I was thinking of a local control system, say distributed across pallets
that need monitoring, with the ability to talk to a central unit via dialup
in order to upload new state parameters and download warnings etc.

On 13/10/00 6:38 pm, "Ling SM" <sm.ling@c...> wrote:

>> a 1-liner comms bus like i2c would be cool. Plus there are some nice
> thermometer chips and stuff for it, so it could be simple as well as
> cool.
> 
>> lots of industrial apps could use it too: think a couple of dozen
> cheap PID
> loop thermostats able to act local, but still be polled by 1 device
> that has
> a modem - great cost savings.
> 
> 
> Sorry I can't follow the modem part - What do you see the modem is
> doing here? Thought the whole process would be control locally.
> 
> 
> Cheers, Ling SM

Hi,

Someone was looking for an eprom eraser... check this out

http://www.savon-electronics.com/eprom.htm

XChet

--- In simmstick@egroups.com, Lynndon Harnell <lynndonh@e...> wrote:
> 
> I have a circuit which uses the DS1307 RTC under the I2C bus, which 
I 
> originally drove with a DT104 with 2313 under AVR Bascom. Then I 
found that 
> it needed 10k pullups on the SDA and SCL pins to make it work.
> 
> I then switched to a SIM100 with 8535 and the same code under AVR 
Bascom, 
> and found it did not work (yes I changed the pin numbers in the 
code to 
> suit the different board).
> 
>  From my circuit diagrams they are the same simmstick pins 10,11.
> 
> Is it possibly the pull-ups are not required for the 8535, or 
something else.
> 
> Any assistance would be appreciated.\

Hi Lynndon,

Are you using the same speed crystal as with the 2313?  Bascom seems 
to use Timer1 to run the I2C so a different crystal may affect the 
timing.  Also, I usually disable interrupts during I2C read/write as 
this may also affect I2C timing.  Good Luck

Andrew Riddett

Hi Everyone,

Does anyone know of a good cheap (or shareware) circuit diagram 
editor?

Thanks,
Andrew

10k for the pull-ups seems to be a bit high, try something between
1k and 2k. 

good luck,
     Reelf

riddy@n... schrieb:
> 
> --- In simmstick@egroups.com, Lynndon Harnell <lynndonh@e...> wrote:
> >
> > I have a circuit which uses the DS1307 RTC under the I2C bus, which
> I
> > originally drove with a DT104 with 2313 under AVR Bascom. Then I
> found that
> > it needed 10k pullups on the SDA and SCL pins to make it work.
> >
> > I then switched to a SIM100 with 8535 and the same code under AVR
> Bascom,
> > and found it did not work (yes I changed the pin numbers in the
> code to
> > suit the different board).
> >
> >  From my circuit diagrams they are the same simmstick pins 10,11.
> >
> > Is it possibly the pull-ups are not required for the 8535, or
> something else.
> >
> > Any assistance would be appreciated.\
> 
> Hi Lynndon,
> 
> Are you using the same speed crystal as with the 2313?  Bascom seems
> to use Timer1 to run the I2C so a different crystal may affect the
> timing.  Also, I usually disable interrupts during I2C read/write as
> this may also affect I2C timing.  Good Luck
> 
> Andrew Riddett
> 
> 
> To Post a message, send it to:   simmstick@e...
> 
> To Unsubscribe, send a blank message to: simmstick-unsubscribe@e...

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             Bamberg & Monsees GbR
         Steindamm 22 * D-28719 Bremen
   Fon +49-421-646775 * Fax +49-421-646785
             http://www.sywitec.de

--- In simmstick@egroups.com, Lynndon Harnell wrote:
>
> I have a circuit which uses the DS1307 RTC under the I2C bus, which
I
> originally drove with a DT104 with 2313 under AVR Bascom. Then I
found that
> it needed 10k pullups on the SDA and SCL pins to make it work.
>
> I then switched to a SIM100 with 8535 and the same code under AVR
Bascom,
> and found it did not work (yes I changed the pin numbers in the
code to
> suit the different board).
>
>  From my circuit diagrams they are the same simmstick pins 10,11.
>
> Is it possibly the pull-ups are not required for the 8535, or
something else.
>
> Any assistance would be appreciated.\

Hi Lynndon,

Are you using the same speed crystal as with the 2313?  Bascom seems
to use Timer1 to run the I2C so a different crystal may affect the
timing.  Also, I usually disable interrupts during I2C read/write as
this may also affect I2C timing.  Good Luck

Andrew Riddett

for those that have asked, the SimmStick video page has been updated.
thanks Lionel.
http://www.dontronics.com/dt108.html

