Ok, thanks Don.  I'm offering these to distributors at 40% off the retail 
price as usual if you are interested.

-Ben

At 06:00 AM 10/11/2001 +1000, you wrote:


>Ben Wirz wrote:
> >
> > Hello Everyone,
> >
> >          Wirz Electronics has released our new SIMMBread Board product for
> > SimmStick prototyping.  It has several SimmSockets, a bread board, power
> > supply, and prototyping components in a complete solder it yourself
> > kit.  The kit contains all the parts necessary except a power supply which
> > can be a wall adapter or a battery.  Feel free to visit our web site for
> > more information.
> >
> > http://www.wirz.com/products/0231/index.html
>
>nice work Ben, have just added some links from my pages.
>
>Don McKenzie    mailto:don@d...      http://www.dontronics.com
>
>PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
>The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software
>
>
>To Post a message, send it to:   simmstick@e...
>
>To Unsubscribe, send a blank message to: simmstick-unsubscribe@e...
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Ben Wirz                           mailto:ben@w...
Wirz Electronics                   http://www.wirz.com/

SLI-OEM - The most cost effective Serial LCD available!

Don,

Is it a forgone conclusion that a low resistance for R3 on a DT106 will
dissipate the magic smoke in the crystal?

I accidentally got a 47 ohm resister instead of a 470 ohm installed (old
eyes & small color code bands...bad combination, but I pulled it from the
400+ ohm drawer...honest) and there seems to be no 20 Mhz oscillation
present at pin 13 or 14 on the 877. (and all the I/O pins seem to be sitting
at 2.5 volts)



Didn't have time to swap out the crytal for a new one.



Robert "Mac" McIlvaine
email: rmcilvaine@z... <mailto:rmcilvaine@z...>
phone: 603 647-1000 x1185
fax: 603 647-9470
Zydacron, Inc.
7 Perimeter Rd.
Manchester, NH 03103
www.zydacron.com <http://www.zydacron.com>
 


> -----Original Message-----
> From: simmstick@yahoogroups.com [mailto:simmstick@yahoogroups.com]
> Sent: Thursday, October 11, 2001 6:24 AM
> To: simmstick@yahoogroups.com
> Subject: [simmstick] Digest Number 250
> 
> 
> To Post a message, send it to:   simmstick@e...
> 
> To Unsubscribe, send a blank message to: 
> simmstick-unsubscribe@e...
> --------------------------------------------------------------
> ----------
> 
> There is 1 message in this issue.
> 
> Topics in this digest:
> 
>       1. Re: New SimmStick Product
>            From: Ben Wirz <ben@w...>
> 
> 
> ______________________________________________________________
> __________
> ______________________________________________________________
> __________
> 
> Message: 1
>    Date: Wed, 10 Oct 2001 20:16:51 -0400
>    From: Ben Wirz <ben@w...>
> Subject: Re: New SimmStick Product
> 
> Ok, thanks Don.  I'm offering these to distributors at 40% 
> off the retail 
> price as usual if you are interested.
> 
> -Ben
> 
> At 06:00 AM 10/11/2001 +1000, you wrote:
> 
> 
> >Ben Wirz wrote:
> > >
> > > Hello Everyone,
> > >
> > >          Wirz Electronics has released our new SIMMBread 
> Board product for
> > > SimmStick prototyping.  It has several SimmSockets, a 
> bread board, power
> > > supply, and prototyping components in a complete solder 
> it yourself
> > > kit.  The kit contains all the parts necessary except a 
> power supply which
> > > can be a wall adapter or a battery.  Feel free to visit 
> our web site for
> > > more information.
> > >
> > > http://www.wirz.com/products/0231/index.html
> >
> >nice work Ben, have just added some links from my pages.
> >
> >Don McKenzie    mailto:don@d...      
http://www.dontronics.com
>
>PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
>The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software
>
>
>To Post a message, send it to:   simmstick@e...
>
>To Unsubscribe, send a blank message to: simmstick-unsubscribe@e...
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Ben Wirz                           mailto:ben@w...
Wirz Electronics                   http://www.wirz.com/

SLI-OEM - The most cost effective Serial LCD available!



