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'[OT] USB serial ports'
2005\07\30@092418 by shb7

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Hi all,

I plan on buying a new laptop soon and I've noticed that they almost never have RS-232 serial ports anymore (it does not surprise me). I know the topic of USB-based RS-232 ports has been discussed here quite some time ago. I am mainly interested in using one to run my Warp 13 programmer. Anyone have any idea how well that would work? It would probably be with Win XP. Alternatively, if anyone can recommend a USB-based PIC programmer, that might be a better option.

Thanks,

Sean

2005\07\30@094334 by Wouter van Ooijen

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> Alternatively, if anyone can recommend a
> USB-based PIC programmer, that might be a better option.

ICD2

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2005\07\30@104237 by Anand Dhuru

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----- Original Message -----
From: "Wouter van Ooijen" <spam_OUTwouterTakeThisOuTspamvoti.nl>
To: "'Microcontroller discussion list - Public.'" <.....piclistKILLspamspam@spam@mit.edu>
Sent: Saturday, July 30, 2005 7:13 PM
Subject: RE: [OT] USB serial ports


>> Alternatively, if anyone can recommend a
>> USB-based PIC programmer, that might be a better option.
>
> ICD2
>
> Wouter van Ooijen

Or perhaps http://miarroba.com/foros/ver.php?foroid=59905&temaid=3558103 ?

Regards,

Anand Dhuru

2005\07\30@115957 by Wouter van Ooijen

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> Or perhaps
> http://miarroba.com/foros/ver.php?foroid=59905> &temaid=3558103
> ?

I can't read that, it seems to be about bot starwars and ICSP?

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2005\07\30@122034 by Herbert Graf

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On Sat, 2005-07-30 at 13:23 +0000, shb7spamKILLspamnetzero.net wrote:
> Hi all,
>
> I plan on buying a new laptop soon and I've noticed that they almost never have RS-232 serial ports anymore (it does not surprise me). I know the topic of USB-based RS-232 ports has been discussed here quite some time ago. I am mainly interested in using one to run my Warp 13 programmer. Anyone have any idea how well that would work? It would probably be with Win XP. Alternatively, if anyone can recommend a USB-based PIC programmer, that might be a better option.

While rare, they still are out there, so I wouldn't give up just yet.

The Dell 600m I got has both a serial and parallel port, one of the main
reasons I went for that one was BECAUSE it had a serial port (didn't
want to carry around a USB serial port adapter all the time for when I
use GPS). The amazing battery life, lighter weight and very high
resolution screen (for it's size) were the other draws.

TTYL


-----------------------------
Herbert's PIC Stuff:
http://repatch.dyndns.org:8383/pic_stuff/

2005\07\30@162604 by Hector Martin

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Wouter van Ooijen wrote:
>> Or perhaps
>> http://miarroba.com/foros/ver.php?foroid=59905> &temaid=3558103
>> ?
>
> I can't read that, it seems to be about bot starwars and ICSP?
>

It is a USB based PIC programmer, based around a PIC18F2550. They
presumably provide the whole design, windows drivers, files to program
the PIC, etc. in that zipfile.

--
Hector Martin (.....hectorKILLspamspam.....marcansoft.com)
Public Key: http://www.marcansoft.com/hector.asc

2005\07\31@071513 by Howard Winter

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On Sat, 30 Jul 2005 17:59:57 +0200, Wouter van Ooijen
wrote:

> I can't read that

Then there's no hope for us English-only speakers!  :-)

It looks somewhat like Spanish, but somehow different.  
I wonder if it's Portugese?

> it seems to be about bot starwars and ICSP?

Then you got more from it than I did!  

Cheers,


Howard Winter
St.Albans, England


2005\07\31@093747 by Hector Martin

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Howard Winter wrote:
> On Sat, 30 Jul 2005 17:59:57 +0200, Wouter van Ooijen
> wrote:
>
>> I can't read that
>
> Then there's no hope for us English-only speakers!  :-)
>
> It looks somewhat like Spanish, but somehow different.  
> I wonder if it's Portugese?
>

Spanish. :P

As I said, it is a design, code, etc for a USB PIC programmer (based
itself around a PIC). If you need I could translate it, although the
post doesn't really say much. Everything is in the zipfile I believe.
--
Hector Martin (EraseMEhectorspam_OUTspamTakeThisOuTmarcansoft.com)
Public Key: http://www.marcansoft.com/hector.asc


'[OT] USB serial ports'
2005\08\01@023743 by Vitaliy
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> I plan on buying a new laptop soon and I've noticed that they almost never
> have RS-232 serial ports anymore (it does not surprise me). I know the
> topic of USB-based RS-232 ports has been discussed here quite some time
> ago. I am mainly interested in using one to run my Warp 13 programmer.
> Anyone have any idea how well that would work? It would probably be with
> Win XP. Alternatively, if anyone can recommend a USB-based PIC programmer,
> that might be a better option.
>
> Thanks,
>
> Sean

Sean,

I have some experience using USB-Serial converters, although I haven't used
one with a Warp 13. They have two issues:

1. Some converter designers cut corners and do not include an RS232 level
shifter. As a result, their voltage swing is only 0-5V instead of the
usual -10/+10V.
2. AFAIK, all virtual ports have a significant (measured in milliseconds)
and somewhat random delay associated with them.

