Document source: e47887d3a11f; code reference: e47887d3a11f. 中文. Source language: en; requested: en; actual: en; translation: original.

Source documentation does not establish software or physical hardware qualification. See the support and qualification records for their exact scope.

Architecture explanations

Understand boundaries, static assembly and retained storage before changing a provider. The linked design contracts remain authoritative.

The I/O evolution design explains resource plans, optional traits and enhanced data contracts; its execution ledger keeps current and pending work separate.

The H743 Flash RAM design explains the selected V/cache-off maintenance boundary: a private CPU bridge, RAM vector owner, temporary MPU protection and real drain before return. The source is integrated; the target diagrams retain open production-ELF and complete software exits.

The RTC/LPTIM explanation separates raw calendar, finite counter and Core deadline domains. It covers current Native typed assembly, ownership, drain and explicit lifecycle; physical RTC/LPTIM and low-power support remain separate targets.

The GPIO pin-state explanation separates explicit GPIO images from factory identity, cold pad/gate ownership and checked cleanup. Its current G474 reference does not provide wake, retention or hardware low-power qualification.

• How the platform is assembled and executed
  • Current source organization
  • Optional network data and boot boundaries
  • Platform and CPU-only Runtime
  • Build-time decisions and runtime work
  • Lifecycle and failure responsibility
  • Costs and tradeoffs
• Typed factory, static instances and polymorphic faces
  • What generation owns
  • Choose strong references for new products
  • Map lifecycle diagnostics to the assembly
  • What a call does
  • Verify the generated design
• Borrow, completion and observer lifetime
  • Execution contexts and shutdown ownership
  • Three different completion facts
  • Cross-task control and continuous streams
• RTC and LPTIM: separate time domains and retained requests
  • Current implementation and planned integration
  • Three domains, three meanings
  • Who owns storage and execution
  • Source progression, terminal cause and final access
  • Explicit private reopen preserves identity and responsibility
  • Typed assembly uses the existing configuration path
  • Public and generated entry points
  • Costs and verification boundary
• GPIO pin states: explicit images under one retained lease
  • One authored plan, three distinct identities
  • Cold startup acquires responsibility before driving
  • Selection is serialized privileged work
  • Stop has two separate completion boundaries
  • Use the public selected face
  • Current scope and verification boundary
• Source-adjacent contracts
  • Core
• Core contracts
  • Arch
• CPU-local primitives
  • Typed I/O
• Typed I/O contracts and shared mechanisms
  • OS adapters
• Optional OS adapters
  • Maintained execution contracts
  • Components
• Optional common components
  • Selected network and boot contracts
  • Exact SoC implementations
• SoC packages and private providers
  • Reusable IP implementations
• Reusable IP implementations
  • Board packages
• Reviewed Board facts