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

19-Oct-2000
DT007 Micro MotherBoard for SimmStick Platform. Now Available.
http://www.dontronics.com/dt007.html

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Hi Lynnden,

If your micro is in the middle of a write to the I2C bus and an 
interrupt occurs it may upset the timing of the I2C routine.  
Secondly, if you have gone from a 4MHz crystal on your original 
design with the 2313 to say, a 12Mhz crystal on the 8535 the I2C may 
run too fast for some I2C chips.  I am no expert on I2C bus, maybe 
somebody else knows more about it?

regards,
Andrew Riddett

Hi Lynnden,

If your micro is in the middle of a write to the I2C bus and an
interrupt occurs it may upset the timing of the I2C routine. 
Secondly, if you have gone from a 4MHz crystal on your original
design with the 2313 to say, a 12Mhz crystal on the 8535 the I2C may
run too fast for some I2C chips.  I am no expert on I2C bus, maybe
somebody else knows more about it?

regards,
Andrew Riddett


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>
> 19-Oct-2000
> DT007 Micro MotherBoard for SimmStick Platform. Now Available.
> http://www.dontronics.com/dt007.html
>

I noticed that when I hit the "Order" button, the DT007's are priced at $0.
How many can I order at this special price?

On 20/10/00 2:56 pm, "Kevin L. Pauba" <klpauba@h...> wrote:

>> 
>> 19-Oct-2000
>> DT007 Micro MotherBoard for SimmStick Platform. Now Available.
>> http://www.dontronics.com/dt007.html
>> 
> 
> I noticed that when I hit the "Order" button, the DT007's are priced at $0.
> How many can I order at this special price?

you may order as many as you wish, but be aware that ech comes with a free
gift, priced at $599 ;-)

tim

Timothy Bates wrote:
> 
> On 20/10/00 2:56 pm, "Kevin L. Pauba" <klpauba@h...> wrote:
> 
> >>
> >> 19-Oct-2000
> >> DT007 Micro MotherBoard for SimmStick Platform. Now Available.
> >> http://www.dontronics.com/dt007.html
> >>
> >
> > I noticed that when I hit the "Order" button, the DT007's are priced at $0.
> > How many can I order at this special price?
> 
> you may order as many as you wish, but be aware that ech comes with a free
> gift, priced at $599 ;-)
> 
> tim

correct Tim, however we have it on special at $499. :-)
caught me mid stream, bet it doesn't show $0 anymore.

http://www.dontronics.com/cat_hard_simmstick.html
has been fully updated with all the new boards on it including the Video
SimmStick.

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Hi People,

I have assembled DT001 without the following components:
J7, J12, J13, J9, J10, J5, J8, J4, D3, C8-11, Boot, Reset, R7, G8, 
C6, D4, E2 (Max232) and 4PDT.

For a while I would like to use this as a programmer only and have 
installed the 18 pin socket & J1 for programming. I'm not using the 
simm programming. If I need to program chip only, do I need to have 
the Run <--> Load switch? Should it be left open or hardwired?

Any input will be appreciated.

Thanks

Chet

XChet wrote:
> 
> Hi People,
> 
> I have assembled DT001 without the following components:
> J7, J12, J13, J9, J10, J5, J8, J4, D3, C8-11, Boot, Reset, R7, G8,
> C6, D4, E2 (Max232) and 4PDT.
> 
> For a while I would like to use this as a programmer only and have
> installed the 18 pin socket & J1 for programming. I'm not using the
> simm programming. If I need to program chip only, do I need to have
> the Run <--> Load switch? Should it be left open or hardwired?
> 
> Any input will be appreciated.
> 
> Thanks
> 

Hi Chet,
the switch only controls slot one of the Simm Bus.
The position for the 18 pin socket is controlled directly from the
parallel port, so you don't need to install the 4pdt switch at all if
you are only using the on board socket.

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Thanks a lot :-)



--- In simmstick@egroups.com, Don McKenzie <don@d...> wrote:
> 
> 
> XChet wrote:
> > 
> > Hi People,
> > 
> > I have assembled DT001 without the following components:
> > J7, J12, J13, J9, J10, J5, J8, J4, D3, C8-11, Boot, Reset, R7, G8,
> > C6, D4, E2 (Max232) and 4PDT.
> > 
> > For a while I would like to use this as a programmer only and have
> > installed the 18 pin socket & J1 for programming. I'm not using 
the
> > simm programming. If I need to program chip only, do I need to 
have
> > the Run <--> Load switch? Should it be left open or hardwired?
> > 
> > Any input will be appreciated.
> > 
> > Thanks
> > 
> 
> Hi Chet,
> the switch only controls slot one of the Simm Bus.
> The position for the 18 pin socket is controlled directly from the
> parallel port, so you don't need to install the 4pdt switch at all 
if
> you are only using the on board socket.
> 
> Don McKenzie    mailto:don@d...      http://www.dontronics.com
> 
> The World's Largest Range of Atmel/AVR  & PICmicro Hardware and 
Software
> Free Basic Compiler and Programmer 
http://www.dontronics.com/runavr.html
> The Little "rAVeR!" AVR & Basic Kit 
http://www.dontronics.com/dt006.html

