Serial Port
2006-09-21 by x2dydx
What sort of things would the serial port be used for?
Thread
Serial Port
Re: Serial Port
2006-09-21 by mike
--- In 50g@yahoogroups.com, "x2dydx" <x2dydx@...> wrote:
else u can think of :D
Mick
>Mainly hooking up to survey instruments for surveyors, any anything
> What sort of things would the serial port be used for?
>
else u can think of :D
Mick
RE: [50g] Re: Serial Port
2006-09-21 by DRD
I use an hp48sx (serial) communication for working with remote terminal units such as data acquisition devices using the modbus protocol, and others. I use it on a daily basis, and have been very pleased with the small size and programmability features. I would very much like to do the same with the hp50g, and take advantage of its larger screen size and enhanced processing power. Now if I could just lay my hands on that darn cable!
Re: Serial Port
2006-09-21 by al.arduengo
--- In 50g@yahoogroups.com, "x2dydx" <x2dydx@...> wrote:
Really you could use it for lots of things that require a serial
connection. My next project is to play around with using it with a
GPS unit.
-Al
>I have used mine for communicating with and controlling a telescope.
> What sort of things would the serial port be used for?
>
Really you could use it for lots of things that require a serial
connection. My next project is to play around with using it with a
GPS unit.
-Al
Re: Serial Port
2006-09-22 by x2dydx
--- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@...> wrote:
did you overcome this problem? Did the serial cable come with your
telescope? Or is the serial cable available from some other source or
did you build one? Any guidance you can offer is appreciated. Thanks.
>I read somewhere that the serial cable is not available from HP. How
> --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> >
> > What sort of things would the serial port be used for?
> >
>
> I have used mine for communicating with and controlling a telescope.
> Really you could use it for lots of things that require a serial
> connection. My next project is to play around with using it with a
> GPS unit.
>
> -Al
>
did you overcome this problem? Did the serial cable come with your
telescope? Or is the serial cable available from some other source or
did you build one? Any guidance you can offer is appreciated. Thanks.
Re: Serial Port
2006-09-22 by Scott
--- In 50g@yahoogroups.com, "x2dydx" <x2dydx@...> wrote:
find more details.
>telescope.
> --- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@> wrote:
> >
> > --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> > >
> > > What sort of things would the serial port be used for?
> > >
> >
> > I have used mine for communicating with and controlling a
> > Really you could use it for lots of things that require a serialwith a
> > connection. My next project is to play around with using it
> > GPS unit.How
> >
> > -Al
> >
> I read somewhere that the serial cable is not available from HP.
> did you overcome this problem? Did the serial cable come withyour
> telescope? Or is the serial cable available from some othersource or
> did you build one? Any guidance you can offer is appreciated.Thanks.
>I used a Mini 4-B USB connector. Search comp.sys.hp48 and you'll
find more details.
Re: Serial Port
2006-09-23 by al.arduengo
--- In 50g@yahoogroups.com, "x2dydx" <x2dydx@...> wrote:
my telescope. I modified a standard 9 pin cable to work with my
calculator cable. However, as soon as I get a cable for the 50g, I do
not foresee any problems.
I for one am happy that they included this capability on the new machine!
-Al
>I should have been more clear. Sorry. I used a 48GX serial port for
> --- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@> wrote:
> >
> > --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> > >
> > > What sort of things would the serial port be used for?
> > >
> >
> > I have used mine for communicating with and controlling a telescope.
> > Really you could use it for lots of things that require a serial
> > connection. My next project is to play around with using it with a
> > GPS unit.
> >
> > -Al
> >
> I read somewhere that the serial cable is not available from HP. How
> did you overcome this problem? Did the serial cable come with your
> telescope? Or is the serial cable available from some other source or
> did you build one? Any guidance you can offer is appreciated. Thanks.
>
my telescope. I modified a standard 9 pin cable to work with my
calculator cable. However, as soon as I get a cable for the 50g, I do
not foresee any problems.
I for one am happy that they included this capability on the new machine!
-Al
Re: Serial Port
2006-09-23 by Scott
--- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@...> wrote:
standard device. It's a 3.3V TTL signal (noninverted). There
should be a third-party cable soon if you don't want to make one
yourself.
--Scott
>telescope.
> --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> >
> > --- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@> wrote:
> > >
> > > --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> > > >
> > > > What sort of things would the serial port be used for?
