BS2 EEPROM? Was: PIC vs. Basic Stamp
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Posts: 46,084
Hi:
After looking at the Parallax site, I wondered,
Could you increase the BS2 EEPROM to the size of
the IISX? Same price but more 14 more K.
Or is the speed difference make it not feasable?
Dave
--- digidean88 <Dean_Severns@W...> wrote:
> I am tired of hearing people complain about the cost
> of stamps. This
> is a circuit board assembly with additional
> features, that is being
> compared against the cost of a PIC chip. What a lot
> of people may not
> realize, is that once you have a prototype going
> using the DIP
> packaged Stamp. You can buy just the uController
> with PBASIC
> programmed into it and put onto your own board for
> <$10 depending on
> qty. ~$7 for 50 for Ubicom SX48 with PBASIC. (Ubicom
> SX48 is used in
> BS2P)
>
> I have successfully used these parts in two
> fiber-optic controller
> products. (These are products, not projects.)
>
> Time to working prototype for these < six weeks.
> Used the Parallax
> development board to breadboard the control circuits
> and develop code
> before the schematic was finalized and while the
> board was laid-out,
> fabricated, and assembled. As soon as assembled
> boards came in,
> PBASIC code was ready to go.
>
> There are only a few things to be careful about.
> 1. Use the same resonator as the stamp board.
> (Available from
> Parallax)
> 2. Attach an EEPROM for your code that is compatible
> with that on the
> stamp board. (Available from Parallax)
> 3. Bring out the proper pins for serial programming,
> TX,RX, & ATN.
> The reset is needed to signal PBASIC for downloading
> code.
> 4. Make a little RS-232 cable dongle that will
> convert signals to TTL
> level and echo back characters so the Stamp Editor
> detects the serial
> port to allow programming user code. (B&B
> Electronics make nice
> little line powered converters Model 232LPTTL for
> ~$30. But still
> need to add the echo req'd for Stamp Editor.)
>
> So stop cost bashing the Basic Stamps!
>
> Dean
>
> --- In basicstamps@y..., "Chris Savage"
> <knight_designs@y...> wrote:
> > --- In basicstamps@y..., Brian <stamp@k...> wrote:
> > > On Tue, 2002-11-05 at 09:15, robert nelson
> wrote:
> > > > Cost and speed are what I found. PIC Chips
> from what I have
> found
> > are
> > > > $10 USD or less, the Stamps from what I found
> are $30USD and
> up.
> > > > I do not know the exact figures but PIC chips
> do things a lot
> > faster
> > > > then Stamps.
> > > A couple more thoughts from me [noparse]:)[/noparse]
> > > 1) Speed is often, but not always important.
> I've rarely ever
> said
> > > I would have to say that for just about any
> beginner to
> > > microcontrollers, or anyone doing a 1-off
> project, one thing that
> > the
> > > PICs *don't* do faster is lend themselves to a
> shortened
> development
> > > cycle.
> >
> > I agree with Brian...I'm a little old school, and
> I used to design
> my
> > controllers around a Z80, EPROM, SRAM, PIA, and
> other I/O chips as
> > needed...Development of controllers was a bit
> tedious, to say the
> > least. Stamps make things ALOT easier, and in
> most of the control
> > applications I have seen, the Stamp is more than
> adequate in terms
> of
> > speed.
> >
> > Chris Savage
> > Knight Designs
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed.
> Text in the Subject and Body of the message will be
> ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
=====
"These acts were intended to frighten us, but they
have failed. Terrorist acts can shake the
foundations of our biggest buildings but
cannot touch the foundation of America." --
President George W. Bush, address to the nation;
about Sep. 11, 2001 terrorist attack.
__________________________________________________
Do you Yahoo!?
U2 on LAUNCH - Exclusive greatest hits videos
http://launch.yahoo.com/u2
After looking at the Parallax site, I wondered,
Could you increase the BS2 EEPROM to the size of
the IISX? Same price but more 14 more K.
Or is the speed difference make it not feasable?
