Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Page 31 of 46 FirstFirst ... 21293031323341 ... LastLast
Results 751 to 775 of 1127

  1. #751

    Join Date
    Nov 2005
    Location
    Hamburg, PA
    Posts
    806
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Thanks Rob!!
    Post a small picture or schematic showing where to hook it up and extra parts needed to do it. I'm sure everyone will want to know how to do it!
    I was testing this morning on my engine. Made a few new curves and now I need a curve for a small 4 stroke. Tried the 2 stroke curves but it just throws my prop off when I rev it up, a little dangerous!
    Anyone experimenting with 4 stroke curves at all?

    John

  2. #752
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    2 stroke start at 5 degrees BTDC for easystart and go back to 28 degrees when the engine runs (100 rpm ?).
    When the engine runs, the timing go back to (race engines) 5 degrees BTDC but I think this engines to 15 or 20 degrees BTDC with full trottle.
    4 stroke start also at 5 degrees BTDC but building up the degrees to 20 degrees or more BTDC if the engine runs full trottle.

    BTW, If the flashlight is working I will post as allways the schematics and pcb's.
    CU, Rob
    http://www.electronics.gompy.net

  3. #753

    Join Date
    Jan 2002
    Location
    Hesperia Michigan, MI
    Posts
    12,519
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55


    ORIGINAL: Gompy

    There is, use the SCR output from the PIC.
    I was work on it, but you send me the CDI boards so I have to stop with the flashlights.......your fault

    I was just into town to buy some new SCR to use the strobe flashlight with Xenontube.
    When I test the first desgne, I forgot the Voltage is turn backwards when the light flash.
    The SCR don't like it and blowup, now I'allmost done with it, only findout the switching points wothout disturbe the CDI.
    Gompy...is this a good place to get this kind of thing

    http://www.microchipdirect.com/NewPr...ltree&TreeID=6
    Imagination is far more important than knowledge. Albert Einstein.

    http://www.lambertsrc.com/

  4. #754

    Join Date
    Nov 2005
    Location
    Hamburg, PA
    Posts
    806
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Rob, if I use Nyemi's 683 chip and the RCexl curve in it on my 4 stroke, the engine runs great, not so good with Jake's software though, even if I program the same basic straight line curve Nyemi's software uses, something is different.

    John

  5. #755
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    In old 4 stroke cars there was a vacume pump.
    This vacume pump move the points to early ignition.
    So the ignition wil be sooner then normal, say normal 20 degrees.
    Sooner wil mean more degrees befor TDC, say 30 degrees BTDC.......NOT less till TDC.
    If you program a straight curve, the engine will run also....if you gane somewhere around the 25 degreed BTDC.

    BTW, the differend between Neymi and Jake can be the way they calculate the position on the time table.
    CU, Rob
    http://www.electronics.gompy.net

  6. #756
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    The winner lives a cross the street where I live in 1980, thats why I know something about tuning.
    We both drive Kreidler, with the differens.....he was running a race bike (24hp) and I a street bike(9hp).
    We live about 10 km away from eache other, but he don't do anything with small bikes anymore []

    [youtube]http://www.youtube.com/watch?v=yZrZboBF8ME[/youtube]

    BTW, you can set subtitle to English.
    CU, Rob
    http://www.electronics.gompy.net

  7. #757

    Join Date
    Jun 2009
    Location
    Ga, GA
    Posts
    396
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Anyone experimenting with 4 stroke curves at all

    I do all my testing on a 4 cycle engine and the standard curves work great.
    Regards
    Charlie M.

  8. #758

    Join Date
    Nov 2005
    Location
    Hamburg, PA
    Posts
    806
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    The only way I can run my OS 61 4 stroke is with either Nyemi's curve or a true Syncro Spark module. Tried basically the same curve in Jake's and at about 3,000 rpm it backfires and the prop flies off. Not good or fun either! I am getting good at ducking flying props however. Lol

    John

  9. #759
    Nav-Aids's Avatar
    Join Date
    Sep 2012
    Location
    Winnipeg, MB, CANADA
    Posts
    50
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Help! Is the "static void interrupt isr(void)" routine called or is it just likean event handler? I can't remember how interrupts are handled in'C'but I'm sure it is just like an event handler or interrupt handler in asm.

    Ray
    Everything is easy......Once you know how.

  10. #760

    Join Date
    Aug 2011
    Location
    Moscow, ID
    Posts
    144
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    "static void interrupt isr(void)" is the interrupt service routine. It is called whenever an enabled interrupt is generated.

    Once it is called it will service one interrupt flag since I'm using an if/elseif structure. Everything happens in the ISR since the program is interrupt driven. The main loop just checks the kill and table switch pins, and services them if needed.


