Jump to content

Photo

SRAM-Charger for Indus-GT - interest poll

SRAM Charger Indus GT

128 replies to this topic

#1 tf_hh OFFLINE  

tf_hh

    Dragonstomper

  • 705 posts
  • Location:Germany

Posted Thu Aug 2, 2018 1:36 PM

Hi,

 

another little project is made by me: A SRAM-Charger board for the Indus GT drive (and compatible ones). This board enables the usage of CP/M inside the drive´s electronic (based on a Z80 CPU).

 

The PCB is already tested and ready. Here are two pictures:

 

SRAM_Charger.png

SRAM_Charger2.png

 

Because this is a very special thing and I assume that not a huge amount of people want one, I want ask for your interest about such a board. The final price will be something between 8 and 12 Euros each.

 

Please show your interest here, if you want one (or more). I will collect the answer for 2-3 weeks and will made some pieces then. They´re offered as my other projects then in my "info pdf".

 

A very big "Thank you!" to Eric Bacher, who enables me to make this thing real.

 

Best regards, Jurgen

 



#2 AtariGeezer ONLINE  

AtariGeezer

    River Patroller

  • 2,825 posts
  • Location:Santee, CA

Posted Thu Aug 2, 2018 1:40 PM

Cool gizmo, I would buy 2 or 3 :)



#3 rdea6 OFFLINE  

rdea6

    River Patroller

  • 2,741 posts
  • Location:Arizona USA

Posted Thu Aug 2, 2018 1:44 PM

I will need two (2) of these.



#4 ZuluGula ONLINE  

ZuluGula

    Chopper Commander

  • 106 posts
  • Location:Chicago, Il

Posted Thu Aug 2, 2018 1:58 PM

I will buy 2.

#5 xrbrevin OFFLINE  

xrbrevin

    Moonsweeper

  • 270 posts
  • Mr Ziggy loves to extend the 1050 heatsink!
  • Location:UK

Posted Thu Aug 2, 2018 2:10 PM

1 please :)



#6 JR> OFFLINE  

JR>

    Moonsweeper

  • 294 posts

Posted Thu Aug 2, 2018 2:13 PM

2 please



#7 brenski OFFLINE  

brenski

    Stargunner

  • 1,632 posts
  • How should we f**k off, oh Lord ?
  • Location:Ventura Highway, in the sunshine [UK]

Posted Thu Aug 2, 2018 3:18 PM

if these are Indus only - i'll take one

if they'll fit to CA2001 and LDW2000 then count me in for three

 

thanks



#8 Brentarian OFFLINE  

Brentarian

    Moonsweeper

  • 420 posts
  • Location:Columbus, Georgia USA

Posted Thu Aug 2, 2018 3:24 PM

Two for me please!

#9 ndary OFFLINE  

ndary

    Dragonstomper

  • 518 posts
  • Location:Israel

Posted Thu Aug 2, 2018 3:41 PM

i will take 2

 

Nir



#10 kheller2 OFFLINE  

kheller2

    Stargunner

  • 1,255 posts
  • Location:PA, USA

Posted Thu Aug 2, 2018 3:54 PM

Sign me up for 2-3



#11 ACML OFFLINE  

ACML

    Dragonstomper

  • 860 posts
  • Location:USA

Posted Thu Aug 2, 2018 5:48 PM

Will this work on any Indus GT?  I would want it to run CP/M.  Is the 64K RAM on board?  



#12 MrMartian ONLINE  

MrMartian

    Moonsweeper

  • 286 posts
  • Location:Ontario, Canada

Posted Thu Aug 2, 2018 5:58 PM

I would like one as well



#13 ACML OFFLINE  

ACML

    Dragonstomper

  • 860 posts
  • Location:USA

Posted Thu Aug 2, 2018 8:01 PM

Will this work on any Indus GT?  I would want it to run CP/M.  Is the 64K RAM on board?  

Sorry, I realize the RAM is onboard, but is this all that's needed to run CP/M?



#14 Caterpiggle OFFLINE  

Caterpiggle

    Dragonstomper

  • 764 posts

Posted Thu Aug 2, 2018 8:05 PM

PLEASE add 1. :-D


Edited by Caterpiggle, Thu Aug 2, 2018 8:29 PM.


#15 visionik OFFLINE  

visionik

    Star Raider

  • 58 posts

Posted Thu Aug 2, 2018 8:51 PM

I'd like 5.  thank you!



#16 _The Doctor__ OFFLINE  

_The Doctor__

    Quadrunner

  • 5,180 posts
  • Location:10-0-11-00:02

Posted Thu Aug 2, 2018 9:07 PM

yes the ram is what's needed, then you can boot the cpm disks and use the Atari as the terminal.



#17 Gandor OFFLINE  

Gandor

    Moonsweeper

  • 368 posts
  • Location:41005

Posted Thu Aug 2, 2018 9:26 PM

Interested in 2



#18 mytek OFFLINE  

mytek

    River Patroller

  • 3,017 posts
  • Location:Santa Rosa, CA

Posted Thu Aug 2, 2018 9:28 PM

I remember using CPM on an Osborne running WordStar and a database program I think around 1985. Pretty much all text based applications if I recall. So what makes this so attractive on the A8 vs. running equivalent Atari native applications such as The Last Word and SynFile, SybCalc, ect.? Seems like any native Atari application would run circles around a similar CPM application.



