uRTEDemo_03_Nucleo-F446RE_SystemStates_10_Model

SWComponent

LED

contains the logic to control the LED

Diagrams

SWC LED

Safety

Required
SILs QM

Properties

Base
NameLED
Type SWComponent
Description

contains the logic to control the LED
User-IDSWComponent_2
UID_ZwIVEOTGEeylqKO1utY0Yw
configuration
Filenameswc_LED
Generatedtrue
Sub-Folderfalse
containment

Software units (2)

All software units contained in this SWC

Unit Parent Function calls Technical Functions Requirements Type Tasks WCET Stack ROM Globals ProtectionSets SIL req SIL ach sub Technical Functions (R) sub Requirements (R) Has a return value (R) SystemStates (R) Ingoing Trigger Ports (R) Outgoing Trigger Ports (R) Ingoing Data Ports (R) Outgoing Data Ports (R) Signals (D) Runnables (D) DataType (D) Is Synchronous (D) Hardware (D) Ports (G) Callers (F) Return Type (F) Parameters (F)
drv_LED

Hardware write-Interface towards the LED

 LED
OutDriver 0 0 0
QM QM - - - - - - - - uRTE_boolean_t true - - - -
run_LED

Controls the LED signal and thus the LED

 LED
Runnable 0 0 0
- QM false
  • Runnable_00_blink_Tick
  • Runnable_blink_Button_IN
  • Runnable_00_blink_OUT
 - - - - - - - - -

Ingoing Data Ports (1)

Data IN ports attached to this SWC

Port Signals Source Container
SWC_LED_Button_IN LED

Outgoing Data Ports (1)

Data OUT ports attached to this SWC

Port Signals Target Container
SWC_Blinky_OUT LED

Requirement Layer

Hazard Scenarios (1)

Hazard Scenarios for associated Hazardous Events.

Hazard Scenario Parent Hazard Events
Potential customers don't like the tool

This would be very sad.

Hazardous Events (2)

Hazardous Events for associated Safety Goals.

Hazardous Event Parent Probability Controllability Effect SIL Safety-Goals
Complexity

The user might think µRTE is hard to use.

 QM
Unknown features

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
Show most important features in an lightweight demo

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 (3)

Requirements mapped to software units in this SWC.

(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
(SafetyRequirement_110) Hardware Interfacing

How to read and write data form and to hardware.

 SafetyRequirement_110 Thomas Barth Thu Jun 09 20:50:22 CEST 2022 0.0 Thomas Barth product functional approved System_Function QM derived QM
(Requirement_32) LED Blink

In order to indicate that uRTE is up and running, an LED shall blink (toggle its binary state) with an frequency of 1/100ms.

 Requirement_32 Thomas Barth Tue Jun 07 13:05:57 CEST 2022 0.0 Thomas Barth product functional implemented - - - -
(Requirement_93) LED Button

While the button is pressed, the LED shall be on permanently.

 Requirement_93 Wed Jun 08 17:18:27 CEST 2022 0.0 product functional implemented - - - -

Functional Layer

Technical Functions (1)

Technical functions mapped to software functions in this SWC.

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.

Software Layer

Tasks (1)

Tasks executing software units in this SWC

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

Task responsible to let the LED blink

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

Signals (2)

Signals used by the runnables in this SWC

Signal Type Storage Runnables OUT Runnables IN Tasks SystemStates Requirements miminum Age maximum Age Checksum Force Sync Inline ISR API effective inline SIL req SIL ach Initial value (D) Pointer access (D) Datatype (D) Alt-In (D) Alt-Out (D) In-Driver (D) Out-Driver (D) OnData (D) OnError (D) OnTrigger (E)
HWI LED

Hardware interface for the LED

 Data local in
0 0 false false false false false - QM 0 false uRTE_boolean_t
-
-
button state

A representation of the current button state

 Data local in
0 105 false false false false false SIL_1 QM false false uRTE_boolean_t
-
-

Source Runnables (1)

Runnables in other SWCs providing data for the runnables in this SWC.

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
run_readButton

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

Ingoing Trigger Ports (1)

Trigger IN ports attached to the runnables in this SWC.

Port Events Signal event source Container Task Guard Order
Runnable_00_blink_Tick
run_LED LED
0

Activation-Events (1)

Activation Events triggering the execution of runnables in this SWC.

Event Type Cycle Time (C) Offset (C) Task-Init (S) Requirements Ports Runnables Tasks SystemStates SIL req SIL ach
LED timebase

The timebase for the LED logic. Has an bit of offset to make sure it comes after the button has been read (button value is polled).

 CyclicEvent 100 2 -
  • Runnable_00_blink_Tick in run_LED
- QM

Hardware Layer

Hardware Components (2)

Cores executing the software units of this SWC and hardware references by the drivers.

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
PA5

LD2 [Green Led] on the Nucelo Board

 Periphery GPIOA_BASE GPIOB_BASE - 1 - QM

Testing Layer

Tests (2)

Tests derived from referencing requirements.

Test User-ID Group Priority Status Procedure and Input-Data Expected Results SIL Requirements Technical-Functions Software-Units Signals Global variables Activation-Events Hardware-Components
(Test_132) Regular blink

The LED has to blink with a frequency of 1/100ms.

 Test_132 0 implemented Regular power-on without user-input A blinking LED
(Test_133) LED permanent ON

Check if the LED is permanent on if there is user-input from the button

 Test_133 0 implemented After a regular power-on, the button is pressed The LED shall be permanently on while the button is pressed