Re: Memory Expander

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Re: Memory Expander

Are you sure about that stuff? I just went to the EII page, it said that
the builder is making 92 software, but the person making the 86 software
stopped working on it and there was no mention of ANY 83 software.
I also really don't know how he's going to make an expander for $12,
especially ordering from mouser, a 512K EEPROM alone is $10, and if he's
using SRAM, there is no 512K, but 1M costs $37. I also don't know what
kind of a controller he's getting to fit in that bugdet. I'd be very
interested to see.

        Chris


_____________________________________________________________________
I'm, like, a product, OK, of american, you know, education, all right?
DJ_Ramen@juno.com

On Sun, 8 Mar 1998 18:37:46 -0700 Grant Stockly <gussie@ALASKA.NET>
writes:
>The person that was making the 83 software is doing it.  THe EII has
>512k
>for $12.  The EII also interfaces with modems/Ir/Text LCD/and 3.5 disk
>drive.
>
>>I'm making it as much for fun as business, and why not make some
>>competition for the EII and EII anyway? Also, I thought the person
>>writing 83 software for EII stopped working on it. I don't know how
>much
>>mine are going to cost, but the current estimated cost on mine is
>$35-$40
>>for 32K including labor and stuff. The memory is pluggable and each
>extra
>>32K will be about $5.
>>Mine will be VERY expandable, its based on a Z80 CPU so a serial
>port,
>>sound capabilities, a display maybe even a floppy drive could be
>added,
>>although their usefulness is debatable. Also, a serial modem could be
>>added.
>>I am planning on using SRAM with backup batteries. To expand, the
>SRAM
>>can be unplugged along with a backup battery. I am still considering
>>using FLASH EEPROM because you wouldn't have to worry about backup
>>batteries, of course that would be slow, and have limited life, not
>to
>>mention a likely bulky power supply to give the 12V necessary to
>write to
>>it.
>>
>>        Chris
>>
>>
>>_____________________________________________________________________
>>I'm, like, a product, OK, of american, you know, education, all
>right?
>>DJ_Ramen@juno.com
>>
>>On Sun, 8 Mar 1998 20:27:53 -0500 The Pletchers
>><bpspcp-travelin@WORLDNET.ATT.NET> writes:
>>>Let him make it on his own if he wants I guess.
>>>
>>>At 03:50 PM 3/8/98 -0700, Grant Stockly wrote:
>>>>Why would you make this when the EII is going to be out by the end
>of
>>>the
>>>>week?  The EIII (link menu transfers) will be in 2 weeks...
>>>>
>>>>Grant
>>>>
>>>>>First of all, look around at the kind of hardware other people are
>>>using to
>>>>>make their own expanders. If you cant think of a price on your
>own,
>>>you'll
>>>>>never make a good businessman (or Ferengi). I would really
>recommend
>>>against
>>>>>any kind of ram because it takes power. EEPROM is probably the
>best
>>>way to
>>>>>go. Look at other ideas from other people. Hmm. anythink over 1 or
>>>two megs
>>>>>is too much if you think about it. Use ASM for the transfers
>>>probably. You
>>>>>dont have to, but it sure beats the link menu.
>>>>>
>>>>>At 04:29 AM 3/9/98 -0500, Chris A Brainerd wrote:
>>>>>>Hey,
>>>>>>I've done lots and lots of research into building a memory
>>>expander. I'm
>>>>>>getting ready to build the prototype (witin a week), but I need
>to
>>>know
>>>>>>what people want.
>>>>>>Specificly how much storage do you want and at what price? Also
>>>would you
>>>>>>want to pay extra to send and recieve with the link menu, or have
>>>it be
>>>>>>cheaper and use an assembly program for transfers. If you have
>any
>>>>>>answers to any of these questions please email me.
>>>>>>BTW: any amount of memory is possible from 0 all the way to 1GB,
>>>believe
>>>>>>it or not. Of course a 1GB expander would be ridiculously huge
>and
>>>>>>expensive (the SRAM chips alone would be $36,250), not to mention
>>>>>>pointless.
>>>>>>
>>>>>>I'm only planning on making 83 compatible software, but if
>there's
>>>anyone
>>>>>>out there who wants to work on making it 82, 85 or 86 compatible
>>>email
>>>>>>me.
>>>>>>
>>>>>>Chris
>>>>>>_____________________________________________________________________
>>>>>>I'm, like, a product, OK, of american, you know, education, all
>>>right?
>>>>>>DJ_Ramen@juno.com
>>>>>>
>>>>>>_____________________________________________________________________
>>>>>>You don't need to buy Internet access to use free Internet
>e-mail.
>>>>>>Get completely free e-mail from Juno at http://www.juno.com
>>>>>>Or call Juno at (800) 654-JUNO [654-5866]
>>>>>>
>>>>>__________________________
>>>>>
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>>>__________________________
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>>>-- http://www.jeffb.home.ml.org/
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>>
>>_____________________________________________________________________
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>

_____________________________________________________________________
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