rtos needed for 16f877a

[nikhil]

we are trying tobuilding an rtos around picdemo board from microchip...but arent succeding so far ...if something exists please help!!...really urgent help needed
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This message was ported from CCS's old forum
Original Post ID: 13705

[PCM programmer]

:=we are trying tobuilding an rtos around picdemo board from microchip...but arent succeding so far ...if something exists please help!!...really urgent help needed

<a href="http://www.pic-c.com/forum/general/posts/1717.html" TARGET="_blank">http://www.pic-c.com/forum/general/posts/1717.html</a>

Google also gives a lot of links to possibly useful code:
<a href="http://voodooz.no-ip.org/robotics/source/TEF2001/" TARGET="_blank">http://voodooz.no-ip.org/robotics/source/TEF2001/</a>
<a href="http://www.microchipc.com/Hi-Tech_C_multitask.htm" TARGET="_blank">http://www.microchipc.com/Hi-Tech_C_multitask.htm</a>
<a href="http://fse.bc.ca/Calvin20.html" TARGET="_blank">http://fse.bc.ca/Calvin20.html</a>

It seems like half the questions on this board can be answered
with "add NOLVP to the #fuses statement" or "Use Google".
<a href="http://www.google.com" TARGET="_blank">http://www.google.com</a>
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This message was ported from CCS's old forum
Original Post ID: 13715

[dyeatman]

<font face="Courier New" size=-1>my apologies</font>
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This message was ported from CCS's old forum
Original Post ID: 13738
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Google and Forum Search are some of your best tools!!!!

[dyeatman]

I am sure I will raise some ire here by posting this but I have spent many hours researching and going out of my way to avoid bringing issues to this board that were off topic.

It used to be the standard response on this board to non-CCS issues was: "This board is for CCS compiler users and questions related to the CCS compiler only"

Over time the horizons have broadened and the word has gotten out that the folks here will help with most any question all the way to: What is the ANSI C standard!!!! like that has anything to do with CCS.... There are numerous other C programming forums out there...why are we getting these screwy questions?

I am an instructor/designer, and there are times I say to my students that the subject is too off topic and needs to be addressed elsewhere. This is the INTERNET and this board is NOT the only resource. Before the WWW we had to REALLY work to locate information and didn't have all the tools that are available now. Why do we have to repeatedly tell people to use the search tools! All these off topic questions are taking advantage of folks like PCM, Hans, Sherpa etc. who are gracious enough to lend their expertise and time for CCS issues. I, for one GREATLY appreciate them and don't want to burn out a valuable resource!!

Sorry folks, my 2 cents worth.....I am off my soapbox now, thank you to all you who make this a GREAT user forum and for indulging my venting.
Dave
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This message was ported from CCS's old forum
Original Post ID: 13740
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Google and Forum Search are some of your best tools!!!!

[Jon Fick]

<font face="Courier New" size=-1>(Like Dave, I'll also probably raise some ire!)

I returned to college at age 29 to finish my third and fourth year. As I went through the courses and labs and dealt with the various assignments and term projects assigned to electrical engineers, I finally figured out that sheer knowlege is only part of what a student gains; perhaps the more important part of any schooling is learning HOW to think and solve problems. Why didn't I understand that at age 18?

I maintain a web site that is filled with PIC projects developed using the CCS compiler. From emails that come in through my web site and from posts in this forum, it's pretty obvious when a student comes looking for easy answers. When I get such requests I simply delete the email, unless it's obvious that the student has already put some in some sweat and clearly done some homework. In those cases I'm quite happy to provide a couple of sentences of hints because that's part of the engineering process! We build on what has been developed before.

Why is this important? Because when young electrical and software engineers come knocking at the door looking for jobs, I hope I can identify those who have learned HOW to think and HOW to solve problems. I'm doing my best to help that along.

My web site is <a href="http://www.VermontFicks.org/pic.htm" TARGET="_blank"> <a href="http://www.VermontFicks.org/pic.htm" TARGET="_blank">http://www.VermontFicks.org/pic.htm</a></a>
One page is specifically written to students (graciously, I hope.) <a href="http://www.VermontFicks.org/students.htm" TARGET="_blank"> <a href="http://www.VermontFicks.org/students.htm" TARGET="_blank">http://www.VermontFicks.org/students.htm</a></a>

Jon Fick
</font>
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This message was ported from CCS's old forum
Original Post ID: 13759

[sar]

So, Jon....
I'm not a student, just a hobbiest type and have loked at your code and have compiled some and used it. Everytime though, there were errors in your posted code. Do you purposely introduce errors on your web site for the reasons you described in your above post? It always took me awhile to figure out the errors and then they compile correctly.
Just wondering??? SAR
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This message was ported from CCS's old forum
Original Post ID: 13763

[Jon Fick]

Fair question. And an honest answer. No, I don't introduce anything in the code to throw in curves. It's a genuine attempt simply to share what I've done.

I've only ever been made aware of a few errors in several years. My assumption is that there were none, or that hobbiests who use them simply corrected them and move on. (Sounds like you were in the second category.)

The "bug" reports that I do get have more to do with LCD interfacing than anything else. It's usually that the LCD is not a compatible display, or that their contrast is misadjusted so everything works but they see nothing.

It might help to understand that I simply publish projects that I've made for myself, and after the usual debug and improvement cycles, everything works fine for my purposes. And, that's the key...they were designed to work for me. With few exceptions, that's as far as they went. In a couple of cases, I took the requests or suggestions from other hobbiests to improve a design for all concerned. But, the projects go into my web site in working condition, compiled with my version of PCM, which was 2.6xx, and more recently with PCW. I wonder if the multitude of compiler versions is the culprit here. Admittedly I haven't exercised any version control.

I'd sure be interested to see your errors the next time you encounter them. And thanks for the alert.

Jon





:=So, Jon....
:=I'm not a student, just a hobbiest type and have loked at your code and have compiled some and used it. Everytime though, there were errors in your posted code. Do you purposely introduce errors on your web site for the reasons you described in your above post? It always took me awhile to figure out the errors and then they compile correctly.
:=Just wondering??? SAR
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This message was ported from CCS's old forum
Original Post ID: 13773

[jasonpeixoto]

Hi

I have completed various version and options of a RTOS for hitech.
I am looking at CCS as they now support pointers to functions.
in asembler it starts of 51 bytes in size the smalletst version.
To 130 bytes with tick nad delays to 201 bytes with events + semaphors.
I shall kepp you all updated.

Jason Peixoto
jason@20megs.com

[Humberto]

dyeatman wrote:

[Neutone]

[jasonpeixoto]

[Guest]

[Humberto]

Jason Peixoto wrote: