NXP Semiconductors CWS-OSK-5500-DV

Overview

CWS-OSK-5500-DV from Freescale Semiconductor is a statically configured OSEK/VDX-compliant Real-Time Operating System (RTOS) targeting MPC55xx-series microcontrollers, supporting BCC1/ECC1/BCC2/ECC2 conformance classes with sub-2µs context switch (1.7µs on MPC555 @40MHz), 2304-byte ROM footprint, and ORTI-enabled kernel-aware debugging in CodeWarrior IDE.

For engineers reviewing the CWS-OSK-5500-DV datasheet, CWS-OSK-5500-DV application, CWS-OSK-5500-DV pinout, or CWS-OSK-5500-DV equivalent, this product delivers deterministic task scheduling, priority ceiling resource management, cyclic alarm activation, stack monitoring, and full internal inter-process communication - all validated under SEI CMM Level 5 software process maturity.

Technical Context

CWS-OSK-5500-DV implements the OSEK/VDX OS specification with support for four conformance classes (BCC1, ECC1, BCC2, ECC2) and integrates tightly with Freescale's MPC55xx processor family. It uses static configuration via OIL files generated by OSEK Builder and enables pre-emptive scheduling, event-controlled task synchronization, and counter-based alarm management.

The RTOS leverages hardware features including memory bank switching, low-power mode support, and optimized interrupt handler integration. Its kernel includes fast data structure access, automatic exclusion of unused services, and efficient stack allocation methods verified across benchmark configurations with 19 tasks and 3 ISRs.

Key Specifications

Availability

CWS-OSK-5500-DV is available at Aetrix Electronics and suitable for automotive engine control units, industrial motion controllers, and telecom baseband subsystems requiring stable component supply, long-term software lifecycle support, and certified real-time behavior.

Supply support for CWS-OSK-5500-DV 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 was a leading provider of embedded processing solutions, later acquired by NXP Semiconductors in 2015; its legacy RTOS tools remain widely deployed in automotive and industrial systems.

CWS-OSK-5500-DV belongs to the OSEKturbo OS product line, designed specifically to meet ASIL-B–level timing determinism, memory predictability, and debuggability requirements in automotive electronic control units.

FAQ

What is the target processor family for CWS-OSK-5500-DV?

CWS-OSK-5500-DV is explicitly built for Freescale's MPC55xx series of 32-bit Power Architecture microcontrollers. It supports all MPC55xx variants listed in the official release documentation and is optimized for their memory map, interrupt controller, and peripheral access patterns. The CWS-OSK-5500-DV package includes device-specific startup code, linker scripts, and register definitions validated on MPC555 and MPC5566 hardware platforms.

Does CWS-OSK-5500-DV support dynamic object creation at runtime?

No, CWS-OSK-5500-DV implements strictly static configuration as required by OSEK/VDX conformance classes BCC1/ECC1/BCC2/ECC2. All tasks, alarms, resources, and counters must be declared in the OIL configuration file and resolved at build time. This eliminates heap allocation, guarantees bounded memory usage, and ensures deterministic initialization - a requirement for ISO 26262-compliant automotive software. CWS-OSK-5500-DV does not provide API functions for runtime object creation.

How is CWS-OSK-5500-DV integrated with CodeWarrior Development Studio?

CWS-OSK-5500-DV integrates via OSEK Builder (graphical OIL editor), SysGen (system generator), and a kernel-aware debugger plug-in for CodeWarrior. This enables full visibility into task states, ISR nesting, resource ownership, and alarm status during live debugging. The CWS-OSK-5500-DV installation provides project stationaries, sample configurations, and automated build rules that bind OIL parsing, library linking, and symbol injection directly into the CodeWarrior workflow.

What OSEK/VDX communication (COM) modules are included with CWS-OSK-5500-DV?

CWS-OSK-5500-DV includes support for both CCCA and CCCB conformance classes of the OSEK COM specification, enabling message-based inter-task and inter-ECU communication using standardized PDU handling, signal grouping, and network management primitives. These COM modules are statically linked and configured alongside the OS kernel in the same OIL file, ensuring consistent timing behavior and memory layout. CWS-OSK-5500-DV does not include CAN driver stacks - those are provided separately.

Is CWS-OSK-5500-DV certified for functional safety standards such as ISO 26262?

CWS-OSK-5500-DV itself is not independently ISO 26262-certified; however, it was developed under SEI CMM Level 5 processes and has been deployed in ASIL-B and ASIL-C automotive systems where the integrator performs full tool qualification per ISO 26262-8. Freescale provided safety manuals, FMEDA data, and traceability matrices for CWS-OSK-5500-DV, enabling qualified use in safety-critical applications when applied per documented constraints and configuration rules.