[time-nuts] 5 MHZ PIC PPS Divider?
David Forbes
dforbes at dakotacom.net
Fri Apr 11 16:12:20 EDT 2008
At 3:23 PM -0400 4/11/08, John Ackermann N8UR wrote:
>Has anyone come up with a 5 MHz input version of TVB's PIC divider? I
>could use one...
>
>Thanks,
>
>John
>
John,
I haven't done that, but it looks easy to do. Change the second stage
to divide by 5 instead of 10. You will get 50 KHz instead of 100 KHz,
but so what.
This takes two changes in the constants for Digit1's tests:
first...
Loop1 BTFSC STATUS, Zero
INCF Digit1
MOVLW BASE10 <-- change BASE10 to 0x5
SUBWF Digit1, W
BTFSC STATUS, Zero
CLRF Digit1
later...
MOVLW HALF10 <-- change HALF10 to 0x2
SUBWF Digit1, W
RRF OutByte, 1
--
--David Forbes, Tucson, AZ
http://www.cathodecorner.com/
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