[GPS_Standard] GPS_Standard Digest, Vol 54, Issue 3

[Jim D]

Glenn,
Thanks that is what I thought but just wanted to make sure.

73,
Jim
JG1KGS

On 3/16/13, gps_standard-request at mailman.qth.net
<gps_standard-request at mailman.qth.net> wrote:
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>    1. Other frequencies (Jim D)
>    2. Re: Other frequencies (Glenn Elmore)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Fri, 15 Mar 2013 09:07:47 +0900
> From: Jim D <jg1kgs at gmail.com>
> To: gps_standard at mailman.qth.net
> Subject: [GPS_Standard] Other frequencies
> Message-ID:
> 	<CAER3-QF_Zqz6ADCQCEskWn=mgXvDDbfGKa_LVYoJMoc8D+i3rA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I am very impressed with the design and function of Bertrand's design.
>  It is working superbly even with my shaky hands doing the
> construction.
>
> I would like to train an OCXO of a different frequency but have a
> question.  I have read through the .asm file and am trying to figure
> out where in the code the frequency readout values are stored.  Can
> someone help me with changing this value.  I understand how the value
> is computed and what the new "count" should be just can't seem to find
> where the 0x6800 value is stored.
>
> Thanks and 73,
> Jim
> JG1KGS
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 14 Mar 2013 17:21:12 -0700
> From: Glenn Elmore <n6gn at sonic.net>
> To: gps_standard at mailman.qth.net
> Subject: Re: [GPS_Standard] Other frequencies
> Message-ID: <51426978.9060603 at sonic.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Jim,
> Have a look at the equates:
> ccp_160mhz_h                EQU 0x68                ;when frequency
> counted is exactly 160MHz, OLD_CCPR1 reads 26624, or 0x6800
> ccp_160mhz_l                EQU 0x00                ; "
> ccp_80mhz_h                 EQU 0xB4                ;when frequency
> counted is exactly 80MHz, OLD_CCPR1 reads 46080, or 0xB400
> ccp_80mhz_l                 EQU 0x00                ; "
>
> The first is for 10 MHz OCXO, the second for 5 MHz. each is counting for
> 16 seconds.
>
> Glenn n6gn
>
>
> On 03/14/2013 05:07 PM, Jim D wrote:
>> I am very impressed with the design and function of Bertrand's design.
>>   It is working superbly even with my shaky hands doing the
>> construction.
>>
>> I would like to train an OCXO of a different frequency but have a
>> question.  I have read through the .asm file and am trying to figure
>> out where in the code the frequency readout values are stored.  Can
>> someone help me with changing this value.  I understand how the value
>> is computed and what the new "count" should be just can't seem to find
>> where the 0x6800 value is stored.
>>
>> Thanks and 73,
>> Jim
>> JG1KGS
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> End of GPS_Standard Digest, Vol 54, Issue 3
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