Dave
--- digidean88 <Dean_Severns@W...> wrote:
> I am tired of hearing people complain about the cost
> of stamps. This
> is a circuit board assembly with additional
> features, that is being
> compared against the cost of a PIC chip. What a lot
> of people may not
> realize, is that once you have a prototype going
> using the DIP
> packaged Stamp. You can buy just the uController
> with PBASIC
> programmed into it and put onto your own board for
> <$10 depending on
> qty. ~$7 for 50 for Ubicom SX48 with PBASIC. (Ubicom
> SX48 is used in
> BS2P)
>
> I have successfully used these parts in two
> fiber-optic controller
> products. (These are products, not projects.)
>
> Time to working prototype for these < six weeks.
> Used the Parallax
> development board to breadboard the control circuits
> and develop code
> before the schematic was finalized and while the
> board was laid-out,
> fabricated, and assembled. As soon as assembled
> boards came in,
> PBASIC code was ready to go.
>
> There are only a few things to be careful about.
> 1. Use the same resonator as the stamp board.
> (Available from
> Parallax)
> 2. Attach an EEPROM for your code that is compatible
> with that on the
> stamp board. (Available from Parallax)
> 3. Bring out the proper pins for serial programming,
> TX,RX, & ATN.
> The reset is needed to signal PBASIC for downloading
> code.
> 4. Make a little RS-232 cable dongle that will
> convert signals to TTL
> level and echo back characters so the Stamp Editor
> detects the serial
> port to allow programming user code. (B&B
> Electronics make nice
> little line powered converters Model 232LPTTL for
> ~$30. But still
> need to add the echo req'd for Stamp Editor.)
>
> So stop cost bashing the Basic Stamps!
>
> Dean
>
> --- In basicstamps@y..., "Chris Savage"
> <knight_designs@y...> wrote:
> > --- In basicstamps@y..., Brian <stamp@k...> wrote:
> > > On Tue, 2002-11-05 at 09:15, robert nelson
> wrote:
> > > > Cost and speed are what I found. PIC Chips
> from what I have
> found
> > are
> > > > $10 USD or less, the Stamps from what I found
> are $30USD and
> up.
> > > > I do not know the exact figures but PIC chips
> do things a lot
> > faster
> > > > then Stamps.
> > > A couple more thoughts from me [noparse]:)[/noparse]
> > > 1) Speed is often, but not always important.
> I've rarely ever
> said
> > > I would have to say that for just about any
> beginner to
> > > microcontrollers, or anyone doing a 1-off
> project, one thing that
> > the
> > > PICs *don't* do faster is lend themselves to a
> shortened
> development
> > > cycle.
> >
> > I agree with Brian...I'm a little old school, and
> I used to design
> my
> > controllers around a Z80, EPROM, SRAM, PIA, and
> other I/O chips as
> > needed...Development of controllers was a bit
> tedious, to say the
> > least. Stamps make things ALOT easier, and in
> most of the control
> > applications I have seen, the Stamp is more than
> adequate in terms
> of
> > speed.
> >
> > Chris Savage
> > Knight Designs
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed.
> Text in the Subject and Body of the message will be
> ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
=====
"These acts were intended to frighten us, but they
have failed. Terrorist acts can shake the
foundations of our biggest buildings but
cannot touch the foundation of America." --
President George W. Bush, address to the nation;
about Sep. 11, 2001 terrorist attack.
__________________________________________________
Do you Yahoo!?
U2 on LAUNCH - Exclusive greatest hits videos
http://launch.yahoo.com/u2
Comments
extra program memory.
They have some different coding in the ROM that allows it to page in and out
the 2k chunks.
The BS2 doesn't have the extra coding to do it.
You can see this difference as a part number hint in the actual OEM
interpreter chips
http://www.parallaxinc.com/html_files/products/BS_OEM/interpreter_chips.asp
section at the Parallax web site.
