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Old 01-11-2012 | 01:43 AM
  #101  
bluejets
 
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Default 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
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Old 01-11-2012 | 02:22 AM
  #102  
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Default 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.

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Old 01-11-2012 | 07:29 AM
  #103  
gr8flyer55
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Default 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

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Old 01-11-2012 | 12:50 PM
  #104  
bluejets
 
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Default 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
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Old 02-10-2012 | 06:46 AM
  #105  
ustura_kemal
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Default 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.</p>

</p>

best regards...</p>

</p>

kemal</p>
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Old 02-10-2012 | 03:03 PM
  #106  
gr8flyer55
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Default 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
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Old 02-10-2012 | 07:39 PM
  #107  
gr8flyer55
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Default 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 (~-26°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 (~-26°degree)
             NOP                         ;delay time value=458-917RPM~-26°degree Initialization 
             NOP                               
             NOP                         ;delay time
             NOP                         ;((12NOP)18uS × 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
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Old 02-10-2012 | 07:52 PM
  #108  
gr8flyer55
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Default 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
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Old 02-10-2012 | 10:25 PM
  #109  
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Default RE: CDI gr8flyer55
<span lang="en" class="short_text" id="result_box"><span class="hps">Hi</span> </span>ustura_kemal <span lang="en" class="short_text" id="result_box">
<span class="hps">I give</span> <span class="hps">the full</span> <span class="hps">file</span><span>.</span> <span class="hps">link:<a href="http://www.moto.com.ua/postphoto/archive/1090217_1.zip" target="_blank">http://www.moto.com.ua/postphoto/archive/1090217_1.zip
</a>
</span></span><span lang="en" class="short_text" id="result_box"><span class="hps">End of project</span><span>.

</span></span><div id="clear" style="-moz-user-select: none; right: 0pt;" class="clear-button goog-toolbar-button" data-tooltip="Sz&ouml;veg t&ouml;rl&eacute;se" data-tooltip-align="t,c" role="button" tabindex="0"></div><div style="display: none;" class="gt-spell-correct-message gt-spell-vkeyboard-on" id="spelling-correction">Forr&aacute;snyelv: <a>cseh</a></div><div id="gt-src-tools"><div id="gt-src-tools-l"><div id="gt-src-keyboard" style="-moz-user-select: none;" class="trans-keyboard-button goog-toolbar-button" data-tooltip="Virtu&aacute;lis billentyűzet" data-tooltip-align="t,c" role="button" tabindex="0"></div><div style="display: none;" id="inputt13n"><span dir="ltr" id="t13ntext" data-tooltip="P&eacute;lda: G&eacute;pelje be, hogy &amp;quot;privet&amp;quot;, majd &uuml;sse le a sz&oacute;k&ouml;zt, &eacute;s a k&ouml;vetkezőt kapja: &amp;quot;привет&amp;quot;." data-tooltip-align="t,c"><label id="t13nimg.lbl">Fonetikus &iacute;r&aacute;s enged&eacute;lyez&eacute;se</label></span></div></div><div id="gt-src-tools-r"><div id="gt-src-listen" style="-moz-user-select: none;" class="trans-listen-button goog-toolbar-button" data-tooltip="Meghallgat&aacute;s" data-tooltip-align="t,c" role="button" tabindex="0"></div><div id="gt-src-roman" style="-moz-user-select: none; display: none;" class="trans-roman-button goog-toolbar-button" data-tooltip="Olvas&aacute;s fonetikusan" data-tooltip-align="t,c" role="button"></div></div></div><div id="select_document" style="display: none;">&Iacute;rjon be sz&ouml;veget, adjon meg webhelyc&iacute;met vagy ford&iacute;tson le egy dokumentumot.</div><div style="display: none;" class="file" id="file_div"><div id="select_text" style="display: none;">M&eacute;gse</div><input type="file" size="40" id="file" name="file" style="display: none;" /></div>
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Old 02-11-2012 | 12:52 AM
  #110  
ustura_kemal
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Default RE: CDI gr8flyer55
thank you for helping john and nyemi.John do you have combo board pcb and schematics?
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Old 02-11-2012 | 05:14 AM
  #111  
gr8flyer55
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Default 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

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Old 02-11-2012 | 09:22 PM
  #112  
gr8flyer55
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Default RE: CDI gr8flyer55
Here's the final combo board schematic from Bluejets.. I think he did a great job in this arrangement.


Attached Thumbnails Click image for larger version Name: Pn37524.gif Views: 516 Size: 10.4 KB ID: 1725909  
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Old 02-11-2012 | 09:26 PM
  #113  
gr8flyer55
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Default RE: CDI gr8flyer55
Here are the last 2 PDF files of the parts overlay and the board etch pattern.

Enjoy!

John

Attached Files
File Type: pdf
Bz79360.pdf (216.6 KB, 316 views)
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Id97188.pdf (211.7 KB, 274 views)
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Old 02-13-2012 | 02:19 AM
  #114  
bluejets
 
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Default 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(0.5â€OD) x 7.2mm(0.285â€ID) x 4.8mm(0.19â€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
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Old 02-13-2012 | 06:22 AM
  #115  
ustura_kemal
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Default RE: CDI gr8flyer55
thank you jeff. this board does not work.very warm mje 3055 why?<span lang="en" class="short_text" id="result_box"><span class="hps">

kemal
</span></span>
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Old 02-13-2012 | 03:09 PM
  #116  
bluejets
 
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Default 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.
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Old 02-13-2012 | 03:25 PM
  #117  
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Default 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 Click image for larger version Name: Mj24351.gif Views: 375 Size: 60.3 KB ID: 1726579  
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Old 02-13-2012 | 04:13 PM
  #118  
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Default RE: CDI gr8flyer55
A bit clearer again.........
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Old 02-14-2012 | 02:48 AM
  #119  
ustura_kemal
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Default RE: CDI gr8flyer55
thank you for reply jeff.c4,c6,c7 ceramic?
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Old 02-14-2012 | 04:12 AM
  #120  
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Default RE: CDI gr8flyer55
C4 can be ceramic, c6 and c7 are polarized electrolytic.

John
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Old 02-14-2012 | 05:06 AM
  #121  
ustura_kemal
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Default RE: CDI gr8flyer55
ı use bd911 instead mje3055 this right?
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Old 02-14-2012 | 05:36 AM
  #122  
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Default RE: CDI gr8flyer55
BD911 has slightly higher ratings so should be fine.
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Old 02-14-2012 | 01:19 PM
  #123  
ustura_kemal
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Default 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?<div><div></div></div>
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Old 02-14-2012 | 03:49 PM
  #124  
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Default 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
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Old 02-14-2012 | 04:00 PM
  #125  
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Default 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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