uRTEDemo_03_Nucleo-F446RE_SystemStates_10_Model

SignalEventObject

button_edge

Fired whenever the button is pressed (but not if it is released)

Diagrams

Safety

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

Properties

Base
Namebutton_edge
Type SignalEventObject
Description

Fired whenever the button is pressed (but not if it is released)

User-IDSignalEventObject_57
UID_29lu0OZoEeyZ2OzYlvU4PA
signal configuration
miminum Age 0
maximum Age 0
Storage (isLocal) local signal
Checksum false
Force Sync false
Inline false
effective inline false
Has ISR API false
effective ISR API deactivated for all signals
Triggers

OnTrigger (1)

TriggerPorts associated with this event signal.

Port Events Signal event source Container Task Guard Order
Runnable_run_UART_WakeUP

If an event comes in, the runnable shall switch the state to UART to start the periodic sending

run_UART_wakeUp UART
0

Requirement Layer

Hazard Scenarios (1)

Hazard Scenarios for associated Hazardous Events.

Hazard Scenario Parent Hazard Events

This would be very sad.

Hazardous Events (2)

Hazardous Events for associated Safety Goals.

Hazardous Event Parent Probability Controllability Effect SIL Safety-Goals

The user might think µRTE is hard to use.

QM

The customer might not see the full spectrum of features µRTE comes with.

QM

Safetygoals (1)

Safety Goals linking to the Requirements.

Safety Goal Parent Function Type SIL derived SIL manual SIL effective Safe State Safety Requirements

An small demo model with the most important features shall show the most important features of µRTE.

System_Function QM derived QM Show slides

(Safety)Requirements (1)

Requirements referencing to this signal.

(Safety)Requirement Parent User-ID Author Creation Date Start Date Deadline Expense Responsibe Category Type Status Function Type SIL derived SIL manual SIL effective Tests Technical Functions Software Hardware Signals Global variables Activation events Use-Cases User-Stories Refining Conflicting refined by conflicted by

µRTE easily can transmit events and data between tasks

SafetyRequirement_96 Thomas Barth Wed Jun 08 17:46:14 CEST 2022 0.0 Thomas Barth product functional implemented System_Function QM derived QM

Software Layer

Data-Out Runnables (1)

Runnables in which this signal is an output.

Unit Parent Function calls Technical Functions Requirements Type Tasks WCET Stack ROM Globals ProtectionSets SIL req SIL ach sub Technical Functions sub Requirements) Has a return value SystemStates Ingoing Trigger Ports Outgoing Trigger Ports Ingoing Data Ports Outgoing Data Ports

Acquires the button state periodically and provides button signals

Button
Runnable 0 0 0
QM QM false
  • Runnable_run_readButton_Tick
  • Runnable_run_readButton_Edge_OUT
  • run_readButton_HW_IN
  • Runnable_run_readButton_Button_OUT
  • Runnable_run_readButton_button_pressed_cnt

Data-In Runnables (1)

Runnables in which this signal is an input.

Unit Parent Function calls Technical Functions Requirements Type Tasks WCET Stack ROM Globals ProtectionSets SIL req SIL ach sub Technical Functions sub Requirements) Has a return value SystemStates Ingoing Trigger Ports Outgoing Trigger Ports Ingoing Data Ports Outgoing Data Ports

Runnable to switch into the UART state if there is an event in the Blink State.
This runnable does not use hardware signals but accesses hardware directly and is therefore associated with
an protection set grandting access to hardware.

UART
Runnable 0 0 0
QM QM
true
  • Runnable_run_UART_WakeUP

Tasks (2)

Tasks in which the signal is used.

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 for sending out UART protocolls

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

System-States (2)

SystemStates in which the signal is used.

State isStart Runnables Tasks

In this state, an LED will blink.

true

A state that is entered if the user has pressed the button. Here, periodic UART messages are sent.

false

Hardware Layer

Hardware Components (2)

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

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

The STM32F446RE RAM module

RAM 0x20000000 0x2001ffff - QM