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Author Topic: Question - Building DIY Programmer  (Read 4139 times)

Offline MadMan666

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Question - Building DIY Programmer
« on: August 24, 2008, 01:21:03 PM »
I ordered a few 12F683 chips today and Im going to have a go at programming them.

I have a local electronics shop by my house that has all the parts needed to build my own programmer.

I found this link in another section of the site but had a question about the diagram.



am I reading it correctly that the Serial Plug 8pin connects to the 4pin after the 2.2k Resistor?
now im still a little of a newb when it comes to circuit board making but that just seems odd for some reason.
« Last Edit: August 24, 2008, 03:32:11 PM by MadMan666 »
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Offline ryan0

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Re: Question - Building DIY Programmer
« Reply #1 on: August 26, 2008, 06:33:24 AM »
yes thats how it is,it looked odd to me at 1st too but that diagram is right
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Derp.

Offline MadMan666

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Re: Question - Building DIY Programmer
« Reply #2 on: August 26, 2008, 10:47:58 AM »
cool I just wanted to make sure.

didnt want the wrong signal being sent into my serial port and frying something.
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Offline ryan0

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Re: Question - Building DIY Programmer
« Reply #3 on: August 27, 2008, 06:19:44 PM »
are you using a 2n7000 MOSFET transistor or are you using a similar one?because I doubt you could buy a 2n7000 in any old local electronics shop.
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Offline MadMan666

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Re: Question - Building DIY Programmer
« Reply #4 on: August 27, 2008, 06:52:17 PM »
I ended up getting it from Digi-key. it was the only thing I could not get locally.

I would have ordered it from Mouser as they have a location here in cincy (no shipping) but I was unable to find it in their new catalog. :sadno:
« Last Edit: August 27, 2008, 06:54:12 PM by MadMan666 »
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Offline ryan0

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Re: Question - Building DIY Programmer
« Reply #5 on: August 28, 2008, 02:32:17 AM »
May I ask you for a link to the mosfet transistor that you bought from digikey?
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Offline MadMan666

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Re: Question - Building DIY Programmer
« Reply #6 on: August 28, 2008, 04:58:15 AM »
HERE

it sux the damn things not even $1 
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Offline Red_Stafford

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Re: Question - Building DIY Programmer
« Reply #7 on: September 25, 2008, 08:08:40 AM »
How did this programmer work, I have some 12F683 chips that I need to program but I dont have a programmer so I was thinking of making something like this do you have pics of how to make this up I dont really undertand drawings like the one you posted.
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Offline XsavioR

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Re: Question - Building DIY Programmer
« Reply #8 on: October 02, 2008, 03:18:54 PM »
These style programmers will most likely give you an error at 0x00 on write. The reason for this is XP locks down I/O on the serial port.  To get them to work you need to hack your windows to allow you direct  control over the serial port, other wise the lag XP creates while deciding to give you access or not.... will cause errors.

You really are better off getting a good programmer. It does more then program and its only moderately more expensive (34$)then making your own especially when you figure in the time and effort.

You will have no problems if you install win98 on an old pc for programming. As it doesnt mediate I/O control.
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Offline Hazer

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Re: Question - Building DIY Programmer
« Reply #9 on: October 03, 2008, 06:52:10 PM »
Just to clarify:

You do not need to hack your windows to get WinPIC800 to work on Windows XP.
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Offline XsavioR

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Re: Question - Building DIY Programmer
« Reply #10 on: October 03, 2008, 07:55:05 PM »
Like i said ICPROG also has a dll to load to enable direct i/o control. But indeed you might see some glitches with this dll loaded.
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Offline xbox modz

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Re: Question - Building DIY Programmer
« Reply #11 on: January 28, 2009, 12:47:58 PM »
wheres the site for the dll so i can put it on ic prog and do you add it.
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