Jan-Erik,
     The numbers I came up with are: TMR1H =3D 0xCF; TMR1L =3D 0x48; I don'=
t=20
understand why they are so far off. If it was 10 or 20% that would be=20
expected but these were off by a factor of over 4. Now all the way in to=20
the 10s of KHz the numbers are right on. At 100s of KHz the error is=20
only 0.002%. I have my counter turned down to 22Hz and the HP is reading=20
the same as my home made counter.
Thanks,
rich!

On 7/23/2014 2:34 PM, Jan-Erik Soderholm wrote:
>
> Richard R. Pope wrote 2014-07-23 20:48:
>> Allen,
>>        I don't have a 20MHz chip so I dropped back to 4 MHz. The
>> calculator has a choice for a 4MHz frequency and I choose that but the
>> numbers are off by almost 4.5 times.
> The values you presented in your code here does give the right
> timing. Only some small adjustments was possible. See my
> earlier post.
>
> Jan-Erik.
>
>
>
>

--=20
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