[font=arial,helvetica]hi al, ·····how are you.? ·I was just looking at ur book on the barns and noble web
site, but I cant find a table of contents... I have one question about the
book is there any Information on Lcd displays...? How to connect a LCD
display to the ·BS2 and the BS2sx and how to get the LCD to display a
message.... thank you again[/font]
Original Message
From: ARTICALEX@aol.com [noparse][[/noparse]mailto:ARTICALEX@aol.com] Sent: Friday, March 16, 2001 9:05 PM To: basicstamps@yahoogroups.com Subject: [noparse][[/noparse]basicstamps] (no subject)
[font=arial,helvetica]hi al, ·····how are you.? ·I was just looking at ur book on the barns and noble web
site, but I cant find a table of contents... I have one question about the
book is there any Information on Lcd displays...? How to connect a LCD
display to the ·BS2 and the BS2sx and how to get the LCD to display a
message.... thank you again
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[font=arial,helvetica]hi ····Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment........... [/font]
[font=arial,helvetica]In a message dated 4/1/01 6:05:37 PM Central Daylight Time, ARTICALEX@AOL.COM
writes:
hi ···Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a
relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment...
It's easy -- just force your program to wait for a release.
Main: ·IF MyButton = 0 THEN Main ·TOGGLE RelayPin
WaitForRelease: ·IF MyButton = 1 THEN WaitForRelease ·GOTO Main ·END
The best way I know of to make a program slow down execution without using a pause statement, would be to put in a loop that does nothing.· The more times you have it loop, the longer it will take to continue on.·
Eric
Original Message
From: ARTICALEX@AOL.COM [noparse][[/noparse]mailto:ARTICALEX@AOL.COM] Sent: Sunday, April 01, 2001 6:05 PM To: basicstamps@yahoogroups.com Subject: [noparse][[/noparse]basicstamps] (no subject)
[font=arial,helvetica]hi ····Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment...........
[font=arial,helvetica]Hi jon, ··············Thank you for your help.. it work fine.... But i have two
other questions. why did you toggle the pin that the relay was conneted to..
The other question ··how can I get ·a serial Lcd to ·display the word
"locked"
[font=arial,helvetica]In a message dated 4/2/01 2:27:22 PM Central Daylight Time, ARTICALEX@AOL.COM
writes:
·············Thank you for your help.. it work fine.... But i have two
other questions. why did you toggle the pin that the relay was conneted
to..
The other question ··how can I get ·a serial Lcd to ·display the word
"locked"
You're welcome.
Since you only specified that the pin was supposed to go back and forth,
TOGGLE was the appropriate keyword -- because it does just that (change the
state of a pin when executed).
Your second second question spawns others before you can make it work.
Generally, though, you need to define a pin for the LCD, set the LCD's baud
rate (if selectable) and then do the appropriate SEROUT. ·Like this:
You have to define LCDpin and LCDbaud. ·The other thing you may need to do is
position the LCD cursor first -- that will mean parameters and data ahead of
the "Locked" string. ·Consult your LCD manual and the docs on SEROUT
(Parallax manual). ·It's all there.
It's possible. I am an AOL user (and certainly NOT proud of it) and in the
last week I recieved unusual amounts of spam, including some really
treatening messages, saying that there has been a fraud on my credit card
and I need to visit the following link to fix it or there has been a security
breach and i need to verify my account etc. Very annoying. And I never give
my email to strangers or unknown sites. Overall it appears to me that AOL is
a magnet for all spammers (looks like aol users get more spam than hotmail
etc), since its security can be overcome by a 8-year old and their "spam
filters" just sit there doing nothing. I wouldnt use AOL if it wasn't free
(for me at least [noparse]:)[/noparse].
[noparse][[/noparse]Non-text portions of this message have been removed]
Gentlemen, I think I addressed this issue once before.
When you are responding to a post please preface your remarks with the name
of the person to whom you are responding. I just read a series of remarks
concerning a bug repeller and I really didn't know who was talking to who,
which made it quite difficult to match up questions and responses.
