Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Well, a software implementation of USB *does* excist but on a powerfullCan you really slow down a USB port to 9600 baud and then just a USB to 9
pin D connectors and cable to connect from a modern netbook PC to exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose ?
Or the other similar I was looking at has active chipset conversion in theThere are inexpensive adapters, such as the ones made by Plugable. They
will
generally work when you are directly addressing the RS-232 hardware.
Can you really slow down a USB port to 9600 baud and then just a USB to 9
pin D connectors and cable to connect from a modern netbook PC to exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose?
William Sommerwerck <grizzledgeezer@comcast.net> wrote in message
news:k51cjv$kug$1@dont-email.me...
There are inexpensive adapters, such as the ones made by Plugable. They
will
generally work when you are directly addressing the RS-232 hardware.
Or the other similar I was looking at has active chipset conversion in the
adapter, but always seems to refer to fast serial links useage, I've not
seen specifically as low as 9600.
And whether Prolific or FTDI chipsets, seems to be horses for courses, and
reading around this topic a number of people seem to end up with the wrong
horse.
If it was possible to slow down the USB then just wasted some driver
download time if no connection emerges.
The problem is that Prolific (Tiawan) is the second largest manufacturerreading around this topic a number of people seem to end up with the wrong
horse.
No. For a lot of reasons, but for one big one, the USB protocol requiresCan you really slow down a USB port to 9600 baud and then just a USB to 9
pin D connectors and cable to connect from a modern netbook PC to exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose ?
In article <k519pm$2d4$1@dont-email.me>, "N_Cook" <diverse@tcp.co.uk
wrote:
Can you really slow down a USB port to 9600 baud and then just a USB to
9
pin D connectors and cable to connect from a modern netbook PC to
exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose ?
No. For a lot of reasons, but for one big one, the USB protocol requires
a master and a slave (one at each end of the wire) which exchange status
pretty much all the time. The slave cannot send a message until the
master gives permission. Completely unlike a "standard" serial port.
As others have mentioned, the way to do it is with a USB-to-serial
converter -- the not-USB side of those really does behave just like a
serial port.
But be careful: some adapters include RS-232 line drivers and receivers,
and some do not, and many times the specs will be unclear at best.
RS-232 drivers and receivers are inverting devices, so even with 5 volt
signal levels all around (quite common), the inversion means that a port
of one sort cannot talk to a port of the other. I have seen complete
adapter cables, USB at one end, DB-9 at the other, but with the wrong
polarity of signals in the DB-9 so it cannot work with a "standard"
port. If both ends use RS-232 polarity, or what is called "TTL"
polarity, things will probably be fine.
Whatever one you get will probably require a device-specific driver,
though some OSes have some drivers already installed.
Isaac
look at the spec's on your mother board. it's very possible you alreadyisw <isw@witzend.com> wrote in message
news:isw-1AFFEF.22034809102012@[216.168.3.50]...
In article <k519pm$2d4$1@dont-email.me>, "N_Cook" <diverse@tcp.co.uk
wrote:
Can you really slow down a USB port to 9600 baud and then just a USB to
9
pin D connectors and cable to connect from a modern netbook PC to
exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose ?
No. For a lot of reasons, but for one big one, the USB protocol requires
a master and a slave (one at each end of the wire) which exchange status
pretty much all the time. The slave cannot send a message until the
master gives permission. Completely unlike a "standard" serial port.
As others have mentioned, the way to do it is with a USB-to-serial
converter -- the not-USB side of those really does behave just like a
serial port.
But be careful: some adapters include RS-232 line drivers and receivers,
and some do not, and many times the specs will be unclear at best.
RS-232 drivers and receivers are inverting devices, so even with 5 volt
signal levels all around (quite common), the inversion means that a port
of one sort cannot talk to a port of the other. I have seen complete
adapter cables, USB at one end, DB-9 at the other, but with the wrong
polarity of signals in the DB-9 so it cannot work with a "standard"
port. If both ends use RS-232 polarity, or what is called "TTL"
polarity, things will probably be fine.
Whatever one you get will probably require a device-specific driver,
though some OSes have some drivers already installed.
