Requirement Model
Blinking LED
UART 
Unknown featuresComplexity
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
Logical Function Model
Software Model
Hardware Model
Testing Model
Hardware Model
The hardware model contains the physical components of the system.
The model has to contain the memory, CPUs and Peripherals on which the RTE is executed and may contain a description of the ecosystem, such as sensors, actors and other interfaces.
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| SIL | - |
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| 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 | |||||
Blue button |
Sensor | - | - | - | QM | |||||
Collector for pin peripherals |
HWComponent | - | - | - | QM | |||||
green SMD LED |
Actor | - | - | - | QM | |||||
The STM32 Nucleo-64 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller. For the compatible boards, the external SMPS significantly reduces power consumption in Run mode. The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields. |
ECU | - | - | - | QM | |||||
LD2 [Green Led] on the Nucelo Board |
Periphery | GPIOA_BASE | GPIOB_BASE - 1 | - | QM | |||||
B1 [Blue PushButton] on the Nucleo Board |
Periphery | GPIOC_BASE | GPIOD_BASE - 1 | - | QM | |||||
The STM32F446xC/E devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a floating point unit (FPU) single precision supporting all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security. The STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbytes, up to 128 Kbytes of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. |
MCU | - | - | - | QM | |||||
UART module connected to pin TX/RX PA2/PA3 at 115200 8N1 |
Periphery | USART2_BASE | USART3_BASE - 1 | - | QM | |||||
The STM32F446RE RAM module |
RAM | 0x20000000 | 0x2001ffff | - | QM |
