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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Conversions >> RE: New CDI - opensource project JMJ and Bigboat
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RE: New CDI - opensource project JMJ and Bigboat - 5/31/2007 11:16 PM   
ZAGNUT



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From: tel-aviv, ISRAEL
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quote:

ORIGINAL: dinoslmn



Second Q: who can help me about cdi "inverted" program: for low rpm (until 1500-2000rpm) spark with 0 delay and after 2000rpm spark wil advance to 24,28 or 32 deg.
This like on mechanical coupled ignition, or Falkon ignitions. Sensor /magnet will be mechanicaly positioned at 2-4 deg BTDC.


Thank,
Dino



i don't think that would be just a simple hack of the existing code. it's very easy to program a timed delay that varies based on sensed RPM but what you propose would require the MCU to "think ahead" to the next spark.....just thinking about it makes my head hurt....


dave

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RE: New CDI - opensource project JMJ and Bigboat - 6/1/2007 2:26 AM   
captinjohn


 

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Status: offline 		I also would like to find a real inexpensive magnetic pick-up ignition for a very slow running Hit& Miss engine. Thanks Capt,n

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RE: New CDI - opensource project JMJ and Bigboat - 6/1/2007 4:15 AM   
jpanhalt


 

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Status: offline 		Hi Capt,n

I love those hit and miss engines -- they don't have to do anything. I just like their sound. Used to see them at fairs in Minnesota all the time. I am not sure what you are asking , though. If you want to PM me, I would be happy to talk with you about it. Maybe I can help, particularly if you offer to give me one of yours

John

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RE: New CDI - opensource project JMJ and Bigboat - 6/1/2007 12:47 PM   
dinoslmn



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From: Netanya, ISRAEL
Status: offline 		Hi Dave,

Falkon( http://www.falkon.cz/se.htm ) make this kind of CDI and works.
BTY have you experience with PIC programing ?
Until now i finished HV section, including a nice like 3w coil, folowing yours sugestion. 6 section of 500 winds on dia 6 mm ferrite bar.
My problem is PIC side. made a programer, but when i apply 5v DC , the circuit auto-oscilated and flash LED blink non stop.

Sugestions?

Dino

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< Message edited by dinoslmn -- 6/1/2007 1:08 PM >

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RE: New CDI - opensource project JMJ and Bigboat - 6/1/2007 11:38 PM   
jpanhalt


 

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Status: offline 		Programming a chip for someone who has done it before is no big deal. For someone who hasn't done that, it can be a challenge. You have a nice project going. Why take on a second. My suggestion is to find someone who has programmed a chip and get their help. You could post locally and ask for help, or just call a local tech school, college, ham operator, etc. I emphasize that it is really a trivial thing to do, once you are set up to do it. I would do it for you, if it weren't for the problems of shipping. John

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RE: New CDI - opensource project JMJ and Bigboat - 6/2/2007 7:37 AM   
ZAGNUT



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From: tel-aviv, ISRAEL
Status: offline 		i can burn a pic17 for microstar use but that's it....everytime i look into other pic projects the endless list of DIY programmers and software out there just gives me a headache.

you might try this guy for some advice or help: http://www.controlgs.com/ never dealt with him myself but know some that have, and they only have good things to say about him. at the very least he'll be able to point you in the direction of a good shop/lab that'll burn the pic for you. these places do exist here just never looked them up.

BTW, how is the coil working for you?




dave

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RE: New CDI - opensource project JMJ and Bigboat - 6/2/2007 11:07 AM   
Bigboat


 

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quote:

ORIGINAL: dinoslmn
My problem is PIC side. made a programer, but when i apply 5v DC , the circuit auto-oscilated and flash LED blink non stop.


Do you set the jumpers on the timerboard ?
The two jumpers are made for testing the ignition without a rotating engine.
One jumper is low rpm, the other high rpm.


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RE: New CDI - opensource project JMJ and Bigboat - 6/2/2007 11:14 AM   
dinoslmn



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Status: offline 		Hi Dave,

Thanks for info.
The coil works very good. When i connect V+ to tyristor gate , i optain a very strong spark. Better than my original 3W or CH ignitions.

I will try to contact this guy.