Dear Friends

Miniaturemost AVR based counter with LCD display design help needed. Will
pay for the development.

1. An 8 digit accumalated event counter with reset key and mini backlit LCD
display
2. Count rate into display (selection by a toggle key for counts and count
rate)
3. Three set point alarm sounds for exceeding count rates levels
4. Optional: 100m range within buildings RF link with remote system ID for
each counter

Shyam (robotics@g...)

Hi People,

Finally I got the DT001 (programmer only) working. I encountered a 
few problems as I was using P16Pro eval copy. I couldn't find the 
P16Pro hardware settings on the DT001 assembly page. I was missing 
the NEG on VPP1, VPP2 and VDD so the software would turn off vpp & 
vdd when programming :-). An hour later I found the settings 
somewhere on Don's site.

Don, please put a link to those settings on DT001 page. :-)


Thanks.

Chet

Chet,

If you switch to PicAll from the same person, it allows you to program from
windows and has a config setting allowing you to tell the software that you
are using the DT001.

Brian




At 07:52 AM 10/29/2000 , you wrote:
>Hi People,
>
>Finally I got the DT001 (programmer only) working. I encountered a 
>few problems as I was using P16Pro eval copy. I couldn't find the 
>P16Pro hardware settings on the DT001 assembly page. I was missing 
>the NEG on VPP1, VPP2 and VDD so the software would turn off vpp & 
>vdd when programming :-). An hour later I found the settings 
>somewhere on Don's site.
>
>Don, please put a link to those settings on DT001 page. :-)
>
>
>Thanks.
>
>Chet
>
>
>
>To Post a message, send it to:   simmstick@e...
>
>To Unsubscribe, send a blank message to: simmstick-unsubscribe@e...
>

XChet wrote:
> 
> Hi People,
> 
> Finally I got the DT001 (programmer only) working. I encountered a
> few problems as I was using P16Pro eval copy. I couldn't find the
> P16Pro hardware settings on the DT001 assembly page. I was missing
> the NEG on VPP1, VPP2 and VDD so the software would turn off vpp &
> vdd when programming :-). An hour later I found the settings
> somewhere on Don's site.
> 
> Don, please put a link to those settings on DT001 page. :-)

The DT001 programmer hardware settings are on the P16PRO page and the
PICALLW software has the settings "DT001" on the hardware settings page,
which you must go through to set any programmer up before it will work,
but I'll add this info to the DT001 hardware.

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

posted with permission, looking for feedback.
=============================================
Subject:         Any Market for a high current full bridge DC motor
drive SimmStick?
   Date:         Fri, 27 Oct 2000 13:49:54 +0930
   From:         "MACAULAY, Andrew" <andrew.macaulay@b...>
     To:         "'don@d...'" <don@d...>

G'day Don,
I was just wondering if you think there may be interest in a SimmStick
I/O
board with a  high current interface board, full bridge DC motor
controller.
I have been using a cct (low component count) that could drive into the
tens
of Amps (only limited by effective heat sinking and FET selection).  All
that's needed to speed control (in both directions) is a PWM signal, a
direction bit, and an enable bit. It would also require a separate High
current supply to drive the motor (Car battery?).

The cct is based on the Linear Tech LT1162 device, uses 4 N channel FETS
(lower on resistance) and a charge pump for the high side switching on
the
upper FETS.  Last time I looked the LT parts were < AUS$15, other
components
needed is some simple gate logic, couple of caps, diodes, and a suitable
connector.

I guess it would only appeal to anyone looking to power (and speed
control)
some form of wheel chair, robot etc and use their favourite SimmStick
host
for the actual control.

I actually have a client (actually a friend -  the worst kind) using the
cct
with very demanding peak loads (start up at around 35A, run at about
7A).
My preference is to redesign his system using SimmStick technology but
his
quantities would not justify me laying up the design my self.  Anyway if
you
think it may  be 'nice' to have in the product lineup I could send you
the
data.  I don't want or expect any money/etc for the design but I'd be
glad
to test your first board if you go ahead with it,

Regards,

Andrew Macaulay

=====================
Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Thanks Brian, Thanks Don. I tried DT001 on a 12C508A /JW device and 
programmed a flashing LED program. Now I'm looking for G4T5 to erase 
that :-). I'm getting a deal for $20.


