Difference between revisions of "REX"

From Bitchin100 DocGarden
Jump to: navigation, search
(Future Roadmap)
 
(156 intermediate revisions by 9 users not shown)
Line 1: Line 1:
 
[[Image:Red_logo_small.png||center]]<br/>
 
[[Image:Red_logo_small.png||center]]<br/>
  
== What Is REX ==
+
<big> '''REX Products for Model T laptops! '''</big>
  
REX is completely plug and play flash memory upgrade. REX plugs
 
into the Option ROM slot, with no soldering or necessity to open
 
the laptop case.
 
  
REX provides support for up to 8
+
<table border="0">
in-circuit selectable option roms. That means, you can have 8 different
+
<tr><td>[[Image:REXCPM.PNG]]        </td><td>    All of REX + CP/M support!    ---></td><td>[[REXCPM]]    </td><td>[[Image:rexcpm.jpg]]</td></tr>
software packages on one Option ROM, and select between them without
+
<tr><td></td><td></td><td></td></tr>
physically unplugging anything.
+
<tr><td>[[Image:REXsharp.PNG]]      </td><td>    Next Gen Flash based REX      ---></td><td>[[REXsharp]]  </td><td>[[Image:rexsharp.jpg]]</td></tr>
 +
<tr><td></td><td></td><td></td></tr>
 +
</table>
  
In addition, REX is in-circuit, software
 
reprogrammable. That means you can change, patch, or replace an Option ROM image
 
without any special hardware or physically unplugging REX.
 
  
[[Media:Rex_OverviewV4.2.pdf|REX Overview PDF]]
+
<big> How to order  ---></big>[[Ordering Information]]
  
== REX Manager ==
 
  
REX comes pre-programmed with REX Manager software. REX
+
{| class="wikitable"
Manager allows you to pick which of the 8 ROM images is the one
+
|'''Type'''||'''Supported Models'''||'''Memory type'''||'''CP/M?'''||'''Option ROMs?'''||'''RAM backups?'''||'''PCB2MOLEX Carrier?'''||'''Robustness improvements?'''
currently in use.
+
|-
 +
|REXCPM||M100, T102||Static RAM, 2MB or 4MB||YES||YES||YES||YES||YES
 +
|-
 +
|REXsharp||M100, T102, T200, NEC||Flash, 1MB||NO||YES||YES||YES||YES
 +
|-
 +
|}
  
REX Manager operates "behind the scenes" to make sure the currently
 
selected Option ROM image is automatically enabled on every power cycle.
 
This is an impressive trick since REX does not receive power while
 
the laptop is off (unlike the RAM memory circuit).
 
  
Also, REX Manager is able to do this while using a minimal amount of RAM space (about 10 bytes)!
 
 
== Advanced BASIC ROM Replacement Mode (OPTIONAL) ==
 
 
For users with the do-it-yourself spirit, an optional
 
feature of REX can be enabled.
 
 
With a single wire soldered in place, REX permits BASIC ROM replacement!
 
 
This means that you can disable the built-in BASIC/TEXT/TELCOM ROM
 
on your motherboard and replace it with a specific block of REX flash memory.
 
Typically, this will be the same BASIC/TEXT/TELCOM ROM image we know and
 
love, with a few changes. So, you can
 
upgrade your Model T with little tweaks like Y2K, the lomem patch, new
 
character sets, put your name on the main menu, etc.
 
 
== Installing REX Manager - It's Easy ==
 
 
From a cold restart, power cycle the laptop and the simply type
 
<code><pre>CALL 63012</pre></code>
 
 
will install the REX system.
 
 
You should see a program in the Menu called REXMGR.BA.  Running this program will always start the REX Manager software.
 
 
== Additional Utilities ==
 
 
REXUPG.CO is a utility that allows the user to upgrade the internal REX Manager software.
 
 
== Future Roadmap ==
 
  
 +
No longer orderable (from me), and end-of-support:
 +
<table border="0">
 +
<tr><td>[[Image:REXclassic.PNG]]    </td><td>    Classic Flash based REX      ---></td><td>[[REXclassic]]</td></tr>
 +
</table>
  
  
 
[[Category:Model T Hardware]]
 
[[Category:Model T Hardware]]

Latest revision as of 12:35, 10 June 2020

Red logo small.png

REX Products for Model T laptops!


REXCPM.PNG All of REX + CP/M support! --->REXCPM Rexcpm.jpg
REXsharp.PNG Next Gen Flash based REX --->REXsharp Rexsharp.jpg


How to order --->Ordering Information


Type Supported Models Memory type CP/M? Option ROMs? RAM backups? PCB2MOLEX Carrier? Robustness improvements?
REXCPM M100, T102 Static RAM, 2MB or 4MB YES YES YES YES YES
REXsharp M100, T102, T200, NEC Flash, 1MB NO YES YES YES YES


No longer orderable (from me), and end-of-support:

REXclassic.PNG Classic Flash based REX --->REXclassic