uRTEDemo_03_Nucleo-F446RE_SystemStates_10_Model

MCU

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.

Diagrams

Safety

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

Properties

Base
NameSTM32F446RE
Type MCU
Description

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.

User-IDMCU_1
UID_SZNx4OTGEeylqKO1utY0Yw
Ports

Ports (2)

Ports connected to this MCU.

Port Connections
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 (6)

Hardware Components contained in this MCU.

Component Type Start End SIL req SIL ach Sub-Components Technical Functions sub Technical Functions Requirements sub Requirements

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

Collector for pin peripherals

HWComponent - - - QM

LD2 [Green Led] on the Nucelo Board

Periphery GPIOA_BASE GPIOB_BASE - 1 - QM

B1 [Blue PushButton] on the Nucleo Board

Periphery GPIOC_BASE GPIOD_BASE - 1 - QM

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

Periphery USART2_BASE USART3_BASE - 1 - QM

The STM32F446RE RAM module

RAM 0x20000000 0x2001ffff - QM

Functional Layer

Technical functions to sub-components (2)

Technical Functions referencing to sub-components of this MCU.

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

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

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 MCU.

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

Reads the current button state from hardware

Button
InDriver 0 0 0
QM QM uRTE_boolean_t true

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

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

a section containing application data for the button

SIL_1 UnInit true ADRL_uRTE_BUTTON_BEGIN* ADRL_uRTE_BUTTON_END* main

Stack for the Button Task

SIL_1 UnInit true ADRL_uRTE_RTOSTASKBUTTON_BEGIN* ADRL_uRTE_RTOSTASKBUTTON_END* main

Stack for the LED Task

SIL_1 UnInit true ADRL_uRTE_RTOSTASKLED_BEGIN* ADRL_uRTE_RTOSTASKLED_END* main

Stack for the UART Task

SIL_1 UnInit true ADRL_uRTE_RTOSTASKUART_BEGIN* ADRL_uRTE_RTOSTASKUART_END* main

Stack for the uRTE Task

SIL_1 UnInit true ADRL_uRTE_RTOSTASKURTE_BEGIN* ADRL_uRTE_RTOSTASKURTE_END* main

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

Contains the resources to use the UART module

Tasks (3)

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

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

Task responsible for reading the button state

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

Task responsible to let the LED blink

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

Task responsible for sending out UART protocolls

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