel, * timer synchro, break, DMA burst mode ) * + Counter clock selection functions * + Timer input remapping functions * + IT/FLAGS management functions * + DMA management functions * + Event management functions	YES	NO
USART	* This driver provides firmware functions to manage the following * functionalities of the USART peripheral: * + Initialization/deinitialization functions * + Configuration functions (Irda, smartcard, half duplex, * SPI slave, LIN, Driver enable) * + Advanced configurations services functions * + IT/FLAGS management functions * + DMA management functions * + Data management functions * + Execution functions	YES	NO

4.1.3. BSP drivers

The BSP drivers offer a set of APIs relative to the hardware components available in the hardware boards (LEDs, Buttons and COM port). STM32MP257x-EV1 Evaluation board , STM32MP257x-DK Discovery kit and  unknown board type identifier .

 Drivers/BSP/
├── STM32MP235F-DK
│   ├── stm32mp235f_disco_bus.c
│   ├── stm32mp235f_disco_bus.h
│   ├── stm32mp235f_disco.c
│   ├── stm32mp235f_disco_conf_template.h
│   ├── stm32mp235f_disco_errno.h
│   ├── stm32mp235f_disco.h
│   ├── stm32mp235f_disco_pmic.c
│   ├── stm32mp235f_disco_pmic.h
│   ├── stm32mp235f_disco_usbpd_pwr.c
│   └── stm32mp235f_disco_usbpd_pwr.h
├── STM32MP257F-DK
│   ├── stm32mp257f_disco_bus.c
│   ├── stm32mp257f_disco_bus.h
│   ├── stm32mp257f_disco.c
│   ├── stm32mp257f_disco_camera.c
│   ├── stm32mp257f_disco_camera.h
│   ├── stm32mp257f_disco_conf_template.h
│   ├── stm32mp257f_disco_errno.h
│   ├── stm32mp257f_disco.h
│   ├── stm32mp257f_disco_pmic.c
│   ├── stm32mp257f_disco_pmic.h
│   ├── stm32mp257f_disco_usbpd_pwr.c
│   ├── stm32mp257f_disco_usbpd_pwr.h
└── STM32MP257F-EV1
    ├── stm32mp257f_eval_bus.c
    ├── stm32mp257f_eval_bus.h
    ├── stm32mp257f_eval.c
    ├── stm32mp257f_eval_camera.c
    ├── stm32mp257f_eval_camera.h
    ├── stm32mp257f_eval_conf_template.h
    ├── stm32mp257f_eval_errno.h
    ├── stm32mp257f_eval.h
    ├── stm32mp257f_eval_lcd.c
    ├── stm32mp257f_eval_lcd.h
    ├── stm32mp257f_eval_pmic.c
    ├── stm32mp257f_eval_pmic.h
    ├── stm32mp257f_eval_usbpd_pwr.c
    └── stm32mp257f_eval_usbpd_pwr.h

BSP Components are external components which can be attached toSTM32MP257x-EV1 Evaluation board and STM32MP257x-DK Discovery kit .

STM32CubeMP2 BSP Component Items	Description
Common	This directory contains the BSP common components drivers.
STPMIC2	This driver provides a set of functions needed to drive STPMIC2 PMU module.
TCPP0203	This driver provides a set of functions needed to drive TCPP02/03 (TCPP: Type-C port protection is a companion chip to safely comply with USB-type C specification for power delivery).

4.2. Middlewares

The Middlewares folder contains all available STM32Cube Middlewares including:

• FreeRTOS
• OpenAMP
• STM32_USBPD_Library

Information

Note: Refer to Description of Middlewares to get description of middlewares available in STM32CubeMP2 Package.

4.3. Projects

The "Projects" folder contains all STM32Cube examples that are classified in 3 ways as described below :

• Examples: It uses only the HAL drivers without any middleware component. They are available in directory Projects/<board_name>/Examples.
• Applications: It provides typical use cases of each middleware component. They are available in directory Projects/<board_name>/Applications.
• Demonstrations: This program demonstrates the USBPD stack. Directory Projects/<board_name>/Demonstrations.

