MegaSTE HD floppy GAL (UA2) JED file

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rpineau
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MegaSTE HD floppy GAL (UA2) JED file

Post by rpineau »

I have a new to me MegaSTE and I'm slowly upgrading it (4MB RAM and TOS 2.06 done).
It came with the "old" PAL for UA2. So I got the JED file from Rodolphe Czuba's site ( MSTE_UA2.JED from the ST_GALs.zip file) and programed a GAL20V8B .. but when I replace the PAL with the new GAL, I get nothing.. black screen, monitor doesn't recognize the rez. If I put the PAL back in place it boots. I tried with 3 GALs (all 20V8B ) but same thing so I think the file might be bad or wrong.
Does anybody has a know working file for the GAL20V8 for UA2 ?
Thanks.
Rodolphe
Falcon + AB040 + Eclipse PCI + ATI Rage VGA card + NE2000 Ethernec + HxC Floppy Emulator
MegaSTE 4MB + CosmosEx / 1040 STF for hardware dev
http://www.rti-zone.org/atari.php
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frank.lukas
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by frank.lukas »

I don´t know it is the same ...

Code: Select all

20.07.1996, 10:09:32

MODE_HD.JED

created with GAL-Programmer V1.6, (c) Apr 24 1994 by Markus Hoffmann *

F0 *

N pin 19: inverted three-state output *
L0000 1111 1111 1111 1111 1111 1111 1111 1111 *
L0032 1111 1011 1111 0111 1111 1111 1111 1111 *
L0064 1111 1111 1011 1111 0111 1111 1111 1111 *

N pin 18: inverted three-state output *

N pin 17: inverted registered output *
L0512 1111 1111 1101 1111 1111 1111 1111 1111 *

N pin 16: inverted registered output *

N pin 15: inverted registered output *

N pin 14: inverted registered output *

N pin 13: inverted three-state output *
L1536 1111 1111 1111 1111 1111 1111 1111 1111 *
L1568 1101 1111 1110 1111 1111 1111 1111 1111 *
L1600 0110 1111 1111 1111 1111 1111 1111 1110 *
L1632 1110 1111 1110 1111 1111 1111 1111 1101 *

N pin 12: inverted three-state output *

N XOR(19..12) bits: *
L2048 00000000 *

N user ID: "MODE HD " *
L2056 01001101010011110100010001000101
      00100000010010000100010000100000 *

N AC1(19..12) bits: *
L2120 11000011 *

N enable product terms: *
L2128 11111111111111111111111111111111
      11111111111111111111111111111111 *

N SYN bit: *
L2192 0 *

N AC0 bit: *
L2193 1 *

0000
Take a look at the Chips & Chips or/and the Atari Mega STE Floppy Upgrade Info/Document ...

Code: Select all

Trotz HD-Laufwerk und Floppycontroller will der Rechner nicht?

   Es gibt insgesamt drei Boardlayouts vom MegaSTE, diese sind nicht
   alle vom Werk aus HD-Diskettenlaufwerk-tauglich!

   Hier ein Auszug aus der "Einbauanleitung für das HD-Floppy Upgra-
   de Kit" von ATARI:

   AUSZUG Start
   Beim MEGA STE muß noch überprüft werden, ob eine Verbindung von U7
   (68000 CPU) Pin 32 zu UA02 (PAL20L8) Pin 19 besteht. Falls nicht,
   bitte auf der Board-Unterseite einen kurzen Draht einlöten. Außer-
   dem muß das IC UA02 die Bezeichnung C301901-002 aufgedruckt haben.
   Falls Sie ein IC mit der Bezeichnung C301901-001 eingebaut haben,
   muß dieses ausgetauscht werden.
   AUSZUG Ende
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rpineau
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by rpineau »

I'll try with your file.
I already check the connection between the CPU pin 32 and the GAL pin 19 using my multimeter continuity tester.
Thanks for the file.
Rodolphe
Falcon + AB040 + Eclipse PCI + ATI Rage VGA card + NE2000 Ethernec + HxC Floppy Emulator
MegaSTE 4MB + CosmosEx / 1040 STF for hardware dev
http://www.rti-zone.org/atari.php
rpineau
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by rpineau »

Looks like the file are identical :

Code: Select all

diff -s MSTE_UA2.JED ~/Downloads/MSTE_GALS/MSTE_UA2.JED 
Files MSTE_UA2.JED and /Users/roro/Downloads/MSTE_GALS/MSTE_UA2.JED are identical
So if you used this file, then my problem is not the file.
Falcon + AB040 + Eclipse PCI + ATI Rage VGA card + NE2000 Ethernec + HxC Floppy Emulator
MegaSTE 4MB + CosmosEx / 1040 STF for hardware dev
http://www.rti-zone.org/atari.php
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frank.lukas
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by frank.lukas »

I have no experience with it, I own no Mega STE machine ...
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rpineau
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by rpineau »

So I got it working. The file is actually OK (MSTE_UA2.JED is the right file for MegaSTE).. my programmer .. not so much.
I use a G540 (cheap Chinese programmer) on a Windows 7 virtual machine (VirtualBox) on Mac OS X. I never had issue programing 22V10... but apparently it has issue with the 22V8.
So I had to revert to using an OLD home made programmer on the MegaSTE itself using galprom.prg ... and that worked !!!!
I now have a functional HD floppy (actually a HxC floppy emulator) working. :)

Rodolphe
Falcon + AB040 + Eclipse PCI + ATI Rage VGA card + NE2000 Ethernec + HxC Floppy Emulator
MegaSTE 4MB + CosmosEx / 1040 STF for hardware dev
http://www.rti-zone.org/atari.php
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qq1975b
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by qq1975b »

Mmmm...I use a G540 and worked Ok programming the needed GAL chip. Maybe these programmers are not very reliable... :roll:
Trying to learn...
rpineau
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Re: MegaSTE HD floppy GAL (UA2) JED file

Post by rpineau »

It could be. It can also be the fact that I use it in a VirtualBox Windows 7 64 bit virtual machine ...
I ordered a TOP 3000 so we'll see if that works better.
Falcon + AB040 + Eclipse PCI + ATI Rage VGA card + NE2000 Ethernec + HxC Floppy Emulator
MegaSTE 4MB + CosmosEx / 1040 STF for hardware dev
http://www.rti-zone.org/atari.php
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