Problem Keeping PORTD.1 LOW

[Darrel Taylor]

OK, now this is just getting cRaZy. I can't stand it anymore!!!

Do you have a schematic of the way you have the MAX1672 set up?

I'm going to duplicate your circuit and see if I can make it do the same thing. This is just too weird.
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[koossa]

I will qiuckly draw one, thanks!!

[koossa]

Hi Darrel

Attached is my complete circuit as put out on my breadboard.

[koossa]

I have put a LED connected to PortC.3 whith the athached code and my pic do start up, becuase the LED is flickering, but when I release the ON button it stops.

<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=476&stc=1" border="1">

[koossa]

I think I'm starting to get some progress.
If I write the code, as below, my ONA does not turn on when measured with a multi-meter.
But if I put a LED over PORTD.0 (ONA) AND GND and I press the on button, it flickers.
So with the loop ONA does not stay high, but flickers
Without the loop ONA does stay high?

<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=477&stc=1" border=1">

[koossa]

I Think I have found my problem.
The plates in the breadboard creates a capacitance on my circuit, that is why the led was flickering.
I have build a pcb and now it looks like it is working.

[mister_e]

That happen often even if you have a brand new or older breadboard.

Out of curiosity, what about if you remove those capacitor around your crystal on your BreadBoard???

[Darrel Taylor]

Great! Thanks for the schematic. Looks like that took awhile to draw.

I should have the circuit built up later today. Just crawled out of bed. Need Coffee...

I'll get back to you later.
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[Darrel Taylor]

After posting that last one. I saw that you have it working.

Not what I wanted to see.
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[koossa]

Hi Darrel

Thank you very much for your help.

You said that it's not the right way to connect the one pin of the pic directly to ground, what is the correct way of doing this.