The list of projects is available here.Projects/STM32CubeProjectsList.html

4.3.1. Examples, applications, and demonstrations

4.3.1.1. Applications, Examples, Demonstrations for STM32MP257F-EV1

Projects/STM32MP257F-EV1/
├── Applications
│   ├── FreeRTOS
│   │   ├── FreeRTOS_MsgQueue
│   │   ├── FreeRTOS_Semaphore
│   │   └── FreeRTOS_ThreadCreation
│   ├── OpenAMP
│   │   └── OpenAMP_TTY_echo
│   ├── TFM
│   │   └── TFM_Protected_Storage
│   └── USBPD
│       └── USBPD_DRP_UCSI
├── Demonstrations
│   ├── CM0PLUS_DEMO
│   ├── LowPower_SRAM_Demo
│   └── USBPD_DRP_UCSI
├── Examples
│   ├── ADC
│   │   ├── ADC_DifferentialMode
│   │   ├── ADC_InternalChannelConversion
│   │   ├── ADC_OverSampler
│   │   └── ADC_RegularConversion_Polling
│   ├── CORTEX
│   │   └── CORTEXM_ModePrivilege
│   ├── CRC
│   │   ├── CRC_Bytes_Stream_7bit_CRC
│   │   └── CRC_UserDefinedPolynomial
│   ├── CRYP
│   │   ├── CRYP_AES_DMA
│   │   └── CRYP_AESGCM
│   ├── DMA
│   │   ├── DMA_LinkedList
│   │   └── DMA_RepeatedBlock
│   ├── FDCAN
│   │   ├── FDCAN_Classic_Frame_Networking
│   │   ├── FDCAN_Com_IT
│   │   └── FDCAN_Loopback
│   ├── GPIO
│   │   └── GPIO_EXTI
│   ├── I2C
│   │   ├── I2C_TwoBoards_ComDMA
│   │   └── I2C_TwoBoards_ComPolling
│   ├── I3C
│   │   ├── I3C_Controller_I2C_ComDMA
│   │   └── I3C_Target_I2C_ComDMA
│   ├── LPTIM
│   │   └── LPTIM_PulseCounter
│   ├── LTDC
│   │   └── LTDC_Display_3rdLayer
│   ├── SPI
│   │   └── SPI_FullDuplex_ComDMA
│   └── TIM
│       ├── TIM_DMABurst
│       ├── TIM_OnePulse
│       ├── TIM_PWMOutput
│       └── TIM_TimeBase
├── Examples_LL
│   ├── EXTI
│   │   └── EXTI_ToggleLedOnIT_Init
│   ├── TIM
│   │   └── TIM_PWMOutput
│   └── USART
│       └── USART_Communication_Rx_IT
├── Templates
│   └── Template_CM33_NonSecure
└── Templates_LL
    └── Template_LL_CM33_NonSecure

4.3.1.2. Applications, Examples, Demonstrations for STM32MP257F-DK

Projects/STM32MP257F-DK/
├── Applications
│   ├── FreeRTOS
│   │   ├── FreeRTOS_ThreadCreation
│   │   └── FreeRTOS_Timers
│   ├── OpenAMP
│   │   └── OpenAMP_TTY_echo
│   └── USBPD
│       └── USBPD_DRP_UCSI
├── Demonstrations
│   └── USBPD_DRP_UCSI
├── Examples
│   ├── CORTEX
│   │   └── CORTEXM_ModePrivilege
│   ├── CRC
│   │   └── CRC_Bytes_Stream_7bit_CRC
│   ├── CRYP
│   │   └── CRYP_AESCCM_IT
│   ├── DMA
│   │   ├── DMA_LinkedList
│   │   └── DMA_RepeatedBlock
│   ├── GPIO
│   │   └── GPIO_EXTI
│   ├── I2C
│   │   └── I2C_TwoBoards_ComIT
│   ├── I3C
│   │   ├── I3C_Controller_InBandInterrupt_IT
│   │   └── I3C_Target_InBandInterrupt_IT
│   ├── LPTIM
│   │   └── LPTIM_PulseCounter
│   └── TIM
│       └── TIM_InputCapture
├── Examples_LL
│   └── USART
│       └── USART_Communication_Rx_IT
└── Templates
    └── Template_CM33_NonSecure

