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  1. #101

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    RE: CDI gr8flyer55

    John,
    I changed the curve by changing values in the table between 1600 rpm and 7500 rpm. With the values I put in, this resulted in the curve changing to a dead straight line between the 2 points. If it works i.e. changes the delays like I think it should, I give you a rundown on how to do it.
    Doesn't work by trying to drag the curve as far as I am aware.
    Transistor, I did not use 2N4401, I think maybe BC547 so that might be why I showed it a-about. I thought I checked that..mmm.ok
    Either way, I did have it connected the right way but i will change it to show your transistor.
    Ok..cheers...Jeff

  2. #102

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    RE: CDI gr8flyer55

    Re-transistor...yes, just checked, used BC547 so thats why in the pic of my board, Q2 has flat the other way. Connections are correct though.


  3. #103

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    RE: CDI gr8flyer55

    That's what I figured you did Jeff, made a substitution and it worked for you. Overlay looked excellent!
    Is it ok to post the files after I convert to PDF format?
    I believe everything else is correct in all the other files. Let me know when you have the edit sequences perfected for the curves. I'll test that here on my plane to make sure it'll give the performance figures I am expecting in idle, transition and top rpms. My test engine (a 25cc weedeater engine) reflects changes pretty well when testing.

    John


  4. #104

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    RE: CDI gr8flyer55


    ORIGINAL: gr8flyer55

    Is it ok to post the files after I convert to PDF format?
    Yes, I think a few might be wanting to see your successful project.

    Cheers...Jeff

  5. #105

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    RE: CDI gr8flyer55



    hi john thanks for share. i want to make your cdi. can you sent me files?.i have asp .61 two stroke glow engine and i want to conversion gasoline.





    best regards...





    kemal


  6. #106

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    RE: CDI gr8flyer55

    I will try to post files here. Been having alot of trouble lately even logging onto RCU. The software will be posted first, then the PDF etch files etc.

    John

  7. #107

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    RE: CDI gr8flyer55

    This is the ASM file for the 12F683 chip on the timer board.


    Code:
    ;nyemicdi2T  PIC 12F683 4Mhz.
     
