NXP Semiconductors CWX-OSK-D500K-DL

Overview

CWX-OSK-D500K-DL from Freescale Semiconductor is a pre-licensed, statically configured OSEK/VDX-compliant Real-Time Operating System (RTOS) for automotive and industrial embedded controllers. It implements the BCC1 conformance class, delivers 1.7 µs task-to-task context switch on MPC555 at 40 MHz, requires only 776 bytes ROM on HCS12DP256, and supports kernel-aware debugging via CodeWarrior IDE with ORTI.

For engineers reviewing the CWX-OSK-D500K-DL datasheet, CWX-OSK-D500K-DL pinout, CWX-OSK-D500K-DL application, or CWX-OSK-D500K-DL equivalent, key selection criteria include OSEK OS conformance class (BCC1), memory footprint (≤776 bytes ROM on 16-bit targets), deterministic context-switch latency, static configuration model, and integration with Freescale's CodeWarrior Development Studio and OSEK Builder toolchain.

Technical Context

CWX-OSK-D500K-DL implements the OSEK/VDX OS specification's Basic Conformance Class 1 (BCC1), supporting up to 16 priority levels, pre-emptive scheduling, and single activation per task. It uses static configuration defined in OIL format and excludes unused services at build time to minimize footprint.

The RTOS provides ORTI-compliant kernel awareness for CodeWarrior IDE debugging, includes stack monitoring and priority ceiling protocol-based resource management, and supports cyclic task activation via timescale-enabled alarms - all without dynamic memory allocation or runtime configuration.

Key Specifications

Availability

CWX-OSK-D500K-DL is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC logic modules, and telecom base station controller firmware requiring stable component supply, long-term software license continuity, and certified RTOS traceability.

Supply support for CWX-OSK-D500K-DL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors and software tools for automotive, industrial, and networking applications.

CWX-OSK-D500K-DL belongs to Freescale's OSEKturbo OS product line, engineered specifically for ISO 26262-aligned automotive ECU development where deterministic timing, minimal memory footprint, and toolchain-integrated verification are mandatory.

FAQ

What is the OSEK conformance class supported by CWX-OSK-D500K-DL?

CWX-OSK-D500K-DL implements the OSEK/VDX Basic Conformance Class 1 (BCC1). This means it supports pre-emptive scheduling, single task activation per priority level, and no event masking - making it suitable for safety-critical automotive applications where timing predictability is essential. The BCC1 profile is validated in the CWX-OSK-D500K-DL release documentation and confirmed across all supported targets including HCS12 and MPC555.

Does CWX-OSK-D500K-DL require runtime configuration or dynamic memory allocation?

No. CWX-OSK-D500K-DL uses a fully static configuration model defined in OSEK Implementation Language (OIL) and compiled into the final image. All OS objects - tasks, alarms, counters, resources - are resolved at build time. No heap usage or runtime initialization is required, ensuring deterministic startup and eliminating memory fragmentation risks in CWX-OSK-D500K-DL deployments.

Which development tools integrate directly with CWX-OSK-D500K-DL?

CWX-OSK-D500K-DL is natively integrated with Freescale's CodeWarrior Development Studio and OSEK Builder graphical configuration tool. Kernel-aware debugging via ORTI, automatic project setup using stationaries, and seamless SysGen integration are all supported. The CWX-OSK-D500K-DL package includes libraries and templates compatible with CodeWarrior v6.x and later for HCS12, S12X, and MPC5xx families.

What is the minimum ROM and RAM requirement for CWX-OSK-D500K-DL on an 8-/16-bit target?

On the HCS12DP256 platform, CWX-OSK-D500K-DL consumes 776 bytes of ROM and 90 bytes of RAM. These figures represent the complete BCC1 OS image with standard status and debug level zero - verified in the official benchmark configuration. Memory usage scales linearly with enabled features but remains bounded due to static linking and automatic exclusion of unused services in CWX-OSK-D500K-DL builds.

Is CWX-OSK-D500K-DL certified to any functional safety standard?

CWX-OSK-D500K-DL itself is not independently certified, but it was developed under SEI CMM Level 5 processes and deployed in production automotive ECUs meeting ISO 26262 ASIL-B requirements. Its static architecture, absence of dynamic allocation, and deterministic timing behavior - validated in published benchmarks - support qualification as part of a larger safety-certified system. Documentation for CWX-OSK-D500K-DL includes traceability matrices and test reports usable in safety case development.