Dino

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RE: New CDI - opensource project JMJ and Bigboat - 6/3/2007 12:09 AM   
Bigboat


 

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Status: offline 		Look for this coils *High Voltage Pulse and Trigger Transformers* on http://www.amazing1.com/transformers.htm

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RE: New CDI - opensource project JMJ and Bigboat - 6/3/2007 12:26 AM   
Bigboat


 

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Status: offline 		A very good picprogrammer http://www.tecmb.com/ and easy to build
It's trhe same programmer of the MicroChip PicKit2 and use the same software.
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en023805


< Message edited by Bigboat -- 6/3/2007 12:32 AM >

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RE: New CDI - opensource project JMJ and Bigboat - 7/15/2007 10:13 PM   
Mitty



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Status: offline 		I was looking at building programmer once.
Then ended up buying one professionally made for 12$ on ebay.
Shiping ws like $2 so for $ 15 I had no pita .

quote:

ORIGINAL: venomxx

one last post before i go to sleep..it is 3am here.

On the programmer, it reads okay but when programming it got errors. im like
Should I just build another programmer ?
this really stunk.



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RE: New CDI - opensource project JMJ and Bigboat - 7/15/2007 11:03 PM   
captinjohn


 

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Status: offline 		Mitty: Where can I find a circut kit or board for a Buzz coil type ignition? Thanks Capt,n

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RE: New CDI - opensource project JMJ and Bigboat - 7/15/2007 11:14 PM   
Bigboat


 

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Status: offline 		I hope to get within one or two weeks a *normal ignitioncoil, ordered in USA.
It's a very small coil for high performance sparks.
If I get the coil, I'll see if I can change the ignitionboard.
Also the special HV-coil have to be change, for some it's impossible to make this coil.....
Maybe I can find for this coil also a normal coil who you can buy in the stores.
For the programs we have to find someone who can change the 3 programs into one program.
We know, it's not easy to use all this programs if you don';t know anything of programming.
BUT, it's a opensourse project.........we can use all the help we can get.

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RE: New CDI - opensource project JMJ and Bigboat - 7/22/2007 11:25 PM   
marian2784



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From: kazanlak, BULGARIA
Status: offline 		I am new to this forum and want to excuse me for my bad english.
i am trying to find circuit for cdi and now i've found it,thanks of you.
first i want ask if i can use the Voltage converter of the first project and Timing circuit of this one
second for making higher voltage can i use higher voltage for power suply(9V) only for Voltage converter
thanks first

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RE: New CDI - opensource project JMJ and Bigboat - 7/23/2007 5:49 PM   
Bigboat


 

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quote:

ORIGINAL: marian2784
first i want ask if i can use the Voltage converter of the first project and Timing circuit of this one


Both HVs are allmost the same, yes you can use it.

quote:

second for making higher voltage can i use higher voltage for power suply(9V) only for Voltage converter


NO !
You will burn the transistor and coils.


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RE: New CDI - opensource project JMJ and Bigboat - 7/25/2007 10:27 PM   
marian2784



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From: kazanlak, BULGARIA
Status: offline 		i am waiting for components but yesterday i've tried to make c code with exelsheet but nothing when i am pushing the "create c code" the table opens in C++ and nothing else.
I can't see the time curve in the c code(http://www.modelbouw.gompy.net/newcdi/testfunc_C.zip),is it exist or must put it in somehow?
which programs must been used for this

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RE: New CDI - opensource project JMJ and Bigboat - 7/25/2007 10:40 PM   
Bigboat


 

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Status: offline 		In the C-code there is no timingcurve, only the code to generate the timing to make a curve.
Please ready the complete topic to understand wat we are doining.

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RE: New CDI - opensource project JMJ and Bigboat - 8/22/2007 10:59 AM   
acus


 

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Status: offline 		can u explain using the time curve in excel...in the curve say in 1831 rpm delay degree 25 what is mean 25 degree..?? 25 degree before tdc..?

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RE: New CDI - opensource project JMJ and Bigboat - 9/19/2007 2:01 PM   
iura


 

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From: tbilisigeorgia, GEORGIA
Status: offline 		hi all.Thanks a lot Bigboat for this project it veri good. I made it and OK! I use the 16F84 ver. and I have one Q.in test mode I can't activate pin.9(STROBE),it did't worke in test.
I want to use it to stop 555 timer (HV generator) while the SCR is open.From the hallsensor it workes good. Can u make any correction in program to solve the problem?