> > > >
> > >
> > > I have used mine for communicating with and controlling a
> > > Really you could use it for lots of things that require aserial
> > > connection. My next project is to play around with using itwith a
> > > GPS unit.How
> > >
> > > -Al
> > >
> > I read somewhere that the serial cable is not available from HP.
> > did you overcome this problem? Did the serial cable come withyour
> > telescope? Or is the serial cable available from some othersource or
> > did you build one? Any guidance you can offer is appreciated.Thanks.
> >for
>
> I should have been more clear. Sorry. I used a 48GX serial port
> my telescope. I modified a standard 9 pin cable to work with myI do
> calculator cable. However, as soon as I get a cable for the 50g,
> not foresee any problems.machine!
>
> I for one am happy that they included this capability on the new
>Just to be clear re: serial port of 50g. It is not a true RS232-
> -Al
>
standard device. It's a 3.3V TTL signal (noninverted). There
should be a third-party cable soon if you don't want to make one
yourself.
--Scott
Re: Serial Port
2006-09-23 by x2dydx
> Just to be clear re: serial port of 50g. It is not a true RS232-Hi Scott, I don't mean to beat this subject to death but I assumed that
> standard device. It's a 3.3V TTL signal (noninverted). There
> should be a third-party cable soon if you don't want to make one
> yourself.
>
> --Scott
>
the serial output from the calculator would be RS232. I really
appreciate you giving the heads up that it is not standard RS232
but "3.3V TTL signal (noninverted)," however I don't know the
ramifications of that difference. So I guess the question is, are the
two signals compatable and the interface as simple as building a cable,
or is there some signal incompatabilities that require additional
electronic signal processing (for example an inverter) in order to
interface the calculator to a standard RS232 connection?
Re: Serial Port
2006-09-23 by Scott
--- In 50g@yahoogroups.com, "x2dydx" <x2dydx@...> wrote:
With the 50g, a mark (1) is +3.3V and a space (0) is 0V. For
standard RS232 (going from memory and recalling some specs for the
48GX), a mark is -(3 to 25)V and a space is +(3 to 25)V, with +/-
10V being pretty typical for a typical RS232 charge-pump circuit
(MAX232 chip, etc.) being driven by +5V. What does this mean?
First, it means that the signal has to be inverted and scaled to at
least +/- 5V (space/mark, respectively--notice the inversion). I do
not know what the "fault" tolerance is on the 50g's serial port
(i.e., can it handle +/- 25V?).
For some of the older calculators with serial ports, according to
comp.sys.hp48, there was an interface cable that "stole" some of its
power from the hardware handshaking lines in order to power the
conversion circuitry (MAX232, etc.). WITH THE 50G, ONE OF THE PINS
TAPS DIRECTLY TO THE BATTERY TO PROVIDE +6V TO POWER THE CONVERTER,
if desired. I believe that if the converter is left on the
calculator and draws power it may drain the batteries. I have not
verified if this battery voltage is "switched" when the unit is on--
I wouldn't count on that.
From a programming point of view, since the 50g has a USB port also,
if you want to send data through the serial (not RS232 as indicated)
port, you will need to set system flag -78. In order to use Conn4x,
be sure to clear flag -78. Also, be sure to set the "wire" transfer
option.
HTH,
Scott
>that
> > Just to be clear re: serial port of 50g. It is not a true RS232-
> > standard device. It's a 3.3V TTL signal (noninverted). There
> > should be a third-party cable soon if you don't want to make one
> > yourself.
> >
> > --Scott
> >
>
> Hi Scott, I don't mean to beat this subject to death but I assumed
> the serial output from the calculator would be RS232. I reallythe
> appreciate you giving the heads up that it is not standard RS232
> but "3.3V TTL signal (noninverted)," however I don't know the
> ramifications of that difference. So I guess the question is, are
> two signals compatable and the interface as simple as building acable,
> or is there some signal incompatabilities that require additionalHi,
> electronic signal processing (for example an inverter) in order to
> interface the calculator to a standard RS232 connection?
>
With the 50g, a mark (1) is +3.3V and a space (0) is 0V. For
standard RS232 (going from memory and recalling some specs for the
48GX), a mark is -(3 to 25)V and a space is +(3 to 25)V, with +/-
10V being pretty typical for a typical RS232 charge-pump circuit
(MAX232 chip, etc.) being driven by +5V. What does this mean?
First, it means that the signal has to be inverted and scaled to at
least +/- 5V (space/mark, respectively--notice the inversion). I do
not know what the "fault" tolerance is on the 50g's serial port
(i.e., can it handle +/- 25V?).
