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Date: 2000-12 atari800xl.org comp.sys.atari.8bit
Web Site Downloader -- Part II  
 
1.  William Kendrick  
 More options Dec 1 2000, 9:02 am
Newsgroups: comp.sys.atari.8bit
From: William Kendrick <n@bolt.sonic.net> -
Date: Fri, 01 Dec 2000 00:00:45 GMT
Local: Fri, Dec 1 2000 9:00 am
Subject: Re: Web Site Downloader -- Part II
| | | | | |
LLpwhite <llpwh@cs.com> wrote:

: I had such terrific luck with "SuperBot" I thought I'd try my luck again.
: Any similar "bots" for FTP's?  SuperBot will only do http's.

wget is very good.

-bill!


 
Atari 800 Memory Map  
 
1.  RalphXPN  
 More options Dec 1 2000, 10:52 am
Newsgroups: comp.sys.atari.8bit
From: ralph@aol.com (RalphXPN) -
Date: 01 Dec 2000 01:51:51 GMT
Local: Fri, Dec 1 2000 10:51 am
Subject: Atari 800 Memory Map
| | | | | |
Hi Everybody,

Rather than research...I thought I'd just ask!!  =)

Is there a space in the atari 800 memory map that is empty???

Reason: I would like to make myself a lil lab to directly map my evil
expiraments.
Depending on the window I would put decoding logic to use for my bread board.
any help would really be appreciated

thanks

Ralph


 
 
2.  RHamiIton5  
 More options Dec 1 2000, 1:24 pm
Newsgroups: comp.sys.atari.8bit
From: rhamiit@aol.comedy.com (RHamiIton5) -
Date: 01 Dec 2000 04:23:29 GMT
Local: Fri, Dec 1 2000 1:23 pm
Subject: Re: Atari 800 Memory Map
| | | | | |
In a stock 800, there is a 4K gap at $C000 to $CFFF (48K to 52K). Omnimon and
Omniview sit there and some Axlon type memory expansions do their bank
switching by accessing some bytes in that range. All of the XL/XE's have ROM
code there.

> ralph@aol.com  (RalphXPN) asked:
>Is there a space in the atari 800 memory map that is empty???

>Reason: I would like to make myself a lil lab to directly map my evil
>experiments. Depending on the window I would put decoding logic to use
> for my bread board. any help would really be appreciated

-Ron

Inform everyone that communications have completely broken down.


 
Games Computers Play  
 
1.  Juan Peguero  
 More options Dec 1 2000, 5:00 pm
Newsgroups: comp.sys.atari.8bit
From: Juan Peguero <j@compuserve.com> -
Date: 2000/12/01
Subject: Re: Games Computers Play
| | | | | |
Hey!  I remember GCP!! I subscribed in '86, stayed 'til they went under.
Still have the manual too. (somewhere)

Unfortunately, I have no idea on how to contact them.


 
read & write atari disk with PC  
 
1.  RHamiIton5  
 More options Dec 2 2000, 10:59 am
Newsgroups: comp.sys.atari.8bit
From: rhamiit@aol.comedy.com (RHamiIton5) -
Date: 02 Dec 2000 01:58:51 GMT
Local: Sat, Dec 2 2000 10:58 am
Subject: Re: read & write atari disk with PC
| | | | | |

>"Carlos" carlo.arma@tin.it asked:
>I have a PC with 5" disk drive, how I can read and write atari single
> density or double density (1050 atari disk drive) ?

Anadisk claims to do single.. I have no success. See instructions at the bottom
of this page:

AtariLink from Hiassoft works for me; it is sometimes called AtariUtil or
AtariDisk, but not MyUtil which is different and less effective for me and
sometimes also called AtariDisk (very confusing). They both use true double
(180K) density and not the medium (130K) 1050 capacity.

-Ron

Inform everyone that communications have completely broken down.


 
 
2.  Deja User  
 More options Dec 2 2000, 5:00 pm
Newsgroups: comp.sys.atari.8bit
From: "Deja User" <chainsa@my-deja.com> -
Date: 2000/12/02
Subject: RE: read & write atari disk with PC
| | | | | |

In a nutshell, you cant!
It was probably this question alone that started this forum. Your best bet is to use an SIO2PC cable and software like prosystem or APE98 to network your PC's harddrive to the 8bit and do transfers that way.
Mo

Linux is like a wigwam, no gates, no windows, just an apache inside!!
8-)

------------------------------------------------------------
--== Sent via Deja.com ==--
Before you buy.

 Sent via Deja.com
 Before you buy.


 
Atari 400 HW problem...  
 
1.  RHamiIton5  
 More options Dec 2 2000, 11:03 am
Newsgroups: comp.sys.atari.8bit
From: rhamiit@aol.comedy.com (RHamiIton5) -
Date: 02 Dec 2000 02:02:21 GMT
Local: Sat, Dec 2 2000 11:02 am
Subject: Re: Atari 400 HW problem...
| | | | | |

>r@my-deja.com asked:
>I am thinking this ROM is toasted.  Does anyone know part numbers
> beside the Atari numbers?  And possibly a checksum?  Can I reburn a ROM
> or am I desperately seeking ROMS?  How about all the checksums
> on the ROMS?  I can yank them and use an eprom programmer to check...

this site has some checksum stuff:

might be beneficial good luck

-Ron

Inform everyone that communications have completely broken down.