The signals from a microphone are AC signals, The signals to/from a stamp
are DC logic signals. First decide what kind of AC signals you want the
microphone to process. Select a microphone with the required bandwidth.
Example voice 300 to 3500 hz. signal level -30db, Impedance 600 ohm. What do
you want to accomplish in your project? Do you want voice recognition,
signal processing using A to D conversion.or what?
Regards, Steve
Original Message
From: <ProwlerVIII@a...>
To: <basicstamps@yahoogroups.com>
Sent: Saturday, November 24, 2001 5:33 PM
Subject: [noparse][[/noparse]basicstamps] (no subject)
> can sombody tell me how to hook a microphone to the stamp. iwant to make
a
> sound activated robot. i could figure it out on my own but im lazy.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> 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/
>
>
>
How are you ..? I have a quick question about the pic 16f84..
I've just started expermenting with this microcontroller. I also notice
that there is four pind label RA0 to RA3 I was told that those pins are
outputs how can I configure these pins (RA0,RA1,RA2,RA3) as outputs or
inputs
THANK YOU
wENDELL
[noparse][[/noparse]Non-text portions of this message have been removed]
Greetings all. 2 weeks ago I posted a question involving stepper motor max
rpm's. I'm glad to say that I have found a solution to my problem of low
rpm's. Using B&B Motor Control products I have successfully reached 3,500
rpm.
I'm utilizing a (3535) 3.5amp bipolar chopper drive and a M061 100oz-in
bipolar motor. Programming the BS2 for a ramp up sequence nets 3,500 rpm like
lightning.
Just wanted you all to know and appreciate the much needed info provided by
all.
I was playing around with my serial EEPROM today because I was so bored. I
wound up with a program that will store and read out text in 16-byte blocks.
The storage process can be terminated at any time by filling out your last
16-byte block with " * " characters.
Can't think of any reason why anyone would want a copy, but if you can
possibly think of a use for it, I'll be happy to share. Remember, the storage
is
volatile. The data will stay there just as long as you don't remove the power,
up to 100 years, they tell me.
[noparse][[/noparse]Non-text portions of this message have been removed]
hi , please share with me if you can all the proyect
because i'm trying to do something like that.
regards
Victor Medrano
Newzed@a... wrote:
I was playing around with my serial EEPROM today because I was so bored. I
wound up with a program that will store and read out text in 16-byte blocks.
The storage process can be terminated at any time by filling out your last
16-byte block with " * " characters.
Can't think of any reason why anyone would want a copy, but if you can
possibly think of a use for it, I'll be happy to share. Remember, the storage is
volatile. The data will stay there just as long as you don't remove the power,
up to 100 years, they tell me.
[noparse][[/noparse]Non-text portions of this message have been removed]
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.
--- Newzed@a... wrote:
> I was playing around with my serial EEPROM today
> because I was so bored. I
> wound up with a program that will store and read out
> text in 16-byte blocks.
> The storage process can be terminated at any time by
> filling out your last
> 16-byte block with " * " characters.
> Can't think of any reason why anyone would want a
> copy, but if you can
> possibly think of a use for it, I'll be happy to
> share. Remember, the storage is
> volatile. The data will stay there just as long as
> you don't remove the power,
> up to 100 years, they tell me.
Newzed,
Are you sure you aren't using SRAM? EEPROM is
supposed to be NON-volatile...If you remove the power,
it should retain it's data...Unless technology has
changed on me suddenly...
=====
Chris Savage
Knight Designs
324 West Main Street
Montour Falls, NY 14865
(607) 535-6777
In a message dated 12/28/2003 10:20:53 PM Eastern Standard Time, knight_designs@y... writes:
> Are you sure you aren't using SRAM? EEPROM is
> supposed to be NON-volatile...If you remove the power,
> it should retain it's data...Unless technology has
> changed on me suddenly...
>
>
It was purchased from Parallax as a Serial EEPROM. It has 3 non-volatile
cells; anything stored on the chip disappears when power is removed.
Digikey has a 512K 3-wire chip that is pin compatible and the data sheet for
it
states "3 non-volatile " cells, which leads me to assume that it will also
lose storage when power is removed. Haven't received it yet so I can not say
for sure. Digikey refers to it as an EEPROM - what can I say?
