Searching \ for '[SX] Request for suggestions of projects to demo S' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/ubicom/devices.htm?key=sx
Search entire site for: 'Request for suggestions of projects to demo S'.

Exact match. Not showing close matches.
PICList Thread
'[SX] Request for suggestions of projects to demo S'
2005\08\18@141905 by John Kauffmann/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, John Kauffman wrote:

http://www.parallax.com/sx/sxb_examples_apps.asp. Although they are great for demo of SX/B code, I think some could be done in STAMP (for example the rolling dice). The multiplexing demos may be right for demonstrating interrupts.

I am very interested in suggestions from this forum for demos of the above list of features (or other features that you might suggest). Thanks.
---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@145410 by Coriolisn/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:

The biggest complaint I have seen from stamp users about the BS platform are 1) no interrupts and 2) single threaded.

While the SX isn't multithreaded, use of ISR in such a fast processor can make it appear as if it is multithreaded. The single most asked question is generating servo pulses for more than one servo simultaneously, something that is very difficult in a stamp.  Bean's 16 channel PWM/servo controller in the Projects forum is an excellent basis to show this functionality. Jon's Midi receiver (also in the project forum) is a good example how processes can occur in the background (receiving midi commands in his project). A program to show the usefulness of the speed of the SX processor is Jon's encoder project[/u>,]

I tried to find a good example of interrupts in the SX, but the closest I could find was Peter Van der Zee's Preemptive RTOS. But this was written in assembler and uses the RTCC interupt rather than an example of an external interrupt system I was looking for.


BTW, its an honor to have such an esteemed author as an active member of the forums.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84837
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@150052 by John Kauffmann/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, John Kauffman wrote:

Thanks Paul, those are good suggestions.

The counting demo should be great. That reminds me of a demo I do where a transistor and relay are sent the same hi-low pulse train and the two switch's outputs are shown on two 'scope traces. As the input frequency increases the transistor does fine while the relay starts to break up and then goes into a catatonic stutter.

As to writing books; it is just a job, nothing esteemed about it. I'm just introducing new people to the techniques developed by the real pros like yourself and the guys on this forum.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84839
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@153913 by Peter Van der Zeen/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Peter Van der Zee wrote:

Hi John;
I think the biggest reason for SX vs Stamp is as Paul said; the apparent ability to do more than one thing at a time, ie multi-tasking.

An excellent example would be to receive a string of UART numbers from a keyboard or a quadrature pulse encoder WHILE displaying them in multiplexed form on a multi-digit 7 segment display.

This can readily be done using the simple non-preemptive RTOS example I posted on March 29. The more complicated preempive RTOS is not required, and for educational purposes probably not desired for such a simple application.

Cheers,
Peter (pjv)
---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84843
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@155913 by John Kauffmann/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, John Kauffman wrote:

Thanks Peter. I'll look that one up.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84848
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@165631 by James Newtonn/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, James Newton wrote:

I think the raw speed is the biggest difference. I would suggest some of the single chip video projects like bean's little text generator, or the servid from sxlist.com or rickard gunee's (sp?) color(!) video games. Perhaps some DSP applications.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84851
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@170356 by beann/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

John,
 Check out the SX design contest entries. Like that cool video module ;) try doing THAT with a stamp.
Bean.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84853
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@175445 by John Kauffmann/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, John Kauffman wrote:

I've thought about your video mod quite a bit. I agree, it is a great demo of speed but I was hoping for a simpler way to demo speed, like a display of a hundred or so measurements in the time it took STAMP to do one. Or a timing a fast action that would give a good result with the SX but a nonsense value with the STAMP.

I ended up thinking the video module was best (for my puposes) as a demo of how to use the sx together with the STAMP. In some ways the same, but without a demo of what is under the hood that the SX is doing. Just view it as
---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84855
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

2005\08\18@185817 by johncouturen/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, johncouture wrote:

John,
I'd love to see your results / class notes when you are done!  
1) The thing that comes to my mind first is COST.  Once you pay for the SX-Key, each subsequent chip is only about $5.  Or, Parallax has a new prototype board for the SX52 for under $10 (http://www.parallax.com/detail.asp?product_id=45304).  Think about the possibilities of that at 100mhz!  
2) One thing I am looking into is to turn a SX52 into a web server.  That violates your part count and it needs to be done in assembler but you could show what the top end of the scale is.  Peter Verkaik pointed me to the SXList (http://www.sxlist.com/techref/ubicom/virtperf.htm) that has a whole bunch of fun stuff including the web server.  
3) Reduced part count to do things like ADC / DAC
---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=84834#m84861
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

More... (looser matching)
- Last day of these posts
- In 2005 , 2006 only
- Today
- New search...