It is close to 18 month now that I first proposed a D/M for $200. Thanks to
the help of Corby, Richard, Brian, Bob and Hubert I think it is very close
to final release. The delay is mainly due to testing, not by the five
mentioned above but by others, that did get kits under the condition
At 08:50 AM 2/19/2011, Poul-Henning Kamp wrote:
Imagine a board with EPROM + ARM chip w/USB interface...
HP5370B with built in allan-variance calculation, anyone ?
No, I don't have the time, but if I had...
I've had similar (like maybe a Luminary ARM + ethernet) thoughts. I
wasn't sure if
In message 920772.7182...@smtp103.prem.mail.sp1.yahoo.com, Scott Newell
writes:
At 08:50 AM 2/19/2011, Poul-Henning Kamp wrote:
I've had similar (like maybe a Luminary ARM + ethernet) thoughts. I
wasn't sure if the firmware was simple enough to be re-written so
that the entire CPU section
I've had similar (like maybe a Luminary ARM + ethernet) thoughts. I
wasn't sure if the firmware was simple enough to be re-written so
that the entire CPU section could be replaced.
From reasonable ignorance, would a device like the Parallax propeller do
the job? I have a couple of 5370 A models
In message 11df8bbd5d5941b0d47d4afe0321a8a8.squir...@webmail.montana.com, Do
n Latham writes:
From reasonable ignorance, would a device like the Parallax propeller do
From reasonable ignorance, would a device like the Parallax propeller do
the job? I have a couple of 5370 A models here...
I
My this would be quite a task to reverse engineer.
Though only 8K of eprom I suspect its cleverly coded. But since this is a
desert island kind of discussion here are my 2 cents. (Truly the value)
The propellers are parallel processors. Sort of the Basic stamp2 for
parallel processing. They are
Is the CPU strictly an I/O machine or does it do any of the timing for the
counter?
If it's just I/O then indeed, replacing it would be a reasonable task.
-Original Message-
From: Poul-Henning Kamp
Sent: Sunday, February 20, 2011 3:21 PM
To: Discussion of precise time and frequency
Poul-Henning Kamp wrote:
In message466fdfc184a3469eac08eee5ee36c...@hm.clpa.com, Bob Camp writes:
Is the CPU strictly an I/O machine or does it do any of the timing for the
counter?
All the counting is hardware.
Not so for the 5370A (was this changed for the 5370B?), the 16 bit
I've been looking at this a bit recently.
Pictures here: http://jks.com
I run the 5370 firmware on an m6800 emulator written in C running on a Linux
box.
Reads and writes to I/O space are caught and executed on the 5370 hardware via
an interface board hooked up to the m6800 processor bus.
This
John Seamons wrote:
I've been looking at this a bit recently.
Pictures here: http://jks.com
I run the 5370 firmware on an m6800 emulator written in C running on a Linux
box.
Reads and writes to I/O space are caught and executed on the 5370 hardware via
an interface board hooked up to the
I've been looking at this a bit recently.
Pictures here: http://jks.com
Cool as heck!
The next step is to move everything to a microcontroller (e.g.
SAM7X) on a card that replaces the processor board completely.
As has been mentioned you can do all sorts of crazy, and perhaps
useful,
List,
It was a bucolic spring day and a lawyer was riding down the road in his red
Ferrari and his arm resting out on the open window ledge.
Suddenly a truck goes by and sideswipes the driver’s side and doesn’t stop.
The lawyer crawls out of his car stands on the drivers side and says “My
In message 5eed908f-6a51-4447-b433-84b0e0fdd...@jks.com, John Seamons writes:
I've been looking at this a bit recently.
Pictures here: http://jks.com
Kudos for that picture :-)
I have a question about the dead time of the 5370.
Can it be eliminated with a fast enough processor, buffering,
In message 4d61de84.3050...@xtra.co.nz, Bruce Griffiths writes:
Poul-Henning Kamp wrote:
In message466fdfc184a3469eac08eee5ee36c...@hm.clpa.com, Bob Camp writes:
Is the CPU strictly an I/O machine or does it do any of the timing for the
counter?
All the counting is hardware.
El 21/02/2011 05:55, John Seamons escribió:
The next step is to move everything to a microcontroller (e.g. SAM7X) on a card
that replaces the processor board completely.
Perhaps an AT91SAM7SE512 - it has an external addr/data bus, with quite
flexible configuration, and USB - but no Ethernet
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