Bitchin100 DocGarden - User contributions [en]

REX2 schematic

2010-05-04T17:57:48Z

209.195.115.75: New page: Image:schematic_REX2.png

[[Image:schematic_REX2.png]]

MTCPM

2010-05-04T17:57:25Z

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Mtcpm ( Model T CP/M ) is a project to create a working version of CP/M on the Model T.

If you want to help out join the [http://lists.bitchin100.com/listinfo.cgi/mtcpm-bitchin100.com Mtcpm mailing list]

Subversion source code [http://svn.bitchin100.com/mtcpm repository]

To download:
<code><pre>
svn co http://svn.bitchin100.com/mtcpm
</pre></code>
Ask on the mailing list if you need commit (check-in) privileges

{| border="1"
|+ Goals and Status
! Project !! Sub project !! Status !! Comments
|-
| Main system || BIOS || bgcolor="yellow" | Underway || ConI/O done
|-
|
| CCP || bgcolor="yellow" | Underway ||
|-
|
| BDOS || bgcolor="yellow" | Underway || Some functions
|-
|
| Filesystems || bgcolor="yellow" | Underway || Hardware required
|-
| Software || Text Editor || bgcolor="red" | Unknown
|-
|
| ASM || bgcolor="red" | Unknown
|}

== CP/M Resources ==

[http://www.retroarchive.org/cpm Retroarchive] Archived CP/M binaries and docs

[http://www.cpm.z80.de The Unofficial CP/M Page]

[http://www.seasip.demon.co.uk/Cpm CP/M Main Page]

[[MTCPM Project HOWTOs]]

== REX2 Information ==

[[REX2 Memory, CP/M Usage, and Startup of CP/M from REX Manager]]

[[REX2 Photos]]

[[REX2 Photos - M100 variant with adapter card]]

[[REX2 Photo - installed in a T102]]

[[REX2 Photo - installed in an M100]]

[[REX2 installation instructions]]

[[REX2 schematic]]

[[REX2 layout]]

[[Category:mtcpm]]

[[Category:Model T Software]]

REX2

2010-05-04T04:03:04Z

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Please see MTCPM.
[[Category:Model T Hardware]]

Model T DocGarden

2010-05-04T04:02:06Z

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These pages are devoted to the Model T:

TRS-80 Model 100, Tandy Model 102, KC-85, NEC 8201A, NEC 8300, Olivetti M10, Tandy Model 200, and the WP-2

== Community ==

The community gathers at [[Club 100|Club100.org]]

== Classic Article Repubs ==

We hope to republish one or more articles from the Golden Era of the Model T every month:

<DPL>
category=Model 100 Classics
</DPL>

== One-Liners ==

This is a collection of Microsoft BASIC programs that
* Do something interesting or useful
* With only a single line of code

One-liners are bite-sized computer programs on a human scale. You are encouraged to type them in manually (by hand) and study their operation.

[[Model 100/102 Compatible One-Liners]]

== File-Transfer and Storage ==

We still use Model Ts today, so file transfer to/from desktop and modern laptops is an important issue. There are multiple alternatives, from simple text file transfers using TEXT, TELCOM, or BASIC, up to dedicated file transfer protocol client and servers.

[[Model T File Transfer]]

== Model T Developer Reference ==

Articles on Model T programming topics

<DPL>
category=Model T Developer Reference
columns=3
</DPL>

== Model T Software ==

<DPL>
category=Model T Software
</DPL>

== Model T Hardware Hacks and Troubleshooting ==
<DPL>
category=Model T Hardware Hacking
</DPL>

== Model T Hardware Projects ==

<DPL>
category=Model T Hardware
columns=3
</DPL>

[[Remem]] is the ultimate Model T memory upgrade

[[REX]] is a flash OptROM emulator/switcher

[[NADSBox]] is a stand-alone TPDD emulation device that uses SD cards

[[Mikrokolor]] Is a Color Graphics interface for the Model 100. Allows for 40x80 character graphics/text

[[MTHD]] Is a how to add a Harddrive to your Model T

== Other Topics ==

== Model T Links ==

[http://club100.org Rick Hanson's Club 100]

[http://www.istop.com/%7Esadolph/remem_home.html Steve Adolph's Remem Site]

[http://sliderule.mraiow.com/wiki/Portable_Computer_Index#T Chris Osburn's Calculating Instruments]

[http://kenpettit.com/projects.html Ken Pettit's Model T Projects]

REX2 installation instructions

2010-05-01T12:20:36Z

209.195.115.75: New page: REX2 installs, for the most part, identically to a REX. Please read the REX wiki to get familiar with this device, as it is mostly the same. The difference in installation between REX a...

