topic Re: Threads/Fibers code? in Other NXP Products

Threads/Fibers code?

jonr — Fri, 16 Sep 2011 20:14:05 GMT

I have an application that is in need of "fibers" (see: http://en.wikipedia.org/wiki/Fiber_(computer_science) ). Basically, non-preemptive threads where a process can allow another process to run by calling "yield()". At a low level, the scheduler round robins among tasks with each task having its own stack. Is there any simple existing code for this out there?

Re: Threads/Fibers code?

jonr — Sat, 17 Sep 2011 08:15:02 GMT

FreeRTOS would also work. Does anyone have it running with CodeWarrior on a MPC5xxx?

Re: Threads/Fibers code?

jonr — Thu, 29 Oct 2020 09:14:43 GMT

I got FreeRTOS to compile and link OK, but it doesn't actually seem to run threads. So if anyone has it working on MPC5444 or MPC 5634, pleae let me know.

  #.section ".xcptn","ax"    # The "ax" is required to generate"non-text" code  */  .section .__exception_handlers,text  .align  16

Re: Threads/Fibers code?

jonr — Fri, 07 Oct 2011 23:07:19 GMT

I ended up using CocoOS. Works great, especially after I wrote a thread to do round robin scheduling of the other threads.