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RE: New CDI - opensource project JMJ and Bigboat - 9/19/2007 9:21 PM   
Bigboat


 

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Status: offline 		Uhhhhh....strobe isn't pin9 but pin10...... http://www.modelbouw.gompy.net/cdi/ont1a.jpg

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RE: New CDI - opensource project JMJ and Bigboat - 9/20/2007 7:18 AM   
iura


 

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Status: offline 		Sorry but I think u are wrong. This is fragment from Zenoah2.asm on http://www.modelbouw.gompy.net/newcdi/newcdi.htm.Strobe is on pin.9.Maybe mistake?
#DEFINE rotor PORTA,3 ; [pin2]= sensor input
#DEFINE coil PORTB,0 ; [pin6]= output to coil
#DEFINE revcoil PORTB,2 ; [pin8]= reverse output to coil
#DEFINE rpmmax PORTB,1 ; [pin7]= Min and Max RPM led
#DEFINE led PORTB,7 ; [pin13]= pickup led
#DEFINE strobe PORTB,3 ; [pin9] = strobe light output
#DEFINE test PORTA,4 ; [pin3] = test jumper input

;==========================================================================
;==========================================================================

;
; RA2 1+--O--+18 RA1
; pickup36°-----------> RA3 2| |17 RA0
; test jumper---------> RA4 3| |16 Osc ------ 4MHz
; +5V--+----R---------> MCLR 4| |15 Osc ------ Quartz
; Ground--------------- Vss 5| |14 Vcc ------ +5Vdc
; Thyristor <------- RB0 6| |13 RB7 ------>PickupLED
; LEDrpmLimit <------- RB1 7| |12 RB6
; ReverseOutput<------- RB2 8| |11 RB5
; Strobe<-------------- RB3 9+-----+10 RB4

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RE: New CDI - opensource project JMJ and Bigboat - 9/20/2007 7:22 AM   
iura


 

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Status: offline 		Sorry this linkhttp://www.modelbouw.gompy.net/cdi/cdi.htm

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RE: New CDI - opensource project JMJ and Bigboat - 9/20/2007 5:22 PM   
Bigboat


 

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Status: offline 		I found the problem, the downloadlink to the asm-code was wrong.
I change the downloadlink for you, download http://www.modelbouw.gompy.net/cdi/Zenoah2.asm for the right code.

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RE: New CDI - opensource project JMJ and Bigboat - 9/20/2007 8:30 PM   
iura


 

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Status: offline 		Ok! I convert .asm into .hex,but the problem is the same.In nomal mode I have strobe on pin.9 and not on pin.10 as u sade. Ok! In test mode not any output (strobe) on pin9,pin10 too.This is same as SOURCE on original site ,only timetable is new.My Q is:is it posible to activate strobe in test mode?

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RE: New CDI - opensource project JMJ and Bigboat - 9/20/2007 9:02 PM   
Bigboat


 

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Status: offline 		I Think this will solved your problem.
I don't know why you will have strobe in testmode ?

;===================JMJ================================
;Test routine, sends ignition pulses to the thyristor at 4hz/140hz,
;selectable by rotor input.
testdelay
; btfss test ; checks the jumper to disconnect test mode
; goto start
bsf rpmmax
bcf led

btfss rotor ; checks hall device. slow test if low, fast test if high
goto slowtest
goto fasttest

slowtest
bsf led
; Delay = 0.005 seconds
; Clock frequency = 4 MHz
;4998 cycles
movlw 0xE7
movwf d1
movlw 0x04
movwf d2
Delay_0
decfsz d1, f
goto $+2
decfsz d2, f
goto Delay_0
goto $+1
goto trigger ; triggers the thyristor
goto testdelay


fasttest
bsf led
; Delay = 0.3 seconds
; Clock frequency = 4 MHz
;299998 cycles
movlw 0x5F
movwf d1
movlw 0xEB
movwf d2
Delay_1
decfsz d1, f
goto $+2
decfsz d2, f
goto Delay_1
goto $+1
goto trigger ; triggers the thyristor
goto testdelay

trigger
bsf coil ; set output
bcf revcoil ; set reverse output
bcf strobe
; Delay = 0.002 seconds
; Clock frequency = 4 MHz
movlw 0x8F
movwf d1
movlw 0x02
movwf d2
Delay_3
decfsz d1, f
goto $+2
decfsz d2, f
goto Delay_3

;2 cycles
goto $+1

bcf coil
bsf revcoil
bcf strobe
goto testdelay
;
;=============================End JMJ=============================
end

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Conversions >> RE: New CDI - opensource project JMJ and Bigboat
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