Our company sells a USB-Serial converter that doesn't have the problem
described in #1:

http://www.scantool.net/products/usb_serial.htm

The reason I mention it is because our main product line requires full
compliance with RS232, and we found that for example most Belkin converters
are not compatible.

You can also buy the converter from Majestron:

http://www.majestron.com/sales/index.htm

By the way, most Dell notebooks have a built-in serial port. It was a big
deal for me when I was shopping for a laptop last summer (I have a Dell
Inspiron).

Best regards,

Vitaliy

2005\08\01@030251 by Jim Robertson

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>
>
>Hi all,
>
>I plan on buying a new laptop soon and I've noticed that they almost never
>have RS-232 serial ports anymore (it does not surprise me). I know the
>topic of USB-based RS-232 ports has been discussed here quite some time
>ago. I am mainly interested in using one to run my Warp 13 programmer.
>Anyone have any idea how well that would work? It would probably be with
>Win XP. Alternatively, if anyone can recommend a USB-based PIC programmer,
>that might be a better option.
>
>Thanks,
>
>Sean

For ~$25 get an I/O gear convertor. By all reports (and my testing) these
work well with the WARP-13. These are based on the prolific chip set and
are a better option than the less efficient FTDI chip. Still, the FTDI chip
does work ok  with the WARP-13 but some of the bugs in the VCP driver can
be very annoying.

Regards,

Jim Robertson
NEWFOUND ELECTRONICS




2005\08\01@042939 by Alan B. Pearce

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>By the way, most Dell notebooks have a built-in serial port. It was
>a big deal for me when I was shopping for a laptop last summer
>(I have a Dell Inspiron).

Not now they don't. They are steadily working towards "legacy free" and
having only USB ports. The number of laptop models with serial and parallel
ports is steadily dropping.

2005\08\01@044856 by Tony Smith

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>>By the way, most Dell notebooks have a built-in serial port. It was
>>a big deal for me when I was shopping for a laptop last summer
>>(I have a Dell Inspiron).
>
> Not now they don't. They are steadily working towards "legacy free" and
> having only USB ports. The number of laptop models with serial and
> parallel
> ports is steadily dropping.


Dell are weird.  I was using a Dell laptop the other day (Lattitude 600)
that had parallel, serial, USB, VGA but no PS2.  I had to buy a PS2 to USB
adapter so I could plug a decent keyboard in.  And I thought parallel got
dropped first.  Must be all those printers...

Tony

2005\08\01@064157 by William Chops Westfield

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On Aug 1, 2005, at 1:49 AM, Tony Smith wrote:

> Dell are weird.  I was using a Dell laptop the other day (Lattitude
> 600)
> that had parallel, serial, USB, VGA but no PS2.

That's the same as my IBM X30.  Even more surprising is that the
"expansion/dock thingy" (which has the CD/DVD drive) adds a PS2 mouse
connector but no PS2 keyboard...

BillW

2005\08\01@104807 by Howard Winter

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Bill,

On Mon, 1 Aug 2005 03:41:56 -0700, William "Chops" Westfield wrote:

>...<
> That's the same as my IBM X30.  Even more surprising is that the
> "expansion/dock thingy" (which has the CD/DVD drive) adds a PS2 mouse
> connector but no PS2 keyboard...

Actually, assuming it's the same as every other ThinkPad I've encountered, that's a combined function port -
you can plug a mouse straight in, but if you get a short adaptor-cable (which has two sockets) you can plug in
a keyboard too.  I don't know how it works but you always need the adaptor if you are plugging in a keyboard,
with or without a mouse.  

The official IBM adaptor is black, has a single block with the two sockets in it, and is ridiculously
expensive.  You can also get a no-name version that's a Y-shaped cable with a socket at each branch, in grey,
from computer fairs for very little money.  (eBay may also be an option).

Having looked at the "IBM" one I have here, I see it's labelled "Belkin #F3G117-01" so perhaps you can get
them directly from Belkin as well.

Cheers,


Howard Winter
St.Albans, England


2005\08\04@181230 by shb7

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Hi all,

Thanks for your help with this question. I was planning on getting a Dell anyway so I will take a look at the 600m. If not, I will go with the adaptor that Jim recommended.

Sean


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