Both data sheets say electronically erasable, which they are. Is there
anything that says an EEPROM has to be non-volatile, and that if it is volatile
it
can not be an EEPROM? I do not know.
Sid
[noparse][[/noparse]Non-text portions of this message have been removed]
Yes, several confusion factors here.
1. 'Non-Volatile' means it keeps its data
when power is removed.
2. "EEPROM" means electrically erasable (EE)
Programmable Read Only Memory (PROM). Unless
you go through the Erasure process, it should
hold its memory. An EEPROM IS non-volatile
(ie holds its memory), that's one of its most
useful properties.
SO: If it's non-volatile, it shouldn't lose its
data when power is removed. If it's EEPROM,
it shouldn't lose its data just because power is
removed.
The statement:
"It has 3 non-volatile cells; anything stored
on the chip disappears when power is removed."
thus does not make sense.
What is the Parallax part number for the part
you've been using? That would tell a lot.
--- In basicstamps@yahoogroups.com, Newzed@a... wrote:
> In a message dated 12/28/2003 10:20:53 PM Eastern Standard Time,
> knight_designs@y... writes:
>
>
> > Are you sure you aren't using SRAM? EEPROM is
> > supposed to be NON-volatile...If you remove the power,
> > it should retain it's data...Unless technology has
> > changed on me suddenly...
> >
> >
>
> It was purchased from Parallax as a Serial EEPROM. It has 3 non-
volatile
> cells; anything stored on the chip disappears when power is
removed.
>
> Digikey has a 512K 3-wire chip that is pin compatible and the data
sheet for
> it
> states "3 non-volatile " cells, which leads me to assume that it
will also
> lose storage when power is removed. Haven't received it yet so I
can not say
> for sure. Digikey refers to it as an EEPROM - what can I say?
>
> Both data sheets say electronically erasable, which they are. Is
there
> anything that says an EEPROM has to be non-volatile, and that if it
is volatile it
> can not be an EEPROM? I do not know.
>
> Sid
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
--- Newzed@a... wrote:
> It was purchased from Parallax as a Serial EEPROM.
> It has 3 non-volatile
> cells; anything stored on the chip disappears when
> power is removed.
> Digikey has a 512K 3-wire chip that is pin
> compatible and the data sheet for
> it
> states "3 non-volatile " cells, which leads me to
> assume that it will also
> lose storage when power is removed. Haven't
> received it yet so I can not say
> for sure. Digikey refers to it as an EEPROM - what
> can I say?
> Both data sheets say electronically erasable, which
> they are. Is there
> anything that says an EEPROM has to be non-volatile,
> and that if it is volatile it
> can not be an EEPROM? I do not know.
Sid,
EEPROM is electrically erasable programmable
read-only memory. EEPROM is a type of PROM that can
be erased by exposing it to an electrical charge. Like
other types of PROM, EEPROM retains its contents even
when the power is turned off. If only 3 cells are
EEPROM, then I don't know why the chip itself would be
called that.
=====
Chris Savage
Knight Designs
324 West Main Street
Montour Falls, NY 14865
(607) 535-6777
Harry, if you do decide to use another bank on the BS2E, remember that the
variables on all banks MUST be the same, and they MUST be in precisely the same
order. When the Stamp looks for a variable like "amount", it doesn't look
for amount - it looks for the location of that variable. So if you have amount
as the first variable on Bank 0 and in the second position on Bank 1, when you
call the variable from Bank 1 it will go the the second variable on Bank 0,
which could be something entirely different, resulting in your loading the
wrong variable.
At 08:04 PM 7/6/04 -0400, Newzed@a... wrote:
>What is the difference between
>
>#if ...#then <-- conditional compilation based on pre-set values, no object code
> is generated for operational program
>and
>
>if...then <-- ordinary conditional phrase where object code is generated
> for operational program
>Sid
>
>
>[noparse][[/noparse]Non-text portions of this message have been removed]
>
>
>
>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.