________________________________________________________________________
________________________________________________________________________



Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

"McIlvaine, Robert" wrote:
> 
> Don,

Hi Mac, one message to the SimmStick group is fine thanks, if you send
another to me, I end up with two.

> Is it a forgone conclusion that a low resistance for R3 on a DT106 will
> dissipate the magic smoke in the crystal?

Not really, I have seen them run without the resistor, but not
recommended.

> I accidentally got a 47 ohm resister instead of a 470 ohm installed (old
> eyes & small color code bands...bad combination, but I pulled it from the
> 400+ ohm drawer...honest) and there seems to be no 20 Mhz oscillation
> present at pin 13 or 14 on the 877. (and all the I/O pins seem to be sitting
> at 2.5 volts)

looking with a CRO?
most other test gear will load it and stop the oscillation anyway.
 
> Didn't have time to swap out the crytal for a new one.

you may have to, but then it may be a "Mac Code Bug(c)" if the osc is
actually running.

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

15-Oct-2001 
GPS SimmStick from CommLinx Solutions 
http://www.commlinx.com.au/GPS_SimmStick.htm 

15-Oct-2001 
Lower Prices on PICmicro P16PRO Software registration. 
http://www.dontronics.com/p16pro.html 

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

Probably the easiest way to do this is to hook up a DTMF decoder to the
speaker on the cellphone.  Then, ring up the cellphone and hit one of the
buttons on the phone you are calling from, and the signal will get sent
down the wire and decoded into a signal for your PIC.

This gives you 12 signals to choose from (16 if you use a separate encoder
as well).  

If you get really keen you could decode the DTMF signal using the PIC
itself:
http://www.interstice.com/~sdattalo/technical/theory/dtmf.html

You would probably have to set up the cellphone to auto-answer, which many
cellphones let you do.  Then get the PIC to send some commands to the
microphone circuit in the phone and it could beep at you to let you know
that the command had been received.

All good fun :-)

Cheers,
Ben

> I would like to give commands to a PIC 16F877 by using a cellular phone. So that I can call that cellphone and give a start or a stop signal to the PIC.
> Can someone help me finding documentation, sample code......
> 
> Joris

> 15-Oct-2001 
> GPS SimmStick from CommLinx Solutions 
> http://www.commlinx.com.au/GPS_SimmStick.htm 

Hi Gang, as I have had a few inquiries about the above, I thought I
better explain in more detial.

"Peter Johnson" <peter@c...>
developed the GPS and used the SimmStick platform to be able to
interface to the outside world easily.
The way I see it, the SimmStick portion of the project is an interface
card that connects the GPS to a SimmStick bus.

If you wish to purchase the GPS unit, and want the SimmStick I/F also,
then you can purchase from Peter directly, as I have no stock of these
items, and only found out about the unit yesterday.

Please, at this point, if you can direct your questions to Peter, it
would be appreciated.

Cheers Don...

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

I am attempting to convert a system from 16F84 (on a DT101) to 16F877 (on a
DT106).

This is my first attempt with the 16F877. All hardware is external to the
DT101/106, in other words it's on the SIMM bus. So, in theory, I should be
able to swap boards and things should work the same.

Using FED PIXIE C, the software is easy to convert from 84 to 877. At least
I think it was, since things are't working when I plug in the DT106, I'm not
sure. It compiles and simulates ok, but in the real circuit it doesn't work.

I added the 'All Digital' element after building 877 version of the project
several times. Does anybody know what signs I can look for to verify that it
has indeed been added?

Do other FED PIXIE users know of any caveats for this sort of software
conversion?

In doing this I've come up with a few questions:

- I program the 877 on another DT106, which is in the first slot of a DT001.
  Will I be able to program the 877 again if I disable the LVP? I'm using
RB3 as digital I/O.
  In other words, is the DT001 a high voltage programmer (a quick look at
the schematic seems to say yes)
  and therefore I don't need LVP mode.