For some of the older calculators with serial ports, according to
comp.sys.hp48, there was an interface cable that "stole" some of its
power from the hardware handshaking lines in order to power the
conversion circuitry (MAX232, etc.). WITH THE 50G, ONE OF THE PINS
TAPS DIRECTLY TO THE BATTERY TO PROVIDE +6V TO POWER THE CONVERTER,
if desired. I believe that if the converter is left on the
calculator and draws power it may drain the batteries. I have not
verified if this battery voltage is "switched" when the unit is on--
I wouldn't count on that.
From a programming point of view, since the 50g has a USB port also,
if you want to send data through the serial (not RS232 as indicated)
port, you will need to set system flag -78. In order to use Conn4x,
be sure to clear flag -78. Also, be sure to set the "wire" transfer
option.
HTH,
Scott
Re: Serial Port
2006-09-26 by al.arduengo
--- In 50g@yahoogroups.com, "Scott" <blueelectron@...> wrote:
conversion circuitry. If I recall correctly there were three lines -
tx, rx and gnd. I will look at my 50g on a scope today and try to
get firm info.
-Al
>at
> --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> >
> Hi,
>
> With the 50g, a mark (1) is +3.3V and a space (0) is 0V. For
> standard RS232 (going from memory and recalling some specs for the
> 48GX), a mark is -(3 to 25)V and a space is +(3 to 25)V, with +/-
> 10V being pretty typical for a typical RS232 charge-pump circuit
> (MAX232 chip, etc.) being driven by +5V. What does this mean?
> First, it means that the signal has to be inverted and scaled to
> least +/- 5V (space/mark, respectively--notice the inversion). Ido
> not know what the "fault" tolerance is on the 50g's serial portits
> (i.e., can it handle +/- 25V?).
>
> For some of the older calculators with serial ports, according to
> comp.sys.hp48, there was an interface cable that "stole" some of
> power from the hardware handshaking lines in order to power thePINS
> conversion circuitry (MAX232, etc.). WITH THE 50G, ONE OF THE
> TAPS DIRECTLY TO THE BATTERY TO PROVIDE +6V TO POWER THECONVERTER,
> if desired. I believe that if the converter is left on the-
> calculator and draws power it may drain the batteries. I have not
> verified if this battery voltage is "switched" when the unit is on-
> I wouldn't count on that.also,
>
> From a programming point of view, since the 50g has a USB port
> if you want to send data through the serial (not RS232 asindicated)
> port, you will need to set system flag -78. In order to useConn4x,
> be sure to clear flag -78. Also, be sure to set the "wire"transfer
> option.The cable I built years ago for the 48 series did not have any
>
> HTH,
> Scott
>
conversion circuitry. If I recall correctly there were three lines -
tx, rx and gnd. I will look at my 50g on a scope today and try to
get firm info.
-Al
Re: Serial Port
2006-09-27 by Scott
--- In 50g@yahoogroups.com, "al.arduengo" <al.arduengo@...> wrote:
built-in.
--Scott
>the
> --- In 50g@yahoogroups.com, "Scott" <blueelectron@> wrote:
> >
> > --- In 50g@yahoogroups.com, "x2dydx" <x2dydx@> wrote:
> > >
> > Hi,
> >
> > With the 50g, a mark (1) is +3.3V and a space (0) is 0V. For
> > standard RS232 (going from memory and recalling some specs for
> > 48GX), a mark is -(3 to 25)V and a space is +(3 to 25)V, with +/-I
> > 10V being pretty typical for a typical RS232 charge-pump circuit
> > (MAX232 chip, etc.) being driven by +5V. What does this mean?
> > First, it means that the signal has to be inverted and scaled to
> at
> > least +/- 5V (space/mark, respectively--notice the inversion).
> doto
> > not know what the "fault" tolerance is on the 50g's serial port
> > (i.e., can it handle +/- 25V?).
> >
> > For some of the older calculators with serial ports, according
> > comp.sys.hp48, there was an interface cable that "stole" some ofnot
> its
> > power from the hardware handshaking lines in order to power the
> > conversion circuitry (MAX232, etc.). WITH THE 50G, ONE OF THE
> PINS
> > TAPS DIRECTLY TO THE BATTERY TO PROVIDE +6V TO POWER THE
> CONVERTER,
> > if desired. I believe that if the converter is left on the
> > calculator and draws power it may drain the batteries. I have
> > verified if this battery voltage is "switched" when the unit ison-
> -lines -
> > I wouldn't count on that.
