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- Visor & Deluxe (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=1)
-- Springboard slot-what's the point? (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=1308)


Posted by TOYboy on 04-09-2000 01:47 PM:

Question

I am just curious: What makes the springboard slot better than the hotsync port on the Visor and Palm. Convenience? High Bandwidth? I cannot believe it is just expandability. You can connect many devices to a Palm through the hotsync port. Flash memory cards, modems, GSP recievers are all available.

I would like to what the advantage is of the springboard?


Posted by MarkEagle on 04-09-2000 02:21 PM:

Post

Well, for starters, the Springboard is connected to the CPU bus while the HotSync connector on the Palm is a serial port. Thus, I suppose that would mean higher bandwidth. One of the biggest advantages is that Springboard memory becomes available to the processor (ie, the Handspring 8mb FlashModule). I don't think this can happen through a serial connection.

The potential for a Springboard is almost limitless. A module can enhance and add functionality to the Visor or it can be a stand-alone device.

Check out some of the modules that have been announced and I think you'll be amazed at what can be done.

------------------
MarkEagle - Ice is nice!


Posted by Gameboy70 on 04-09-2000 07:12 PM:

Post

The main advantage of the Springboard is that the modules insert inside of the Visor's body, so very little is added to the form factor compared to the Palm's snap-on accessories. You might want to take a look at the Eyemodule sprinboard and compare it to the snap-on digicam that Kodak makes for the Palm. I disagree with the general consensus that it's the Springboard is the Second Coming, but it's definitely a hell of a convenience. Look at the Gameboy's success and you'll get an idea of just how far you can go with the concept.


Posted by matty on 04-10-2000 12:04 AM:

Talking

the springboard slot also allows for two add-ons to be used at once, i.e.: a modem and keyboard - great for those of us on the road w/o a laptop.

now i just need my stowaway...

matty


Posted by waterboy on 04-10-2000 12:07 AM:

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But beware the springboards are slow to come to market and those nice serial devices that work with the palm now do work..They will not work sith eht visor as it has no true serial port and cannot comunicate with them. especially the GPS!!! The handyGPS springboard that was suppose to be out 4 months ago and is again delayed only uses one street mapping software(a good one) but will not allow the other softwares out there for GPS tracking to work. My advice is buy a palm if you want to hook stuff up now.


Posted by TOYboy on 04-10-2000 11:41 PM:

Post

Developers are hesistant to develop springboards until they are certain of the viability of the platform. Maybe Palm should license the springboard technology/patents from Handspring.

That would be interesting.


Posted by MarkEagle on 04-11-2000 01:47 AM:

Post

Handspring's S-1 filing for their upcoming IPO did mention that they were going to license the Springboard technology. If someone else (ie Palm) were to release another PDA with it, I'm sure the developers would be releasing modules faster than we could buy them.

------------------
MarkEagle - Ice is nice!


Posted by GQVisor on 04-14-2000 01:47 AM:

Thumbs up

Another, I think big, advantage of the Springboard module, over add-ons via the Pilot's serial/cradle port is "plug & Play." You pop the module in and it works right away. No drivers or configuring needed. And of course, greater access speed and less overall baulk.


Posted by Q-Bert on 04-14-2000 02:41 AM:

Post

Once again, everyone is stuidously avoiding mention of the TRG-Pro, whose compact flash slot would seem a more standard direction for the Palm community to take. This would allow potential usage of accessories for any device which uses compact flash, somewhat akin to the USB standard in computing. I am not exactly sure why Handspring felt the need to use a proprietary connection.


Posted by yucca on 04-14-2000 10:33 AM:

Question

The only difference that I am aware of is that SMs are plug & play, and CF cards are not (can not?). For a consumer device, the plug & play ability with the SM is significant.

I'd too would like to know, from a hardware point of view, if there there are any advantages (performance, power consumption, etc.) to either standard.

[This message has been edited by yucca (edited 04-14-2000).]


Posted by Winchell on 04-14-2000 02:10 PM:

Cool

A minor point, but...

IIRC the CF card standard specifies that the card's form factor has to be roughly like a thick credit card.

The Springboard standard has no such restriction. The springboard unit can bulge out all over the place as long as it can insert its plug into the Visor.

This gives an advantage as the Springboard developers are not quite as constrained sizewise.


Posted by Gameboy70 on 04-14-2000 06:08 PM:

Post

It may not be so much a question of studiously avoid mentioning the TRG-Pro as being uninformed about it capabilities.

I have yet to hear about GPS, pager, and MP3 CF modules that more or less maintain the PDAs form factor. Most of what I've seen are memory modules for features that are to be built into the PDA itself, like WinCE units with MP3 and voice recording. One of the reasons that the Palm doesn't need 32 mb of RAM is that it's not storing voice recordings, MP3s, etc. Most Springboards store the data they create within themselves, not on the PDA.