- From what I've read so far, the pull-up structure of the 84 and the 877
seem to be the same. But,
  from a quick look at the signals, it appears I need pull-ups when using
the 877 that weren't required
  when using the 84. (Observed this late last night, will try a pull-up
tonight)

- In the DT106 schematic, why is there a pull-up (R6) on A4/RA4 and not on
other I/O pins.
  (Except R4 on C3 & R5 on C4, which appear to be required for the I2C
devices, if used)

- I have two 16F877's one is labeled 16F877-04 and one 16F877-20. What's the
difference?
  (The MicroChip doc shows the designations in some tables about commercial
& industrial grade
  but I wasn't able to find a definition)

- Are there any caveats about the 16F877 that I should be aware of?

I probably have more questions...but I need more coffee.

Regards,
Mac

Robert "Mac" McIlvaine
email: rmcilvaine@z... <mailto:rmcilvaine@z...>
phone: 603 647-1000 x1185
fax: 603 647-9470
Zydacron, Inc.
7 Perimeter Rd.
Manchester, NH 03103
www.zydacron.com <http://www.zydacron.com>
 


> -----Original Message-----
> From: simmstick@yahoogroups.com [mailto:simmstick@yahoogroups.com]
> Sent: Tuesday, October 16, 2001 7:10 AM
> To: simmstick@yahoogroups.com
> Subject: [simmstick] Digest Number 253
> 
> 
> To Post a message, send it to:   simmstick@e...
> 
> To Unsubscribe, send a blank message to: 
> simmstick-unsubscribe@e...
> --------------------------------------------------------------
> ----------
> 
> There are 3 messages in this issue.
> 
> Topics in this digest:
> 
>       1. Cellphones and PIC
>            From: "jorish" <jorish@e...>
>       2. Re: Cellphones and PIC
>            From: Ben Hitchcock <benhi98@w...>
>       3. simmstick Today's News
>            From: Don McKenzie <don@d...>
> 
> 
> ______________________________________________________________
> __________
> ______________________________________________________________
> __________
> 
> Message: 1
>    Date: Mon, 15 Oct 2001 20:55:43 -0700
>    From: "jorish" <jorish@e...>
> Subject: Cellphones and PIC
> 
> I would like to give commands to a PIC 16F877 by using a 
> cellular phone. So that I can call that cellphone and give a 
> start or a stop signal to the PIC.
> Can someone help me finding documentation, sample code......
> 
> Joris 
> 
> 
> [This message contained attachments]
> 
> 
> 
> ______________________________________________________________
> __________
> ______________________________________________________________
> __________
> 
> Message: 2
>    Date: Tue, 16 Oct 2001 11:48:01 +1000 (EST)
>    From: Ben Hitchcock <benhi98@w...>
> Subject: Re: Cellphones and PIC
> 
> Probably the easiest way to do this is to hook up a DTMF 
> decoder to the
> speaker on the cellphone.  Then, ring up the cellphone and 
> hit one of the
> buttons on the phone you are calling from, and the signal 
> will get sent
> down the wire and decoded into a signal for your PIC.
> 
> This gives you 12 signals to choose from (16 if you use a 
> separate encoder
> as well).  
> 
> If you get really keen you could decode the DTMF signal using the PIC
> itself:
> http://www.interstice.com/~sdattalo/technical/theory/dtmf.html
> 
> You would probably have to set up the cellphone to 
> auto-answer, which many
> cellphones let you do.  Then get the PIC to send some commands to the
> microphone circuit in the phone and it could beep at you to 
> let you know
> that the command had been received.
> 
> All good fun :-)
> 
> Cheers,
> Ben
> 
> > I would like to give commands to a PIC 16F877 by using a 
> cellular phone. So that I can call that cellphone and give a 
> start or a stop signal to the PIC.
> > Can someone help me finding documentation, sample code......
> > 
> > Joris 
> 
> 
> 
> ______________________________________________________________
> __________
> ______________________________________________________________
> __________
> 
> Message: 3
>    Date: Tue, 16 Oct 2001 15:21:03 +1000
>    From: Don McKenzie <don@d...>
> Subject: simmstick Today's News
> 
> 
> > 15-Oct-2001 
> > GPS SimmStick from CommLinx Solutions 
> > http://www.commlinx.com.au/GPS_SimmStick.htm 
> 
> Hi Gang, as I have had a few inquiries about the above, I thought I
> better explain in more detial.
> 
> "Peter Johnson" <peter@c...>
> developed the GPS and used the SimmStick platform to be able to
> interface to the outside world easily.
> The way I see it, the SimmStick portion of the project is an interface
> card that connects the GPS to a SimmStick bus.
> 
> If you wish to purchase the GPS unit, and want the SimmStick I/F also,
> then you can purchase from Peter directly, as I have no stock of these
> items, and only found out about the unit yesterday.
> 
> Please, at this point, if you can direct your questions to Peter, it
> would be appreciated.
> 
> Cheers Don...
> 
> Don McKenzie    mailto:don@d...      
> http://www.dontronics.com
> 
> PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD 
> Off Retail
> The World's Largest Range of Atmel/AVR &  PICmicro Hardware 
> and Software
> 
> 
> ______________________________________________________________
> __________
> ______________________________________________________________
> __________
> 
> 
> 
> Your use of Yahoo! Groups is subject to 
> http://docs.yahoo.com/info/terms/ 
> 
>