 
 
2.  gaberry  
 More options Dec 9 2000, 12:40 am
Newsgroups: comp.sys.atari.8bit
From: gabe@my-deja.com -
Date: Fri, 08 Dec 2000 15:33:30 GMT
Local: Sat, Dec 9 2000 12:33 am
Subject: Re: Atari 400 HW problem...
| | | | | |
Ok.. as a follow up and possible future info for anyone who ever has the
same problems.  The A105 (2k) OS system ROM is corrupted.  I replaced
it, and it works fine.  Now I just need to make a copy or burn one for
myself.  This chips pinout looks non-standard, does anyone know if there
is an eprom I can substitute?  I can't find a decent web-page with info
about the chips.

Also.. I am using an MC6821 instead of the 6520 PIA chip.  It seems to
be working with my limited testing.  Anyone know of any major problems
with doing this?

Does anyone even repair their old crap??? :))

-Greg

Sent via Deja.com
Before you buy.


 
 
3.  melee5  
 More options Dec 9 2000, 10:40 pm
Newsgroups: comp.sys.atari.8bit
From: mel@my-deja.com -
Date: Sat, 09 Dec 2000 13:28:58 GMT
Local: Sat, Dec 9 2000 10:28 pm
Subject: Re: Atari 400 HW problem...
| | | | | |
In article <90qv0a$k6@nnrp1.deja.com>,

Since I don't have a 400 or that chip in my hand, I can't say for
certain, but Atari was very tricky when producing ROMs for their
products.  I believe they did it for the express purpose of
keeping 'hackers' from releasing a better product than they did, but at
any rate, they would swap around the chip select signal for an address
pin and then make the chip enable pin 'positive enabled' instead of
negative as EPROMs are.  These are custom chips available only in mass
quantities from a slew of manufacturers and are known in the industry
as 'maskable PROM's.  They are configured and burned at the factory so
the little guy has no choice but to use an inverter device to invert
the chip select signal and do a little re-wiring to get the pins right
for an EPROM.  Just to confuse matters more, the chips are labeled with
custom 'in house' numbers that the factory will _not_ discuss with you
or anyone else, so you can't even find out just what the pin out or
memory size is exactly.  You have to guess and when you are right, it
will work.  I have heard of desperate fellows cutting a window in the
top of the chip and erasing them with UV just like an EPROM, then
reprogramming them, but I won't stand by the method or claim it works
in any way.  Best of luck on that project, but having said all the
above, the OS ROM of an XL/XE is pin for pin compatible with a 27128
EPROM.  I guess Atari gave up on the convoluted ROM policy at least for
that one (or more?)instance.  Are you sure your ROM is corrupt and not
suffering from dirty pin/socket disease?  These are old machines and
they get that bug from time to time, you know.  The system boards on
the 400/800 were famous for that disease as their contacts were tin
plated for the early machines.  A decent schematic should allow you
to 'pinout' the chip and compare the results to a 2716(?) EPROM.

The MC68B21 PIA is pin for pin compatible with our 6520 PIA, the
MC68A21 is however, a 1 Mhz version and should not be used, since our
8bits are clocked at 1.7 Mhz.  I don't know what to tell you if you are
missing the 'B' or the 'A'.  'B' = 2 Mhz version.  MC = Motorola.
Hitachi made the HD68B21 which we can also use.  Atari used it without
the Atari 'CO' numbering system on their last runs of XE boards.

I think its patently obvious that I've never even had the top off of
any of _my_ Atari machines, - repair??, what's that? :)

Sent via Deja.com
Before you buy.


 
 
4.  gaberry  
 More options Dec 11 2000, 2:40 pm
Newsgroups: comp.sys.atari.8bit
From: gabe@my-deja.com -
Date: Mon, 11 Dec 2000 05:32:16 GMT
Local: Mon, Dec 11 2000 2:32 pm
Subject: Re: Atari 400 HW problem...
| | | | | |
In article <90tc2o$en@nnrp1.deja.com>,

Thanks for the post.. I think the version I have is a 1Mhz chip.. but it
appears to be working.. So woooo hooo! :)  PIA's aren't to hard to come
by... so if I have problems I will upgrade it.

And yes I am sure it is the ROM.. I pulled it out and swapped with a
guy.  It works with the new ROM.. mine does not even after the swap.  I
have tried to trace those ROM's before to no-avail.  I understand their
reasoning.  It just makes it bad when I want to fix the thing.
Hopefully I will find someone with some spares and talk them out of
them.

I have the SAMS photo facts on this computer if anyone needs it to help
repairs.

I have an 800XL.. but my 400 was my oldest and favorite computer.  I
even upgraded the memory way back in '82 :) so I have had it apart
plenty.  I am suprised it works as well as it still does.

-Greg

Sent via Deja.com
Before you buy.


 

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