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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Conversions >> RE: CDI gr8flyer55
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RE: CDI gr8flyer55 - 12/10/2012 10:16 PM  1 votes
gr8flyer55


 

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Status: offline 		Hi Rob.
I was just thinking out loud I guess. That schematic looks familiar, hmmmmmm.
I guess you can have your reset Rob. LOL.
I will just use a jumper, or not.


So, I was testing some new curves today and found that if I pull the reset jumper off while the engine is running, it shuts off the engine, so that means it is functioning Rob, just kind of backwards huh?
Shouldn't it work the other way? If you ground it, it should reset? I'm confused now. Last version of the code it made no difference, jumper on or off, it kept on sparking. Not with this version B software. Maybe he already fixed it?

John


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RE: CDI gr8flyer55 - 12/10/2012 10:26 PM  1 votes
Gompy



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Status: offline 		You have change line 46 ?

__CONFIG(FOSC_INTOSCIO & WDTE_OFF & PWRTE_ON & MCLRE_OFF & CP_OFF & CPD_OFF & BOREN_OFF & IESO_OFF & FCMEN_OFF);

To

__CONFIG(FOSC_INTOSCIO & WDTE_OFF & PWRTE_ON & MCLRE_ON & CP_OFF & CPD_OFF & BOREN_OFF & IESO_OFF & FCMEN_OFF);

Now reset is active (MCLRE_ON)

Change it only into the 12F683 code.

Pin 4 isn't a jumper anymore if you change the line, but a moment switch NO.
Why I want a RESERT, because I test and sometimes the PIC need to be a reset.
In to the code it isn't use, why don't we use it....only if it is a reset, but now we do somrthging with it.

BTW, you don't like the output to the HV-board of the schematic into my last post ?

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RE: CDI gr8flyer55 - 12/10/2012 10:41 PM  1 votes
gr8flyer55


 

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Status: offline 		Yes rob I like the schematic just for me. Thanks. I edited my reply above, but I guess you missed it. Your pretty fast on the keyboard these days!!

John


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RE: CDI gr8flyer55 - 12/11/2012 1:39 PM  1 votes
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Status: offline 		Ok Rob, ....You...... have a reason for a reset. This is why I like open source.

Ray

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RE: CDI gr8flyer55 - 12/11/2012 5:00 PM  1 votes
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Status: offline 		17,500 rpm - 271 Volt - 1 Ampere - 72 mJ



< Message edited by Gompy -- 12/11/2012 5:44 PM >

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RE: CDI gr8flyer55 - 12/12/2012 1:22 PM  1 votes
Gompy



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Status: offline 		There is a problem with the max rpm, at 12,500 the timer jumps to somewhere 90 degrees BTDC.
I use the standard table like it is into the Exel-file from the website.

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RE: CDI gr8flyer55 - 12/12/2012 3:36 PM  1 votes
gr8flyer55


 

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Status: offline 		Sounds like maybe a math error in the current revs loop in the program lookup table. Time for Jake to take a serious look at the program to find a cure. I only tested to 10,500 rpm so never got to the problem area. Good thing you tested higher Rob !!

John


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RE: CDI gr8flyer55 - 12/12/2012 3:48 PM  1 votes
Gompy



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Status: offline 		More problems, if I program a straight line of 30 degrees, the the timing will be 10 degrees more at higer rpm.
I use both, a hallsensor and a optosensor with a 5 degrees angle, but with the a real flashlight the timing is wrong.
It starts good untill 1000 rpm, but when I speed up it goes wrong.
The timing looks like a 4 stroke......30 degrees BTDC at 1000 rpm will be 40 degrees BTDC at 6000 rpm.

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RE: CDI gr8flyer55 - 12/12/2012 6:14 PM  1 votes
gr8flyer55


 

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Status: offline 		I agree with you Rob, there is definitely something going wrong in the program for it to cause this. Have you tried the version before version 1.0 to see if it is just the latest version?
The version I ran on the B board is the older one before 1.0 and didn't see this happen to it. I used my timing light and it was tracking rpm and advancing like it should. Must be the new version at fault.
I jumpered pin 8 on the pic to ground on the back of the board to fix the board problem you told me about and that fixed the reset jumper problem not working. Now one last glitch with version 1.0 for the 683 chip and maybe we will be ok again. Always something isn't it? Lol
BTW Rob, have you set the hall sensor degrees in the setup settings? Jake had it default to 49 degrees for his setting in the excel sheet. I changed that setting to 32 degrees for my curve setup on the sheet. Didn't have any problems after that with the older version before 1.0 .


John


< Message edited by gr8flyer55 -- 12/12/2012 6:45 PM >

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RE: CDI gr8flyer55 - 12/12/2012 6:26 PM  1 votes
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RE: CDI gr8flyer55 - 12/12/2012 6:41 PM  1 votes
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Status: offline 		Rob, are the timing tables loaded the same?

