TRS-80 Model 16B - 8 MB RAM Upgrade - Part II: DMA Burst Mods

Uploaded By: Myvideo

Published on

3 Mar 2023

1 view

0

0 votes

0

About Share Download Add to

Part two in my quest for 8 MB of RAM on my Radio Shack TRS-80 Model 16B! In this video, I perform four modifications in Tandy Technical Bulletin TB 12/16B:44 on the 6 MHz “short board” 68000 CPU card. These upgrades enable the DMA burst mode functionality required to use XENIX 3.x un-patched, as well as correcting PAL and other issues that were revised on 8 MHz versions of the 68000 board. Music (in order) None – just me prattling on endlessly. Chapters: Project Intro / Attempting Boot of XENIX 3 (0:00) The Mod Kit (1:46) A Look At The 68000 Card And Mod Process (3:02) U48 PAL Upgrade and U36 Prep (5:45) Knife-to-Board: BERR and WAIT Modifications (8:12) First Test Boot…And Failure! (13:43) Second Attempt…It Works! (15:08) What’s Next / Outro (16:22) I do these videos unscripted, so I apologize if the in-the-moment descriptions of things are a bit scattered. If you have any questions/comments about this video, you can find me in any of these f

Share with your friends

Link:

Embed:

<iframe width="640" height="360" src="//myvideo.cc/embed/L2s2aGUrR0hKT3g5Yi9kUmdySW0wckg5c1QvVm9SNEVzb0pYMEcvNnJraz0" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>

Video Size:

Custom size:

x

Autoplay video

Hide player controls

Hide resume playing

Add to Playlist:

Favorites

My Playlist

Watch Later

Restoring my Dad's TRS-80 Model III

3 months ago

00:49:23

Restoring my Dad's TRS-80 Model III

1 94%

Storage On The 8s: Hard Disks #septandy

3 months ago

00:55:47

Storage On The 8s: Hard Disks #septandy

1 15%

EEVblog #645 - TRS-80 Model I Retro Computer Teardown

4 months ago

00:33:24

EEVblog #645 - TRS-80 Model I Retro Computer Teardown

1 15%

EEVblog #116 - Retro Teardown - Tandy Radio Shack TRS-80 Model 100

4 months ago

00:20:45

EEVblog #116 - Retro Teardown - Tandy Radio Shack TRS-80 Model 100

10 38%

старое старьё Пытаемся сёрфить BBS с TRS-80 Model 100

4 months ago

00:51:15

старое старьё Пытаемся сёрфить BBS с TRS-80 Model 100

29 48%

TRS-80 Model 100 Capacitor Replacement

6 months ago

00:27:25

TRS-80 Model 100 Capacitor Replacement

1 71%

How I Made Baldur's Gate III for the World's First Laptop

6 months ago

00:14:01

How I Made Baldur's Gate III for the World's First Laptop

1 81%

Baldur's Gate 3 теперь для олдов умелец воссоздал игру на древнем ПК 40-летней давностиОн адаптировал первый акт игры под

6 months ago

00:00:38

Baldur's Gate 3 теперь для олдов умелец воссоздал игру на древнем ПК 40-летней давностиОн адаптировал первый акт игры под

61 35%

Radio Shack & Tandy Computers Christmas commercials.

9 months ago

00:05:41

Radio Shack & Tandy Computers Christmas commercials.

1 60%

Social media in 1979 Yes!

12 months ago

00:08:44

Social media in 1979 Yes!

1 18%

This is how to use an 8 disk drive on the PC

1 year ago

00:54:48

This is how to use an 8 disk drive on the PC

4 78%

ЭВОЛЮЦИЯ НОУТБУКОВ (Портативные компьютеры) 1975 - 2020

1 year ago

00:12:24

ЭВОЛЮЦИЯ НОУТБУКОВ (Портативные компьютеры) 1975 - 2020

1 28%

Dog Star Adventure Trs-80 Model I Adventure International - Lance Micklus- Full Solution

1 year ago

00:24:10

Dog Star Adventure Trs-80 Model I Adventure International - Lance Micklus- Full Solution

3 5%

Trash to Treasure I rescued these four TRS-80 systems from the trash. Can I resurrect them

1 year ago

00:27:48

Trash to Treasure I rescued these four TRS-80 systems from the trash. Can I resurrect them

1 54%

Part III: TRS-80 Model 4 Network 3 Auto-Boot ROM Upgrade #septandy

1 year ago

00:07:39

Part III: TRS-80 Model 4 Network 3 Auto-Boot ROM Upgrade #septandy

1 20%

TRS-80 Model 16B - 8 MB Upgrade Part IV - MMU Installed, We've Got 8 MB!

2 years ago

00:11:32

TRS-80 Model 16B - 8 MB Upgrade Part IV - MMU Installed, We've Got 8 MB!

1 87%

TRS-80 Model 16B - 8 MB RAM Upgrade - Part II: DMA Burst Mods

2 years ago

00:18:28

TRS-80 Model 16B - 8 MB RAM Upgrade - Part II: DMA Burst Mods

1 91%

TRS-80 Model 16B - 8 MB RAM Upgrade - Part I: Build

2 years ago

00:22:44

TRS-80 Model 16B - 8 MB RAM Upgrade - Part I: Build

1 64%

Test and Try: TRS-80 Model 3

2 years ago

00:27:00

Test and Try: TRS-80 Model 3

1 51%

The TRS-80 Model 4 cant do this! The Frankenstein CoCo is alive again

2 years ago

01:14:40

The TRS-80 Model 4 cant do this! The Frankenstein CoCo is alive again

22 73%

The Medieval Adventure (Text Adventure) - BBPCGC Plays

2 years ago

01:32:41

The Medieval Adventure (Text Adventure) - BBPCGC Plays

2 57%

An unexpected part was keeping the TRS-80 Model 4P from working

2 years ago

00:59:49

An unexpected part was keeping the TRS-80 Model 4P from working

28 52%

TRS-80 Model 1 test and teardown

2 years ago

00:31:29

TRS-80 Model 1 test and teardown

1 27%

Tandy 1000 SX - Replacing The Original SmartWatch and a TRS-80 Model I Update

3 years ago

00:12:51

Tandy 1000 SX - Replacing The Original SmartWatch and a TRS-80 Model I Update

1 93%

0 Comments

Guest