uRTEDemo_03_Nucleo-F446RE_SystemStates_10_Model

ECU

Nucelo-F446RE

The STM32 Nucleo-64 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller. For the compatible boards, the external SMPS significantly reduces power consumption in Run mode. The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.
The STM32 Nucleo-64 board does not require any separate probe as it integrates the ST-LINK debugger/programmer.
The STM32 Nucleo-64 board comes with the STM32 comprehensive free software libraries and examples available with the STM32Cube MCU Package.

Diagrams

Requirements Model
Logical Function Model
Software Model
Hardware Model
HWC Nucelo-F446RE

Safety

Required
SIL derived -
overwrite (SIL_manual) derived
reason (SIL_manual_reason)
SIL -
Achieved
SIL achieved QM
justification

Properties

Base
NameNucelo-F446RE
Type ECU
Description

The STM32 Nucleo-64 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller. For the compatible boards, the external SMPS significantly reduces power consumption in Run mode. The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields. The STM32 Nucleo-64 board does not require any separate probe as it integrates the ST-LINK debugger/programmer. The STM32 Nucleo-64 board comes with the STM32 comprehensive free software libraries and examples available with the STM32Cube MCU Package.
User-IDECU_100
UID_ca5ssOdMEeyMHMAOoLxcsQ
Ports

Sub-Ports (4)

Ports of sub-components.

Port Connections
Button_Pin (HWPort_104)
pressed (HWSignal_103)

Signal Type:
Digital

Connects to:
STM32F446RE_PC13 (HWPort_105) at STM32F446RE

LED_Pin (HWPort_108)
control (HWSignal_106)

Signal Type:
Digital

Connects to:
STM32F446RE_PA5 (HWPort_107) at STM32F446RE

STM32F446RE_PA5 (HWPort_107)
control (HWSignal_106)

Signal Type:
Digital

Connects to:
LED_Pin (HWPort_108) at LED

STM32F446RE_PC13 (HWPort_105)
pressed (HWSignal_103)

Signal Type:
Digital

Connects to:
Button_Pin (HWPort_104) at Button

Sub Components

Hardware Components (9)

Hardware Components contained in this ECU.

Component Type Start End SIL req SIL ach Sub-Components Technical Functions sub Technical Functions Requirements sub Requirements
Arm® Cortex®-M4

Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions

 Core - - - QM
Button

Blue button

 Sensor - - - QM
GPIO

Collector for pin peripherals

 HWComponent - - - QM
LED

green SMD LED

 Actor - - - QM
PA5

LD2 [Green Led] on the Nucelo Board

 Periphery GPIOA_BASE GPIOB_BASE - 1 - QM
PC13-TAMPER-RTC

B1 [Blue PushButton] on the Nucleo Board

 Periphery GPIOC_BASE GPIOD_BASE - 1 - QM
STM32F446RE

The STM32F446xC/E devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a floating point unit (FPU) single precision supporting all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security. The STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbytes, up to 128 Kbytes of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers.
They also feature standard and advanced communication interfaces.

 MCU - - - QM
USART

UART module connected to pin TX/RX PA2/PA3 at 115200 8N1

 Periphery USART2_BASE USART3_BASE - 1 - QM
main

The STM32F446RE RAM module

 RAM 0x20000000 0x2001ffff - QM

Functional Layer

Technical functions to sub-components (2)

Technical Functions referencing to sub-components of this ECU.

Function LFB Software Hardware Technical Functions sub Technical Functions Requirements sub Requirements
Blinking LED

An LED shall blink to indicate that the system is alive and responding.
UART

If the button is pressed, UART messages indicating the press duration are sent.

Software Layer

ActivationEngine

The central activation engine is executes by a core sub-component of this ECU.

Drivers (3)

Drivers which utilize this component or one of its sub-components.

Unit Parent Function calls Technical Functions Requirements Type Tasks WCET Stack ROM Globals ProtectionSets SIL req SIL ach Signals Runnables DataType Is Synchronous Hardware
ButtonRead

Reads the current button state from hardware

 Button
InDriver 0 0 0
QM QM uRTE_boolean_t true
UART out

writes Data to the UART module.
No DataType is chosen, so that a typedef file will be generated.

 UART
OutDriver 0 0 0
- QM None true
drv_LED

Hardware write-Interface towards the LED

 LED
OutDriver 0 0 0
QM QM uRTE_boolean_t true

Output-Sections (6)

Output Sections referencing this component or one of its sub-components.

OutputSection SIL References Initialization Generate Section start symbol Section end symbol Memory
.button

a section containing application data for the button

 SIL_1 UnInit true ADRL_uRTE_BUTTON_BEGIN* ADRL_uRTE_BUTTON_END* main
.rtos.task.Button

Stack for the Button Task

 SIL_1 UnInit true ADRL_uRTE_RTOSTASKBUTTON_BEGIN* ADRL_uRTE_RTOSTASKBUTTON_END* main
.rtos.task.LED

Stack for the LED Task

 SIL_1 UnInit true ADRL_uRTE_RTOSTASKLED_BEGIN* ADRL_uRTE_RTOSTASKLED_END* main
.rtos.task.UART

Stack for the UART Task

 SIL_1 UnInit true ADRL_uRTE_RTOSTASKUART_BEGIN* ADRL_uRTE_RTOSTASKUART_END* main
.rtos.task.uRTE

Stack for the uRTE Task

 SIL_1 UnInit true ADRL_uRTE_RTOSTASKURTE_BEGIN* ADRL_uRTE_RTOSTASKURTE_END* main
.uRTE

Contains the data for uRTE internals

 SIL_1 UnInit true ADRL_uRTE_URTE_BEGIN* ADRL_uRTE_URTE_END* main
Symbols marked with * are automatically generated because no value was set.

Protection-Sets (1)

ProtectionSets referencing this component or one of its sub-components. See Output Sections for more ProtectionSets.

ProtectionSet Globals OutputSections Hardware Software Units Tasks
UART

Contains the resources to use the UART module

Tasks (3)

Tasks using this ECU or one of its sub-components.

Task Core SIL Priority Software States Signals Init Hardware OutputSections Own TimeBase Stack
Button

Task responsible for reading the button state

 Arm® Cortex®-M4 SIL_1 6 - false .rtos.task.Button
LED

Task responsible to let the LED blink

 Arm® Cortex®-M4 SIL_1 4 - false .rtos.task.LED
UART

Task responsible for sending out UART protocolls

 Arm® Cortex®-M4 SIL_1 5 - false .rtos.task.UART