This book is intended for embedded system programmers, consultants and students interested in real-time operating
systems. μC/OS-II is a high performance, deterministic real-time kernel and can be embedded in commercial products
(see Appendix F, Licensing). Instead of writing your own kernel, you should consider μC/OS-II. You will find, as I
did, that writing a kernel is not as easy as it first looks.
In a preemptive priority based RTOS, priority inversion
problem is among the major sources of deadline
violations. Priority inheritance protocol is one of the
approaches to reduce priority inversion. Unfortunately,
RTOS like uC/OS can’t support priority inheritance
protocol since it does not allow kernel to have multiple
tasks at the same priority. Although it has different ways
to avoid priority inversion such as priority ceiling
protocol, developers still have some difficulties in
programming real time applications with it. In this paper,
we redesign the uC/OS kernel to provide the ability to
support round robin scheduling and implement priority
inheritance semaphore on the modified kernel. As result,
we port new kernel with priority inheritance semaphore to
evaluation board, and evaluate the execution time of each
of the kernel service as well as verify the operations of
our implementation.
『embedded systems building blocks, complete and ready-to-use modules in C, second edition』
- This second edition features revisions that support the latest version of the author s popular operating system and book, MicroC/OS-II - Complete and ready-to-use modules in C Get a clear explanation of functional code modules and microcontroller theory