4.3.1.3. Applications, Examples, Demonstrations for STM32MP235F-DK

Important

To help you get started with the evaluation of the STM32MP23x product lines, you can rely on the STM32MP257F-DK Discovery kit, and the applicable STM32 MPU embedded software, running with the STM32MP23 software configuration (peripherals, features, and performance).

Projects/STM32MP235F-DK/
├── Applications
│   ├── FreeRTOS
│   │   ├── FreeRTOS_ThreadCreation
│   │   └── FreeRTOS_Timers
│   └── USBPD
│       └── USBPD_DRP_UCSI
├── Demonstrations
│   └── USBPD_DRP_UCSI
├── Examples
│   ├── CORTEX
│   │   └── CORTEXM_ModePrivilege
│   ├── CRC
│   │   └── CRC_Bytes_Stream_7bit_CRC
│   ├── CRYP
│   │   └── CRYP_AESCCM_IT
│   ├── DMA
│   │   ├── DMA_LinkedList
│   │   └── DMA_RepeatedBlock
│   ├── GPIO
│   │   └── GPIO_EXTI
│   ├── I2C
│   │   └── I2C_TwoBoards_ComIT
│   ├── I3C
│   │   └── I3C_Controller_InBandInterrupt_IT
│   ├── LPTIM
│   │   └── LPTIM_PulseCounter
│   └── TIM
│       └── TIM_InputCapture
├── Examples_LL
│   └── USART
│       └── USART_Communication_Rx_IT
└── Templates
    └── Template_CM33_NonSecure

