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52 lines
2.0 KiB
Markdown
52 lines
2.0 KiB
Markdown
2 years ago
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About uC-OS2
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=============
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uC-OS2 (a.k.a. uC/OS-II or MicroC/OS-II) is a portable, ROMable, scalable, preemptive,
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real-time deterministic multitasking kernel for microprocessors, microcontrollers and DSPs.
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Offering unprecedented ease-of-use, uC-OS2 is delivered with complete 100% ANSI C
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source code and in-depth documentation. uC-OS2 runs on the largest number of processor
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architectures, with ports available for download from the Micrium Web site.
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## For the complete documentation, visit https://doc.micrium.com/display/ucos/
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uC-OS2 Source Code
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==================
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The uC-OS2 code ( V2.93.00) has been taken from the following GitHub repository:
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https://github.com/SiliconLabs/uC-OS2
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***
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NOTE: The uC-OS2 from GitHub has been altered by Quantum Leaps to reduce its size.
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Specifically, the Ports sub-directory has been cleaned up and only the uC-OS2 ports
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relevant to the provided examples have been retained.
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***
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uC-OS2 Ports
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=============
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The folder "Ports" contains the generic uC-OS2 Ports to ARM-Cortex-M3 and ARM-Cortex-M4.
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***
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NOTE: The ports have been modified by Quantum Leaps to remove the dependencies on the
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Micrium's uC-CPU and uC-LIB components, and instead to inter-operate with the Cortex
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Microcontroller Software Interface Standard (CMSIS).
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***
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Modifications for CMSIS
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-----------------------
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Specifically, the names of the standard exception handlers PendSV and SysTick
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used by the uC/OS-II ports have been renamed to be compliant with the CMSIS
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naming convention.
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Additionally, the Cortex-M4F ports have been modified to include the FPU
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configuration that is expected by the uC/OS-II port to Cortex-M4F, which
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was different from the FPU configuration performed by the CMSIS-compliant
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startup code. Specifically, the explicit FPU configuration has been
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OSInitHookEnd() function in the file os_cpu_c.c.
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Licensing Information
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=====================
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uC-OS2 is provided by Silicon Labs under the Apache License, Version 2.0. Please refer
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to the file license.txt in the same folder as this README.md file.
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