CyclicEvent
Button Timebase
Timebase for button read operations
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Requirement Model
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Blinking LED
- +UART
Unknown features- Complexity
Potential customers don't like the tool
Show most important features in an lightweight demo
(SafetyRequirement_93) Runnable activation by signal events- (SafetyRequirement_94) Global variables
- (SafetyRequirement_95) Runnable activation by cyclic events
- (SafetyRequirement_96) Inter-task communication
- (SafetyRequirement_97) local and global signals
- (SafetyRequirement_98) Multiple System-States
(Requirement_95) UART- (SafetyRequirement_110) Hardware Interfacing
- (SafetyRequirement_111) SignalLayer features
- (SafetyRequirement_115) Protection Sets
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Logical Function Model
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Software Model
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Hardware Model
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Testing Model
Warnings
Safety (1)
Safety Warnings for CyclicEvent Button Timebase.
Safety warnings are related to the Requirements Layer, especially the SIL
| Button Timebase has a SIL effective of SIL_1 but a SIL achieved of QM |
Safety
| Required | |
|---|---|
| SIL derived | SIL_1 |
| overwrite (SIL_manual) | derived |
| reason (SIL_manual_reason) | |
| SIL | SIL_1 |
| Achieved | |
| SIL achieved | QM |
| justification | |
Properties
| Base | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Button Timebase | ||||||||||||||
| Type | CyclicEvent |
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| Description | Timebase for button read operations |
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| User-ID | CyclicEvent_52 | ||||||||||||||
| UID | _bCdS8OZjEeyZ2OzYlvU4PA | ||||||||||||||
| configuration | |||||||||||||||
| Cycle Time | 200 | ||||||||||||||
| Offset | 0 | ||||||||||||||
| |||||||||||||||
| Port | Events | Signal event source | Container | Task | Guard | Order |
|---|---|---|---|---|---|---|
 Runnable_run_readButton_Tick |
|
 run_readButton
|
 Button |
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 CyclicEvent.
| (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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Runnables can be activated by cyclic events. |
SafetyRequirement_95 | Thomas Barth | Wed Jun 08 17:34:15 CEST 2022 | 0.0 | Thomas Barth | product | functional | implemented | System_Function | QM | SIL_1 | SIL_1 |
|
Software Layer
Runnables (1)
Runnables triggered by this event.
| 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 |
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Runnable_run_readButton_Edge_OUT
run_readButton_HW_IN
Runnable_run_readButton_Button_OUT Tasks (1)
Tasks which can be activated with this event (depending on the system-state).
| 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 |
System-States (2)
States in which the event is active.
| 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 |