+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

Core

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

Diagrams

Requirements Model

Logical Function Model

Software Model

Hardware Model

Safety

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

Properties

Base
Name	Arm® Cortex®-M4
Type	Core
Description	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
User-ID	Core_4
UID	_mta1cOTHEeyrV5NXTwe27Q
Core specific configuration
ID	0
Ports

Software Layer

ActivationEngine

This core executes the central activation engine.

Tasks (3)

Tasks using this Core 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	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
LED Task responsible to let the LED blink	Arm® Cortex®-M4	SIL_1	4	run_LED drv_LED	Blink UART	HWI LED button state	-	Arm® Cortex®-M4 main PA5	.rtos.task.LED .uRTE	false	.rtos.task.LED
UART Task responsible for sending out UART protocolls	Arm® Cortex®-M4	SIL_1	5	run_UART_send UART out run_UART_wakeUp	Blink UART	HWO_UART button state button_cnt button_edge	-	Arm® Cortex®-M4 USART main	.button .rtos.task.UART .uRTE	false	.rtos.task.UART