Author: BrunoGDate: 11:07 02-11-07
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Author: Tim ShoppaDate: 11:31 02-11-07
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On Nov 2, 11:07 am, "BrunoG" <nore...@micro-examples.com> wrote:
> Hi,
>
> Here is my suggestion to turn your oscilloscope into a clock with a PIC a 4
> resistors :http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscill...
>
> I'm opened to your destructive comments :)
I remember hacking 6800 assembly code as a kid and tweaking R's and
C's in my ramp generator until I had spelled out my name on the scope
screen :-).
Somewhere on the world-wide-interweb is a 50's era article that shows
how to synthesize some very nicely rendered digits onto a X-Y display
using sine/cosine waves and harmonics.
Tim.
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Author: Bill ChernoffDate: 11:39 02-11-07
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Author: Joel KoltnerDate: 12:08 02-11-07
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Author: BrunoGDate: 12:09 02-11-07
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On Nov 2, 12:09 pm, "BrunoG" <nore...@micro-examples.com> wrote:
> "DJ Delorie" <d...@delorie.com> a =E9crit dans le message de news:
> xnabpw7il3....@delorie.com...
>
>
>
> > "BrunoG" <nore...@micro-examples.com> writes:
> >>http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscill...
>
> > Your schematic has +5v connected directly to GND.
>
> > The project itself is cool, though.
>
> Well spotted !
> I should have named the topic "how to turn your expensive power supply in=
to
> carbon".
> Schematic has been corrected ;-)
>
> Thanks !
>
> Bruno
Ah.
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Author: Deep ResetDate: 12:44 02-11-07
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Author: Walter BanksDate: 13:21 02-11-07
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Author: msgDate: 13:52 02-11-07
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Tim Shoppa wrote:
> On Nov 2, 11:07 am, "BrunoG" <nore...@micro-examples.com> wrote:
>
>>Hi,
>>
>>Here is my suggestion to turn your oscilloscope into a clock with a PIC a 4
>>resistors
:http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscill...
>>
>>I'm opened to your destructive comments :)
>
>
> I remember hacking 6800 assembly code as a kid and tweaking R's and
> C's in my ramp generator until I had spelled out my name on the scope
> screen :-).
>
> Somewhere on the world-wide-interweb is a 50's era article that shows
> how to synthesize some very nicely rendered digits onto a X-Y display
> using sine/cosine waves and harmonics.
>
There was a nice article in the Proceedings of the IRE from the '50s
about doing just that -- it was a lot like a QEX article from more
recent times.
Regards,
Michael
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Author: Guy MaconDate: 14:06 02-11-07
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Sorry, I was too busy using a $10,000.00 computer to replace
a 99 cent pack of playing cards while playing solitaire...
--
Guy Macon
<http://www.guymacon.com/>;
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Author: Tim WilliamsDate: 18:01 02-11-07
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Author: StoneThrowerDate: 19:12 02-11-07
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Author: JamieDate: 19:16 02-11-07
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Author: Don BoweyDate: 21:46 02-11-07
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On Nov 3, 12:46 pm, Don Bowey <dbo...@comcast.net> wrote:
> On 11/2/07 4:16 PM, in article OkNWi.130$474...@newsfe06.lga, "Jamie"
>
> <jamie_ka1lpa_not_valid_after_ka1l...@charter.net> wrote:
> > DJ Delorie wrote:
>
> >> "BrunoG" <nore...@micro-examples.com> writes:
>
>
>>>http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscill...
>
> >> Your schematic has +5v connected directly to GND.
>
> >> The project itself is cool, though.
> > Look again.
> > it's not to ground, or at least when I looked at it it wasn't.
>
> It sure looks like it's tied to ground.
>
> Maybe you should reconsider this AND coupling capacitors.
I think you will find the small schematic on the page does have the
power supply short.
When you click it for the enlargement, you get the corrected version.
Depending on your age and your monitor the one directly on the page is
difficult to see if it is correct or not.
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Author: Arie de MuynckDate: 05:41 03-11-07
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"BrunoG" <noreply@micro-examples.com> wrote
>
> Here is my suggestion to turn your oscilloscope into a clock with a PIC a
> 4 resistors :
> http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscillo-clock
>
> I'm opened to your destructive comments :)
Neat design, generating text in Y/T mode.
Let's be constructive:
With a small SW change you could put a needle ('invisible') pulse in each
image trace at the point in time where the scope should start, the scope
should be able to trigger on that. Just have enough time between images so
the scope hold off time has finished (normally not more than 10..20% of the
sweep time).
For most scopes this removes the need for the trigger cable (which still
makes thinks look as if you are doing X-Y control). For rotten scopes one
could still connect the old trigger output.
Regards,
Arie de Muynck
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Author: redbellyDate: 10:28 03-11-07
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On Nov 2, 11:07 am, "BrunoG" <nore...@micro-examples.com> wrote:
> Hi,
>
> Here is my suggestion to turn your oscilloscope into a clock with a PIC a 4
> resistors :http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscill...
>
> I'm opened to your destructive comments :)
>
> Bruno
Neat.
Could one make the 4th "unused" voltage level something out of range
of the display, so that the extra lines are not visible?
Mark
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Author: John LarkinDate: 15:14 03-11-07
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