                 LIST      P=12F683, F=INHX8M
                 include "P12F683.inc"
                 ORG     0x0000    
                 GOTO    Label_0001
                 ORG     0x0004
                 MOVWF   0x70
                 SWAPF   STATUS    , W
                 CLRF    STATUS
                 MOVWF   0x71
                 INCF    0x27      , F      ;TMR0 interrupt  0x27=TMR0 overflow registers
                 BCF     INTCON    , T0IF    
                 SWAPF   0x71      , W
                 MOVWF   STATUS
                 SWAPF   0x70      , F
                 SWAPF   0x70      , W
                 RETFIE
                 NOP                        ;ignition advance table
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0000
                 RETLW	0001
                 RETLW	0001
                 RETLW	0001
                 RETLW	0001
                 RETLW	0001
                 RETLW	0001
                 RETLW	0002
                 RETLW	0002
                 RETLW	0002
                 RETLW	0002
                 RETLW	0002
                 RETLW	0003
                 RETLW	0003
                 RETLW	0003
                 RETLW	0003
                 RETLW	0003
                 RETLW	0004
                 RETLW	0004
                 RETLW	0004
                 RETLW	0004
                 RETLW	0004
                 RETLW	0004
                 RETLW	0005
                 RETLW	0005
                 RETLW	0005
                 RETLW	0005
                 RETLW	0005
                 RETLW	0006
                 RETLW	0006
                 RETLW	0006
                 RETLW	0006
                 RETLW	0006
                 RETLW	0007
                 RETLW	0007
                 RETLW	0007
                 RETLW	0007
                 RETLW	0007
                 RETLW	0007
                 RETLW	0009
                 RETLW	000A
                 RETLW	000C
                 RETLW	000C
                 RETLW	000F
                 RETLW	0010
                 RETLW	0012
                 RETLW	0013
                 RETLW	0015
                 RETLW	0016
                 RETLW	0018
                 RETLW	0019
                 RETLW	001A
                 RETLW	001B
                 RETLW	001E
                 RETLW	0020
                 RETLW	0021
                 RETLW	0023
                 RETLW	0024
                 RETLW	0025
                 RETLW	0027
                 RETLW	0028
                 RETLW	002A
                 RETLW	002B
                 RETLW	002D
                 RETLW	002F
                 RETLW	0030
                 RETLW	0032
                 RETLW	0032
                 RETLW	0034
                 RETLW	0036
                 RETLW	0037
                 RETLW	0039
                 RETLW	0039
                 RETLW	003C
                 RETLW	003D
                 RETLW	003F
                 RETLW	0040
                 RETLW	0042
                 RETLW	0044
                 RETLW	0045
                 RETLW	0047
                 RETLW	0049
                 RETLW	004A
                 RETLW	004B
                 RETLW	004D
                 RETLW	004E
                 RETLW	004F
                 RETLW	0051
                 RETLW	0052
                 RETLW	0054
                 RETLW	0055
                 RETLW	0057
                 RETLW	0058
                 RETLW	005A
                 RETLW	005B
                 RETLW	005D
                 RETLW	005E
                 RETLW	0060
                 RETLW	0061
                 RETLW	0063
                 RETLW	0064
                 RETLW	0066
                 RETLW	0067
                 RETLW	0069
                 RETLW	006A
                 RETLW	006D
                 RETLW	006E
                 RETLW	006E
                 RETLW	0071
                 RETLW	0071
                 RETLW	0074
                 RETLW	0075
                 RETLW	0077
                 RETLW	0078
                 RETLW	0078
                 RETLW	007A
                 RETLW	007B
                 RETLW	007C
                 RETLW	007D
                 RETLW	007E
                 RETLW	007F
                 RETLW	0080
                 RETLW	0081
                 RETLW	0082
                 RETLW	0083
                 RETLW	0084
                 RETLW	0085
                 RETLW	0086
                 RETLW	0087
                 RETLW	0088
                 RETLW	0089
                 RETLW	008A
                 RETLW	008B
                 RETLW	008C
                 RETLW	008D
                 RETLW	008E
                 RETLW	008F
                 RETLW	008F
                 RETLW	0090
                 RETLW	0091
                 RETLW	0092
                 RETLW	0093
                 RETLW	0094
                 RETLW	0095
                 RETLW	0096
                 RETLW	0097
                 RETLW	0098
                 RETLW	0099
                 RETLW	009A
                 RETLW	009B
                 RETLW	009C
                 RETLW	009D
                 RETLW	009E
                 RETLW	009F
                 RETLW	00A0
                 RETLW	00A1
                 RETLW	00A2
                 RETLW	00A3
                 RETLW	00A4
                 RETLW	00A5
                 RETLW	00A6
                 RETLW	00A7
                 RETLW	00A8
                 RETLW	00A9
                 RETLW	00AA
                 RETLW	00AB
                 RETLW	00AC
                 RETLW	00AD
                 RETLW	00AE
                 RETLW	00AF
                 RETLW	00B0
                 RETLW	00B1
                 RETLW	00B2
                 RETLW	00B3
                 RETLW	00B3
                 RETLW	00B4
                 RETLW	00B5
                 RETLW	00B6
                 RETLW	00B7
                 RETLW	00B8
                 RETLW	00B9
                 RETLW	00BA
                 RETLW	00BB
                 RETLW	00BC
                 RETLW	00BD
                 RETLW	00BE
                 RETLW	00BF
                 RETLW	00C0
                 RETLW	00C1
                 RETLW	00C2
                 RETLW	00C3
                 RETLW	00C4
                 RETLW	00C5
                 RETLW	00C6
                 RETLW	00C7
                 RETLW	00C8
                 RETLW	00C9
                 RETLW	00CA
                 RETLW	00CB
                 RETLW	00CC
                 RETLW	00CD
