RTOS using CCS Compiler

masterchief · Guest

Do you guys know if there is a free (or not free) RTOS using the CCS compiler???

I have been working on a FreeRTOS(.org) port using the CCS compiler.
Right now, there is a bug is the saving/restoring the context. (a stack under flow error)

Anyway, If you are interrested in helping me make a CCS port to this RTOS, that would be great.

njouyep@hotmail.com

Haplo · Joined: 06 Sep 2003 Posts: 659 Location: Sydney, Australia

kender · Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley

There's also a chance that CCS' RTOS is vaporware.

Nick

Tom-H-PIC · Joined: 08 Sep 2003 Posts: 105 Location: New Castle, DE

First of all CCS doesn’t put dates on the news items on the web page so new people looking at the news item has no clue that it is all most a year old.
The first email that I sent CCS to be part of the beta testing was on 2-11-04.
I have sent some emails asking the status of the project and the replies that I get are we are working on it at this time; it is not ready for beta testing.
Not to be slamming CCS to hard I think that they have a good product line.
The ROTS for the PIC is going to be a hard project to pull off. That is why we don’t have one at this time.
But the bottom line is I agree with Kender that the ROTS from CCS for the PIC is vaporware!

TSchultz · Joined: 08 Sep 2003 Posts: 66 Location: Toronto, Canada

I have normally written real time applications using a home brew pseudo task engine that runs in an endless loop. With carefull optimization of the underlying routines and some thought to the overall structure, near real-time processing can be acheived.

I have looked at RTOS systems but have never used one on the PIC. I have sucessfully used RTOS's on other architectures.

The free RTOS looks quite good. I am currently playing around with it on the MSP430, but it is too early to say much.

Here is link to the free RTOS port for the PIC18.
http://www.freertos.org/a00097.html

I have never used it, but I would think that porting to CCS should not be too difficult.

mhahn@hvc.rr.com · Joined: 03 Jan 2005 Posts: 9 Location: upstate NY

I just posted a very simple rtos (more of a task scheduler really) I recently ported to the PIC. Go check out the library forum for the details.

The version posted is an early version. The code still needs some cleaning up. It seems to work pretty well, but I still need to do some performance measurements etc. Please do not assume it is bullet-proof code ready for mission critical applications.

Enjoy

Mark R Hahn