Thanks a lot guys.

Chet


--- In simmstick@egroups.com, Brian Gracia <bgracia@t...> wrote:
> Chet,
> 
> If you switch to PicAll from the same person, it allows you to 
program from
> windows and has a config setting allowing you to tell the software 
that you
> are using the DT001.
> 
> Brian
> 


++++++++++>>>>>>>> Don Wrote.... 

The DT001 programmer hardware settings are on the P16PRO page and the
PICALLW software has the settings "DT001" on the hardware settings 
page,
which you must go through to set any programmer up before it will 
work,
but I'll add this info to the DT001 hardware.

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and 
Software
Free Basic Compiler and Programmer 
http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit 
http://www.dontronics.com/dt006.html

XChet wrote:
> 
> Thanks Brian, Thanks Don. I tried DT001 on a 12C508A /JW device and
> programmed a flashing LED program. Now I'm looking for G4T5 to erase
> that :-). I'm getting a deal for $20.

G4T5?

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

G4T5 is the UV tube eqv. of F4T5 (normal light tube). I got the 
driver circuit from a fluorescent flashlight ($8). So my homemade 
eprom eraser would cost less than $30. I'll add a timer using 4060 
another 60 cents. :-)

Chet


--- In simmstick@egroups.com, Don McKenzie <don@d...> wrote:
> 
> that :-). I'm getting a deal for $20.
> 
> G4T5?
>

To remind all, the SimmStick Design Contest 2000 only has a day or two
before the final entries line is drawn, so if you have a project and
haven't entered, this is the last opportunity. We can only wait till
midnight on the 31st for any late entries, and when the globe spins onto
the 1st day of November, we will start our judging.

I just had a look at the Circuit Cellar magazine Design2K Contest
winners. They have multiple prizes, but I noticed a grand prize winner
was Robert LACOSTE, and a second prize winner, Lionel Theunissen.

It is very interesting to note that our 1999 SimmStick contest was won
by Robert LACOSTE (France), and our second prize winner Lionel
Theunissen (Australia).

So our judges didn't do too bad a job hey?
BTW, third prize winner in our 1999 contest was Rick Cathriner (TX USA). 

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Forgot to mention that I'm using 2N3906 for Q1 & Q2 (turned 180°) and 
they are working fine.

The wall adapter is 14VAC @ 200ma

Thanks.

--- In simmstick@egroups.com, "XChet " <xchet@y...> wrote:
> Hi People,
> 
> Finally I got the DT001 (programmer only) working. I encountered a 
> few problems as I was using P16Pro eval copy. I couldn't find the 
> P16Pro hardware settings on the DT001 assembly page. I was missing 
> the NEG on VPP1, VPP2 and VDD so the software would turn off vpp & 
> vdd when programming :-). An hour later I found the settings 
> somewhere on Don's site.
> 
> Don, please put a link to those settings on DT001 page. :-)
> 
> 
> Thanks.
> 
> Chet

Bruce Barnes wrote:
> 
> Hi Don:
> Do you make any SimmStick extension boards?
> I need to get an emulator system plugged into the PIC socket, and there
> is no room for the adptor pins to fit in!
> Respectfully, Bruce Barnes
> University of Idaho

Hi Bruce, I guess I would need to see what it is you are trying to do,
but I would think one of two methods would do this.

1) Move the socket away from the component side of the board. Use a
stack of machine pin sockets to build up the pod position above other
components on the board.

2) Move the socket away from the bus connection. Use a DT204 to move the
board away from the motherboard. You can build a christmas tree like
structure with DT204's.
see: http://www.dontronics.com/dont.html

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

31-Oct-2000 
BASCOM-8051 Book Introduction to microcontroller programming using
BASCOM. 
http://www.dontronics.com/bascom_book.html 

Don McKenzie    mailto:don@d...      http://www.dontronics.com

The World's Largest Range of Atmel/AVR  & PICmicro Hardware and Software
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html
The Little "rAVeR!" AVR & Basic Kit http://www.dontronics.com/dt006.html

Hi 

It seems that it is going to happen finally :)

ATmega163 Datasheet was released today!!!!!!!

direct link from http://www.case2000.com/avr

or you may browse to http://www.atmel.com of course

Antti

PS I know some people would like to use ATmega163 on SimmStick
platform (we already do so...)