4.3.1.4. Brief description of all applications/examples part of the package

Type	Module Name	Project Name	Description	STM32MP257F-EV1	STM32MP257F-DK	unknown board type identifier	Mode	Core
Demonstrations	USBPD	USBPD_DRP_UCSI	Demonstrate usage of STM32MP25xx Cortex-M33 as a UCSI (USB Type-CTM Connector System Software Interface) Platform Policy Manager(PPM). The PPM is a combination of hardware and firmware that manages the USB Type-C connectors on the platform. The Cortex-A35 has a role of UCSI OS Policy Manager to interface with the PPM, via OpenAMP-rpmsg Virtual I2C with the UCSI interface.	x	x	x	Production	Arm® Cortex®-M33
	CM0	CM0PLUS Demo	Shows usage of Cortex-M0 exercising the LPUART (part of SmartRun Domain) while interacting with Cortex A35 through IPCC.	x	-	-	Production	Arm® Cortex®-M0+
	LowPower	LowPowerSRAM_Demo	A demonstration showing transition of CPU subsystems and power domains into low power states.	x	-	-	Production	Arm® Cortex®-M33
Templates	CM33 NS	Template_CM33_NonSecure	A template example that use HAL drivers which you can build upon to create your own examples.	x	x	x	Production	Arm® Cortex®-M33
Templates_LL	CM33 NS	Template_LL_CM33_NonSecure	A template example that use LL drivers which you can build upon to create your own examples.	x	x	x	Production	Arm® Cortex®-M33
Applications	FreeRTOS	FreeRTOS_MsgQueue	Demonstrate MsgQueue API	x	-	-	Production	Arm® Cortex®-M33
		FreeRTOS_ThreadCreation	How to implement thread creation using CMSIS RTOS API.	x	x	x	Production	Arm® Cortex®-M33
		FreeRTOS_Semaphore	How to use semaphores with CMSIS RTOS API	x	-	-	Production	Arm® Cortex®-M33
		FreeRTOS_Timers	How to use timers of CMSIS RTOS API.	-	x	x	Production	Arm® Cortex®-M33
	USBPD	USBPD_DRP_UCSI	Demonstrate usage of STM32MP25xx Cortex-M33 as a UCSI (USB Type-CTM Connector System Software Interface) Platform Policy Manager(PPM). The PPM is a combination of hardware and firmware that manages the USB Type-C connectors on the platform. The Cortex-A35 has a role of UCSI OS Policy Manager to interface with the PPM, via OpenAMP-rpmsg Virtual I2C with the UCSI interface.	x	x	x	Production	Arm® Cortex®-M33
	TFM	TFM_Protected_Storage	It demonstrates an example of Protected Storage API (PSA) usage provided by the trusted firmware (TFM) middleware.	x	-	-	Production	Arm® Cortex®-M33
	OpenAMP	OpenAMP_TTY_echo	It demonstrates How to use OpenAMP MW + Virtual UART to create an Inter-Processor Communication channel seen as TTY device in Linux OS.	x	x	-	Production	Arm® Cortex®-M33
Examples_LL	USART	USART_Communication_Rx_IT	Use of a timer peripheral to generate a PWM output signal and update the PWM duty cycle. This example is based on the STM32MP2xx TIM LL API. The peripheral initialization uses LL unitary service functions for optimization purposes (performance and size).	x	x	x	Production	Arm® Cortex®-M33
	EXTI	EXTI_ToggleLedOnIT_Init	How to configure the EXTI and use GPIOs to toggle the user LEDs available on the board when a user button is pressed. This example is based on the STM32MP2xx LL API. The peripheral initialization uses LL initialization functions to demonstrate LL init usage.	x	x	x	Production	Arm® Cortex®-M33
	TIM	TIM_PWMOutput	Use of a timer peripheral to generate a PWM output signal and update the PWM duty cycle. This example is based on the STM32MP2xx TIM LL API. The peripheral initialization uses LL unitary service functions for optimization purposes (performance and size).	x	x	x	Production	Arm® Cortex®-M33
Examples	I3C	I3C_Controller_I2C_ComDMA	How to handle I2C communication as I3C Controller data buffer transmission/reception between two boards, using DMA.	x	-	-	Production	Arm® Cortex®-M33
		I3C_Target_I2C_ComDMA	Handle I2C data buffer transmission/reception between two boards, using DMA.	x	-	-	Production	Arm® Cortex®-M33
		I3C_Controller_InBandInterrupt_IT	How to handle an In-Band-Interrupt event between an I3C Controller and I3C Targets	-	x	x	Production	Arm® Cortex®-M33
		I3C_Target_InBandInterrupt_IT	How to handle I2C communication as I3C Controller data buffer transmission/reception between two boards, using DMA.	-	x	-	Production	Arm® Cortex®-M33
	SPI	SPI_FullDuplex_ComDMA	This example shows how to perform SPI data buffer transmission/reception between two boards via DMA.	x	x	x	Production	Arm® Cortex®-M33