Isaac
Will go for adapter cable supplier that specifically states Windows 7 OS and
slow serial speed options , and try and find the remaining specs you mention
in their blurb
If you have a desk top, you may want to invest in a real RS-232 card or
I have current TIA-232, 422, 423, 485, 530, 561, 562 standards. I useisw <isw@witzend.com> wrote in message
news:isw-1AFFEF.22034809102012@[216.168.3.50]...
In article <k519pm$2d4$1@dont-email.me>, "N_Cook" <diverse@tcp.co.uk
wrote:
Can you really slow down a USB port to 9600 baud and then just a USB to
9
pin D connectors and cable to connect from a modern netbook PC to
exercise
an an ancient bit of kit with some HEX function codes.
Suitable driver for such purpose ?
No. For a lot of reasons, but for one big one, the USB protocol requires
a master and a slave (one at each end of the wire) which exchange status
pretty much all the time. The slave cannot send a message until the
master gives permission. Completely unlike a "standard" serial port.
As others have mentioned, the way to do it is with a USB-to-serial
converter -- the not-USB side of those really does behave just like a
serial port.
But be careful: some adapters include RS-232 line drivers and receivers,
and some do not, and many times the specs will be unclear at best.
RS-232 drivers and receivers are inverting devices, so even with 5 volt
signal levels all around (quite common), the inversion means that a port
of one sort cannot talk to a port of the other. I have seen complete
adapter cables, USB at one end, DB-9 at the other, but with the wrong
polarity of signals in the DB-9 so it cannot work with a "standard"
port. If both ends use RS-232 polarity, or what is called "TTL"
polarity, things will probably be fine.
Whatever one you get will probably require a device-specific driver,
though some OSes have some drivers already installed.
Isaac
Will go for adapter cable supplier that specifically states Windows 7 OS and
slow serial speed options , and try and find the remaining specs you mention
in their blurb
OS hides many details. Userland applications do not see hardware anyThere's another issue that hasn't been addressed.
The RS-232 interface is obsolete. Any device using it is a "legacy" device.
The drivers are 16-bit or 32-bit, because the manufacturers don't care to
spend money to update their products. Just because a Plugable or other major
brand of USB-to-serial adapter can be successfully installed on a 64-bit
system, doesn't mean the driver will work.
These adapters work best when the program was written to directly address
the serial interface hardware, without a driver.
Not with USB to 232 adapters. At the user level it looks the same but the
you can't change .dll to .txt or something , to copy across eitherThis old kit works well with "macros" via Hyperterminal to 25 pin RS-232
and
Win98 but it has to go out on the road so control via a netbook pc would
be
ideal. In the meantime of getting a USB to RS232, tried porting win98
hyperterminal to Windows 7 just to see if it will at least open on that OS
but bugger me 7 OS/ Explorer hides DLL files and cannot copy/paste the
hyperterminal .dll from thumbstick
Then explain why I couldn't get any of the three devices (a Wacom graphicsThe RS-232 interface is obsolete. Any device using it is a "legacy"
device.
The drivers are 16-bit or 32-bit, because the manufacturers don't care to
spend money to update their products. Just because a Plugable or other
major brand of USB-to-serial adapter can be successfully installed on a
64-bit system, doesn't mean the driver will work.
T hese adapters work best when the program was written to directly
address the serial interface hardware, without a driver.
Not with USB to 232 adapters. At the user level it looks the same but the
OS hides many details. User and applications do not see hardware any
more, just an abstraction (if you are very lucky, a virtualization) of it.
Industrial ISA-based computers are a different case.
Anyone any idea where there is a live download site, ie not dead links/
google adword junksites, to this hyperterminal version?
htpe63.exe
Anyone any idea where there is a live download site, ie not dead links/
google adword junksites, to this hyperterminal version?
htpe63.exe
/does-windows-7-have-hyperterminal-or-an-equivalent/8ca422a1-ca95-4510-87ca-N_Cook wrote:
Anyone any idea where there is a live download site, ie not dead links/
google adword junksites, to this hyperterminal version?
htpe63.exe
http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs