pic programming failed

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Re: pic programming failed

Postby dmitri » Tue Oct 27, 2009 10:13 am

No, I cannot spot it from pictures.
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Re: pic programming failed

Postby oliboy » Thu Feb 04, 2010 4:14 pm

if you are trying to program the PIC via a USB-COM or cheap PCMCIA-COM -- it will not work;


what do you mean when you say cheap PCMCIA-COM?...because i'm using the com port on my motherboard...would that work?..
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Re: pic programming failed

Postby dmitri » Thu Feb 04, 2010 4:38 pm

If the COM port on the motherboard is in working order, then it should work.
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Re: pic programming failed

Postby Firelord » Thu Feb 04, 2010 4:42 pm

oliboy wrote:if you are trying to program the PIC via a USB-COM or cheap PCMCIA-COM -- it will not work;


what do you mean when you say cheap PCMCIA-COM?...because i'm using the com port on my motherboard...would that work?..

I needed a way to program a PIC from my laptop which does not have COM/LPT ports, so I checked out USB-COM/PCMCIA-COM converters, and it turned out that they would not be good for the task. There were expensive PCMCIA-COM converters, but obviously I did not want them.

If you are using a generic COM port (i.e. it is a motherboard integrated feature), all should be fine.
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Re: pic programming failed

Postby oliboy » Fri Feb 05, 2010 2:19 am

i just bought a new pic and assembled a new board...i still can't program my pic...i'll try to post the voltage readings when i get a multitester...what could be the problem?..could the crystal be a problem?..i still get a could not initialize programmer error...i'll also put pics of the programming cable and winpic settings...please help me!!!i wanna finish this project...thanks!!
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Re: pic programming failed

Postby dmitri » Fri Feb 05, 2010 11:19 am

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Re: pic programming failed

Postby oliboy » Sat Feb 06, 2010 11:24 am

this is my readings...


1: 5V
8: 0V
14: 0V
19: 0V
20: 5V
26: 0V

its still the same could the crystal cause this problem or a capacitor...
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Re: pic programming failed

Postby dmitri » Sat Feb 06, 2010 12:45 pm

Crystal has nothing to do with the voltage on the pin 14.
The pin 14 either has a short to the ground or to other pin(s) or your PIC is faulty.
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Re: pic programming failed

Postby Firelord » Sat Feb 06, 2010 4:16 pm

oliboy wrote:this is my readings...


1: 5V
8: 0V
14: 0V
19: 0V
20: 5V
26: 0V

its still the same could the crystal cause this problem or a capacitor...

Measure voltage levels between pins 1, 14, 15 and 28 and ground.

P.S. It's weird, but nobody noticed a strange mistake I made here, where I'd written 16 instead of 28. Here's the corrected picture:

digital-board-brd_probing.png
You do not have the required permissions to view the files attached to this post.
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Re: pic programming failed

Postby oliboy » Sat Feb 06, 2010 5:17 pm

i'll try to check for shorts...if it's faulty...how unlucky am i to get two faulty pics...huhu!!
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