Chopstx - Threads and only Threads Version 1.4 2017-08-11 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 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.

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 function. 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 comiler'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.