AVR-Chat

Is this for your model railroad Chuck?  If so, that isn't a hobby...it's 
an obsession.


REB


Chuck Hackett wrote:

>Gentlemen,
>
>I am looking for an RTOS to "standardize" on in my (hobby) work with AVRs.
>
>I would like to find an RTS that is "full-featured" with things like tracing
>(to a serial port, etc.), inter-task messaging/signaling, etc.  It would be
>nice if features were optionally compiled/linked in to control runtime
>memory usage.  
>
>I'm not sure if I really need preemptive scheduling in addition to
>cooperative scheduling but it would be nice to have the option.  I would
>need the ability to support interrupt driven IO but I assume they all do
>this through buffers and mutex (P, V, etc.) or some kind of inter-task
>messaging/signaling.  Open-source is a big plus.
>
>I am familiar with OS's large and small and I have written (non-preemptive)
>multi-tasking environments for other processors but I'd rather not re-invent
>the wheel ... I'd rather get on with what I want to do at the application
>level :-)
>
>My current applications use general communications (UART, not bit-bang),
>data logging and control.  I don't currently have any requirements for very
>low latency or high interrupt rates other than that required for interrupt
>driven communications and ADC sampling (rates in the 1 to 10 per second
>range), etc.
>
>The current hardware environments are EtherNut board and a Mavric board from
>BDMicro.
>
>I'm currently looking at:
>
>1) "NutOS" because I'll be using that on an EtherNut board.  As far as I
>know so far, it does not support preemptive multi-tasking.
>
>2) "FreeRTOS" (http://www.freertos.org/a00098.html) which looks interesting
>and optionally supports preemptive scheduling.
>
>Am I going astray?  Are there others I should consider?
>
>Thanks in advance ...
>
>Oh, also, I am NOT a student working on a project due tomorrow :-)
>
>Regards,
>
>Chuck Hackett
>  
>