REX2 installs, for the most part, identically to a REX. Please read the REX wiki to get familiar with this device, as it is mostly the same.

The difference in installation between REX and REX2, is that you must provide for the additional signals needed by the SRAM. This means the following-

M100 case: You must plug the adapter card into the M100 system bus.

T102 case: You must (a) remove your pluggable 8k ram module that is immediately next to the optrom socket (2) insert the 8k RAM that is connected to REX2. Of course, it goes without saying that this will wipe out your T102 memory contents, so you should save your work before doing all this.

Steps-

(1) power off the laptop, turn it over, and remove the optrom port cover
(2) install REX2 in the optrom socket, following the proceedure outlined in the REX wiki
(3) install the plug and play solution for connecting the SRAM to the needed signals - in M100, install the adapter card or in T102 install the replacement ram module
(4) replace the cover, flip the laptop over and power on.

Now REX2 is installed. The next step in the process of using REX is to initialize the installation by starting REX Manager. Once you are familiar with REX manager, you can use REX2 like it was a normal REX.

The SRAM will not be accessible via REX Manager. It will only be used by MTCPM related software.

MTCPM

2010-05-01T12:13:28Z

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REX2 - custom REX for CP/M support

2010-05-01T12:07:43Z

209.195.115.75: /* REX2 */

== REX2 ==

REX2 is now available. In addition to the 1MB of flash, it also provides 128 kbytes of SRAM. This SRAM is included to allow for an all-RAM mode of operation, for CP/M support. This activity is being done in conjuction with the development of Model T CP/M, via the MTCPM mailing list.

Please see the MTCPM page in the wiki for information on REX2, since it is planned for use in MTCPM only.

REX Hardware Installation

2010-05-01T11:10:06Z

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== REX Hardware Installation ==

To install REX, you must first de-install any currently installed OPTION ROM software. Follow the instructions provided with that product to correctly remove the ROM.

With the power off, flip over your laptop and remove the cover so that you can access the OPTION ROM socket.

[[Image:rex_install_1.jpg]]

REX was provided with a balsa spacer, as well as a ribbon for extraction. First, install the balsa spacer in the OPTION ROM socket as illustrated below.

[[Image:rex_install_2.jpg]]

[[Image:rex_install_3.jpg]]

Now that the balsa spacer is in place, we can place both the ribbon and REX into the socket at the same time.

[[Image:rex_install_4.jpg]]

REX must be inserted in the socket in the correct orientation. First, note that REX has one side that has printed text in white characters on it. The most prominent characters are "REX". REX is placed in the socket with the text remaining visible. This is shown below.

Also, it is critical to align pin 1 of REX with pin 1 of the socket. (It is possible to insert REX backwards and upside down, so be careful!) Note in the image below that, at one end of REX there is a short white dash in the center of one of the short sides. This is shown in the image below, inside the red circle.

Also, take a look at the OPTION ROM socket. At one end of the socket there is a single slot running up and down in the center of the side of the socket, while at the other end of the socket there is a double slot. These are shown in red circles on the socket in the image below.

The white dash on REX must line up with the single slot on the OPTION ROM socket.

[[Image:rex_install_5.jpg]]

Gently press REX into place so that is it level in the socket, and fully seated, pressing the ribbon against the balsa spacer. The springy contacts of the socket should push back to allow REX to seat, and then should firmly hold REX in place.

Make sure that the ribbon is more or less centered in the socket, and that it is not caught in any of the springy contacts, as this may interfere with REX operation.

[[Image:rex_install_6.jpg]]

REX is now installed. Fold the ribbon over top of the socket, and replace the cover.

[[Image:rex_install_7.jpg]]

You can now power on your laptop, and carry on with the system initialization.