Can the HCT126 be replaced be an LS126? I tried to find a HCT device 
but was not available. Would there be any timing or output drive 
issues?

Thanks.

xchet@y... wrote:
> 
> Can the HCT126 be replaced be an LS126? I tried to find a HCT device
> but was not available. Would there be any timing or output drive
> issues?

I used the HTC in the design, as it was not designed by me, and
specified by the designer. The LS may well work OK. I think it was a
design Mark Alberts used that he picked up from someone else. Sounds
like a bit of a friend of a friend story doesn't it? I would use a
socket and try the LS if they are readily available to you.

BTW
The DT206 will be an obsolete board shortly. It worked fine for the 8252
and 2051, but as soon as we tried the then new 4051, we had problems
with the design, so as sson as the last are sold, they will be
discontinued. 

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

>
>
> xchet@y... wrote:
> >
> > Can the HCT126 be replaced be an LS126? I tried to find a HCT device
> > but was not available. Would there be any timing or output drive
> > issues?
>
> I used the HTC in the design, as it was not designed by me, and
> specified by the designer. The LS may well work OK. I think it was a
> design Mark Alberts used that he picked up from someone else. Sounds
> like a bit of a friend of a friend story doesn't it? I would use a
> socket and try the LS if they are readily available to you.

HCT will have a higher o/p voltage spec with a minimal i/p current compared
to LS.
It may work or it may not I would suggest you use sockets and/or check the
specs of the components in the circuit.

Rod
ps I've had a quick look at the circuit and you may run into problems with
the minimum o/p high voltage of the LS part. A pull up resistor of ~10k on
each o/p would assist. But you will need to'suck it and see'.

I have a sleeve of 74HCT126's. I don't remember where I got them, maybe
Harris. I will look for the invoice and let you know. Recent purchase, so I
think the are still available.

Hi,

I'm building the DT206 for programming 89C2051 chips. I need help 
with the positioning of the programming socket. Do I need a 20 pin 
socket or a 40 pin zif. what is the purpose of the 40 pin socket?

I followed the instructions but I'm a bit confused.

Thanks all.

xchet@y... wrote:
> 
> Hi,
> 
> I'm building the DT206 for programming 89C2051 chips. I need help
> with the positioning of the programming socket. Do I need a 20 pin
> socket or a 40 pin zif. what is the purpose of the 40 pin socket?
> 
> I followed the instructions but I'm a bit confused.

Have added a small section of the data from the dt206 page below. It
means you can use a 20 or a 40 pin socket if it is only used for a 2051.
I would recommend you get the two strips of headers as suggested below,
and solder them in. This will allow you to push an aries 40 pin socket
into the board. The aries is usually easier to get than the textool
green ones, and you can use it on different projects if you don't solder
it to anything. I haven't soldered a ZIF socket in 10 years now. I
re-use them.

see:
http://www.dontronics.com/hints.html

Cheers Don...