    -Jake
    http://www.electrofunnel.com/CDI-2012/index.htm

  11. #761
    Nav-Aids's Avatar
    Join Date
    Sep 2012
    Location
    Winnipeg, MB, CANADA
    Posts
    50
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Thanks Jake, so it works just like I thought, create a function with the interupts name and add the logic. I started geting into PIC programming a few years ago but, got side tracked by life. It's amazing how fast 'C' programming comes back, I just have to fill in a few holes.

    Ray
    Everything is easy......Once you know how.

  12. #762

    Join Date
    Oct 2012
    Location
    Wates, INDONESIA
    Posts
    1
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Hi,
    If anyone can help me.
    I want to make use ATmega8 Programmable CDI
    and the C language.
    Thank you,

  13. #763

  14. #764

    Join Date
    Jun 2009
    Location
    Ga, GA
    Posts
    396
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    John,

    Where do you have your inital timing set at?
    Regards
    Charlie M.

  15. #765

    Join Date
    Nov 2005
    Location
    Hamburg, PA
    Posts
    806
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Charlie, I set all my engines @ 28 degrees BTDC. I think I know why I have the prop problem with the 4 stroke now. Nyemi's fires after magnet leaves sensor and Jake's is set for approach. That gives it a few degrees too much advance on my 4 stroke. I knew I'd figure it out eventually. Will try reducing it to about 25 and see what happens. Not as easy on the OS since I have a disc behind the prop drive washer and have to remove it to reset timing.

    John

  16. #766
    Nav-Aids's Avatar
    Join Date
    Sep 2012
    Location
    Winnipeg, MB, CANADA
    Posts
    50
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Jake I finished reading up about the 'GIE' and the 'ISR' and have a clearer picture of things. Hopefully soon I will be able to help you with the coding, proofing, and debugging. I downloaded the 12F1840 code but haven't looked at it yet but, the 1840 sure has a lot more bells and whistles.

    Ray
    Everything is easy......Once you know how.

  17. #767
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    ORIGINAL: Nav-Aids

    Jake I finished reading up about the 'GIE' and the 'ISR' and have a clearer picture of things. Hopefully soon I will be able to help you with the coding, proofing, and debugging. I downloaded the 12F1840 code but haven't looked at it yet but, the 1840 sure has a lot more bells and whistles.

    Ray
    We don't have forget why we use the CDI for.
    A plane don't use two tables, a boat can also do without it, maybe a RC-car with two gears, but then you need a switch over.....when ?
    I think it's better to optimize the CDI, faster PIC and communication over USB or TX/RX, but only the things we need.
    Not using tables, but realtime calculation from the ignitiontime.
    Realtime communication to show ignition angle, rotation and dyno information of the engine.

    Everybody know how much time I (we) spent to get thoose things as above.
    Now we have (allmost) a real good working CDI-program, a small battle between Nyemi and Jake's program, but don't make bells and whistles please.

    First try real communication between a laptop/pc and the CDI, so we can see wat we are doing.
    Drop the tables and make realtime timing possible.
    Make it possible to change on the fly without flashing the PIC.

    After 8 or 10 years on the forum and bussy with CDI I think I know wat usfull is and not.
    Again, only positive critic and no attack to Jake or Nyemi.....I love both guys !!!
    I can't program, but as a professional user I know wat (I) they want
    CU, Rob
    http://www.electronics.gompy.net

  18. #768
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Wat went wrong....two postings ??
    CU, Rob
    http://www.electronics.gompy.net

  19. #769
    Nav-Aids's Avatar
    Join Date
    Sep 2012
    Location
    Winnipeg, MB, CANADA
    Posts
    50
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55


    ORIGINAL: Gompy

    We don't have forget why we use the CDI for.
    A plane don't use two tables, a boat can also do without it, maybe a RC-car with two gears, but then you need a switch over.....when ?
    I think it's better to optimize the CDI, faster PIC and communication over USB or TX/RX, but only the things we need.
    Not using tables, but realtime calculation from the ignitiontime.
    Realtime communication to show ignition angle, rotation and dyno information of the engine.

    Everybody know how much time I (we) spent to get thoose things as above.
    Now we have (allmost) a real good working CDI-program, a small battle between Nyemi and Jake's program, but don't make bells and whistles please.
    I know what you mean Rob, I own afamily runcompany and we make OEM type equipment for local companies but, yes we have to make sure that the core CDI unit works,is stable, and universal. As for bells and whistles, I was referring to the chip more than features that could be put into the program. Features are something for down the road later on.


