Sockets

[Theoryman]

So far, I've taken apart:

 

several 400. All were socketed.

several 800. All were socketed.

three 1200XL. All were socketed.

several 800XL All were socketed

one 600XL. It was socketed.

 

Does anybody know what I will find in the 130XE, the 65XE, the XEGS?

 

How about the 810, the 1050, the xf551?

 

Other items?

 

I ask as I am planning some hardware upgrades and I'd like an idea just how hard they will be to install.

 

In a socketed system, they will be plug and go. in a non-socketed system, there could be an issue...

 

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[+Stephen]

If you find a socket in a 130XE, it's only because the IC under it failed when the machine was initially built.

[Rybags]

For the most part, socketed was order of the day until late XL era - some XLs partially, some with none but probably most fully socketed.

 

In the case of the VBXE hardware upgrade, it requires replacing standard with precision socket for Antic.

[Theoryman]

I'm getting back into Atari in a big way. First order of business it getting my development stuff setup.

 

Then, 65C02 CPU's. I'm making a small upgrade board for the XL's. I assume it will work in the XE's as well, but will test.

 

I will run off a few of these. Others interested, let me know.

 

They will fit under the shield in the 600/800/1200 XL's. Looking for XE gear now to test fit and see just how much work the upgrade will be on those.

 

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[Rybags]

65C02 - these days a turbo (esp 65816) upgrade is much more desirable, a few are around but nothing really has gotten off the ground in any big way.

 

Easiest install for 65C02 is probably older 400/800 with the normal 6502B (non-Sally) CPU as the /HALT logic is implemented externally.

[Theoryman]

I know that... And I am planning a 65816 for later on.

 

However, /HALT is not part of the 65816. Doing the 65C02 first allows me some experimentation.

 

Planned progression is:

 

65C02 at 1.79MHz

65816 at 1.79MHz with 16bit addressing (segment 0)

65816 at 1.79MHz with 24bit addressing, segment selection and on-board extended RAM.

65816 at 1.79MHz in segment 0 and 14.32MHz in other segments. implemented by phi 2 stretching. Hardest part will be determining what segment a read/write referencing quickly enough to decide if the waits are needed.

 

I figure I'll need software help in doing a 8/16 OS at stage 3

 

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[Fox-1 / mnx]

8/16 bit O.S: http://drac030.krap.pl/en-specyfikacja.php

 

 

If case you missed it, this thread http://atariage.com/forums/topic/215730-what-kind-of-65816-do-you-want/?do=findComment&comment=2813369 may be useful to read too.

[thorfdbg]

several 800XL All were socketed

 

Then you were lucky. The later batches of the 800XL were not socketed. The european (PAL) versions of the 800XL with the revision C basic did not use sockets. The earlier batches with revision B on board did use sockets.

[Theoryman]

8/16 bit O.S: http://drac030.krap.pl/en-specyfikacja.php

 

 

If case you missed it, this thread http://atariage.com/forums/topic/215730-what-kind-of-65816-do-you-want/?do=findComment&comment=2813369 may be useful to read too.

 

Interesting. Different plan than mine. I'll be buying a copy.

 

Still going ahead on mine. But going to work on a clock doubled 65C02 in the middle

 

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