Method 1: 
My first recommendation is to get a good quality 40 pin machine pin
socket, hopefully one of the types that has three struts in the center
that can be easily removed, so that two strips of 20 pin headers can be
made. Alternatively, you may be able to get 2 strips of 20 pins. This
makes it easy. Solder the two strips into the socket area marked 1-20
and 21-40. This lines up with the number 1 in the string of 1-2-3
numbers. These are at .6" centers. Get an Aries 40 pin socket. This will
push into the 2 strips you have installed. This allows you to remove the
socket for other projects (even on this board) if you wish. 

Method 2: 
Solder a 20 pin Textool socket into the .3" positions marked 1-10,
11-20. Or using the methods in hints.html, go via 2 strips of 10 pin
headers so that this socket can be removed for other projects as well. 

What are positions 2 and 3?? 
read http://www.dontronics.com/dt206.html

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

Thanks Don, that was helpful. I read the instructions several times 
now. :-)

Why this board is obsolete now? Has it been replaced by another one?

Thanks.

--- In simmstick@y..., Don McKenzie <don@d...> wrote:
> 
> 
> xchet@y... wrote:
> > 
> > Hi,
> > 
> > I'm building the DT206 for programming 89C2051 chips. I need help
> > with the positioning of the programming socket. Do I need a 20 pin
> > socket or a 40 pin zif. what is the purpose of the 40 pin socket?
> > 
> > I followed the instructions but I'm a bit confused.
> 
> Have added a small section of the data from the dt206 page below. It
> means you can use a 20 or a 40 pin socket if it is only used for a 
2051.
> I would recommend you get the two strips of headers as suggested 
below,
> and solder them in. This will allow you to push an aries 40 pin 
socket
> into the board. The aries is usually easier to get than the textool
> green ones, and you can use it on different projects if you don't 
solder
> it to anything. I haven't soldered a ZIF socket in 10 years now. I
> re-use them.
> 
> see:
> http://www.dontronics.com/hints.html
> 
> Cheers Don...
> 
> Method 1: 
> My first recommendation is to get a good quality 40 pin machine pin
> socket, hopefully one of the types that has three struts in the 
center
> that can be easily removed, so that two strips of 20 pin headers 
can be
> made. Alternatively, you may be able to get 2 strips of 20 pins. 
This
> makes it easy. Solder the two strips into the socket area marked 1-
20
> and 21-40. This lines up with the number 1 in the string of 1-2-3
> numbers. These are at .6" centers. Get an Aries 40 pin socket. This 
will
> push into the 2 strips you have installed. This allows you to 
remove the
> socket for other projects (even on this board) if you wish. 
> 
> Method 2: 
> Solder a 20 pin Textool socket into the .3" positions marked 1-10,
> 11-20. Or using the methods in hints.html, go via 2 strips of 10 pin
> headers so that this socket can be removed for other projects as 
well. 
> 
> What are positions 2 and 3?? 
> read http://www.dontronics.com/dt206.html
> 
> Don McKenzie    mailto:don@d...      http://www.dontronics.com
> 
> PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off 
Retail
> The World's Largest Range of Atmel/AVR &  PICmicro Hardware and 
Software

xchet@y... wrote:
> 
> Thanks Don, that was helpful. I read the instructions several times
> now. :-)
> 
> Why this board is obsolete now? Has it been replaced by another one?
> 
> Thanks.

No haven't replaced it. It was designed for the 2051 and isn't 100% sure
with the 4051, so I stopped production. We got a lot of bad feed back
with the 4051. tried extra caps etc., some people went OK with it.
Bear in mind, it was designed before the 4051 was.

There was never a big call for the dt206 anyway. Like all SimmSticks, I
give it a try, if it isn't popular, I have to drop it. I have 4 x DT206
boards left.

I have had to drop the SimmStick Video (dt108) because they have stopped
production of the chips.
I have 28 of those left, and when they are gone, they are gone.