Original Message
From: Dave La Rosa [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=MmLazP0MX6_cipPk9QSH42UK_G9tbtCXvCLm4GXWq-f190TyFOtbHEI6g88ekUK2pvFXiF9LSxt0fw]dalgroups@y...[/url
Sent: Saturday, November 09, 2002 10:35 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] BS2 EEPROM? Was: PIC vs. Basic Stamp
Hi:
After looking at the Parallax site, I wondered,
Could you increase the BS2 EEPROM to the size of
the IISX? Same price but more 14 more K.
Or is the speed difference make it not feasable?
Dave
--- digidean88 <Dean_Severns@W...> wrote:
> I am tired of hearing people complain about the cost
> of stamps. This
> is a circuit board assembly with additional
> features, that is being
> compared against the cost of a PIC chip. What a lot
> of people may not
> realize, is that once you have a prototype going
> using the DIP
> packaged Stamp. You can buy just the uController
> with PBASIC
> programmed into it and put onto your own board for
> <$10 depending on
> qty. ~$7 for 50 for Ubicom SX48 with PBASIC. (Ubicom
> SX48 is used in
> BS2P)
>
> I have successfully used these parts in two
> fiber-optic controller
> products. (These are products, not projects.)
>
> Time to working prototype for these < six weeks.
> Used the Parallax
> development board to breadboard the control circuits
> and develop code
> before the schematic was finalized and while the
> board was laid-out,
> fabricated, and assembled. As soon as assembled
> boards came in,
> PBASIC code was ready to go.
>
> There are only a few things to be careful about.
> 1. Use the same resonator as the stamp board.
> (Available from
> Parallax)
> 2. Attach an EEPROM for your code that is compatible
> with that on the
> stamp board. (Available from Parallax)
> 3. Bring out the proper pins for serial programming,
> TX,RX, & ATN.
> The reset is needed to signal PBASIC for downloading
> code.
> 4. Make a little RS-232 cable dongle that will
> convert signals to TTL
> level and echo back characters so the Stamp Editor
> detects the serial
> port to allow programming user code. (B&B
> Electronics make nice
> little line powered converters Model 232LPTTL for
> ~$30. But still
> need to add the echo req'd for Stamp Editor.)
>
> So stop cost bashing the Basic Stamps!
>
> Dean
>
> --- In basicstamps@y..., "Chris Savage"
> <knight_designs@y...> wrote:
> > --- In basicstamps@y..., Brian <stamp@k...> wrote:
> > > On Tue, 2002-11-05 at 09:15, robert nelson
> wrote:
> > > > Cost and speed are what I found. PIC Chips
> from what I have
> found
> > are
> > > > $10 USD or less, the Stamps from what I found
> are $30USD and
> up.
> > > > I do not know the exact figures but PIC chips
> do things a lot
> > faster
> > > > then Stamps.
> > > A couple more thoughts from me [noparse]:)[/noparse]
> > > 1) Speed is often, but not always important.
> I've rarely ever
> said
> > > I would have to say that for just about any
> beginner to
> > > microcontrollers, or anyone doing a 1-off
> project, one thing that
> > the
> > > PICs *don't* do faster is lend themselves to a
> shortened
> development
> > > cycle.
> >
> > I agree with Brian...I'm a little old school, and
> I used to design
> my
> > controllers around a Z80, EPROM, SRAM, PIA, and
> other I/O chips as
> > needed...Development of controllers was a bit
> tedious, to say the
> > least. Stamps make things ALOT easier, and in
> most of the control
> > applications I have seen, the Stamp is more than
> adequate in terms
> of
> > speed.
> >
> > Chris Savage
> > Knight Designs
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed.
> Text in the Subject and Body of the message will be
> ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
=====
"These acts were intended to frighten us, but they
have failed. Terrorist acts can shake the
foundations of our biggest buildings but
cannot touch the foundation of America." --
President George W. Bush, address to the nation;
about Sep. 11, 2001 terrorist attack.
__________________________________________________
Do you Yahoo!?
U2 on LAUNCH - Exclusive greatest hits videos
http://launch.yahoo.com/u2
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/