                 RETLW	00CE
                 RETLW	00CF
                 RETLW	00D0
                 RETLW	00D1
                 RETLW	00D1
                 RETLW	00D3
                 RETLW	00D4
                 RETLW	00D5
                 RETLW	00D6
                 RETLW	00D7
                 RETLW	00D7
                 RETLW	00D7
                 RETLW	00D8
                 RETLW	00DA
                 RETLW	00DB
                 RETLW	00DC
                 RETLW	00DD
                 RETLW	00DE
                 RETLW	00DE
                 RETLW	00DF
                 RETLW	00E1
                 RETLW	00E2
                 RETLW	00E3
                 RETLW	00E4
                 RETLW	00E5
                 RETLW	00E5
                 RETLW	00E6
                 RETLW	00E8
                 RETLW	00E9
                 RETLW	00EA
                 RETLW	00EB
                 RETLW	00EC
                 RETLW	00EC
                 RETLW	00ED
                 RETLW	00EF
                 RETLW	00F0
                 RETLW	00F1
                 RETLW	00F2
                 RETLW	00F3
                 RETLW	00F3
                 RETLW	00F5
                 RETLW	00F6
                 RETLW	00F7
                 RETURN
     Label_0006  BCF     STATUS    , RP1
                 BCF     STATUS    , RP0
                 MOVF    0x22      , W
                 MOVWF   PCLATH
                 MOVF    0x21      , W
                 MOVWF   PCL
                 RETURN
     Label_0001  BCF     STATUS    , RP1
                 BSF     STATUS    , RP0
                 MOVLW   0X61
                 MOVWF   OSCCON
     Label_0013  BTFSS   OSCCON    , HTS
                 GOTO    Label_0013           
                 BCF     STATUS    , RP1
                 BCF     STATUS    , RP0
                 CLRF    GPIO
                 MOVLW   0x07
                 MOVWF   CMCON0               ;comparator module Initialization
                 BCF     STATUS    , RP1
                 BSF     STATUS    , RP0
                 CLRF    ANSEL
                 MOVLW   0x0C
                 MOVWF   TRISIO              ;GP2= HALL sensor input. GP0-GP1, ouput
                 MOVLW   0x07
                 MOVWF   OPTION_REG          ;OPTION_REG 07=256uS prescaler
                 BCF     STATUS    , RP1
                 BCF     STATUS    , RP0
                 MOVLW   0x02
                 MOVWF   GPIO
                 CLRF    0x24
                 CLRF    0x27
                 CLRF    TMR0                ;clear TMR0 
                 MOVLW   0xA0
                 MOVWF   INTCON              ;interrupt Initialization   
     Label_0003  BTFSC   GPIO      ,GP2      ;BTFSC = wait for high pulse on Hall switch (-_+). 
                 GOTO    Label_0002          ;BTFSS = wait for low pulse on Hall switch (+_-)  Alterable!!
                 MOVLW   0x01
                 MOVWF   0x24
                 GOTO    Label_0003 
     Label_0002  MOVF    0x24      , F
                 BTFSC   STATUS    , Z
                 GOTO    Label_0003
                 CLRF    INTCON
                 MOVF    TMR0      , W
                 MOVWF   0x25
                 CLRF    TMR0
                 MOVLW   0x01
                 SUBWF   0x27      , W         
                 BTFSC   STATUS    , Z            
                 GOTO    Label_0011          ;458917 RPM Yes (~-26Β°degree)
                 BTFSS   STATUS    , C 
                 GOTO    Label_0005          ;917RPM< Table values
                 MOVLW   0xFF                ;0-458 RPM Yes
                 MOVWF   0x25         
     Label_0011  NOP                         ;458-917 RPM Yes (~-26Β°degree)
                 NOP                         ;delay time value=458-917RPM~-26Β°degree Initialization 
                 NOP                               
                 NOP                         ;delay time
                 NOP                         ;((12NOP)18uS Γ— TMR0)+RETLW 255 at current value (00F7=-26degree)Alterable!!
                 NOP                         ;EXCEL=I-515, value (blue)
                 NOP                         
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 MOVF    0x25      , F
                 BTFSC   STATUS    , Z
                 GOTO    Label_0010
                 DECF    0x25      , F
                 GOTO    Label_0011
     Label_0010  MOVLW   0xFF
                 MOVWF   0x25
     Label_0005  MOVF    0x25      , W
                 ADDLW   00F4                ;RPM limiter   F4=20380 RPM     Alterable!!
                 BTFSS   STATUS    , C
                 GOTO    Label_0012
                 MOVF    0x25      , W
                 ADDLW   0x10
                 MOVWF   0x21
                 MOVLW   0x00
                 BTFSC   STATUS    , C
                 ADDLW   0x01
                 MOVWF   0x22
                 MOVF    PCLATH    , W 
                 MOVWF   0x20
                 CALL    Label_0006
                 MOVWF   0x23
                 MOVF    0x20      , W
                 MOVWF   PCLATH
                 MOVF    0x23      , F
                 BTFSC   STATUS    , Z
                 GOTO    Label_0007
     Label_0008  NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP                        ;RETLW value(0x23 registers) x 19uS=16 NOP    Alterable!! 
                 NOP                        ;EXCEL=K-1, value (orange).
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 NOP
                 DECFSZ  0x23      , F
                 GOTO    Label_0008
     Label_0007  MOVLW   0x03
                 XORWF   GPIO      , F      ;Output OFF: GP1, 
                 MOVLW   0xD8               ;Output ON: GP0,
                 MOVWF   0x26                   
     Label_0009  NOP                        ;Output time(dwell):(3NOP)6uS x 0x26 registers ((D8=216)x6=1296uS)
                 NOP
                 NOP
                 DECFSZ  0x26      , F 
                 GOTO    Label_0009
                 MOVLW   0x03               ;Output ON: GP1, 
                 XORWF   GPIO      , F      ;Output OFF: GP0,
     Label_0012  CLRF    0x24
                 CLRF    0x27               ; TMR0 overflow registers(0x27) clear
                 MOVLW   0xA0
                 MOVWF   INTCON             ;interrupt Initialization 
                 GOTO    Label_0003
                 GOTO    Label_0001
     
