Jean-Paul,
     Sorry about that. No the one second gating pulse is on one pin and=20
the 20+ns reset pulse is on a second pin. There doesn't need to be any=20
delay between the reset pulse and the gating pulse. Then after the=20
gating pulse we wait for 15 seconds or so before sending the next reset=20
pulse and doing the whole thing all over again.
Thanks,
rich!

On 7/18/2014 11:16 AM, Jean-Paul Louis wrote:
> Richard,
> Your description is a bit confusing.
> 1 - Are the one second pulse and the second short pulse on the same wire?
> 2 - what is the delay between the short pulse and the next one second pul=
se?
>
> 1 sec =97 15 sec =97 short pulse =97 ??? =97 1 sec =97 15 sec =97 short p=
ulse =97 ??? =85.
>
> Please advise,
>
> Jean-Paul
> AC9GH
>
>
>
> On Jul 18, 2014, at 11:39 AM, Richard R. Pope <mechanic_2@charter.net> wr=
ote:
>
>> Bob,
>>      OK. But how do I do this? I want to put out a one second high pulse
>> and then pull it low. Then I want to wait for 15 seconds. Next I want to
>> output a high for at least 20ns. Output the one second pulse, wait for
>> 15 seconds, output the 20+ns pulse, output the one second pulse, and
>> continue doing this forever.
>> Thanks,
>> rich!
>> P.S. I will eventually add an ADC to control how long we wait before we
>> output the 20+ns reset pulse and then the one second gating pulse.
>> rich!
>>
>> On 7/18/2014 10:09 AM, Bob Ammerman wrote:
>>> Why are we talking about timers at all? It is a pain in the next to get=
 an
>>> instruction cycle accurate pulse when using a timer. It is much easier =
to
>>> generate a pulse of an exact number of instruction cycles using a delay
>>> loop.
>>>
>>> ~ Bob Ammerman
>>> RAm Systems
>>>
>>> -----Original Message-----
>>> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behal=
f Of
>>> Allen Mulvey
>>> Sent: Friday, July 18, 2014 10:40 AM
>>> To: 'Microcontroller discussion list - Public.'
>>> Subject: RE: [Pic] Making a special timer!
>>>
>>> MikroElektronika has a free Timer Calculator that you can use to get th=
e
>>> code to set up your timer. I don't understand why anyone would want to =
use a
>>> PWM when the timer is so easy and quite accurate. Check this out:
>>> http://www.libstock.com/projects/view/398/timer-calculator
>>>
>>>
>> --=20
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>> http://mailman.mit.edu/mailman/listinfo/piclist
>

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