#19 Umberto ONLINE  

Umberto

    Moonsweeper

  • 278 posts
  • Location:Washington State

Posted Thu Aug 2, 2018 9:38 PM

I would buy 2



#20 oracle_jedi OFFLINE  

oracle_jedi

    Moonsweeper

  • 452 posts
  • Nothing to Declare
  • Location:Seattle, WA

Posted Thu Aug 2, 2018 10:50 PM

I remember using CPM on an Osborne running WordStar and a database program I think around 1985. Pretty much all text based applications if I recall. So what makes this so attractive on the A8 vs. running equivalent Atari native applications such as The Last Word and SynFile, SybCalc, ect.? Seems like any native Atari application would run circles around a similar CPM application.

 

Probably the same reason that we would consider using The Last Word and SynFile, SybCalc, ect over Office 2016.  Because we can!  And we're a little odd.

 

I already have an Indus GT Super Charger, from the run Tregare did a few years back.  It's fun to boot the Indus into CP/M mode and play around with those old apps.  I've especially enjoyed playing Zork in native 80 column mode, but be warned - it is pretty slow!

 

Glad to see this great expansion option being produced again.



#21 ACML OFFLINE  

ACML

    Dragonstomper

  • 860 posts
  • Location:USA

Posted Thu Aug 2, 2018 10:55 PM

I remember using CPM on an Osborne running WordStar and a database program I think around 1985. Pretty much all text based applications if I recall. So what makes this so attractive on the A8 vs. running equivalent Atari native applications such as The Last Word and SynFile, SybCalc, ect.? Seems like any native Atari application would run circles around a similar CPM application.

Pure nostalgia.  I ran an ATR-8000 and CP/M 2.2 around 1987 and had an awesome graphing program called "Energraphics".  You couldn't see the result until you printed in on paper, but it made report quality XY scatter plots and did polynomial curve fitting.  I had Wordstar, but like you surmised, Atariwriter was a better application.  Was there a FORTRAN for CP/M?  Back in the day, I always wondered why Atari never had a FORTRAN for the 8 bit.  I guess it was too close to BASIC.  I could format a 1.2Mb floppy as a 77 track 8" floppy and you had a 1MB floppy for the 8-bit that MYDOS could write to.  Would have never had that capability without CP/M and my ATR-8000.  


Edited by ACML, Thu Aug 2, 2018 10:56 PM.


#22 Thorsten GŁnther OFFLINE  

Thorsten GŁnther

    Stargunner

  • 1,149 posts
  • Location:Wedel, Germany

Posted Thu Aug 2, 2018 11:17 PM

Interested in one unit. Now time to acquire such a drive...



#23 mytek OFFLINE  

mytek

    River Patroller

  • 3,017 posts
  • Location:Santa Rosa, CA

Posted Thu Aug 2, 2018 11:59 PM

Ok that all makes sense, just checking to see if there were a lot of CPM applications that never had an Atari equivalent that would make this a must have item. But yes I can see the appeal from a nostalgic aspect, which is probably why a bunch of us are here in the first place  ;) .

 

Besides the CPM aspect, is there any other Atari related benefits of having the extra RAM in the Indus?

 

Lastly without opening the case, is there any way to peek and/or poke to see if an Indus drive already has a RAM-Charger installed?

 

Reason I am asking all of this, is because I have a very nice Indus drive sitting over here that I wouldn't want to see it miss out on this new run of boards if it made sense for my use.

 

 

Probably the same reason that we would consider using The Last Word and SynFile, SybCalc, ect over Office 2016.  Because we can!  And we're a little odd.

 

I already have an Indus GT Super Charger, from the run Tregare did a few years back.  It's fun to boot the Indus into CP/M mode and play around with those old apps.  I've especially enjoyed playing Zork in native 80 column mode, but be warned - it is pretty slow!

 

Glad to see this great expansion option being produced again.

 

 

Pure nostalgia.  I ran an ATR-8000 and CP/M 2.2 around 1987 and had an awesome graphing program called "Energraphics".  You couldn't see the result until you printed in on paper, but it made report quality XY scatter plots and did polynomial curve fitting.  I had Wordstar, but like you surmised, Atariwriter was a better application.  Was there a FORTRAN for CP/M?  Back in the day, I always wondered why Atari never had a FORTRAN for the 8 bit.  I guess it was too close to BASIC.  I could format a 1.2Mb floppy as a 77 track 8" floppy and you had a 1MB floppy for the 8-bit that MYDOS could write to.  Would have never had that capability without CP/M and my ATR-8000.  



#24 Nezgar OFFLINE  

Nezgar

    Stargunner

  • 1,171 posts
  • Location:Regina SK Canada

Posted Fri Aug 3, 2018 12:00 AM

I have 2 Indus GT's that I'd love to upgrade to try out the CP/M stuff, so definitely 2 for me, and probably 1-2 more in case I come across other drives in the future.

#25 Nezgar OFFLINE  

Nezgar

    Stargunner

  • 1,171 posts
  • Location:Regina SK Canada

Posted Fri Aug 3, 2018 12:07 AM

Besides the CPM aspect, is there any other Atari related benefits of having the extra RAM in the Indus?


I've yet to witness it myself, but what I gather from the writings of others is that with RamCharger+Super SyncroMesh, the drive would to full disk read caching (buffering) at the sector level, maybe up to 64K worth? So most of a disk could be stored in RAM and not have to spin up the disk access after the 1st time. Much more buffer compared to single track buffering like Happy/Speedy/Duplicator.





Also tagged with one or more of these keywords: SRAM, Charger, Indus GT

0 user(s) are browsing this forum

0 members, 0 guests, 0 anonymous users