                 ORG     0x2007
                 DATA    33C4               ;Config Bytes
     
                 END

  8. #108

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    RE: CDI gr8flyer55

    Here's the HEX file for the 12F683 chip on the timer board.

    John

    Code:
    :020000001829BD
     :08000800F000030E8301F1007A
     :10001000A70A0B11710E8300F00E700E090000008C
     :100020000034003400340034003400340034003430
     :10003000003400340034003400340134013401341D
     :100040000134013401340234023402340234023403
     :1000500003340334033403340334043404340434E5
     :1000600004340434043405340534053405340534CB
     :1000700006340634063406340634073407340734AD
     :1000800007340734073409340A340C340C340F3481
     :1000900010341234133415341634183419341A3415
     :1000A0001B341E34203421342334243425342734A3
     :1000B00028342A342B342D342F3430343234323433
     :1000C000343436343734393439343C343D343F34C5
     :1000D0004034423444344534473449344A344B3450
     :1000E0004D344E344F3451345234543455345734E3
     :1000F00058345A345B345D345E3460346134633474
     :1001000064346634673469346A346D346E346E3402
     :1001100071347134743475347734783478347A3493
     :100120007B347C347D347E347F348034813482343B
     :1001300083348434853486348734883489348A34EB
     :100140008B348C348D348E348F348F34903491349E
     :100150009234933494349534963497349834993453
     :100160009A349B349C349D349E349F34A034A13403
     :10017000A234A334A434A534A634A734A834A934B3
     :10018000AA34AB34AC34AD34AE34AF34B034B13463
     :10019000B234B334B334B434B534B634B734B83419
     :1001A000B934BA34BB34BC34BD34BE34BF34C034CB
     :1001B000C134C234C334C434C534C634C734C8347B
     :1001C000C934CA34CB34CC34CD34CE34CF34D0342B
     :1001D000D134D134D334D434D534D634D734D734DD
     :1001E000D734D834DA34DB34DC34DD34DE34DE3496
     :1001F000DF34E134E234E334E434E534E534E63446
     :10020000E834E934EA34EB34EC34EC34ED34EF34F4
     :10021000F034F134F234F334F334F534F634F734A3
     :1002200008000313831222088A00210882000800B4
     :100230000313831661308F000F1D1C2903138312D3
     :10024000850107309900031383169F010C30850048
     :10025000073081000313831202308500A401A70137
     :100260008101A0308B00051938290130A400332901
     :10027000A408031933298B010108A500810101306D
     :10028000270203194729031C5A29FF30A500000043
     :10029000000000000000000000000000000000005E
     :1002A000000000000000A50803195829A5034729EC
     :1002B000FF30A5002508F43E031C8B292508103EBD
     :1002C000A10000300318013EA2000A08A00011217D
     :1002D000A30020088A00A308031980290000000059
     :1002E000000000000000000000000000000000000E
     :1002F000000000000000000000000000A30B6E29B9
     :1003000003308506D830A600000000000000A60BD0
     :10031000842903308506A401A701A0308B0033296E
     :0203200018299A
     :02400E00C433B9
     :00000001FF

  9. #109

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    RE: CDI gr8flyer55

    Hi ustura_kemal
    I give the full file. link:http://www.moto.com.ua/postphoto/archive/1090217_1.zip

    End of project.

    Regards nyemi.

  10. #110

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    RE: CDI gr8flyer55

    thank you for helping john and nyemi.John do you have combo board pcb and schematics?