	LPTIM	LPTIM_PulseCounter	This example describes how to configure and use LPTIM to count pulses through the LPTIM HAL API.	x	x	x	Production	Arm® Cortex®-M33
	CORTEXM	CORTEXM_ModePrivilege	How to modify the Thread mode privilege access and stack. Thread mode is entered on reset or when returning from an exception.	x	x	x	Production	Arm® Cortex®-M33
	GPIO	GPIO_EXTI	How to configure external interrupt lines.	x	x	x	Production	Arm® Cortex®-M33
	I2C	I2C_TwoBoards_ComDMA	How to handle I2C data buffer transmission/reception between two boards, via DMA.	x	-	-	Production	Arm® Cortex®-M33
		I2C_TwoBoards_ComPolling	How to handle I2C data buffer transmission/reception between two boards, via Polling.	x	-	-	Production	Arm® Cortex®-M33
		I2C_TwoBoards_ComIT	I2C data buffer transmission/reception between two boards, via Interrupt.	-	x	x	Production	Arm® Cortex®-M33
	CRC	CRC_Bytes_Stream_7bit_CRC	Configure and use CRC HAL API to calculate 7 bit CRC	x	x	x	Production	Arm® Cortex®-M33
		CRC_UserDefinedPolynomial	Compute CRC on a buffer using a User defined polynomial	x			Production	Arm® Cortex®-M33
	CRYP	CRYP_AESGCM	How to use the CRYPTO peripheral to encrypt/decrypt data(Plaintext/Ciphertext) using AES Galois/counter mode (GCM)and generate the authentication TAG.	x	-	-	Production	Arm® Cortex®-M33
		CRYP_AES_DMA	This example provides a short description of how to use the CRYPTO peripheral to encrypt and decrypt data using AES-128 Algorithm with ECB chaining mode	x	-	-	Production	Arm® Cortex®-M33
		CRYP_AESCCM_IT	How to use the CRYPTO peripheral to encrypt/decrypt data(Plaintext/Ciphertext) using cipher block chaining-message authentication code (CCM) mode (CCM)	-	x	x	Production	Arm® Cortex®-M33
	DMA	DMA_LinkedList	How to use the DMA to perform a list of transfers. The transfer list is organized as linked-list, each time the current transfer ends the DMA automatically reload the next transfer parameters, and starts it (without CPU intervention).	x	x	x	Production	Arm® Cortex®-M33
		DMA_RepeatedBlock	This example describes how to configure and use the DMA HAL API to perform repeated block transactions.	x	x	x	Production	Arm® Cortex®-M33
	FDCAN	FDCAN_Classic_Frame_Networking	Configure the FDCAN peripheral to send and receive Classic CAN frames in normal mode.	x	-	-	Production	Arm® Cortex®-M33
		FDCAN_Com_IT	Demonstrate Interrupt Process Communication between two FDCAN units	x	-	-	Production	Arm® Cortex®-M33
		FDCAN_Loopback	Configure the FDCAN to operate in loopback mode.	x	-	-	Production	Arm® Cortex®-M33
	ADC	ADC_DifferentialMode	configure and use the ADC to convert an external analog input in Differential Mode, difference between external voltage on VinN and VinP.	x	-	-	Production	Arm® Cortex®-M33
		ADC_InternalChannelConversion	Configure and use the ADC to retrieve an internal ADC channel.	x	-	-	Production	Arm® Cortex®-M33
		ADC_OverSampler	Configure and use the ADC to convert an external analog input combined with oversampling feature to increase resolution through the HAL API.	x	-	-	Production	Arm® Cortex®-M33
		ADC_RegularConversion_Polling	Use the ADC in Polling mode to convert data through the HAL API.	x	-	-	Production	Arm® Cortex®-M33
	LTDC	LTDC_Display_3rdLayer	This example demonstrates CM33 controlled 3rd Layer non-protected while displaying standard HMI on linux side.	x	-	-	Production	Arm® Cortex®-M33
	TIM	TIM_DMABurst	This example shows how to update the TIMER TIM8_CH4 period and the duty cycle using the TIMER DMA burst feature.	x	-	-	Production	Arm® Cortex®-M33
		TIM_OnePulse	This example shows how to use the TIMER peripheral to generate a single pulse when a rising edge of an external signal is received on the TIMER Input pin.	x	-	-	Production	Arm® Cortex®-M33
		TIM_PWMOutput	This example shows how to configure the TIM peripheral in PWM (Pulse Width Modulation) mode.	x	x	x	Production	Arm® Cortex®-M33
		TIM_TimeBase	This example shows how to configure the TIM peripheral to generate a time base of one second with the corresponding Interrupt request.	x	x	-	Production	Arm® Cortex®-M33
		TIM_InputCapture	Use the TIM peripheral to measure the frequency of an external signal.	-	x	x	Production	Arm® Cortex®-M33