>
>Yahoo! Groups Links
>
>
>
>
#IF..#THEN is a conditional-compilation construct. It lets the compiler
conditionally-compile sections of code based on specific symbols (e.g,
the BASIC Stamp module).
For example, I have some a program that outputs to a character LCD and I
want it to run on any BS2-family module. At the beginning of my program
I have this symbol definition:
#DEFINE _LcdReady = ($STAMP = BS2P) OR ($STAMP = BS2PE)
I can use this symbol later to conditionally-compile sections of code.
Sections that aren't compiled are not downloaded and do not occupy EE
space (you can verify by changing the $STAMP directive and checking the
Memory Map). Here's how that symbol gets used:
LCD_Command: ' write command to LCD
#IF (_LcdReady) #THEN
LCDCMD E, char
RETURN
#ELSE
LOW RS
GOTO LCD_Write_Char
#ENDIF
LCD_Write_Char: ' write character to LCD
#IF (_LcdReady) #THEN
LCDOUT E, 0, [noparse][[/noparse]char]
#ELSE
BusOuts = char.HIGHNIB ' output high nibble
PULSOUT E, 3 ' strobe the Enable line
BusOuts = char.LOWNIB ' output low nibble
PULSOUT E, 3
HIGH RS ' return to character
mode
#ENDIF
RETURN
If the installed BASIC Stamp is a BS2p or BS2pe, the "THEN" sections
above are compiled and downloaded, otherwise the "ELSE" sections are
compiled and downloaded.
Conditional compilation is very handy for creating programs that will
run on any BASIC Stamp module (within reason). There's a whole section
on the various directives in the Help file.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Archiver
Posts: 46,084
Comments
·····how are you.? ·I was just looking at ur book on the barns and noble web
site, but I cant find a table of contents... I have one question about the
book is there any Information on Lcd displays...? How to connect a LCD
display to the ·BS2 and the BS2sx and how to get the LCD to display a
message.... thank you again[/font]
Yes, the book has a whole chapter on using LCDs and keypads. It covers using 4-bit and 8-bit Hitachi LCDs and a serial LCD as well.
Regards,
Al Williams
AWC
http://www.al-williams.com/awce
Original Message
From: ARTICALEX@aol.com [noparse][[/noparse]mailto:ARTICALEX@aol.com]
Sent: Friday, March 16, 2001 9:05 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] (no subject)
[font=arial,helvetica]hi al,
·····how are you.? ·I was just looking at ur book on the barns and noble web
site, but I cant find a table of contents... I have one question about the
book is there any Information on Lcd displays...? How to connect a LCD
display to the ·BS2 and the BS2sx and how to get the LCD to display a
message.... thank you again
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[/font]
····Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment...........
[/font]
writes:
···Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a
relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment...
It's easy -- just force your program to wait for a release.
Main:
·IF MyButton = 0 THEN Main
·TOGGLE RelayPin
WaitForRelease:
·IF MyButton = 1 THEN WaitForRelease
·GOTO Main
·END
[/font]
Eric
Original Message
From: ARTICALEX@AOL.COM [noparse][[/noparse]mailto:ARTICALEX@AOL.COM]
Sent: Sunday, April 01, 2001 6:05 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] (no subject)
[font=arial,helvetica]hi
····Maybe one you guys can help me with a problem I'm having with a project
I'm working on. ·I reading the logic level of a normally open push button
connected to pin 3, when the button is first press it will engernize a relay.
On the second pressing of the switch it will de-engernize the relay. ·The
problem is if ·the switch is pressed for any long period of time it will
engernize and de-engernize. ·My Question is there any way i can slow up the
program execution, without using the pause statment...........
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[/font]
··············Thank you for your help.. it work fine.... But i have two
other questions. why did you toggle the pin that the relay was conneted to..
The other question ··how can I get ·a serial Lcd to ·display the word
"locked"
Wendell
[/font]
writes:
other questions. why did you toggle the pin that the relay was conneted
to..
The other question ··how can I get ·a serial Lcd to ·display the word
"locked"
You're welcome.