Ray

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RE: CDI gr8flyer55 - 12/12/2012 6:51 PM  1 votes
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Status: offline 		Curve 1+ 2

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RE: CDI gr8flyer55 - 12/12/2012 8:53 PM   
gr8flyer55


 

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Status: offline 		Ray, now that you have one of the working timer boards, program a 683 chip with the setup specs and Rob's curve and see what you get for results. I just tried version 1.0 software and am not seeing the problem Rob is seeing. More eyes on a problem may see what is causing it. I know if I type in my start up setting for hall position on the engine at 32 degrees, eliminating Jake's setting of 49 degrees, it works for me. Unless there is another glitch somewhere, this setup works on my running engine tracked with a timing light up to 8,000 rpm's. Check if you can and let us know what you find.

John


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RE: CDI gr8flyer55 - 12/12/2012 9:01 PM   
gr8flyer55


 

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Status: offline 		Rob, in the screenshot you posted of the curves, how did you get all the ## symbols in the degree and rpm blocks? Mine looks. Nothing like that. Mine has all blocks filled with numbers , whether it's degrees or rpm figures.
Doesn't look right to me.

John


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RE: CDI gr8flyer55 - 12/12/2012 9:05 PM  1 votes
Gompy



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Status: offline 		You have te use M$ 2010, all others don't work.

BTW,

You need more then 40 degrees BTDC if the engine run faster then 8,000 rpm.
The SCR puls is 300 usec long, 100 usec is more then enough, but 300 usec = ~20 degrees.
With 30 degrees advance this will be 50 - 55 degrees BTDC you have to fix the hallsensor.

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RE: CDI gr8flyer55 - 12/12/2012 10:33 PM  1 votes
gr8flyer55


 

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Status: offline 		I use Microsoft office 2007 and have no problems. Everything in your display looks a lot different than mine. Lets ask Jake what he is using to write the excel sheets. Could be there is a flaw somewhere we are overlooking.

Ray, what version are you using?

John


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RE: CDI gr8flyer55 - 12/12/2012 11:50 PM  1 votes
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quote:

ORIGINAL: gr8flyer55

Ray, now that you have one of the working timer boards, program a 683 chip with the setup specs and Rob's curve and see what you get for results. I just tried version 1.0 software and am not seeing the problem Rob is seeing. More eyes on a problem may see what is causing it. I know if I type in my start up setting for hall position on the engine at 32 degrees, eliminating Jake's setting of 49 degrees, it works for me. Unless there is another glitch somewhere, this setup works on my running engine tracked with a timing light up to 8,000 rpm's. Check if you can and let us know what you find.

John



Hopefully I can run it tonight, if not then it will be tomorrow.

Ray

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RE: CDI gr8flyer55 - 12/12/2012 11:51 PM  1 votes
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quote:

ORIGINAL: gr8flyer55

I use Microsoft office 2007 and have no problems. Everything in your display looks a lot different than mine. Lets ask Jake what he is using to write the excel sheets. Could be there is a flaw somewhere we are overlooking.

Ray, what version are you using?

John



I use 2007 but, can use 2003 if need be.

Ray

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RE: CDI gr8flyer55 - 12/13/2012 12:56 AM  1 votes
gr8flyer55


 

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Status: offline 		Ray, I just thought his screen shot looked odd with the ## symbols in place of the numbers that should have been displayed.
I've been running the excel sheets for a long time here and never saw anything like it. He must be pulling his hair out trying to sort this problem out.
I'm repairing some CDI boards tonight for customers, but will keep an eye on the forum for developments.

John


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RE: CDI gr8flyer55 - 12/13/2012 8:20 AM  1 votes
bluejets


 

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Status: offline 		Think you'll find the program requires at least 2007 excel.

## marks usually mean the parameters of the particular field have been exceeded.


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RE: CDI gr8flyer55 - 12/13/2012 2:11 PM   
gr8flyer55


 

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Status: offline 		Jeff, I think you hit the nail on the head this time !
I tried putting high numbers in those locations and got the same results as Rob did. When programmed and tested, it did what Rob experienced, wrong timing advances. Looking at the curve data in the misprogrammed numbers showed out of limit data figures which will cause the problems experienced.

John


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RE: CDI gr8flyer55 - 12/13/2012 2:22 PM   
Gompy



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Status: offline 		I just find the problem I think.
With the copy code button there will be no code copyed.
If I copy the code by hand right into the MPlabs c-file there is no problem.

Tableswitch is not working too with using the buttons into the sheet.

There is also a line not right into the 12F683 code
OPTION_REG = 0b00000000; // pullups on, falling edge, Tmr0

It must be:
OPTION_REG = 0b10000000; // pullups off, falling edge, Tmr0

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RE: CDI gr8flyer55 - 12/13/2012 3:41 PM  1 votes
gr8flyer55


 

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Status: offline 		If this is true Rob, then Jake has more work to do. If I press the copy code button on the spreadsheet and paste it into notepad in windows, it copies code to notepad. Not sure what you are getting. I did it with notepad already open if it makes a difference, I don't know. The 683 code does need editing before you can compile it to hex. I change things manually, save it and then run the compiler program. Things do need to be fixed correctly though so we don't have to do this.

John


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RE: CDI gr8flyer55 - 12/13/2012 3:50 PM  1 votes
Gompy



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Status: offline 		I just copy the complete (?) code into MPlabs and make a new c-file.

But the tablegenerator generate negetive values, thats not possible.

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RE: CDI gr8flyer55 - 12/13/2012 8:33 PM  1 votes
Gompy



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Status: offline 		Oeps.....

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