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Chopstx - Threads and only Threads Version 1.14 2018-03-02 Niibe Yutaka Flying Stone Technology What's Chopstx? =============== Chopstx is an RT thread library for STM32F103 and GD32F103 (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. While threads are important, we don't need more threads than necessary. Chopstx provides a feature of poll, so that we can minimize use of threads. Note that 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 an opportunity visiting the wiki page above, when my children were playing the game. 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 If you want to try GD32F103, Add -DMHZ=96 to DEFS in Makefile. 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. --