> >
> > From a programming point of view, since the 50g has a USB port
> also,
> > if you want to send data through the serial (not RS232 as
> indicated)
> > port, you will need to set system flag -78. In order to use
> Conn4x,
> > be sure to clear flag -78. Also, be sure to set the "wire"
> transfer
> > option.
> >
> > HTH,
> > Scott
> >
>
> The cable I built years ago for the 48 series did not have any
> conversion circuitry. If I recall correctly there were three
> tx, rx and gnd. I will look at my 50g on a scope today and tryto
> get firm info.The 48GX has a true-ish RS232 port, wich inversion/level conversion
>
> -Al
>
built-in.
--Scott
Serial Port
2007-02-13 by Art Kennedy
Does anybody have any news about the serial port
(non-USB) on the 50g?
Is there a cable yet? Any way to hook it to a
oldstyle PC Serial Port?
Re: [50g] Serial Port
2007-02-14 by Don Hart
Isn't it the same as for the 49g (not +)? If it is,
then the HP part # is F1633-66050
I believe that includes the cable, DB9 adaptor, & hp48
adaptor.
--- Art Kennedy <artkennedy@...> wrote:
Yahoo! Music Unlimited
Access over 1 million songs.
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then the HP part # is F1633-66050
I believe that includes the cable, DB9 adaptor, & hp48
adaptor.
--- Art Kennedy <artkennedy@...> wrote:
> Does anybody have any news about the serial port____________________________________________________________________________________
> (non-USB) on the 50g?
>
> Is there a cable yet? Any way to hook it to a
> oldstyle PC Serial Port?
>
>
Yahoo! Music Unlimited
Access over 1 million songs.
http://music.yahoo.com/unlimited
Re: [50g] Serial Port
2007-02-14 by Art Kennedy
Thanks Don,
No, the connector on the HP50 is
very different and I have the distinct impression that I saw information on the
serial port that indicated that it was not really RS232 compatible. I
mean even less so that previous models. The crazy thing is that 2 months
later I can now find no trace of such information on the web or on my
machine ( I usually save things ) !?
Oh well, guess I'll call 800-888-0262.
----- Original Message -----From: Don HartSent: Tuesday, February 13, 2007 8:12 PMSubject: Re: [50g] Serial PortIsn't it the same as for the 49g (not +)? If it is,
then the HP part # is F1633-66050
I believe that includes the cable, DB9 adaptor, & hp48
adaptor.
--- Art Kennedy <artkennedy@clearwir e.net> wrote:
> Does anybody have any news about the serial port
> (non-USB) on the 50g?
>
> Is there a cable yet? Any way to hook it to a
> oldstyle PC Serial Port?
>
>
____________ _________ _________ _________ _________ _________ _
Yahoo! Music Unlimited
Access over 1 million songs.
http://music. yahoo.com/ unlimited
Re: [50g] Serial Port
2007-02-14 by Don Hart
I was just at groups.google.com and in the
comp.sys.hp48 newsgroup I did a searched for.. 50g
serial .. and saw (but didn't read) some discussion
about that. Give that a try
--- Art Kennedy <artkennedy@...> wrote:
TV dinner still cooling?
Check out "Tonight's Picks" on Yahoo! TV.
http://tv.yahoo.com/
comp.sys.hp48 newsgroup I did a searched for.. 50g
serial .. and saw (but didn't read) some discussion
about that. Give that a try
--- Art Kennedy <artkennedy@...> wrote:
> Thanks Don,__________________________________________________________
>
> No, the connector on the HP50 is very different
> and I have the distinct impression that I saw
> information on the serial port that indicated that
> it was not really RS232 compatible. I mean even
> less so that previous models. The crazy thing is
> that 2 months later I can now find no trace of such
> information on the web or on my machine ( I usually
> save things ) !?
>
> Oh well, guess I'll call 800-888-0262.
>
>
> ----- Original Message -----
> From: Don Hart
> To: 50g@yahoogroups.com
> Sent: Tuesday, February 13, 2007 8:12 PM
> Subject: Re: [50g] Serial Port
>
>
> Isn't it the same as for the 49g (not +)? If it
> is,
> then the HP part # is F1633-66050
>
> I believe that includes the cable, DB9 adaptor, &
> hp48
> adaptor.
>
> --- Art Kennedy <artkennedy@...> wrote:
>
> > Does anybody have any news about the serial port
> > (non-USB) on the 50g?
> >
> > Is there a cable yet? Any way to hook it to a
> > oldstyle PC Serial Port?
