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

Relationships

Requirements Model
Logical Function Model
Software Model
Hardware Model

Safety

Required
The highest SIL derived from SafetyRequirements and Technical Functions.
SIL derived 		-
This attribute allows to overwrite the derived SIL level. The result is the SIL effective attribute.
SIL manual 		derived
The reason why the derived SIL is ignored and an explicit SIL is set.
reason
The SIL required for this implementation unit is defined by the derived SIL but can be overwritten by "SIL manual".
SIL required 		-
Achieved
The achieved SIL for this implementation unit. Has to be provided by the user.
SIL achieved 		QM
A justification why a certain SIL was achieved.
justification

Properties

Base
The name of this object. Certain classes of objects require this field to be unique. Please consider that this field might be used in code and thus must not contain special characters.
Name 		STM32F446RE
The type of this object within the uRTE model
Type 		MCU
A descriptive text for this object. Please consider that this field might be used in code and thus must not contain special characters.
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.
A user defined ID which can be freely chosen. Please consider that this field might be used in code and thus must not contain special characters.
User-ID 		MCU_1
Each object within the uRTE model has a unique ID, this is the ID for this object
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 required SIL achieved 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
GPIO

Collector for pin peripherals

 HWComponent - - - QM
PA5

LD2 [Green Led] on the Nucelo Board

 Periphery GPIOA_BASE GPIOB_BASE - 1 SIL_1 QM
PC13-TAMPER-RTC

B1 [Blue PushButton] on the Nucleo Board

 Periphery GPIOC_BASE GPIOD_BASE - 1 - QM
USART

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

 Periphery USART2_BASE USART3_BASE - 1 SIL_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 MCU.

Function LFB Software Hardware Other Software SIL required SIL achieved SIL justification sub Technical Functions Requirements sub Requirements
Blinking LED

An LED shall blink to indicate that the system is alive and responding.
SIL_1 QM
UART

If the button is pressed, UART messages indicating the press duration are sent.
SIL_1 QM

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 other Software Elements Technical Functions Requirements Type Tasks WCET Stack ROM Globals ProtectionSets SIL required SIL achieved Signals Runnables DataType Is Synchronous Hardware
ButtonRead

Reads the current button state from hardware

 Button
InDriver 0 0 0
SIL_1 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
SIL_1 QM None true
drv_LED

Hardware write-Interface towards the LED

 LED
OutDriver 0 0 0
SIL_1 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 MCU 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