4.3.2. Signing the STM32CubeMP2 firmware

All the above projects are signed by default during the build process using a key provided in the Utilities. Only the demonstration projects are not signed. You could however sign any project using your own keys using a method described here, to sign your STM32CubeMP2 firmware binaries.

5. Get started with STM32CubeMP2 Package

To know how to get it, read STM32CubeMP2 Package - Getting Started article.

Microprocessor unit

Arm^® is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

Cortex^®

Hardware abstraction layer

Application programming interface

Low layer of STM32Cube

Board support package

Free Real-time operating system for microcontrollers (see https://www.freertos.org/)

Open Asymmetric Multi-Processing (See https://www.openampproject.org/)

Linux^® is a registered trademark of Linus Torvalds.

Microcontroller unit (MCUs have internal flash memory and are intended to operate with a minimum amount of external support ICs. They commonly are a self-contained, system-on-chip (SoC) designs.)

Remote processor messaging

Analog-to-digital converter. The process of converting a sampled analog signal to a digital code that represents the amplitude of the original signal sample.

Direct memory access

Boot and Security and OTP control

One time programmed

Cyclic redundancy check calculation unit

Cryptographic processor

Advanced encryption standard

Data encryption standard

Triple data encryption standard

Digital Camera memory interface

Digital Camera memory interface pixel processor

Display serial interface (MIPI^® Alliance standard)

Ethernet

External interrupt

General-purpose input/output (A realization of open ended transmission between devices on an embedded level. These pins available on a processor can be programmed to be used to either accept input or provide output to external devices depending on user desires and applications requirements.)

System configuration

Voltage reference buffer (STM32 specific)

Physical layer protocol

Hash-based Message authentication code

Secure hash algorithm

Hardware semaphore

Inter-processor communication controller

Inter-integrated circuit (Bi-directional 2-wire bus standard for efficient inter-IC control.)

Integrated interchip sound

Independent watchdog

Low-power timer (STM32 specific)

LCD TFT display controller (STM32 specific)

Multimedia card

Random access memory (Early computer memories generally hadserial access. Memories where any given address can be accessed when desired were then called "random access" to distinguish them from the memories where contents can only be accessed in a fixed order. The term is used today for volatile random-acces ssemiconductor memories.)

Error correction capability or Elliptic curve cryptography, meaning depends on context

Reset and clock control

Resource Isolation Framework

Illegal ACcesses - NEW

Random number generator

Real time clock

Serial audio interface (Mechanism used to transfer non-buffered audio data between processors and/or audio converters.)

Secure digital

System management bus

Serial peripheral interface

Pulse width modulation

Universal asynchronous receiver/transmitter

Universal synchronous/asynchronous receiver/transmitter

Android runtime (see https://source.android.com/devices/tech/dalvik)

High speed external oscillator (STM32 clock source)

High speed internal oscillator (STM32 clock source) or High speed synchronous serial interface (MIPI^® Alliance standard)

Multi Speed Internal oscillator (STM32 clock source)

Low speed external oscillator (STM32 clock source)

Low speed internal oscillator (STM32 clock source)

Local interconnect network

Power management unit (in STPMIC context) or performance monitoring unit (in Arm^® Cortex^®-A context)

TeleTYpewriter

Dual role port, an USB port that can operate in host or device mode

USB Type-C^® Connector System Software Interface - NEW

USB port or connector

Operating system

Central processing unit

Cortex microcontroller software interface standard

Real time operating system

Controller area network (robust bus mainly used for automotive applications)