  11. #111

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    RE: CDI gr8flyer55

    Hello Ustura...
    I do have the schematics for the boards, and I will post today if RCU doesn't give me any more trouble uploading files. I just have to convert them to a format it will accept here. I have a parts overlay picture that I will try uploading first, then the etch file for the combo board, and a parts list. Nyemi has made available the software files for the ignition. Thankyou Nyemi !!!
    Without his help, this project would have not been possible. He has done an amazing job over the last 2 years with the software design and constant updates. If there are any questions on the software, direct them to Nyemi. He has been very helpful to everyone needing help with the advance curves.

    John


  12. #112

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    RE: CDI gr8flyer55

    Here's the final combo board schematic from Bluejets.. I think he did a great job in this arrangement.


    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Pn37524.gif 
Views:	133 
Size:	10.4 KB 
ID:	1725909  

  13. #113

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    RE: CDI gr8flyer55

    Here are the last 2 PDF files of the parts overlay and the board etch pattern.

    Enjoy!

    John

    Attached Files Attached Files

  14. #114

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    RE: CDI gr8flyer55

    Ustura,
    The coil for the hv was described somewhere before but hard to find I think so I will re-post details.
    The ferrite toroid John used was ... Ferroxcube 768T188/3E2A
    The size is .................................. 12.7mm(0.5”OD) x 7.2mm(0.285”ID) x 4.8mm(0.19”H)

    I used one from Farnell here in Aus. and the part number is TN13/7.5/5-3C90
    Web site here......... http://au.element14.com/ferroxcube/t...N13/7.5/5-3c90

    Windings are of course enamelled copper wire.
    L1 = 15 turns 26 gauge (#26)
    L2 = 6 turns 36 gauge (#36)
    L3 = 400 turns 36 gauge (#36)
    Keep the start of windings L1 and L2 marked because the orientation of these two windings are important to the operation of the oscillator.
    John used a "stick" with the wire wrapped to do his winding of the toroid and although a bit painful at times, it does work well.
    If I remember, the "stick" was fairly narrow with a notch cut each end to hold the wire, and it was about 150mm long. You will have to work out how much wire for the 400 turns as it depends on your toroid core dimensions.
    Jeff

  15. #115

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    RE: CDI gr8flyer55

    thank you jeff. this board does not work.very warm mje 3055 why?

    kemal

  16. #116

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    RE: CDI gr8flyer55

    Keep the start of windings L1 and L2 marked because the orientation of these two windings are important to the operation of the oscillator.
    If you swap one of the primary windings end for end, should work ok. (i.e. swap start and finish of winding L1)

    This is assuming you have no shorts or damage to windings. If you look closely at the layout diagram that John supplied and you have wound the coils all in the same direction, you will see the start and finish of each of the primary winding positions are marked.

  17. #117

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    RE: CDI gr8flyer55

    This may show the layout a bit clearer.
    If you click on the pic and download it, then open with windows picture and fax viewer, you can magnify the drawing.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Mj24351.gif 
Views:	65 
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ID:	1726579  

  18. #118

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    RE: CDI gr8flyer55

    A bit clearer again.........
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  19. #119

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    RE: CDI gr8flyer55

    thank you for reply jeff.c4,c6,c7 ceramic?

  20. #120

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    RE: CDI gr8flyer55

    C4 can be ceramic, c6 and c7 are polarized electrolytic.

    John

  21. #121

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    RE: CDI gr8flyer55

    ı use bd911 instead mje3055 this right?

  22. #122

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    RE: CDI gr8flyer55

    BD911 has slightly higher ratings so should be fine.

  23. #123

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    RE: CDI gr8flyer55

    thank you for reply.hv board now working but timer board not working.i 'm using pic12f675 and bipolar hall sensor .it is for work need to make changes to program?

  24. #124

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    RE: CDI gr8flyer55

    The system works with the parts listed.
    The program was written for 12F683 chip.
    If you want to experiment with other types, then you will have to work it out for yourself.
    The hall sensor I used was Allegro uA3240 .....unipolar.... not made anymore but I think A1120 is a replacement.
    The last thing you want is a hall effect that "latches". The program looks for (I believe) the trailing edge pulse as the magnet passes.

    http://www.allegromicro.com/Products...120-1-2-5.aspx

  25. #125

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    RE: CDI gr8flyer55

    I just did a quick search and found this......

    http://www.rcgroups.com/forums/showthread.php?t=288678

    I would say by the look of this the 12F675 is nowhere near compatible.


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