    ORIGINAL: Gompy

    First try real communication between a laptop/pc and the CDI, so we can see wat we are doing.
    I really like that idea, instant feedback can be a invaluable.


    ORIGINAL: Gompy

    Drop the tables and make realtime timing possible.
    Make it possible to change on the fly without flashing the PIC.
    Do you mean, automatic timing adjust using something like an EGT for feedback? It is possible, I hope to make a standalone unit this winter for a friend of mine. The unit I'm making is for in-flight mixture control but, it could be altered for ignition. But you would still need a base-line table loaded into the PIC.


    ORIGINAL: Gompy

    After 8 or 10 years on the forum and bussy with CDI I think I know wat usfull is and not.
    Again, only positive critic and no attack to Jake or Nyemi.....I love both guys !!!
    I can't program, but as a professional user I know wat (I) they want
    I haven't seen Nyemi's program/code yet so I have no comment on it and I would never attack Jake or Nyemi unless they attack first. As for both oftheir programs, I have no intention of taking over their work and before I offer any permanent changes I will discuss it with them first for it is their work. I will offer my opinions because this is what this forum is for, and hopefully I can offer something useful. One of the biggest problems I have is end users that don't know what they want. I have 3 certified skills (Mechanic,Navigational Aids Tech, and Computer Programmer/Analyst)so I must be able to offer something. I don't know what this smilely means but it looks happy.

    Ray
    Everything is easy......Once you know how.

  20. #770
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    The programs and hardware we made can communicate realtime with the PIC.
    http://www.electronics.gompy.net/cdi/index.html
    You can change on the fly the ignition values and monitor the engine.
    But there was a problems with the program into the PIC.
    Sometimes there was a kickback or the timing was wrong.
    But thats wat we have see into the programs from Jake and Nyemi too.

    The programmer don't have a engine to test.
    He was / is not a RC-man and have do everything with simulators.
    But if I say befor and others have say it too into this topic, you can't do all into simulators.

    The programmer and I life to far away from each other to help him with real hardware.
    So the project stopped, but the PIC- and PCprogram was exactly wat I discribe.
    Thats also why I hope Jake or Nyemi can / will finish the programs we start.
    I don't have any source code, the programmer make the project free so it was his ownership.

    If we want to play, we must help each other, not hide it and raid your hobbypartner.
    Now we can all take a look into the source code and find the fault / error, or can tninking about the solution.
    I'm a fighter for opensource, thats also why you can find anything on my website, I don't have secrects.
    Our hobby cost a lot of money and anything with hobby on it cost double or tripple the money.
    CU, Rob
    http://www.electronics.gompy.net

  21. #771

    Join Date
    Feb 2010
    Location
    szarvas, HUNGARY
    Posts
    132
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Hi Gompy
    I thank you for your trust.
    I give you something.
    Solution to the problem.
    I modified , Jake code.


    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Ec87235.jpg 
Views:	13 
Size:	32.5 KB 
ID:	1814536  
    Attached Files Attached Files
    Regards nyemi.

  22. #772
    Gompy's Avatar
    Join Date
    Jul 2010
    Location
    Alkmaar, NETHERLANDS
    Posts
    404
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    I think my engine is allready running with your PIC-software.
    It's raining I don't want to test and modify the PIC for this moment.
    I don't have even the Exelsheet to rewrite the curve.
    I think I can speak for all, we hope you and Jake can make the ultimate CDI program.

    The hardware is a other isue, I'm intrested in a littlebit bigger CDI then the one who use it for RC.
    If some toy stops, there is no problem, but if my bike stops I have a long way to go......by feet !
    CU, Rob
    http://www.electronics.gompy.net

  23. #773

    Join Date
    Feb 2010
    Location
    szarvas, HUNGARY
    Posts
    132
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    I put three commands in the code.
    INTCONbits.INTF = 0; //
    INTCONbits.INTE = 0; //
    INTCONbits.INTF = 1; //
    I found it hard to figure out which location.
    Therefore, this Beta version.
    I'm still working on it.
    We need to examine all the possibilities.

    Regards nyemi.

  24. #774

    Join Date
    Jun 2009
    Location
    Ga, GA
    Posts
    396
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    Nyemi,

    I like your example of the tree and the elf sitting on the branch cutting it. that gave me a good laugh.
    Regards
    Charlie M.

  25. #775

    Join Date
    Jun 2009
    Location
    Ga, GA
    Posts
    396
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: CDI gr8flyer55

    So from the pic that you posted Nyemi, is Jake's code the Saw?
    Regards
    Charlie M.


Page 31 of 46 FirstFirst ... 21293031323341 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 02:32 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.