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https://gitlab.rtems.org/rtems/rtos/rtems.git
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Avi Weiss
e07f69641b
calls to tms570_irq_set_priority protect against requesting a priority < 2, but not against inputs with vector < 2. for example calling tms570_irq_set_priority(ESM_HIGH, 10) will not only get through the guard, it will attempt to write to CHANCTRL0 (which gets blocked by hardware), puts whatever was there (apparently hardcoded INT-REQ0) into channel 10, and returns success. So the channel 10 request dissappeared from the VIM channel map completely - yet this call returns RTEMS_SUCCESSFUL TRM (for both TMS570LS31x and TMS570LC43x) states: NOTE: CHAN0 and CHAN1 are hard wired to INT_REQ0 and INT_REQ1, so they cannot be remapped. This commit puts a guard to fail on requests with vector < 2.
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.