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Chopstx - Threads and only Threads
Version 1.5
2017-10-10
Niibe Yutaka
Flying Stone Technology
What's Chopstx?
===============
Chopstx is an RT thread library for STM32F103 (ARM Cortex-M3),
STM32F030 (ARM Cortex-M0), MKL27Z (ARM Cortex-M0plus), and
emulation on GNU/Linux.
While most RTOSes come with many features, drivers, and protocol
stacks, Chopstx just offers a simple RT thread library.
With Chopstx, interrupt handling is also done by a thread. This
enables coherent code for ease of maintenance.
This library is _not_ related to the hand game:
https://en.wikipedia.org/wiki/Chopsticks_(hand_game)
Thanks to Yao Wei and Enrico Zini for giving me the opportunity
visiting the wiki page.
License
=======
It is distributed under GNU General Public Licence version 3 or later
(GPLv3+), with additional permission. Please see COPYING and
EXCEPTION.
Example code
============
We have some examples in this distribution; Useful ones are LED
blinker and USB CDC-ACM device. For STM32F103, you can build it USB
CDC-ACM demo by:
$ cd example-cdc
$ ln -sf ../board/board-olimex-stm32-h103.h board.h
$ make
For a specific board named FSM-55, an example of LED matrix dynamic
driver is provided. See the directory: example-fsm-55.
For STM32 Primer2, see the directory: example-primer2.
Future Works
============
Convenience function to determine the bottom of thread stack,
configuration of thread size by compiler's output would be next things
to be done.
Experimental SMP port for Cortex-A7 is under development. For SMP,
more careful considerations for shared access to objects of struct
chx_pq is needed. So, modifications required will not be small.
--
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