Winchell echoes what Jeff Hawkins had to say about designing the Springboard slot as opposed to going with CF. The Springboard slot's larger dimensions are more accomodating for self-contained modules.


Posted by mavidal on 04-14-2000 08:05 PM:

Post

Waterboy:

You can connect a GPS to the Handspring. The Visor support Serial port syncing so a serial connection to a GPS would work.

As for Navincom being late, so have many other software products and hardware been late. That is no excuse to be critical.



------------------
Mike Vidal
Ice Owner
Corvette Enthusiast
Racecar Spelled backwards is Racecar!


Posted by argent on 04-15-2000 12:53 AM:

Post

Bandwidth, Bandwidth, Bandwidth

The serial port on the classic Palms has a bandwidth of 115k bits per second.

The compact flash port on the TRG Pro has a bandwidth of at most 8 megabytes a second.

The springboard port has a bandwidth of 32 megabytes a second, just like internal memory does.

Data access from Compact Flash is 1/4 the speed of main memory. Any memory-intensive task is going to run 4 times slower than it will out of internal memory, and the Dragonball is none to fast to begin with.

CF is like an external data port. Your CF card is more like a Zip drive than a hard drive. The serial port on a Palm is like a floppy.

Plug and Play

The other big bonus. You can plug your springboard in and it's automatically ready to go. You pull it out, even while a program's running, and it's gone... the program will even (at least on the ones I've tried) automatically rescan memory and present a shorter list of databases!

USB versus Serial

I think they screwed up here. They should have put two more pins on the connector so that you could plug in an adapter and get 100% compatibility with the Palm. Still, I'll be able to dial in from my GoType, and no Palm owner can do the same.


Posted by zr0e on 04-22-2000 07:00 AM:

Post

quote:
Originally posted by argent:
Bandwidth, Bandwidth, Bandwidth

The serial port on the classic Palms has a bandwidth of 115k bits per second.

The compact flash port on the TRG Pro has a bandwidth of at most 8 megabytes a second.

The springboard port has a bandwidth of 32 megabytes a second, just like internal memory does.

Data access from Compact Flash is 1/4 the speed of main memory. Any memory-intensive task is going to run 4 times slower than it will out of internal memory, and the Dragonball is none to fast to begin with.

CF is like an external data port. Your CF card is more like a Zip drive than a hard drive. The serial port on a Palm is like a floppy.

Plug and Play

The other big bonus. You can plug your springboard in and it's automatically ready to go. You pull it out, even while a program's running, and it's gone... the program will even (at least on the ones I've tried) automatically rescan memory and present a shorter list of databases!

USB versus Serial

I think they screwed up here. They should have put two more pins on the connector so that you could plug in an adapter and get 100% compatibility with the Palm. Still, I'll be able to dial in from my GoType, and no Palm owner can do the same.



ok Argent i am gonna cut and paste something that i hope will help you from http://www.pencomputing.com/palm/Reviews/visor1.html

iMac users especially will be pleased to hear that not only is Mac software shipped on the same CD as the Windows software, but the Visor's cradle is USB. This offers higher speed HotSyncing, 1.5 megabits per second versus a maximum of 115 kilobits per second for a Palm connected to a serial port. Those lacking a USB port can buy the serial port cradle from the Handspring website. The cradle, of course, is not compatible with old cradles, nor with the Palm modem or its peripherals. At first I thought they were just being difficult. But then I noticed there appeared to be fewer gold contacts on the bottom of the Visor: a quick count revealed that there are only eight contacts, compared to a Palm unit's ten. The port on the Visor itself is indeed a USB port, not the same old serial port made to work with a USB cradle. Finally I get it. Of course, it would have to be USB through and through to get the speed improvement.




------------------
Can your Palm<sup>TM do this? i didn't think so


Posted by drews85 on 05-02-2000 07:11 PM:

Red face

inside.
ice is not nice

[This message has been edited by drews85 (edited 05-02-2000).]


Posted by argent on 05-05-2000 02:57 AM:

Post

quote:
Originally posted by zr0e:
ok Argent i am gonna cut and paste something that i hope will help you...


First of all, the message is incorrect. The USB port on the Visor is not a replacement for the serial port. The Visor has a two-wire TTL-level serial port as well as the 2-wire TTL-level USB port. The serial port and the USB port are separate lines.

The Palm has a 4-wire serial port. The Palm and the Visor serial interfaces are both driven by the same pins on the DragonBall EZ chip, so the extra 2 wires are available inside the Visor. They're not brought out to the connector.

The cradle fakes things out by hardwiring the flow control lines. That's good enough for hotsync...

But it won't help me plug my Visor into the serial port on a Cisco router to configure it, like I could a Palm. It won't let me use the Visor as a hand-held programmer for various bits of control system equipment we support. I've talked work into spending the $150 for the diagnostic card, which should resolve that, but handspring could have added less than a penny's worth of plastic and gold-plated steel and made it unnecessary...

[This message has been edited by argent (edited 05-04-2000).]


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