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

I just completed the DT206 and it is working great. I programmed a 
2051 with wled.hex, powered off, powered on , verified, erased, 
powered off, did a blank check. Every step was fine. I haven't done 
any LED test as I didn't had time to find the parts but will do it 
later.

Thanks.

Forgot to mention a small problem. I'm using DT206 on a DT004 simm 
slot 1. I connected the DT004 only to check the voltage levels with 
DT004 connected to PC and PC powered on. Later I powered off DT004, 
connected DT206 (without 2051) to it the power LED came on (even the 
DT004 was not powered).


--- In simmstick@y..., xchet@y... wrote:
> I just completed the DT206 and it is working great. I programmed a 
> 2051 with wled.hex, powered off, powered on , verified, erased, 
> powered off, did a blank check. Every step was fine. I haven't done 
> any LED test as I didn't had time to find the parts but will do it 
> later.
> 
> Thanks.

There are GSM and CDMA modems available, depending on application one of these may be a solution.
For the GSM versions you can use your existing SIM card
There are several types  vvarying from RS232 I/P to a programmable controller virtually a PLC
Cheers
Leon Blakeley

Ben Hitchcock wrote:

> Probably the easiest way to do this is to hook up a DTMF decoder to the
> speaker on the cellphone.  Then, ring up the cellphone and hit one of the
> buttons on the phone you are calling from, and the signal will get sent
> down the wire and decoded into a signal for your PIC.
>
> This gives you 12 signals to choose from (16 if you use a separate encoder
> as well).
>
> If you get really keen you could decode the DTMF signal using the PIC
> itself:
> http://www.interstice.com/~sdattalo/technical/theory/dtmf.html
>
> You would probably have to set up the cellphone to auto-answer, which many
> cellphones let you do.  Then get the PIC to send some commands to the
> microphone circuit in the phone and it could beep at you to let you know
> that the command had been received.
>
> All good fun :-)
>
> Cheers,
> Ben
>
> > I would like to give commands to a PIC 16F877 by using a cellular phone. So that I can call that cellphone and give a start or a stop signal to the PIC.
> > Can someone help me finding documentation, sample code......
> >
> > Joris
>
>
> To Post a message, send it to:   simmstick@e...
>
> To Unsubscribe, send a blank message to: simmstick-unsubscribe@e...
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/




--
Leon Blakeley
CFA Communications
Ph (03) 92628400
Fax  (03) 92628383

PO Box 701
Mt. Waverley
3149

We are wondering about choosing a SimmStick pin for a 3.3V supply on boards
which can be powered by 3.3V alone. All of our 3.3V controllers (such as
JStamp) have TTL I/O levels and are 5V tolerant so they can be mixed with 5V
cards.

Here is our current JSimm pin useage: http://jsimm.systronix.com/jsimm_pins.pdf

We have three spares at this time:
pin 5 CI
pin 14  IO/A6
pin 30 D15

Which of these would create the least problem by making it a 3.3V supply - pin
5?

Thanks

Bruce Boyes

  -- Embedded Java Technology --
Systronix: Salt Lake City Utah, USA
 801-534-1017 www.systronix.com

Bruce Boyes Systronix wrote:
> 
> We are wondering about choosing a SimmStick pin for a 3.3V supply on boards
> which can be powered by 3.3V alone. All of our 3.3V controllers (such as
> JStamp) have TTL I/O levels and are 5V tolerant so they can be mixed with 5V
> cards.
> 
> Here is our current JSimm pin useage: http://jsimm.systronix.com/jsimm_pins.pdf
> 
> We have three spares at this time:
> pin 5 CI
> pin 14  IO/A6
> pin 30 D15
> 
> Which of these would create the least problem by making it a 3.3V supply - pin
> 5?

Hi Bruce,
as we design new boards, we have been dropping the connections to CI and
CO as the only micro that really needs them is the scenix type chip. It
is used for programming. In fact, we believe it was a mistake to bring
the clock signals out to the bus.

So yes, I would say pin 5 would be the best choice. No current interface
card makes use of this pin.
You may need to warn users to check existing SimmStick micro boards for
pin 5 connection. 

Cheers Don...

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

19-Nov-2001 
Add USB to your product in 10 minutes. 
http://www.dontronics.com/giga.html 

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

New 24-Nov-2001 
SX48 Ubicon (Scenix) Module: 
Making life simpler for developers and hobbyists 
http://www.dontronics.com/giga.html#sx48 

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

Hi, I'm new to the PIC world.
My starting attempt in programming this PIC have shown a needing for 
some sort of tools to trace programm execution.
Does anybody have suggestions for SW tools which do require a 
specialized HW platform ?
Thanks in advance
Giacomo

What I'm using:
- DT001 + DT111 boards
- MPLAB 5.40
- Nigel Godwin's PicProg877 v1.71 (a friendly & complete program, in 
my opinion).

Hi, another question...
I built the above platform to program some PIC16F84A.
With a chance of 50%, this set seems not to talk with the PC on the 
parallel port.

I'm using the PicProg877 sw from Nigel Godwin. This sw has debugging 
capabilities which shows that there is a correct communication between 
the PC and th DT111, but when I perform a Reading from PIC or a 
Writing to it, nothing really happens (all 3FFF in reading).

If I move the PIC from the DT111 to the DT001, it is always programmed 
and verified correctly.

Again, this does not happen all the times; I was able to program the 
PIC on the DT111 several times.

Quite for sure, there is an hardware problem...but which and where?
Any ideas ?
Thanks
Giacomo

New 26-Nov-2001
USBIO24: USB to 24 TTL I/O Signals:
This module combines the power of USB and an Ubicom SX48. The module
offers 3 x 8 bit programmable I/O ports
Supplied firmware allows the ports to be individually pin programmed as
inputs or outputs. Supplied software allow you to access the ports
directly from a DLL or as a virtual serial port with a simple command
protocol. Firmware can be developed for this module for application
specific tasks. 

http://www.dontronics.com/giga.html

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

hectorzoe@l... wrote:

> If I move the PIC from the DT111 to the DT001, it is always programmed
> and verified correctly.
> 
> Again, this does not happen all the times; I was able to program the
> PIC on the DT111 several times.
> 
> Quite for sure, there is an hardware problem...but which and where?
> Any ideas ?
> Thanks
> Giacomo

sounds like you have a problem on the dt111 board if the chip programs
in the dt001 socket at all times. 

do you have dual +5V power? or max-232?
It is basically only a 5 wire cct.

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

hectorzoe@l... wrote:
> 
> Hi, I'm new to the PIC world.
> My starting attempt in programming this PIC have shown a needing for
> some sort of tools to trace programm execution.
> Does anybody have suggestions for SW tools which do require a
> specialized HW platform ?
> Thanks in advance
> Giacomo
> 
> What I'm using:
> - DT001 + DT111 boards
> - MPLAB 5.40
> - Nigel Godwin's PicProg877 v1.71 (a friendly & complete program, in
> my opinion).

you mean like a simulator?
Isn't there one built into mplab?

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

PICMicro C Compiler & PICC-18 C Compiler by Hi-Tech @ $100USD Off Retail
The World's Largest Range of Atmel/AVR &  PICmicro Hardware and Software

On 26/11/01 6:46 AM, "Don McKenzie" <don@d...> wrote:

> New 26-Nov-2001
> USBIO24: USB to 24 TTL I/O Signals:
> This module combines the power of USB and an Ubicom SX48. The module
> offers 3 x 8 bit programmable I/O ports
> Supplied firmware allows the ports to be individually pin programmed as
> inputs or outputs. Supplied software allow you to access the ports
> directly from a DLL or as a virtual serial port with a simple command
> protocol. Firmware can be developed for this module for application
> specific tasks. 
> 
> http://www.dontronics.com/giga.html

Some questions:
Are there MacOS drivers for this ( I could not quite tell from the site)?

Will the Linux driver compile under OS-X (BSD with MACH kernel)?

What sort of data through and (more important for me) latency can we expect?
If I send 1 bit down the serial port, will the serial drivers wait for a
chunk of time trying to buffer data into USB-friendly blobs, or initiate a
send immediately of that a single-bit?


Best,
Tim