Since you only specified that the pin was supposed to go back and forth,
TOGGLE was the appropriate keyword -- because it does just that (change the
state of a pin when executed).
Your second second question spawns others before you can make it work.
Generally, though, you need to define a pin for the LCD, set the LCD's baud
rate (if selectable) and then do the appropriate SEROUT. ·Like this:
SEROUT LCDpin,LCDbaud,[noparse][[/noparse]"Locked"]
You have to define LCDpin and LCDbaud. ·The other thing you may need to do is
position the LCD cursor first -- that will mean parameters and data ahead of
the "Locked" string. ·Consult your LCD manual and the docs on SEROUT
(Parallax manual). ·It's all there.
-- Jon[/font]
last week I recieved unusual amounts of spam, including some really
treatening messages, saying that there has been a fraud on my credit card
and I need to visit the following link to fix it or there has been a security
breach and i need to verify my account etc. Very annoying. And I never give
my email to strangers or unknown sites. Overall it appears to me that AOL is
a magnet for all spammers (looks like aol users get more spam than hotmail
etc), since its security can be overcome by a 8-year old and their "spam
filters" just sit there doing nothing. I wouldnt use AOL if it wasn't free
(for me at least [noparse]:)[/noparse].
[noparse][[/noparse]Non-text portions of this message have been removed]
When you are responding to a post please preface your remarks with the name
of the person to whom you are responding. I just read a series of remarks
concerning a bug repeller and I really didn't know who was talking to who,
which made it quite difficult to match up questions and responses.
Sid
sound activated robot. i could figure it out on my own but im lazy.
[noparse][[/noparse]Non-text portions of this message have been removed]
are DC logic signals. First decide what kind of AC signals you want the
microphone to process. Select a microphone with the required bandwidth.
Example voice 300 to 3500 hz. signal level -30db, Impedance 600 ohm. What do
you want to accomplish in your project? Do you want voice recognition,
signal processing using A to D conversion.or what?
Regards, Steve
Original Message
From: <ProwlerVIII@a...>
To: <basicstamps@yahoogroups.com>
Sent: Saturday, November 24, 2001 5:33 PM
Subject: [noparse][[/noparse]basicstamps] (no subject)
> can sombody tell me how to hook a microphone to the stamp. iwant to make
a
> sound activated robot. i could figure it out on my own but im lazy.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> 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/
>
>
>
How are you ..? I have a quick question about the pic 16f84..
I've just started expermenting with this microcontroller. I also notice
that there is four pind label RA0 to RA3 I was told that those pins are
outputs how can I configure these pins (RA0,RA1,RA2,RA3) as outputs or
inputs
THANK YOU
wENDELL
[noparse][[/noparse]Non-text portions of this message have been removed]
rpm's. I'm glad to say that I have found a solution to my problem of low
rpm's. Using B&B Motor Control products I have successfully reached 3,500
rpm.
I'm utilizing a (3535) 3.5amp bipolar chopper drive and a M061 100oz-in
bipolar motor. Programming the BS2 for a ramp up sequence nets 3,500 rpm like
lightning.
Just wanted you all to know and appreciate the much needed info provided by
all.
Bruce T. Wynn
wound up with a program that will store and read out text in 16-byte blocks.
The storage process can be terminated at any time by filling out your last
16-byte block with " * " characters.
Can't think of any reason why anyone would want a copy, but if you can
possibly think of a use for it, I'll be happy to share. Remember, the storage
is
volatile. The data will stay there just as long as you don't remove the power,
up to 100 years, they tell me.
[noparse][[/noparse]Non-text portions of this message have been removed]
because i'm trying to do something like that.
regards
Victor Medrano
Newzed@a... wrote:
I was playing around with my serial EEPROM today because I was so bored. I
wound up with a program that will store and read out text in 16-byte blocks.
The storage process can be terminated at any time by filling out your last
16-byte block with " * " characters.
Can't think of any reason why anyone would want a copy, but if you can
possibly think of a use for it, I'll be happy to share. Remember, the storage is
volatile. The data will stay there just as long as you don't remove the power,
up to 100 years, they tell me.
[noparse][[/noparse]Non-text portions of this message have been removed]
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.
Yahoo! Groups Links
To visit your group on the web, go to:
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To unsubscribe from this group, send an email to:
basicstamps-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
Do you Yahoo!?
Free Pop-Up Blocker - Get it now
[noparse][[/noparse]Non-text portions of this message have been removed]
> I was playing around with my serial EEPROM today
> because I was so bored. I
> wound up with a program that will store and read out
> text in 16-byte blocks.
> The storage process can be terminated at any time by
> filling out your last
> 16-byte block with " * " characters.
> Can't think of any reason why anyone would want a
> copy, but if you can
> possibly think of a use for it, I'll be happy to
> share. Remember, the storage is
> volatile. The data will stay there just as long as
> you don't remove the power,
> up to 100 years, they tell me.
Newzed,
Are you sure you aren't using SRAM? EEPROM is
supposed to be NON-volatile...If you remove the power,
it should retain it's data...Unless technology has
changed on me suddenly...
=====
Chris Savage
Knight Designs
324 West Main Street
Montour Falls, NY 14865
(607) 535-6777
http://www.knightdesigns.com
__________________________________
Do you Yahoo!?
New Yahoo! Photos - easier uploading and sharing.
http://photos.yahoo.com/
knight_designs@y... writes:
> Are you sure you aren't using SRAM? EEPROM is
> supposed to be NON-volatile...If you remove the power,
> it should retain it's data...Unless technology has
> changed on me suddenly...
>
>
It was purchased from Parallax as a Serial EEPROM. It has 3 non-volatile
cells; anything stored on the chip disappears when power is removed.
Digikey has a 512K 3-wire chip that is pin compatible and the data sheet for
it
states "3 non-volatile " cells, which leads me to assume that it will also
lose storage when power is removed. Haven't received it yet so I can not say
for sure. Digikey refers to it as an EEPROM - what can I say?
Both data sheets say electronically erasable, which they are. Is there
anything that says an EEPROM has to be non-volatile, and that if it is volatile
it
can not be an EEPROM? I do not know.
Sid
[noparse][[/noparse]Non-text portions of this message have been removed]
1. 'Non-Volatile' means it keeps its data
when power is removed.
2. "EEPROM" means electrically erasable (EE)
Programmable Read Only Memory (PROM). Unless
you go through the Erasure process, it should
hold its memory. An EEPROM IS non-volatile
(ie holds its memory), that's one of its most
useful properties.
SO: If it's non-volatile, it shouldn't lose its
data when power is removed. If it's EEPROM,
it shouldn't lose its data just because power is
removed.
The statement:
"It has 3 non-volatile cells; anything stored
on the chip disappears when power is removed."
thus does not make sense.
What is the Parallax part number for the part
you've been using? That would tell a lot.
--- In basicstamps@yahoogroups.com, Newzed@a... wrote:
> In a message dated 12/28/2003 10:20:53 PM Eastern Standard Time,
> knight_designs@y... writes:
>
>
> > Are you sure you aren't using SRAM? EEPROM is
> > supposed to be NON-volatile...If you remove the power,
> > it should retain it's data...Unless technology has
> > changed on me suddenly...
> >
> >
>
> It was purchased from Parallax as a Serial EEPROM. It has 3 non-
volatile
> cells; anything stored on the chip disappears when power is
removed.
>
> Digikey has a 512K 3-wire chip that is pin compatible and the data
sheet for
> it
> states "3 non-volatile " cells, which leads me to assume that it
will also
> lose storage when power is removed. Haven't received it yet so I
can not say
> for sure. Digikey refers to it as an EEPROM - what can I say?
>
> Both data sheets say electronically erasable, which they are. Is
there
> anything that says an EEPROM has to be non-volatile, and that if it
is volatile it
> can not be an EEPROM? I do not know.
>
> Sid
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
> It was purchased from Parallax as a Serial EEPROM.
> It has 3 non-volatile
> cells; anything stored on the chip disappears when
> power is removed.
> Digikey has a 512K 3-wire chip that is pin
> compatible and the data sheet for
> it
> states "3 non-volatile " cells, which leads me to
> assume that it will also
> lose storage when power is removed. Haven't
> received it yet so I can not say
> for sure. Digikey refers to it as an EEPROM - what
> can I say?
> Both data sheets say electronically erasable, which
> they are. Is there
> anything that says an EEPROM has to be non-volatile,
> and that if it is volatile it
> can not be an EEPROM? I do not know.
Sid,
EEPROM is electrically erasable programmable
read-only memory. EEPROM is a type of PROM that can
be erased by exposing it to an electrical charge. Like
other types of PROM, EEPROM retains its contents even
when the power is turned off. If only 3 cells are
EEPROM, then I don't know why the chip itself would be
called that.
=====
Chris Savage
Knight Designs
324 West Main Street
Montour Falls, NY 14865
(607) 535-6777
http://www.knightdesigns.com
__________________________________
Do you Yahoo!?
Find out what made the Top Yahoo! Searches of 2003
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Harry, if you do decide to use another bank on the BS2E, remember that the
variables on all banks MUST be the same, and they MUST be in precisely the same
order. When the Stamp looks for a variable like "amount", it doesn't look
for amount - it looks for the location of that variable. So if you have amount
as the first variable on Bank 0 and in the second position on Bank 1, when you
call the variable from Bank 1 it will go the the second variable on Bank 0,
which could be something entirely different, resulting in your loading the
wrong variable.
Sid Weaver
We're always thinking.....
http://www.visualmuses.com/chipcircuit/index.html
[noparse][[/noparse]Non-text portions of this message have been removed]
#if ...#then
and
if...then
Sid
[noparse][[/noparse]Non-text portions of this message have been removed]
>What is the difference between
>
>#if ...#then <-- conditional compilation based on pre-set values, no object code
> is generated for operational program
>and
>
>if...then <-- ordinary conditional phrase where object code is generated
> for operational program
>Sid
>
>
>[noparse][[/noparse]Non-text portions of this message have been removed]
>
>
>
>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.
>
>Yahoo! Groups Links
>
>
>
>
conditionally-compile sections of code based on specific symbols (e.g,
the BASIC Stamp module).
For example, I have some a program that outputs to a character LCD and I
want it to run on any BS2-family module. At the beginning of my program
I have this symbol definition:
#DEFINE _LcdReady = ($STAMP = BS2P) OR ($STAMP = BS2PE)
I can use this symbol later to conditionally-compile sections of code.
Sections that aren't compiled are not downloaded and do not occupy EE
space (you can verify by changing the $STAMP directive and checking the
Memory Map). Here's how that symbol gets used:
LCD_Command: ' write command to LCD
#IF (_LcdReady) #THEN
LCDCMD E, char
RETURN
#ELSE
LOW RS
GOTO LCD_Write_Char
#ENDIF
LCD_Write_Char: ' write character to LCD
#IF (_LcdReady) #THEN
LCDOUT E, 0, [noparse][[/noparse]char]
#ELSE
BusOuts = char.HIGHNIB ' output high nibble
PULSOUT E, 3 ' strobe the Enable line
BusOuts = char.LOWNIB ' output low nibble
PULSOUT E, 3
HIGH RS ' return to character
mode
#ENDIF
RETURN
If the installed BASIC Stamp is a BS2p or BS2pe, the "THEN" sections
above are compiled and downloaded, otherwise the "ELSE" sections are
compiled and downloaded.
Conditional compilation is very handy for creating programs that will
run on any BASIC Stamp module (within reason). There's a whole section
on the various directives in the Help file.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: Newzed@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=qqkoiqje2MyVP9aweJIW2qUvpgfQE3zTPGXQsolTB9It5uucgGZ3699fq0tE739L-IEAxmIqSrCQ]Newzed@a...[/url
Sent: Tuesday, July 06, 2004 7:05 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] (no subject)
What is the difference between
#if ...#then
and
if...then
Sid
to check a BS2. Will this do it
outs = 1
do
toggle outs
pause 200
loop
Sid
[noparse][[/noparse]Non-text portions of this message have been removed]