On 06/20/2013 06:49 AM, Don Latham wrote:
If you aren't sure a number is needed, put<number> <word> <.> If a
number is needed, one will be on the stack, and the . will just pop
nothing. If the number is not needed, . will simply pop the unused
number. The stack will be left clean in either case. If I remember
right, that is . . .
For the cal command, I already know it needs a word.
Cheers,
Magnus
Don
Mark C. Stephens
Also Murray,
Warning! don't attempt to run cal with an empty stack, it will go into a
negative loop forever and you will have to reboot the clock to get
control again.
I haven't found cal in the words on a Z3815A but is present on the Z380x
series.
-marki
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Magnus Danielson
Sent: Thursday, 20 June 2013 6:45 AM
To: [email protected]
Subject: Re: [time-nuts] Z38XX PFORTH interpreter question
Hi Murray,
On 06/18/2013 04:10 AM, Murray Greenman wrote:
Hi,
Has anyone made further progress in understanding the PFORTH commands?
I have figured out roughly what most of them do, but then again it is
fairly obvious from their name.
cal performs tempco calibration and you should put the length of your
calibration time on the stack to let it know how many seconds you want
to run.
100 cal
will run calibration for 100 seconds (far to short).
I find with my Z3815A (with an E1938A hockey puck oscillator
installed) that the command 'puck' returns:
a= -6.305066e-13 b= 0.000000e00 a/d = 1.600000e+01 puck communication
is alive puck warm= 1 puck EFC ADC err= 0
status1 byte= 1
status2 byte= 0
What fun! I wonder what the three variables are and can one change
them?
Cool!
Will look at that command then.
As a separate but related question, I've just swapped out a failed MTI
260 OCXO from this Z3815A and fitted in its place the older E1938A
hockey puck. The problem I have is that the EFC sense seems to be
reversed. Does anyone know how to change this, either by sending a
PFORTH command or otherwise? It would be great to get the Z3815A going
again.
I will have to look at that. So many things is tuneable under the hood
that it should be possible to fix.
Will have to wire up my Z3815A and fire it up.
Cheers,
Magnus
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