Hi David,
                 Before using 39pF, I=B4ve tried with 22pF. At that time,=20
I noticed the oscillator starts running when I touched the xtals pins=20
with the osciloscope probe, so I thought the added probe capacitance=20
could be doing the job, thats why I increased the value.
                 The xtal is the EPSON C001R32.76K with 12.5pF. After=20
your replay, I tried again the 22pF and even 11pF ( 2 x 22pF in series),=20
always with the same behavior - only runs when I touch the terminals.



On 11/02/2014 10:59, David VanHorn wrote:
> What does the crystal spec say about loading capacitance?
> As was discussed in your other thread, 39pF caps seems way too much loadi=
ng
> for those crystals.
> Take the value from the spec sheet, double that, and subtract 5 or 6 pF a=
s
> a good starting point.
>
>
>
>
> On Tue, Feb 11, 2014 at 5:42 AM, Dagmar Carnier Neto
> <dagmarcn@rc.unesp.br>wrote:
>
>>                   Hello guys,
>>                   Im having a weird problem making the Timer1 oscillator
>> work in the PIC18F14K50. Im using a 32.768Khz xtal, with 39pF capacitors
>> to ground. It only works when I touch one of the xtal terminals (but not
>> both) with my finger! Checked everything, seems all registers are
>> correctly configured. Already checked the solder points and even
>> replaced the xtal, but the still working same way. Any suggestion?
>>
>>                       Thanks in advance, best regards,
>>
>>                                   Dagmar
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