Re: globalsat bu-353 usb gps using serial or ps2 port


Dennis Pogson wrote:
> Spacey Spade wrote:
> > Because I believe my P200 laptop can't handle the USB gps and playing
> > mp3s at the same time (without skips in mp3 playback), I tried hooking
> > up the BU-353 gps via the ps-2 port with one of those adapters you get
> > for the mouse. The gps gets power and is blinking, having locked it's
> > coordinate position (in my bedroom!). However, Deluo Routis 2004 does
> > not "auto detect" the gps, saying there is no gps hooked to the
> > computer. Is there any way to make this work?
> >
> > If anyone has seen a USB -> Serial -> Serial Port adapter, I can try
> > that in addition to my current USB -> PS2 -> PS2 Port adapter I have
> > now.
> >
> > TIA,
> >
> > Spacey
> >
> > [For-Soft]
> > Is USB support slow in windows 98?
> > USB mouse vs. PS2 or COM mouse. USB mouse does not work smoothly quite
> > often when CPU is heavily used. PS2 mouse simply works.
> > Reason?
> > PS2 port requires much less CPU time in order to be serviced by the
> > OS. Theory:
> > The USB bus is run by the controller software driver. Any trasmition
> > requires the driver to process it, because the USB bus is designed to
> > be shared by many different devices in the same time. So, it is
> > necesary to manage the USB bus with complicated and time consuming
> > way.
> >
> > PCMCIA is a very interesting system. The PCMCIA card after initiating
> > by the PCMCIA manager software behaves like a hardware component
> > connected directly to the motherboard bus (ISA or PCI depending on the
> > PCMCIA controller type). It is possible to access the PCMCIA card
> > registers using CPU IO ports without any additional PCMCIA drivers.
> > To put it simple PCMCIA driver is necesary only to configure the
> > PCMCIA device. After that, the device works with it's own driver and
> > it is not necesary to use PCMCIA controller software, any more.
> >
> > The point:
> > The multi purpose of the USB bus is the cause of it's weakest point:
> > high CPU demand.
> >
> > The USB is good for very fast computers. But, IO devices like LPT, COM
> > or PS2 are handled faster by the OS.
> > [/For-Soft]
>
> Most of us who own non-serial-port laptops use a USB-serial converter,
> available in large numbers and at varying prices from E-bay. I have never
> seen a GPS connected through a PS2 port, but that ddoes not mean it can't be
> done.

I have seen these converters, but they are for connecting a serial gps
to a USB port. Correct? I want to do the reverse.

.

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