> >
> >
>
>
>
> Yahoo! Music Unlimited____________________________________________________________________________________
> Access over 1 million songs.
> http://music.yahoo.com/unlimited
>
>
>
TV dinner still cooling?
Check out "Tonight's Picks" on Yahoo! TV.
http://tv.yahoo.com/
Re: Serial Port
2007-02-15 by Giancarlo
Hi there.
You may want to consider the following threads on comp.sys.hp48:
http://groups.google.com/group/comp.sys.hp48/browse_frm/thread/96d71a9de
d6348ec/347f113ccb896a9c?lnk=gst&q=50G+serial+cable&rnum=3#
http://groups.google.com/group/comp.sys.hp48/browse_frm/thread/ecfb14a98
192024f/b48bfd8d2299bfc2?
lnk=gst&q=50G+serial+cable&rnum=5#b48bfd8d2299bfc2
Hope this helps.
Best regards.
Giancarlo
You may want to consider the following threads on comp.sys.hp48:
http://groups.google.com/group/comp.sys.hp48/browse_frm/thread/96d71a9de
d6348ec/347f113ccb896a9c?lnk=gst&q=50G+serial+cable&rnum=3#
http://groups.google.com/group/comp.sys.hp48/browse_frm/thread/ecfb14a98
192024f/b48bfd8d2299bfc2?
lnk=gst&q=50G+serial+cable&rnum=5#b48bfd8d2299bfc2
Hope this helps.
Best regards.
Giancarlo
Re: [50g] Re: Serial Port
2007-02-15 by Art Kennedy
Thanks, Giancarlo. I wonder why I couldn't
get Google hits on it. I also wonder how I forgot about comp.sys.hp48
!? Not as young as I once was . . .
----- Original Message -----From: GiancarloSent: Wednesday, February 14, 2007 11:59 PMSubject: [50g] Re: Serial PortHi there.
You may want to consider the following threads on comp.sys.hp48:
http://groups. google.com/ group/comp. sys.hp48/ browse_frm/ thread/96d71a9de
d6348ec/347f113ccb8 96a9c?lnk= gst&q=50G+ serial+cable& rnum=3#
http://groups. google.com/ group/comp. sys.hp48/ browse_frm/ thread/ecfb14a98
192024f/b48bfd8d229 9bfc2?
lnk=gst&q=50G+ serial+cable& rnum=5#b48bfd8d2 299bfc2
Hope this helps.
Best regards.
Giancarlo
Re: [50g] Serial Port
2007-02-15 by Art Kennedy
Thanks, Don. I wonder why I couldn't get
Google hits on it. I also wonder how I forgot about comp.sys.hp48 !?
Not as young as I once was . . .
- Art Kennedy
----- Original Message -----From: Don HartSent: Wednesday, February 14, 2007 12:40 AMSubject: Re: [50g] Serial PortI was just at groups.google. com and in the
comp.sys.hp48 newsgroup I did a searched for.. 50g
serial .. and saw (but didn't read) some discussion
about that. Give that a try
--- Art Kennedy <artkennedy@clearwir e.net> wrote:
> Thanks Don,
>
> No, the connector on the HP50 is very different
> and I have the distinct impression that I saw
> information on the serial port that indicated that
> it was not really RS232 compatible. I mean even
> less so that previous models. The crazy thing is
> that 2 months later I can now find no trace of such
> information on the web or on my machine ( I usually
> save things ) !?
>
> Oh well, guess I'll call 800-888-0262.
>
>
> ----- Original Message -----
> From: Don Hart
> To: 50g@yahoogroups. com
> Sent: Tuesday, February 13, 2007 8:12 PM
> Subject: Re: [50g] Serial Port
>
>
> Isn't it the same as for the 49g (not +)? If it
> is,
> then the HP part # is F1633-66050
>
> I believe that includes the cable, DB9 adaptor, &
> hp48
> adaptor.
>
> --- Art Kennedy <artkennedy@clearwir e.net> wrote:
>
> > Does anybody have any news about the serial port
> > (non-USB) on the 50g?
> >
> > Is there a cable yet? Any way to hook it to a
> > oldstyle PC Serial Port?
> >
> >
>
>
>
____________ _________ _________ _________ _________ _________ _
> Yahoo! Music Unlimited
> Access over 1 million songs.
> http://music. yahoo.com/ unlimited
>
>
>
____________ _________ _________ _________ _________ _________ _
TV dinner still cooling?
Check out "Tonight's Picks" on Yahoo! TV.
http://tv.yahoo. com/