+Requirement Model
- +Blinking LED
- +UART
+Logical Function Model
- Controller
- LED
- PC
- Button
- Blinking LED
- UART
+Software Model
- +Software
  - +Button
    - ButtonRead
    - +run_readButton
      - press_cnt
  - +LED
    - drv_LED
    - run_LED
  - +UART
- +RTE
  - +Activation Engine
    - Button Timebase
    - LED timebase
  - +Signal Layer
    - HWI LED
    - HWI_Button
    - button state
    - button_edge
    - button_cnt
    - HWO_UART
    - +Signal-Pools
      - Button
  - +System States
    - Blink
    - UART
    - +State-Handler
- +RTOS
  - Button
  - LED
  - UART
- +Linkage
  - +Output-Sections
  - +Protection-Sets
    - BaseProtection
    - UART
- +DataTypes
+Hardware Model
- +Nucelo-F446RE
  - +STM32F446RE
    - Arm® Cortex®-M4
    - main
    - +GPIO
      - PA5
      - PC13-TAMPER-RTC
    - USART
  - Button
  - LED
+Testing Model
- +Item Tests
  - (Test_128) Smoke-Test
- +Functional Tests
  - +Blinking LED
    - (Test_132) Regular blink
    - (Test_133) LED permanent ON
  - +UART
    - (Test_134) UART functional/system test

SignalDataObject

HWI_Button

Hardware interface for the button

Diagrams

Relationships

Requirements Model

Logical Function Model

Software Model

Hardware Model

Safety

Required
The highest SIL derived from SafetyRequirements. 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	HWI_Button
The type of this object within the uRTE model Type	SignalDataObject
A descriptive text for this object. Please consider that this field might be used in code and thus must not contain special characters. Description	Hardware interface for the button
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	SignalDataObject_48
Each object within the uRTE model has a unique ID, this is the ID for this object UID	_igsbkOZiEeyZ2OzYlvU4PA
signal configuration
The minimum age of the signal. If the value is other than 0 then the signal will not be valid if the minimum age is not reached. miminum Age	0
The maximum age of the signal. If the value is other than 0 then the signal will not be valid if the maximum age is reached. maximum Age	2
Lokal signals are stored in all stacks of all tasks using them, global signals are stored as global data-objects. Storage (isLocal)	local signal
if the checksum feature is enabled, the signals content (meta-data and payload) will be protected by a user defined hash alogrithm. The hash is calculated after every write operation to the signal and is checked with every read operation. Checksum	false
Depending on how a signal is configured and used, the generator can decide wether an change of the signal shall be signaled by sending a trigger or a deep copy of the signal to the corresponding tasks. If this flag is set, the generator will choose deep copy sychronization over notification where possible. Force Sync	false
Determines if the signal code shall be inlined. Might be overwritten by the Signalpool or the SignalLayer Inline	false
The inline property might be overwritten by the signalPool or the SignalLayer. This is the effective inline. effective inline	false
If this flag is set, an API will be generated with which the signal can be used from an ISR context. This option works along with the global "signal_ISR_API" option. Has ISR API	false
The ISR property might be overwritten by the global configuration. This is the effective ISR API status. effective ISR API	deactivated for all signals
datasignal configuration
The initial value of the signal. If no value is set, the generator will try to use the inital value of the datatype (if defined). Initial value:	false
Will create methods which allow to access the signals payload via a pointer. Meant for signals with large payload or timing critical signals. Use with caution! Pointer access:	false
Datatype of the signal payload. Datatype:	uRTE_boolean_t
Drivers
Driver the signal can read data from In-Driver:	ButtonRead

Software Layer

Data-In Runnables (1)

Runnables in which signal HWI_Button is an input.

Unit	Parent	Function calls	other Software Elements	Technical Functions	Requirements	Type	Tasks	WCET	Stack	ROM	Globals	ProtectionSets	SIL required	SIL achieved	sub Technical Functions	sub Requirements)	Has a return value	SystemStates	Ingoing Trigger Ports	Outgoing Trigger Ports	Ingoing Data Ports	Outgoing Data Ports
run_readButton Acquires the button state periodically and provides button signals	Button			Blinking LED UART	SafetyRequirement_94 - Global variables Requirement_95 - UART	Runnable	Button	0	0	0	press_cnt		SIL_1	QM	Blinking LED UART	SafetyRequirement_110 - Hardware Interfacing SafetyRequirement_111 - SignalLayer features Requirement_95 - UART	false	Blink UART	Runnable_run_readButton_Tick	Runnable_run_readButton_Edge_OUT	run_readButton_HW_IN	Runnable_run_readButton_Button_OUT Runnable_run_readButton_button_pressed_cnt

Tasks (1)

Tasks in which signal HWI_Button is used.

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	run_readButton ButtonRead	Blink UART	HWI_Button button state button_cnt button_edge	-	Arm® Cortex®-M4 main PC13-TAMPER-RTC	.button .rtos.task.Button .uRTE	false	.rtos.task.Button

System-States (2)

SystemStates in which signal HWI_Button is used.

State	isStart	Runnables	Tasks
Blink In this state, an LED will blink.	true	run_LED run_UART_wakeUp run_readButton	Button LED UART
UART A state that is entered if the user has pressed the button. Here, periodic UART messages are sent.	false	run_LED run_UART_send run_readButton	Button LED UART

Hardware Layer

Hardware Components (3)

Associated hardware for signal HWI_Button. Cores executing the associated runnables, memory used, peripherals interfaced.

Component	Type	Start	End	SIL required	SIL achieved
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
PC13-TAMPER-RTC B1 [Blue PushButton] on the Nucleo Board	Periphery	GPIOC_BASE	GPIOD_BASE - 1	-	QM
main The STM32F446RE RAM module	RAM	0x20000000	0x2001ffff	-	QM