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M Mithilesh
77eda6f760
The CAN/CAN FD stack requires a worker task per configured queue. Empirical profiling confirms the CAN worker task utilizes ~404 bytes of stack space on 32-bit architectures. This patch introduces CONFIGURE_MAXIMUM_CAN_QUEUES to dynamically inject the required CAN worker tasks into the master _CONFIGURE_TASKS pool. Because the 404-byte usage falls below RTEMS_MINIMUM_STACK_SIZE, provisioning them as standard system tasks automatically guarantees sufficient stack space overhead. Additionally, this patch removes the hardcoded +0x1000 stack padding in rtems_task_create to prevent workspace exhaustion, and adds the spcan01 test to verify the CONFIGURE_MAXIMUM_CAN_QUEUES macro behavior. Closes #5193
Real-Time Executive for Multiprocessing Systems
RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:
- Standards based user interfaces.
- Multitasking capabilities.
- Homogeneous and heterogeneous multiprocessor systems.
- Symmetric Multiprocessing (SMP):
- Cluster scheduling: Job-level fixed prority scheduler (EDF) with support for one-to-one and one-to-all thread to processor affinities.
- Locking protocols with transitive priority inheritance, priority ceiling, MRsP and OMIP.
- Event-driven, priority-based, preemptive scheduling.
- Scalable timer and timeout support.
- Optional rate monotonic scheduling.
- Intertask communication and synchronisation.
- Priority inheritance.
- Responsive interrupt management.
- Dynamic memory allocation.
- Dynamic code loading using run-time link editing.
- File systems, IMFS, FAT, RFS, JFFS, NSFv4 (with LibBSD)
- High level of user configurability.
- Link-time configurable schedulers.
- Linker-set based initialization (similar to global C++ constructors).
- Drivers for I2C, SPI and LibBSD has NIC, USB, SD/MMC and Framebuffer.
- Open source with a friendly user license.
RTEMS Project:
Project git repositories are located at:
Online documentation is available at:
RTEMS Doxygen for CPUKit:
RTEMS POSIX 1003.1 Compliance Guide:
RTEMS Discourse User forum for questions, answers and examples:
RTEMS Discord for support:
RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.
The version number for this software in releases is located in the VERSION file if present.